3 GHz capable, 10 W carrying power (at 3 GHz), 50Ω/75Ω impedance and 1 Form C relays

Transcription

1 3 GHz capable, W carrying power (at 3 GHz), Ω/7Ω impedance and Form C relays RS RELAYS (ARS) RoHS compliant FEATURES. Miniature design mm..83 inch (standard terminal) 6% OFF in volume (Compared to previous our product). Lineup includes silent type. (7Ω type only) Operation noise (Unit: db) RS (Silent type) 4 RE 3. Excellent high frequency characteristics 4. Lineup includes surface-mount terminal type E and Y layouts available.. Lineup includes reversed contact type Great design freedom is possible using reversed contact type in which the positions of the N.O. and N.C. contacts are switched. TYPICAL APPLICATIONS. Broadcasting and video equipment markets Broadcasting equipment STB/tuner, etc.. Mobile phone base stations 3. Communications market Antenna switching All types of wireless devices 4. Measurement equipment market Spectrum analyzer and oscilloscope, etc. If you consider using applications with low level loads or with high frequency switching, please consult us. ORDERING INFORMATION RS relays Contact arrangement : Standard contact type ( Form C) 3: Reversed contact type ( Form C) Nil: A: Y: ARS Operating function : Single side stable standard type (: 7Ω) : coil latching type (: 7Ω) : coil latching type (: 7Ω) 3: Single side stable silent type (: 7Ω) 4: (: Ω) : coil latching type (: Ω) 6: coil latching type (: Ω) Coil, DC 3: 3 V, 4H: 4. V, 9: 9 V, : V, 4: 4 V (H=.) Packing style Nil: Carton packing (Standard terminal only) X: Z: Standard terminal Surface-mount terminal, E layout Surface-mount terminal, Y layout Tube packing (Surface-mount terminal only) Tape and reel packing (picked from -pin side) (Surface-mount terminal only) Tape and reel packing (picked from 8-pin side) (Surface-mount terminal only)

2 TYPES. Standard terminal and standard contact type Standard packing: pcs. in an inner package; pcs. in an outer package 3 V DC ARS43 ARS3 ARS63 4. V DC ARS44H ARS4H ARS64H 9 V DC ARS49 ARS9 ARS69 V DC ARS4 ARS ARS6 4 V DC ARS44 ARS4 ARS64 Standard type Silent type 3 V DC ARS3 ARS3 ARS3 ARS3 4. V DC ARS4H ARS4H ARS4H ARS34H 9 V DC ARS9 ARS9 ARS9 ARS9 V DC ARS ARS ARS ARS3 4 V DC ARS4 ARS4 ARS4 ARS34. Standard terminal and reversed contact type Standard packing: pcs. in an inner package; pcs. in an outer package 3 V DC ARS343 ARS33 ARS V DC ARS344H ARS34H ARS364H 9 V DC ARS349 ARS39 ARS369 V DC ARS34 ARS3 ARS36 4 V DC ARS344 ARS34 ARS364 Standard type Silent type 3 V DC ARS3 ARS33 ARS33 ARS33 4. V DC ARS4H ARS34H ARS34H ARS334H 9 V DC ARS9 ARS39 ARS39 ARS39 V DC ARS ARS3 ARS3 ARS33 4 V DC ARS4 ARS34 ARS34 ARS Surface-mount terminal and standard contact type, E layout Standard packing: 4 pcs. in an inner package (tube);, pcs. in an outer package Standard packing: pcs. in an inner package (tape and reel);, pcs. in an outer package Note: The box at the end of a part number shows where packing type is indicated. If there is no indication, tube packing will be used. If X or Z is added, tape and reel packing will be used. Example: ARS4A3 (tube packing), ARS4A3X (tape and reel packing) 4. Surface-mount terminal and standard contact type, Y layout 3 V DC ARS4A3 ARSA3 ARS6A3 4. V DC ARS4A4H ARSA4H ARS6A4H 9 V DC ARS4A9 ARSA9 ARS6A9 V DC ARS4A ARSA ARS6A 4 V DC ARS4A4 ARSA4 ARS6A4 3 V DC ARSA3 ARSA3 ARSA3 4. V DC ARSA4H ARSA4H ARSA4H 9 V DC ARSA9 ARSA9 ARSA9 V DC ARSA ARSA ARSA 4 V DC ARSA4 ARSA4 ARSA4 3 V DC ARS4Y3 ARSY3 ARS6Y3 4. V DC ARS4Y4H ARSY4H ARS6Y4H 9 V DC ARS4Y9 ARSY9 ARS6Y9 V DC ARS4Y ARSY ARS6Y 4 V DC ARS4Y4 ARSY4 ARS6Y4 3 V DC ARSY3 ARSY3 ARSY3 4. V DC ARSY4H ARSY4H ARSY4H 9 V DC ARSY9 ARSY9 ARSY9 V DC ARSY ARSY ARSY 4 V DC ARSY4 ARSY4 ARSY4 Standard packing: 4 pcs. in an inner package (tube);, pcs. in an outer package Standard packing: pcs. in an inner package (tape and reel);, pcs. in an outer package Note: The box at the end of a part number shows where packing type is indicated. If there is no indication, tube packing will be used. If X or Z is added, tape and reel packing will be used. Example: ARS4Y3 (tube packing), ARS4Y3X (tape and reel packing)

3 . Surface-mount terminal and reversed contact type, E layout 3 V DC ARS34A3 ARS3A3 ARS36A3 4. V DC ARS34A4H ARS3A4H ARS36A4H 9 V DC ARS34A9 ARS3A9 ARS36A9 V DC ARS34A ARS3A ARS36A 4 V DC ARS34A4 ARS3A4 ARS36A4 3 V DC ARSA3 ARS3A3 ARS3A3 4. V DC ARSA4H ARS3A4H ARS3A4H 9 V DC ARSA9 ARS3A9 ARS3A9 V DC ARSA ARS3A ARS3A 4 V DC ARSA4 ARS3A4 ARS3A4 Standard packing: 4 pcs. in an inner package (tube);, pcs. in an outer package Standard packing: pcs. in an inner package (tape and reel);, pcs. in an outer package Note: The box at the end of a part number shows where packing type is indicated. If there is no indication, tube packing will be used. If X or Z is added, tape and reel packing will be used. Example: ARS34A3 (tube packing), ARS34A3X (tape and reel packing) 6. Surface-mount terminal and reversed contact type, Y layout 3 V DC ARS34Y3 ARS3Y3 ARS36Y3 4. V DC ARS34Y4H ARS3Y4H ARS36Y4H 9 V DC ARS34Y9 ARS3Y9 ARS36Y9 V DC ARS34Y ARS3Y ARS36Y 4 V DC ARS34Y4 ARS3Y4 ARS36Y4 3 V DC ARSY3 ARS3Y3 ARS3Y3 4. V DC ARSY4H ARS3Y4H ARS3Y4H 9 V DC ARSY9 ARS3Y9 ARS3Y9 V DC ARSY ARS3Y ARS3Y 4 V DC ARSY4 ARS3Y4 ARS3Y4 Standard packing: 4 pcs. in an inner package (tube);, pcs. in an outer package Standard packing: pcs. in an inner package (tape and reel);, pcs. in an outer package Note: The box at the end of a part number shows where packing type is indicated. If there is no indication, tube packing will be used. If X or Z is added, tape and reel packing will be used. Example: ARS34Y3 (tube packing), ARS34Y3X (tape and reel packing) RATING. Coil data ) 3 V DC ) coil latching type 3) coil latching type Pick-up Drop-out current [±%] Coil resistance [±%] 66.7 ma 4 Ω 4. V DC 7%V or less of %V or more of 44.4 ma.3 Ω 9 V DC V DC nominal nominal. ma 6.7 ma 4 7 Ω Ω 4 V DC 8.3 ma,88 Ω 3 V DC Set Reset current [±%] Coil resistance [±%] 66.7 ma 4 Ω 4. V DC 7%V or less of 7%V or less of 44.4 ma.3 Ω 9 V DC V DC nominal nominal. ma 6.7 ma 4 7 Ω Ω 4 V DC 8.3 ma,88 Ω 3 V DC Set Reset current [±%] Coil resistance [±%] 33.3 ma. Ω 4. V DC 7%V or less of 7%V or less of 88.9 ma.6 Ω 9 V DC nominal nominal 44.4 ma. Ω V DC 33.3 ma 36 Ω 4 V DC 6.7 ma,44 Ω power mw power mw power 4 mw Max. applied (at 6 C 4 F) %V or less of nominal Max. applied (at 6 C 4 F) %V or less of nominal Max. applied (at 6 C 4 F) %V or less of nominal 3

4 . Specifications Item Specifications Arrangement Form C Contact Contact material Gold plating Contact resistance Max. mω (By drop V AC ma) Nominal switching capacity W (at 3 GHz, : /7Ω, : Max..4), ma 4 V DC (resistive load) Contact carrying power Max. W (at 3GHz, : /7Ω, : Max..4) Max. switching V DC Rating Max. switching current. A DC Nominal mw operating coil latching type mw power coil latching type 4mW Max../9MHz, Max..4/3GHz (Standard terminal) High frequency Max../9MHz, Max..4/3GHz (Surface-mount terminal) characteristics, Max..dB/9MHz, Max..3dB/3GHz (Standard terminal) Insertion loss (without D.U.T. board s loss) : Ω Max..dB/9MHz, Max..4dB/3GHz (Surface-mount terminal) Min. 6dB/9MHz, Min. 3dB/3GHz (Standard terminal) Isolation Min. db/9mhz, Min. db/3ghz (Surface-mount terminal) Max../9MHz, Max..4/3GHz (Standard terminal) High frequency Max../9MHz, Max../3GHz (Surface-mount terminal) characteristics, Max..dB/9MHz, Max..dB/3GHz (Standard terminal) Insertion loss (without D.U.T. board s loss) : 7Ω Max..dB/9MHz, Max..dB/3GHz (Surface-mount terminal) Min. 6dB/9MHz, Min. db/3ghz (Standard terminal) Isolation Min. db/9mhz, Min. db/3ghz (Surface-mount terminal) Insulation resistance Min. MΩ (at V DC, Measurement at same location as Breakdown section.) Breakdown Between open contacts Vrms for min. (Detection current: ma) Between contact and earth terminal Vrms for min. (Detection current: ma) Between contact and coil, Vrms for min. (Detection current: ma) Electrical Max. 6 C 4 F characteristics Temperature rise (By resistive method, nominal applied to the coil, contact carrying current: ma) Operate time Max. ms (Nominal applied to the coil, excluding contact bounce time) Release time Max. 6 ms (Nominal applied to the coil, excluding contact bounce time) (without diode) Set time and Reset time Max. ms (Nominal applied to the coil, excluding contact bounce time) Shock Functional Min. 96 m/s (Half-wave pulse of sine wave: ms, detection time: μs) Mechanical resistance Destructive Min. 98 m/s (Half-wave pulse of sine wave: 6 ms) characteristics Vibration Functional to Hz at double amplitude of 3 mm (Detection time: μs) resistance Destructive to Hz at double amplitude of mm Operation noise* Standard type Approx. 4dB Silent type (7Ω, terminal type only) Approx. db Single side stable standard type Min. 6 (at 8 cpm) Mechanical life Single side stable silent type Min. 6 (at 8 cpm) Latching type Min. 6 (at 8 cpm) Min. 6 (Standard terminal), Min. 3 (Surface-mount terminal) Expected life (V DC ma resistive load)/min. 3 Ω type (4V DC ma resistive load) Min. 6 (Standard terminal), Min. 3 (Surface-mount terminal) Electrical life (W, at 3GHz, : Ω, V.S.W.R: Max..4) (at cpm) 7Ω type Min. 3 (ma 4V DC resistive load) Min. 3 (W, at 3GHz, : 7Ω, V.S.W.R: Max..4) (at cpm) Ambient temperature: 4 to 7 C 4 F to 8 F Conditions Conditions for operation, transport and storage (Single side stable standard and Latching type) Ambient temperature: 4 to 6 C 4 F to 4 F (Single side stable silent type) Humidity: to 8% R.H. (Not freezing and condensing at low temperature) Unit weight Approx. g.7 oz * Measured the operation noise of the relay alone (with diodes at both ends of the coil) cm away from top side, by the A-weighted, FAST method while applying the rated. 4

5 REFEREE DATA.-() High frequency characteristics (: Ω, Standard terminal) Sample: ARS44H; Measuring method: Measured with Agilent Technologies network analyzer (E8363B). *For details, see 8. Measuring method under TES. characteristics.. Insertion loss characteristics (without D.U.T. board s loss) Insertion loss, db. Isolation characteristics Isolation, db..3mhz 9MHz 3GHz..3MHz 9MHz 3GHz.3MHz 9MHz 3GHz.-() High frequency characteristics (: 7Ω, Standard terminal) Sample: ARS4H; Measuring method: Measured with Agilent Technologies network analyzer (E8363B). *For details, see 8. Measuring method under TES. characteristics Insertion loss characteristics Isolation characteristics (without D.U.T. board s loss). Insertion loss, db. Isolation, db.3mhz 9MHz 3GHz..3MHz 9MHz 3GHz.3MHz 9MHz 3GHz.-(3) High frequency characteristics (: Ω, Surface-mount terminal) Sample: ARS4A4H; Measuring method: Measured with Agilent Technologies network analyzer (E8363B). *For details, see 8. Measuring method under TES. characteristics Insertion loss characteristics Isolation characteristics (without D.U.T. board s loss).. Insertion loss, db. Isolation, db.3mhz 9MHz 3GHz..3MHz 9MHz 3GHz.3MHz 9MHz 3GHz.-(4) High frequency characteristics (: 7Ω, Surface-mount terminal) Sample: ARSA4H; Measuring method: Measured with Agilent Technologies network analyzer (E8363B). *For details, see 8. Measuring method under TES. characteristics Insertion loss characteristics Isolation characteristics (without D.U.T. board s loss).. Insertion loss, db. Isolation, db..3mhz 9MHz 3GHz..3MHz 9MHz 3GHz.3MHz 9MHz 3GHz

6 .-() Operation noise distribution Sample: ARS34H (single side stable silent type), pcs. Coil : rated applied (with diode) Equipment setting: A weighted sound pressure level, FAST. Background noise: approx. db Method of measurement: See figure below. Microphone Top of relay mm.8inch Quantity, n When operated Quantity, n When released Acoustic absorption mat Relay 4 Noise level, db 4 Noise level, db.-() Operation noise distribution Sample: ARS4H (single side stable standard type), pcs. Coil : rated applied (with diode) Equipment setting: A weighted sound pressure level, FAST. Background noise: approx. db Method of measurement: See figure below. Microphone Top of relay mm.8inch Quantity, n When operated Quantity, n When released Acoustic absorption mat Relay 4 Noise level, db 4 Noise level, db.-(3) Operation noise distribution Sample: ARS4H (latching type), pcs. Coil : rated applied (with diode) Equipment setting: A weighted sound pressure level, FAST. Background noise: approx. db Method of measurement: See figure below. When set and reset Microphone Top of relay mm.8inch Quantity, n Acoustic absorption mat Relay 4 Noise level, db DIMENSIONS (mm inch) <Standard terminal>. Ω type CAD Data The part numbers depend on the type and. The CAD data of the products with a CAD Data mark can be downloaded from: External dimensions coil latching only Stand off (Contact terminal) pattern (Bottom view) 8-. dia dia coil latching only Tolerance: ±. ± (.6) (.4) Tolerance: ±.3 ±. 6

7 . 7Ω type CAD Data The part numbers depend on the type and External dimensions coil latching only Stand off (Contact terminal) pattern (Bottom view) 3-.9 dia dia dia. Min dia. Min coil latching only.8.7 R.4 R.6 Tolerance: ±. ± (.4) (.) Tolerance: ±.3 ±. Schematic (Bottom view). Standard contact type. Reversed contact type coil latching type 4 coil latching type COM COM <Surface-mount terminal>. : Ω type ) E layout External dimensions Schematic (Top view) <Standard contact type> The part numbers depend on the type and COM <Reversed contact type> COM coil latching type coil latching type coil latching type coil latching type Tolerance: ±.3 ±. 7

8 ) Y layout External dimensions Schematic (Top view).6 <Standard contact type> The part numbers depend on the type and COM <Reversed contact type> COM coil latching type COM - coil latching type COM - -coil latching type COM -coil latching type COM Tolerance: ±.3 ±.. : 7Ω type ) E layout External dimensions Schematic (Top view) <Standard contact type> The part numbers depend on the type and COM <Reversed contact type> COM coil latching type coil latching type coil latching type coil latching type Tolerance: ±.3 ±. ) Y layout External dimensions Schematic (Top view).6 <Standard contact type> The part numbers depend on the type and COM <Reversed contact type> COM coil latching type COM - coil latching type COM - -coil latching type COM -coil latching type COM Tolerance: ±.3 ±. 8

9 TES. Coil operating power Pure DC current should be applied to the coil. The wave form should be rectangular. If it includes ripple, the ripple factor should be less than %. However, check it with the actual circuit since the characteristics may be slightly different. The nominal operating should be applied to the coil for more than ms to set/reset the latching type relay.. Coil connection When connecting coils, refer to the wiring diagram to prevent mis-operation or malfunction. 3. External magnetic field Since RS relays are highly sensitive polarized relays, their characteristics will be affected by a strong external magnetic field. Avoid using the relay under that condition. 4. Cleaning For automatic cleaning, the boiling method is recommended. Avoid ultrasonic cleaning which subjects the relays to high frequency vibrations, which may cause the contacts to stick. It is recommended that alcoholic solvents be used.. Conditions for operation, transport and storage conditions ) Temperature Single side stable standard and latching type: 4 to 7 C 4 to 8 F Single side stable silent type: 4 to 6 C 4 to 4 F ) Humidity: to 8% RH (Avoid freezing and condensation.) The humidity range varies with the temperature. Use within the range indicated in the graph below. 3) Atmospheric pressure: 86 to 6 kpa Temperature and humidity range for usage, transport, and storage: Single side stable standard and latching type (Avoid freezing when used at temperatures lower than C 3 F) Tolerance range Humidity, %R.H. (Avoid condensation when used at temperatures higher than C 3 F) Temperature, C F Single side stable silent type (Avoid freezing when used at temperatures lower than C 3 F) Tolerance range Humidity, %R.H. (Avoid condensation when used at temperatures higher than C 3 F) Temperature, C F 4) Condensation Condensation forms when there is a sudden change in temperature under high temperature and high humidity conditions. Condensation will cause deterioration of the relay insulation. ) Freezing Condensation or other moisture may freeze on the relay when the temperature is lower than C 3 F. This causes problems such as sticking of movable parts or operational time lags. 6) Low temperature, low humidity environments The plastic becomes brittle if the relay is exposed to a low temperature, low humidity environment for long periods of time. 7) Storage requirements Since the relay is sensitive to humidity, the surface-mount type is packaged with tightly sealed anti-humidity packaging. However, when storing, please be careful of the following. () Please use promptly once the antihumidity pack is opened. If relays are left as is after unpacking, they will absorb moisture which will result in loss of air tightness as a result of case expansion due to thermal stress when reflow soldering during the mounting process. (within one day, C and 6%R.H or less) () When storing for a log period after opening the anti-humidity pack, storage in anti-humidity packaging with an antihumidity bag to which silica gel has been added, is recommended. *Furthermore, if the relay is solder mounted when it has been subjected to excessive humidity, cracks and leaks can occur. Be sure to mount the relay under the required mounting conditions. 6. Soldering ) Please meet the following conditions if this relay is to be automatically soldered. () Preheating: Max. C 48 F (terminal solder surface) for max. seconds () Soldering: Max. 6± C ±9 F for max. 6 seconds *Relays are influenced by the type of PC board used. Please confirm with the actual you plan to use. *Please avoid reflow soldering. ) Surface-mount terminal In case of automatic soldering, the following conditions should be observed () Position of measuring temperature A: Surface of where relay is mounted. () IR (infrared reflow) soldering method T3 T T t Mounting cautions Rise in relay temperature depends greatly on the component mix on a given and the heating method of the reflow equipment. Therefore, please test beforehand using actual equipment to ensure that the temperature where the relay terminals are soldered and the temperature at the top of the relay case are within the conditions given above. 3) Please meet the following conditions if this relay is to be soldered by hand. () 6 C F for max. seconds () 3 C 66 F for max. 3 seconds The effect on the relay depends on the actual substrate used. Please verify the substrate to be used. (3) Avoid ultrasonic cleaning. Doing so will adversely affect relay characteristics. Please use alcohol-based cleaning solvents when cleaning relays. 7. Tape and reel packing ) Tape dimensions X type Z type ) Dimensions of plastic reel. ±..79 ±. t A T= to 8 C T= C and higher T3= C max. t=6s to s t=within s dia. dia RS relay Relay polarity bar 4.±.3.94±. Tape coming out direction 8.6 (General tolerance: ±. ±.4) ±.8 dia. ±.3.87 dia. ±. 3 dia. ±.8. dia ± 38 dia. ± dia. ± 8 dia. ± dia...79 ±. ±.8 9

10 8. Measuring method ) Ω type Connect connectors and respectively to PORT and PORT. Perform calibration using the 3. mm calibration kit (HP8B). No. Product name Contents Network analyzer Agilent Technologies E8363B Agilent 8-6 SUHNER SUCOFLEX4 PORT PORT Adapter.4mm-3.mm female.9inch-.38inch female Cable 3.mm-3.mm male.38inch-.38inch male After calibration, connect the D.U.T. board and measure. However, connectors other than those for measurement should be connected with a Ω termination resistor. <Standard terminal> R.4 3-R. -. dia dia. -.4 dia. -. dia <Surface-mount terminal and E layout> R.9 3-R dia dia. (Through hole) <Surface-mount terminal and Y layout> for correction Material: Glass PTFE double-sided through hole R-4737 (manufactured by our company) Board thickness: t =.8 mm.3 inch Copper plating: 8 μm Connector (SMA type receptacle) Product name: K88- (Waka Manufacturing Co., Ltd.) Insertion loss compensation The insertion loss of relay itself is given by subtracting the insertion loss of shortcircuit the Com and the (or ). (signal path and two connectors) ) 7Ω type Network analyzer PORT Agilent Technologies E8363B PORT Connect connectors and respectively to PORT and PORT. Perform calibration using the 3. mm calibration kit (HP839B). No. Product name Contents Test port cable 8B Conversion adapter; Ω N type (female) to 7Ω N type (male) Conversion adapter; 7Ω N type (female) to 7Ω F type (male) After calibration, connect the D.U.T. board and measure. However, connectors other than those for measurement should be connected with a 7Ω termination resistor. <Standard terminal> R.4 R dia dia. 3-. dia dia. 3-. dia dia <Surface-mount terminal and E layout> <Surface-mount terminal and Y layout> for correction dia dia. (Through hole) 3-. dia. 3-. dia Material: Glass PTFE double-sided through hole R-4737 (manufactured by our company) Board thickness: t =.8 mm.3 inch Copper plating: 8μm Connector (F type receptacle) Product name: C-36 (Komine Musen Electric Corporation)

11 Insertion loss compensation The insertion loss of relay itself is given by subtracting the insertion loss of shortcircuit the COM and the (or ). (signal path and two connectors) 9. Others ) The switching lifetime is defined under the standard test condition specified in the JIS* C 44 standard (temperature to 3 C 9 to 9 F, humidity to 7%). Check this with the real device as it is affected by coil driving circuit, load type, activation frequency, activation phase, ambient conditions and other factors. Also, be especially careful of loads such as those listed below. When used for AC load-operating and the operating phase is synchronous, rocking and fusing can easily occur due to contact shifting. When high-frequency opening and closing of the relay is performed with a load that causes arcs at the contacts, nitrogen and oxygen in the air is fused by the arc energy and H3 is formed. This can corrode metal materials. Three countermeasures for these are listed here. () Incorporate an arc-extinguishing circuit. () Lower the operating frequency (3) Lower the ambient humidity ) Use the relay within specifications such as coil rating, contact rating and on/ off service life. If used beyond limits, the relay may overheat, generate smoke or catch fire. 3) Be careful not to drop the relay. If accidentally dropped, carefully check its appearance and characteristics before use. 4) Be careful to wire the relay correctly. Otherwise, malfunction, overheat, fire or other trouble may occur. ) If a relay stays on in a circuit for many months or years at a time without being activated, circuit design should be reviewed so that the relay can remain non-excited. A coil that receives current all the time heats, which degrades insulation earlier than expected. A latching type relay is recommended for such circuits. 6) To ensure accurate operation of the latching type amidst surrounding temperature changes and other factors that might affect the set and reset pulse times, we recommend a coil impress set and reset pulse width of at least ms at the rated operation. 7) The latching type relay is shipped in the reset position. But jolts during transport or impacts during installation can change the reset position. It is, therefore, advisable to build a circuit in which the relay can be initialized (set and reset) just after turning on the power. 8) If silicone materials (e.g., silicone rubbers, silicone oils, silicone coating agents, silicone sealers) are used in the vicinity of the relay, the gas emitted from the silicone may adhere to the contacts of the relay during opening and closing and lead to improper contact. If this is the case, use a material other than silicone. For general cautions for use, please refer to the General Application Guidelines.