1SMB5.0AT3G Series, SZ1SMB5.0AT3G Series. 600 Watt Peak Power Zener Transient Voltage Suppressors. Unidirectional

Size: px

Start display at page:

Download "1SMB5.0AT3G Series, SZ1SMB5.0AT3G Series. 600 Watt Peak Power Zener Transient Voltage Suppressors. Unidirectional"

Baldwin Shepherd
5 years ago
Views:

OBSOLETE/EOL DTE June/3/8 PCN/ECN# LFPCN446 REPLCED BY J Series T3G Series, SZT3G Series 6 Watt Peak Power Zener Transient Voltage Suppressors Unidirectional The series is designed to protect voltage

1 OBSOLETE/EOL DTE June/3/8 PCN/ECN# LFPCN446 REPLCED BY J Series T3G Series, SZT3G Series 6 Watt Peak Power Zener Transient Voltage Suppressors Unidirectional The series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping capability, high surge capability, low zener impedance and fast response time. The series is supplied in the Littelfuse exclusive, cost-effective, highly reliable package and is ideally suited for use in communication systems, automotive, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications. Littelfuse.com PLSTIC SURFCE MOUNT ZENER OVERVOLTGE TRNSIENT SUPPRESSORS V 7 V, 6 W PEK POWER CSE 43 PLSTIC Features Working Peak Reverse Voltage Range V to 7 V Standard Zener Breakdown Voltage Range 6.7 V to 99 V Peak Power 6 ms ESD Rating of Class 3 (> 6 kv) per Human Body Model Maximum Clamp Peak Pulse Current Low Leakage < m bove V UL 497B for Isolated Loop Circuit Protection Response Time is Typically < ns SZ Prefix for utomotive and Other pplications Requiring Unique Site and Control Change Requirements; EC Q Qualified and PPP Capable Pb Free Packages are vailable Mechanical Characteristics CSE: Void-free, transfer-molded, thermosetting plastic FINISH: ll external surfaces are corrosion resistant and leads are readily solderable MXIMUM CSE TEMPERTURE FOR SOLDERING PURPOSES: 6 C for Seconds LEDS: Modified L Bend providing more contact area to bond pads POLRITY: Cathode indicated by polarity band MOUNTING POSITION: ny Cathode node MRKING DIGRM YWW xx G G Y WW xx G = ssembly Location = Year = Work Week = Device Code (Refer to page 3) = Pb Free Package (Note: Microdot may be in either location) ORDERING INFORMTION Device Package Shipping xxxt3g (Pb Free),5 / Tape & Reel SZxxxT3G (Pb Free),5 / Tape & Reel DEVICE MRKING INFORMTION See specific marking information in the device marking column of the Electrical Characteristics table on page 3 of this data sheet. T3/D

2 T3G Series, SZT3G Series MXIMUM RTINGS Rating Symbol Value Unit Peak Power Dissipation (Note TL = 5 C, Pulse Width = ms PPK 6 W DC Power TL = 75 C Measured Zero Lead Length (Note ) Derate bove 75 C Thermal Resistance from Junction to Lead PD W mw/ C C/W W mw/ C C/W RqJL DC Power Dissipation (Note T = 5 C Derate bove 5 C Thermal Resistance from Junction to mbient PD RqJ Forward Surge Current (Note T = 5 C IFSM TJ, Tstg 65 to +5 C Operating and Storage Temperature Range Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.. X ms, non repetitive.. in square copper pad, FR 4 board. 3. FR 4 board, using minimum recommended footprint, as shown in 43 case outline dimensions spec. 4. / sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum. ELECTRICL CHRCTERISTICS (T = 5 C unless otherwise noted, VF = 3.5 V IF (Note 5) = 3 ) Symbol Parameter IPP Maximum Reverse Peak Pulse Current VC Clamping IPP VRWM IR VBR I IF VC VBR VRWM Working Peak Reverse Voltage Maximum Reverse Leakage VRWM IR VF IT V Breakdown IT IT Test Current IF Forward Current VF Forward IF IPP Uni Directional TVS 5. / sine wave (or equivalent square wave), PW = 8.3 ms, non repetitive duty cycle. T3/D

3 T3G Series, SZT3G Series ELECTRICL CHRCTERISTICS Device* T3G 6.T3G 6.5T3G 7.T3G 7.5T3G 8.T3G 8.5T3G 9.T3G T3G T3G T3G 3T3G 4T3G 5T3G 6T3G 7T3G 8T3G T3G T3G 4T3G 6T3G 8T3G 3T3G 33T3G 36T3G 4T3G 43T3G 45T3G 48T3G 5T3G 54T3G 58T3G 6T3G 64T3G 7T3G 75T3G 85T3G 9T3G T3G T3G T3G 3T3G 5T3G 6T3G 7T3G Device Marking KE KG KK KM KP KR KT KV KX KZ LE LG LK LM LP LR LT LV LX LZ ME MG MK MM MP MR MT MV MX MZ NE NG NK NM NP NR NV NX NZ PE PG PK PM PP PR Breakdown Voltage V I PP (Note 8) V RWM (Note 6) I V RWM V BR (Note 7) I T V C I PP C typ (Note 9) V Min Nom Max m V pf transient suppressor is normally selected according to the working peak reverse voltage (V RWM ), which should be equal to or greater than the DC or continuous peak operating voltage level. 7. V BR measured at pulse test current I T at an ambient temperature of 5 C. 8. Surge current waveform per Figure and derate per Figure 4 of the General Data 6 W at the beginning of this group. 9. Bias Voltage = V, F = MHz, T J = 5 C Please see CT3 to 78CT3 for Bidirectional devices. * Include SZ-prefix devices where applicable. 3 T3/D

4 T3G Series, SZT3G Series NONREPETITIVE PULSE WVEFORM SHOWN IN FIGURE PULSE WIDTH (tp) IS DEFINED S THT POINT WHERE THE PEK CURRENT DECYS TO 5% OF IPP. tr ms PEK VLUE - IPP VLUE (%) PPK, PEK POWER (kw) I HLF VLUE - PP 5 tp.. ms ms ms ms ms ms tp, PULSE WIDTH 4 5 t, TIME (ms) Figure. Pulse Rating Curve Figure. Pulse Waveform, 6 TJ = 5 C f = MHz 4 T3G C, CPCITNCE (pf) PEK PULSE DERTING IN % OF PEK POWER OR T = 5 C T3G 48T3G 7T3G T, MBIENT TEMPERTURE ( C) BIS VOLTGE (VOLTS) Figure 4. Typical Junction Capacitance vs. Bias Voltage Figure 3. Pulse Derating Curve Zin LOD Vin VL Figure 5. Typical Protection Circuit 4 T3/D

5 T3G Series, SZT3G Series PPLICTION NOTES Response Time minimum lead lengths and placing the suppressor device as close as possible to the equipment or components to be protected will minimize this overshoot. Some input impedance represented by Zin is essential to prevent overstress of the protection device. This impedance should be as high as possible, without restricting the circuit operation. In most applications, the transient suppressor device is placed in parallel with the equipment or component to be protected. In this situation, there is a time delay associated with the capacitance of the device and an overshoot condition associated with the inductance of the device and the inductance of the connection method. The capacitive effect is of minor importance in the parallel protection scheme because it only produces a time delay in the transition from the operating voltage to the clamp voltage as shown in Figure 6. The inductive effects in the device are due to actual turn-on time (time required for the device to go from zero current to full current) and lead inductance. This inductive effect produces an overshoot in the voltage across the equipment or component being protected as shown in Figure 7. Minimizing this overshoot is very important in the application, since the main purpose for adding a transient suppressor is to clamp voltage spikes. The series have a very good response time, typically < ns and negligible inductance. However, external inductive effects could produce unacceptable overshoot. Proper circuit layout, V Duty Cycle Derating The data of Figure applies for non-repetitive conditions and at a lead temperature of 5 C. If the duty cycle increases, the peak power must be reduced as indicated by the curves of Figure 8. verage power must be derated as the lead or ambient temperature rises above 5 C. The average power derating curve normally given on data sheets may be normalized and used for this purpose. t first glance the derating curves of Figure 8 appear to be in error as the ms pulse has a higher derating factor than the ms pulse. However, when the derating factor for a given pulse of Figure 8 is multiplied by the peak power value of Figure for the same pulse, the results follow the expected trend. V Vin (TRNSIENT) OVERSHOOT DUE TO INDUCTIVE EFFECTS Vin (TRNSIENT) VL VL Vin td td = TIME DELY DUE TO CPCITIVE EFFECT t t Figure 6. Figure 7..7 DERTING FCTOR.5.3. PULSE WIDTH ms..7.5 ms.3 ms.. ms D, DUTY CYCLE (%) 5 Figure 8. Typical Derating Factor for Duty Cycle 5 T3/D

6 T3G Series, SZT3G Series UL RECOGNITION including Strike Voltage Breakdown test, Endurance Conditioning, Temperature test, Dielectric Voltage-Withstand test, Discharge test and several more. Whereas, some competitors have only passed a flammability test for the package material, we have been recognized for much more to be included in their Protector category. The entire series has Underwriters Laboratory Recognition for the classification of protectors (QVGQ) under the UL standard for safety 497B and File #E866. Many competitors only have one or two devices recognized or have recognition in a non-protective category. Some competitors have no recognition at all. With the UL497B recognition, our parts successfully passed several tests 6 T3/D

7 T3G Series, SZT3G Series PCKGE DIMENSIONS CSE 43 3 ISSUE H HE NOTES:. DIMENSIONING ND TOLERNCING PER NSI Y4.5M, 98.. CONTROLLING DIMENSION: INCH. 3. D DIMENSION SHLL BE MESURED WITHIN DIMENSION P. E b DIM b c D E HE L L D POLRITY INDICTOR OPTIONL S NEEDED MIN MILLIMETERS NOM MX REF MIN INCHES NOM REF MX L L c SOLDERING FOOTPRINT SCLE 8: mm Ǔ ǒinches Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. Littelfuse.com 7 T3/D

P6SMB6.8AT3G Series, SZP6SMB6.8AT3G Series. 600 Watt Peak Power Zener Transient Voltage Suppressors. Unidirectional*

P6SMB6.8AT3G Series, SZP6SMB6.8AT3G Series. 600 Watt Peak Power Zener Transient Voltage Suppressors. Unidirectional* P66.8AT3G Series, SZP66.8AT3G Series 600 Watt Peak Power Zener Transient Voltage Suppressors Unidirectional* The series is designed to protect voltage sensitive components from high voltage, high energy