Power Metal Film Resistors

Transcription

1 PR/2/3 Power Metal Film Resistors FEATURES High power in small packages ( W/27 size to 3 W/67 size) Different lead materials for different applications Defined interruption behaviour Lead (Pb)-free solder contacts Pure tin plating provides compatibility with lead (Pb)-free and lead containing soldering processes Compatible with Restriction of the use of Hazardous Substances (RoHS) directive 22/95/EC (issue 24) APPLICATIONS All general purpose power applications A homogeneous film of metal alloy is deposited on a high grade ceramic body. After a helical groove has been cut in the resistive layer, tinned connecting wires of electrolytic copper or copper-clad iron are welded to the end-caps. The resistors are coated with a red, nonflammable lacquer which provides electrical, mechanical and climatic protection. This coating is not resistant to aggressive fluxes. The encapsulation is resistant to all cleaning solvents in accordance with MIL-STD-22E, method 25, and IEC TECHNICAL SPECIFICATIONS DESCRIPTION PR VALUE PR2 PR3 Cu-lead FeCu-lead Cu-lead FeCu-lead Resistance range (2).22 Ω tomω.33 Ω tomω Ω tomω.68 Ω tomω Ω to MΩ Resistance tolerance and series ± % (E24, E96 series); ± 5 % (E24 series) () Maximum dissipation at T amb =7 C: R <Ω.6 W.2 W.6 W Ω R W 2W.3W 3W 2.5W Thermal resistance (R th ) 35 K/W 75 K/W 5 K/W 6 K/W 75 K/W Temperature coefficient ± 25 x -6 /K Maximum permissible voltage (DC or RMS) 35 V 5 V 75 V Basic specifications IEC 65- and 65-4 Climatic category (IEC 668) 55/55/56 Stability after: load ΔR max.: ± (5 % R +. Ω) climatic tests ΔR max.: ± (3 % R +. Ω) soldering ΔR max.: ± ( % R +.5 Ω) Notes: () % tolerance is available for R n -range from R upwards. (2) Ohmic values (other than resistance range) are available on request. R value is measured with probe distance of 24 ± mm using 4- terminal method. For technical questions, contact: ff3dresistors@vishay.com Document Number: Revision: 6-Dec-7

2 Power Metal Film Resistors PR/2/3 2NC INFORMATION The resistors have a 2-digit numeric code starting with 23 For 5 % tolerance: The next 7 digits indicate the resistor type and packing The remaining 3 digits indicate the resistance value: The first 2 digits indicate the resistance value The last digit indicates the resistance decade For % tolerance: The next 6 digits indicate the resistor type and packing The remaining 4 digits indicate the resistance value: The first 3 digits indicate the resistance value The last digit indicates the resistance decade Last Digit of 2NC Indicating Resistance Decade RESISTANCE DECADE LAST DIGIT.22 to.9 Ω 7 to9.76ω 8 to 97.6 Ω 9 to 976 Ω to9.76kω 2 to 97.6 kω 3 to 976 kω 4 MΩ 5 2NC Example The 2NC for resistor type PR2 with Cu leads and a value of 75 Ω with 5 % tolerance, supplied on a bandolier of units in ammopack, is: NC - resistor type and packaging (). Preferred types in bold TYPE LEAD Ø mm TOL (%) RADIAL TAPED ORDERING CODE (BANDOLIER) AMMOPACK 4 units 3 units 5 units units 5 units 5 units PR Cu PR2 Cu FeCu PR3 Cu FeCu Notes: () Other packaging versions are available on request. REEL STRAIGHT LEADS 52 mm 52 mm 63 mm 52 mm 2NC - resistor type and packaging. Preferred types in bold TYPE LEAD Ø mm TOL (%) ORDERING CODE (LOOSE IN BOX) DOUBLE KINK PITCH = 7.8 mm PITCH = 25.4 mm PITCH (2) (3) (4) units 5 units units 5 units PR Cu FeCu (2) PR2 Cu FeCu FeCu (3) PR3 Cu FeCu FeCu (4) Notes: (2) PR pitch 2.5 mm. (3) PR2 pitch 5. mm. (4) PR3 pitch 2. mm, with reversed kinking direction as opposed to the drawing for the type with double kink figure. Document Number: For technical questions, contact: ff3dresistors@vishay.com Revision: 6-Dec-7 7

3 PR/2/3 Power Metal Film Resistors PART NUMBER PART NUMBER: PR22JA P R 2 2 J A MODEL/SIZE PR PR2 PR3 SPECIAL CHARACTER = neutral Z = value overflow (Special) WIRE TYPES = Cu.6 2 = Cu.8 3 = FeCu.6 4 = FeCu.8 TCR/MATERIAL VALUE TOLERANCE PACKAGING () SPECIAL = standard 3 digit value digit multiplier Multiplier: 7 = * -3 F = ± % J = ± 5 % 8 = * -2 9 = * - = * = * 2 = * 2 3 = * 3 4 = * 4 5 = * 5 PRODUCT DESCRIPTION: PR2 5 % A K PR2 5 % A K MODEL/SIZE TOLERANCE PACKAGING () RESISTANCE VALUE PR PR2 PR3 ± % ± 5 % Note: () Please refer to table PACKAGING for details. The PART NUMBER is shown to facilitate the introduction of a unified part numbering system for ordering products. N4 N3 A5 A AC R5 L DC K B PC K = kω 4K75 = 4.75 kω N4 N3 A5 A AC R5 L DC K B PC The 2 digits are used for all special parts. = standard PACKAGING CODE PIECES DESCRIPTION MODEL/SIZE N4 4 Bandolier in ammopack radial taped PR N3 3 Bandolier in ammopack radial taped PR2 A5 5 Bandolier in ammopack straight leads 52 mm PR A Bandolier in ammopack straight leads 52 mm PR, PR2 AC 5 Bandolier in ammopack straight leads 63 mm PR3 R5 5 Bandolier on reel straight leads 52 mm PR, PR2 L Loose in box with Double Kink, pitch 7.8 mm PR, PR2 DC 5 Loose in box with Double Kink, pitch 25.4 mm PR3 K Loose in box with Double Kink, pitch 2.5 mm PR B Loose in box with Double Kink, pitch 5. mm PR2 PC 5 Loose in box with Double Kink, pitch 2. mm PR3 For technical questions, contact: ff3dresistors@vishay.com Document Number: Revision: 6-Dec-7

4 Power Metal Film Resistors PR/2/3 DIMENSIONS L Ø d L 2 Ø D Type with straight leads DIMENSIONS - straight lead type and relevant physical dimensions; see straight leads outline TYPE Ø D MAX. L MAX. L 2 MAX. Cu Ø d FeCu PR ±.5 - PR ±.5.58 ±.5 PR ±.5.58 ±.5 P ±.5 Ø D P ±.5 L L P 2 ± 3 Ø d b S Ø B b ±.7 2 Type with double kink Dimensions in millimeters DIMENSIONS - double kink lead type and relevant physical dimensions; see double kinked outline TYPE PR LEAD STYLE double kink large pitch double kink small pitch Cu Ø d FeCu.58 ±.5.58 ± ±.5 b. +.25/ /-.2 b / /-.2 Ø D MAX. 2.5 P P 2 S MAX. Ø B PR2 double kink large pitch double kink small pitch.78 ±.5.58 ± ± / / / / PR3 double kink large pitch double kink small pitch.78 ±.5.58 ± ± / / / / Document Number: For technical questions, contact: ff3dresistors@vishay.com Revision: 6-Dec-7 9

5 PR/2/3 Power Metal Film Resistors MASS PER UNITS TYPE MASS (g) PR Cu.6 mm 2.2 PR FeCu.6 mm 2.7 PR2 Cu.8 mm 5.4 PR2 FeCu.6 mm 4.6 PR2 FeCu.8 mm 49.6 PR3 Cu.8 mm 9.2 PR3 FeCu.6 mm 7.9 PR3 FeCu.8 mm 8.5 MARKING The nominal resistance and tolerance are marked on the resistor using four colored bands in accordance with IEC publication 662, Color codes for fixed resistors. OUTLINES The length of the body (L ) is measured by inserting the leads into holes of two identical gauge plates and moving these plates parallel to each other until the resistor body is clamped without deformation ( IEC publication 6294 ). MOUNTING The resistors are suitable for processing on automatic insertion equipment and cutting and bending machines. MOUNTING PITCH TYPE LEAD STYLE PITCH mm e straight leads 2.5 () 5 () PR radial taped double kink large pitch double kink small pitch straight leads 5. () 6 () PR2 radial taped double kink large pitch double kink small pitch 5. 6 straight leads 23. () 9 () PR3 double kink large pitch 25.4 double kink small pitch 2. 8 Note: () Recommended minimum value. FUNCTIONAL DESCRIPTION PRODUCT CHARACTERIZATION Standard values of nominal resistance are taken from the E96/E24 series for resistors with a tolerance of ± % or ± 5 %. The values of the E96/E24 series are in accordance with IEC publication 663. FUNCTIONAL PERFORMANCE. P Tamb = 4 C 7 C C 25 C 55 C 3. P Tamb = 4 C 7 C C 25 C 55 C h h h < kω < 3 kω > 3 kω Tm ( C) 25 C h h h < kω 5 kω > 5 kω Tm ( C) 25 C % R PR Drift nomogram 2. Tamb = 4 C 7 C P.5 C 25 C. 55 C.5 h h h % R PR2 Drift nomogram < kω < 39 kω > 39 kω 22 C Tm ( C) % R PR3 Drift nomogram LIMITING VALUES TYPE LEAD MATERIAL RANGE LIMITING VOLTAGE () (V) LIMITING POWER PR Cu R <Ω 35.6 Ω R. Cu R <Ω.2 PR2 Ω R 5 2. FeCu Ω R.3 Cu R <Ω.6 PR3 Ω R FeCu Ω R 2.5 Note: () The maximum voltage that may be continuously applied to the resistor element, see IEC publication 65-. The maximum permissible hot-spot temperature is 25 C for PR, 22 C for PR2 and 25 C for PR3. For technical questions, contact: ff3dresistors@vishay.com Document Number: Revision: 6-Dec-7

6 Power Metal Film Resistors PR/2/3 The power that the resistor can dissipate depends on the operating temperature. P max (% P rate d ) T amb ( C) Maximum dissipation (P max ) in percentage of rated power as a function of the ambient temperature (T amb ) Derating 3 P ma x (W ) 2 t p / t i = t i PR Pulse on a regular basis; maximum permissible peak pulse power ( P max ) as a function of pulse duration (t i ) 2 V ma x (V) Pulse Loading Capabilities t i PR Pulse on a regular basis; maximum permissible peak pulse voltage ( V max ) as a function of pulse duration (t i ) Document Number: For technical questions, contact: ff3dresistors@vishay.com Revision: 6-Dec-7

7 PR/2/3 Power Metal Film Resistors 3 P max 2 tp/ t i = t i PR2 Pulse on a regular basis; maximum permissible peak pulse power ( P max ) as a function of pulse duration (t i ) 7 V max (V) t i PR2 Pulse on a regular basis; maximum permissible peak pulse voltage ( V max ) as a function of pulse duration (t i ) 4 P max 3 2 tp/ t i = Pulse Loading Capabilities t i PR3 Pulse on a regular basis; maximum permissible peak pulse power ( P max ) as a function of pulse duration (t i ) For technical questions, contact: ff3dresistors@vishay.com Document Number: Revision: 6-Dec-7

8 Power Metal Film Resistors PR/2/3 24 V max (V) Pulse Loading Capabilities t i PR3 Pulse on a regular basis; maximum permissible peak pulse voltage ( V max ) as a function of pulse duration (t i ) 2 t 2 t P overload PR Time to interruption as a function of overload power for range: R 22 R n < R This graph is based on measured data under constant voltage conditions; the data may deviate according to the applications. 2 t P overload PR Time to interruption as a function of overload power for range: 6 R R n 56 R This graph is based on measured data under constant voltage conditions; the data may deviate according to the applications. 2 t P overload PR Time to interruption as a function of overload power for range: R R n 5 R This graph is based on measured data under constant voltage conditions; the data may deviate according to the applications. Interruption Characteristic P overload PR2 Time to interruption as a function of overload power for range:.33 R R n < 5 R This graph is based on measured data under constant voltage conditions; the data may deviate according to the applications. Document Number: For technical questions, contact: ff3dresistors@vishay.com Revision: 6-Dec-7 3

9 PR/2/3 Power Metal Film Resistors 2 t 2 t P overload PR2 Time to interruption as a function of overload power for range: 5 R R n < 68 R This graph is based on measured data under constant voltage conditions; the data may deviate according to the applications. 2 t P overload PR2 Time to interruption as a function of overload power for range: 68 R R n 56 R This graph is based on measured data under constant voltage conditions; the data may deviate according to the applications. Interruption Characteristics P overload PR3 Time to interruption as a function of overload power for range:.68 R R n 56 R This graph is based on measured data under constant voltage conditions; the data may deviate according to the applications Ø.6 mm Cu-leads PR Hot-spot temperature rise (ΔT) as a function of dissipated power. 2 T mm 2 mm 25 mm Ø.6 mm Cu-leads Minimum distance from resistor body to PCB = mm PR Temperature rise (ΔT) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. Application Information Ø.6 mm FeCu-leads PR Hot-spot temperature rise (ΔT) as a function of dissipated power. For technical questions, contact: ff3dresistors@vishay.com Document Number: Revision: 6-Dec-7

10 Power Metal Film Resistors PR/2/3 T mm 2 mm 25 mm Ø.6 mm FeCu-leads Minimum distance from resistor body to PCB = mm PR Temperature rise (ΔT) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting Ø.8 mm Cu-leads PR2 Hot-spot temperature rise (ΔT) as a function of dissipated power mm 2 mm 25 mm Ø.8 mm Cu-leads Minimum distance from resistor body to PCB = mm PR2 Temperature rise (ΔT) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting Ø.6 mm FeCu-leads PR2 Hot-spot temperature rise (ΔT) as a function of dissipated power. 24 T mm 2 mm 25 mm Ø.6 mm FeCu-leads Minimum distance from resistor body to PCB = mm PR2 Temperature rise (ΔT) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. 2 Ø.8 mm FeCu-leads P (W ) PR2 Hot-spot temperature rise (ΔT) as a function of dissipated power. 2 Application Information Document Number: For technical questions, contact: ff3dresistors@vishay.com Revision: 6-Dec-7 5

11 PR/2/3 Power Metal Film Resistors T mm 2 mm 25 mm Ø.8 mm FeCu-leads Minimum distance from resistor body to PCB = mm PR2 Temperature rise (ΔT) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. 2 3 Ø.8 mm Cu-leads PR3 Hot-spot temperature rise (ΔT) as a function of dissipated power. 8 5 mm mm 25 mm Ø.8 mm Cu-leads Minimum distance from resistor body to PCB = mm PR3 Temperature rise (ΔT) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. 2 3 Ø.6 mm FeCu-leads PR3 Hot-spot temperature rise (ΔT) as a function of dissipated power mm 5 mm 2 mm 25 mm 24 T Ø.6 mm FeCu-leads Minimum distance from resistor body to PCB = mm PR3 Temperature rise (ΔT) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. Ø.8 mm FeCu-leads 2 P (W ) PR3 Hot-spot temperature rise (ΔT) as a function of dissipated power. 3 Application Information For technical questions, contact: ff3dresistors@vishay.com Document Number: Revision: 6-Dec-7

12 Power Metal Film Resistors PR/2/3 T mm 2 mm Ø.8 mm FeCu-leads Minimum distance from resistor body to PCB = mm PR3 Temperature rise (ΔT) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. 2 Z R Rn = Ω Rn = 24 Ω Rn = 2 kω - Rn = kω -2-2 PR Impedance as a function of applied frequency f (MHz) 3 2 ϕ(deg ) 8 Rn = Ω 4 Rn = 24 Ω - 4 Rn = 2 kω Rn = kω 2 f (MHz ) 3 PR Phase angle as a function of applied frequency Application Information Document Number: For technical questions, contact: ff3dresistors@vishay.com Revision: 6-Dec-7 7

13 PR/2/3 Power Metal Film Resistors 2 Z R Rn =.2 Ω Rn = Ω Rn = 22 kω - Rn = 24 kω -2-2 f (MHz) 3 PR2 Impedance as a function of applied frequency 2 ϕ(deg) 8 Rn =.2 Ω Rn = Ω 4-4 Rn = 22 k Ω - 8 = 24 k Ω Rn f (MHz) 3 PR2 Phase angle as a function of applied frequency 2 Z R Rn =.5 Ω Rn = 8 Ω Rn =.3 k Ω - Rn = 2 k Ω -2 Application Information Rn = k Ω 2 f (MHz) PR3 Impedance as a function of applied frequency 3 For technical questions, contact: ff3dresistors@vishay.com Document Number: Revision: 6-Dec-7

14 Power Metal Film Resistors PR/2/3 9 ϕ(deg) Rn =.5 Ω Rn = 8 Ω Rn =.3 k Ω Rn = 2 k Ω R n = k Ω f (MHz ) 3 PR3 Phase angle as a function of applied frequency Application Information TESTS AND REQUIREMENTS Essentially all tests are carried out in accordance with the schedule of IEC publication 65-, category LCT/UCT/56 (rated temperature range: Lower Category Temperature, Upper Category Temperature; damp heat, long term, 56 days). The testing also covers the requirements specified by EIA and EIAJ. The tests are carried out in accordance with IEC publication 668-2, Recommended basic climatic and mechanical robustness testing procedure for electronic components and under standard atmospheric conditions according to IEC 668-, subclause 5.3. In the Test Procedures and Requirements table, tests and requirements are listed with reference to the relevant clauses of IEC publications 65- and ; a short description of the test procedure is also given. In some instances deviations from the IEC recommendations were necessary for our method of specifying. All soldering tests are performed with mildly activated flux. TEST PROCEDURES AND REQUIREMENTS IEC 65- CLAUSE IEC TEST METHOD TEST PROCEDURE REQUIREMENTS TESTS IN ACCORDANCE WITH THE SCHEDULE OF IEC PUBLICATION visual examination no holes; clean surface; no damage dimensions (outline) gauge see Straight & Kinked Dimensions tables applied voltage (+ /- %): R <Ω:. V Ω R < Ω:.3V 4.5 resistance Ω R <kω: V (refer note on first page for measuring distance) kω R <kω: 3V R - R nom :max. ± 5 % kω R < kω: V kω R <MΩ: 25V R = MΩ: 5V (Tb) resistance to soldering heat thermal shock: 3 s; 35 C; 3 mm from body ΔR max.: ± ( % R +.5 Ω) (Xa) component solvent resistance isopropyl alcohol or H 2 O followed by brushing in accordance with MIL 22 F no visual damage (Ta) solderability 2 seconds; 235 C good tinning; no damage Document Number: For technical questions, contact: ff3dresistors@vishay.com Revision: 6-Dec-7 9

15 PR/2/3 Power Metal Film Resistors TEST PROCEDURES AND REQUIREMENTS IEC 65- CLAUSE IEC TEST METHOD 4.7 voltage proof on insulation (U) robustness of terminations: maximum voltage 5 V RMS during minute; metal block method no breakdown or flashover (Ua) tensile all samples load N; seconds number of failures: < x (Ub) bending half number of samples load 5 N; 4 x 9 number of failures: < x (Uc) torsion other half of samples 3 x 36 in opposite directions no damage ΔR max.: ± (.5 % R +.5Ω) (Eb) bump 3 x 5 bumps in three directions; 4 g no damage ΔR max.: ± (.5 % R +.5 Ω) (Fc) vibration (Na) rapid change of temperature 4.23 climatic sequence: (Db) (Db) (Ca) damp heat (accelerated) st cycle damp heat (accelerated) remaining cycles damp heat (steady state) (IEC) frequency to 5 Hz; displacement.5 mm or acceleration g; three directions; total 6 hours (3 x 2 hours) 3 minutes at LCT and 3 minutes at UCT; 5 cycles 6 days; 55 C; 95 to 98 % RH 56 days; 4 C; 9 to 95% RH; loaded with. P n (IEC steps: 4 to V) endurance (at 7 C) hours; loaded with P n or V max ;.5 hours ON and.5 hours OFF at 2/LCT/2 C and 2/UCT/2 C temperature coefficient (TC x -6 /K) OTHER TESTS IN ACCORDANCE WITH IEC 65 CLAUSES AND IEC 668 TEST METHOD (Tb) solderability (after ageing) insulation resistance see 2 nd amendment to IEC 65-, Jan. 87 TEST PROCEDURE REQUIREMENTS pulse load 8 hours steam or 6 hours 55 C; leads immersed 6 mm for 2 ±.5 second in a solder bath at 235 ± 5 C maximum voltage (DC) after minute; metal block method no damage ΔR max.: ± (.5 % R +.5 Ω) no visual damage PR: ΔR max.: ± ( % R +.5 Ω) PR2: ΔR max.: ± ( % R +.5 Ω) PR3: ΔR max.: ± (2 % R +.5 Ω) R ins min.: 3 MΩ ΔR max.: ± (3 % R +. Ω) R ins min.: MΩ ΔR max.: ± (3 % R +. Ω) ΔR max.: ± (5 % R +. Ω) ± 25 good tinning ( 95 % covered); no damage R ins min.: 4 MΩ see Pulse Load Capabilities graphs For technical questions, contact: ff3dresistors@vishay.com Document Number: Revision: 6-Dec-7

16 Notice Legal Disclaimer Notice Vishay Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale. Document Number: 9 Revision: 8-Apr-5