PR01/02/03 Vishay BCcomponents Power Metal Film Resistors FEATURES • High power in small packages • Different lead materials for different applications • Defined interruption behaviour. 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-202E, method 215”, and “IEC 60068-2-45”. TECHNICAL SPECIFICATIONS VALUE DESCRIPTION PR02 PR03 PR01 Cu-lead FeCu-lead Cu-lead FeCu-lead (3) Resistance range 0.22 Ω to 1 MΩ 0.33 Ω to 1 MΩ 1 Ω to 1 MΩ 0.68 Ω to 1 MΩ 1 Ω to 1 MΩ Resistance tolerance and series ± 1 % (E24, E96 series); ± 5 % (E24 series); see notes 1 and 2 Maximum dissipation at T = 70 °C: amb R < 1 Ω 0.6 W 1.2 W − 1.6 W − 1 Ω ≤ R 1 W 2 W 1.3 W 3 W 2.5 W Thermal resistance (R ) 135 K/W 75 K/W 115 K/W 60 K/W 75 K/W th −6 Temperature coefŢcient ≤± 250 × 10 /K Maximum permissible voltage 350 V 500 V 750 V (DC or RMS) Basic speciŢcations IEC 60115-1 and 60115-4 Climatic category (IEC 60068) 55/155/56 Stability after: load ∆R/R max.: ± 5 % + 0.1 Ω climatic tests ∆R/R max.: ± 3 % + 0.1 Ω soldering ∆R/R max.: ± 1 % + 0.05 Ω Notes 1. 1 % tolerance is available for R -range from 1R upwards. n 2. 2 % tolerance is available on request for R -range from 1R upwards. n 3. Ohmic values (other than resistance range) are available on request. Document Number: 28729 For technical questions contact: ff3dresistors@vishay.com www.vishay.com Revision: 24-Feb-04 1 PR01/02/03 Vishay BCcomponents Power Metal Film Resistors (1) 12NC ORDERING CODE - indicating resistor type and packaging . Preferred types in bold ORDERING CODE 23.. ... ..... (BANDOLIER) AMMOPACK REEL LEAD ∅∅∅∅ TOL STRAIGHT LEADS TYPE RADIAL TAPED ( ( ( (mm) (%) 52 mm 52 mm 63 mm 52 mm 4000 3000 5000 1000 500 5000 units units units units units units PR01 Cu 0.6 1 −− 22 196 1.... 06 191 2.... − 06 191 5.... 5 06 197 03... − 22 193 14... 06 197 53... − 06 197 23... PR02 Cu 0.8 1 −− − 22 197 1.... − 06 192 5.... 5 − 06 198 03... − 06 198 53... − 06 198 23... FeCu 0.6 5 −− − 22 194 54... −− PR03 Cu 0.8 5 −− − − 22 195 14... − 1 −− − − 06 199 6... − FeCu 0.6 5 −− − − 22 195 54... − Note 1. Other packaging versions are available on request. 12NC ORDERING CODE - indicating resistor type and packaging. Preferred types in bold ORDERING CODE 23.. ... ..... (LOOSE IN BOX) DOUBLE KINK LEAD ∅∅∅∅ TOL TYPE (1)(2)(3) PITCH = 17.8 (mm) PITCH = 25.4 (mm) PITCH ( ( ( (mm) (%) 1000 500 1000 500 units units units units PR01 Cu 0.6 5 22 193 03... −− − (1) FeCu 0.6 5 22 193 43... − 22 193 53... − PR02 Cu 0.8 5 22 194 23... −− − FeCu 0.6 5 22 194 83... −− − (2) FeCu 0.8 5 −− 22 194 63... − PR03 Cu 0.8 5 − 22 195 23... −− FeCu 0.6 5 − 22 195 83... −− (3) FeCu 0.8 5 −− − 22 195 63... Notes 1. PR01 pitch 12.5 mm. 2. PR02 pitch 15.0 mm. 3. PR03 pitch 20.0 mm, with reversed kinking direction as opposed to the drawing for the type with double kink figure. ORDERING INFORMATION Ordering Code (12NC) Last Digit of 12NC Indicating Resistance Decade The resistors have a 12-digit ordering code starting with 23. RESISTANCE DECADE LAST DIGIT For 5 % tolerance: 0.22 to 0.91 Ω 7 1 to 9.76 Ω 8 • The first 9 digits indicate the resistor type and packaging. 10 to 97.6 Ω 9 • The remaining 3 digits indicate the resistance value: 100 to 976 Ω 1 – The first 2 digits indicate the resistance value. 1 to 9.76 kΩ 2 10 to 97.6 kΩ 3 – The last digit indicates the resistance decade. 100 to 976 kΩ 4 For 1% tolerance: 1 MΩ 5 • The first 8 digits indicate the resistor type and packaging. Ordering Example • The remaining 4 digits indicate the resistance value: – The first 3 digits indicate the resistance value. The ordering code for resistor type PR02 with Cu leads and a value of 750 Ω with 5 % tolerance, supplied on a bandolier – The last digit indicates the resistance decade. of 1000 units in ammopack, is: 2306 198 53751. www.vishay.com For technical questions contact: ff3dresistors@vishay.com Document Number: 28729 2 Revision: 24-Feb-04 PR01/02/03 Power Metal Film Resistors Vishay BCcomponents DIMENSIONS L 1 ∅d ∅D L 2 Type with straight leads. DIMENSIONS - straight lead type and relevant physical dimensions; see straight leads outline ∅∅∅∅d ∅∅∅∅D L L 1 2 (mm) TYPE MAX. MAX. MAX. (mm) (mm) (mm) Cu FeCu PR01 2.5 6.5 8.5 0.58 ± 0.05 − PR02 3.9 10.0 12.0 0.78 ± 0.05 0.58 ± 0.05 PR03 5.2 16.7 19.5 0.78 ± 0.05 0.58 ± 0.05 P ±0.5 ∅D P ±0.5 1 1 8 + 2 L1 L2 +1 4.5 0 ∅d b1 S ∅B b2 P ±3 2 ±0.07 Dimensions in millimeters. Type with double kink. DIMENSIONS - double kink lead type and relevant physical dimensions; see double kinked outline ∅∅∅∅d ∅∅∅∅D S b1 b2 P P ∅∅∅∅B 1 2 (mm) TYPE LEAD STYLE MAX. MAX. (mm) (mm) (mm) (mm) (mm) (mm) (mm) Cu FeCu double kink 1.10 1.45 0.58 ± 0.05 0.58 ± 0.05 17.8 17.8 2 0.8 large pitch + 0.25/−0.20 + 0.25/−0.20 2.5 PR01 double kink 1.10 1.45 − 0.58 ± 0.05 12.5 12.5 2 0.8 small pitch + 0.25/−0.20 + 0.25/−0.20 double kink 1.10 1.45 0.78 ± 0.05 0.58 ± 0.05 17.8 17.8 2 0.8 large pitch + 0.25/−0.20 + 0.25/−0.20 3.9 PR02 double kink 1.30 1.65 − 0.78 ± 0.05 17.8 17.8 2 1.0 small pitch + 0.25/−0.20 + 0.25/−0.20 double kink 1.10 1.65 0.78 ± 0.05 0.58 ± 0.05 25.4 25.4 2 1.0 large pitch + 0.25/−0.20 + 0.25/−0.20 PR03 5.2 double kink 1.30 2.15 − 0.78 ± 0.05 22.0 20.0 2 1.0 small pitch + 0.25/−0.20 + 0.25/−0.20 Document Number: 28729 For technical questions contact: ff3dresistors@vishay.com www.vishay.com Revision: 24-Feb-04 3 < 1 kΩ < 30 kΩ > 30 kΩ 1 kΩ 39 kΩ 39 kΩ 51 kΩ 51 kΩ 1 kΩ PR01/02/03 Vishay BCcomponents Power Metal Film Resistors MASS PER 100 UNITS MOUNTING PITCH MASS PITCH TYPE TYPE LEAD STYLE (g) mm e PR01 28 (1) (1) PR01 straight leads 12.5 5 PR02 62 radial taped 4.8 2 PR03 120 double kink large pitch 17.8 7 MARKING double kink small pitch 12.5 5 The nominal resistance and tolerance are marked on the (1) (1) PR02 straight leads 15.0 6 resistor using four coloured bands in accordance with IEC publication 60062, “Colour codes for fixed resistors”. radial taped 4.8 2 double kink large pitch 17.8 7 OUTLINES double kink small pitch 15.0 6 The length of the body (L ) is measured by inserting the leads 1 (1) (1) PR03 straight leads 23.0 9 into holes of two identical gauge plates and moving these plates parallel to each other until the resistor body is clamped double kink large pitch 25.4 10 without deformation (“IEC publication 60294”). double kink small pitch 20.0 8 MOUNTING Note The resistors are suitable for processing on automatic 1. Recommended minimum value. insertion equipment and cutting and bending machines. FUNCTIONAL DESCRIPTION PRODUCT CHARACTERIZATION Standard values of nominal resistance are taken from the E96/E24 series for resistors with a tolerance of ± 1 % or ± 5 %. The values of the E96/E24 series are in accordance with “IEC publication 60063”. FUNCTIONAL PERFORMANCE Tamb = 40°C 70°C T = amb 40 °C 70 °C 1.00 2.00 P P (W) (W) 100 °C 100 °C 0.75 1.50 125 °C 125 °C 0.50 1.00 155 °C 155 °C 0.25 0.50 205 °C 220 °C Tm (°C) T (°C) m 10 5.0 2.0 1.0 0.5 0.2 0.1% ∆ R 10 5.0 2.0 1.0 0.5 0.2 0.1 % ∆ R PR01 Drift nomogram. PR02 Drift nomogram. T = 40 °C 70 °C amb 3.00 LIMITING VALUES P 100 °C (W) LIMITING LIMITING 2.25 125 °C LEAD (1) TYPE RANGE POWER VOLTAGE 155 °C MATERIAL 1.50 (W) (V) R < 1 Ω 0.6 0.75 Cu 350 PR01 1 Ω ≤ R 1.0 R < 1 Ω 1.2 250 °C Cu 500 T (°C) PR02 1 Ω ≤ R 2.0 m FeCu 1 Ω ≤ R 1.3 R < 1 Ω 1.6 Cu 750 PR03 1 Ω ≤ R 3.0 FeCu 1 Ω ≤ R 2.5 Note 1. The maximum voltage that may be continuously applied to the 10 5.0 2.0 1.0 0.5 0.2 0.1 % ∆ R resistor element, see “IEC publication 60115-1”. PR03 Drift nomogram. The maximum permissible hot-spot temperature is 205 °C for PR01, 220 °C for PR02 and 250 °C for PR03. www.vishay.com For technical questions contact: ff3dresistors@vishay.com Document Number: 28729 4 Revision: 24-Feb-04 100000 h 10000 h 1000 h 100000 h 10000 h 100000 h 10000 h 1000 h 1000 h PR01/02/03 Power Metal Film Resistors Vishay BCcomponents The power that the resistor can disipate depends on the operating temperature. P max (%P ) rated 100 50 0 −55 0 50 70 100 155 T (°C) amb Maximum dissipation (P ) in percentage of rated power as a function of the ambient temperature (T ). max amb Derating 3 10 P max (W) t /t = 1000 p i 500 2 10 200 100 50 20 10 10 5 2 1 −1 10 −6 −5 −4 −3 −2 −1 10 10 10 10 10 10 1 t (s) i PR01 Pulse on a regular basis; maximum permissible peak pulse power () P as a function of pulse duration (t ). i max 1200 V max (V) 1000 800 600 400 200 0 6 5 4 3 2 1 10 10 10 10 10 10 1 t (s) i PR01 Pulse on a regular basis; maximum permissible peak pulse voltage as a function of pulse duration (t ). () V i max Pulse Loading Capabilities Document Number: 28729 For technical questions contact: ff3dresistors@vishay.com www.vishay.com Revision: 24-Feb-04 5 PR01/02/03 Vishay BCcomponents Power Metal Film Resistors 3 10 P max (W) t /t = 1000 p i 500 2 200 10 100 50 20 10 5 10 2 1 1 10 6 5 4 3 2 1 10 10 10 10 10 10 1 t (s) i PR02 Pulse on a regular basis; maximum permissible peak pulse power () P as a function of pulse duration (t ). i max 1700 V max (V) 1500 1300 110 0 900 700 500 6 5 4 3 2 1 10 10 10 10 10 10 1 t (s) i PR02 Pulse on a regular basis; maximum permissible peak pulse voltage () V as a function of pulse duration (t ). i max 4 10 P max (W) 3 10 t /t = 1000 p i 500 200 100 50 2 10 20 10 5 10 2 1 6 5 4 3 2 1 10 10 10 10 10 10 1 t (s) i PR03 Pulse on a regular basis; maximum permissible peak pulse power as a function of pulse duration (t ). () P i max Pulse Loading Capabilities www.vishay.com For technical questions contact: ff3dresistors@vishay.com Document Number: 28729 6 Revision: 24-Feb-04 PR01/02/03 Power Metal Film Resistors Vishay BCcomponents 2400 V max (V) 2000 1600 1200 800 400 0 6 5 4 3 2 1 10 10 10 10 10 10 1 t (s) i PR03 Pulse on a regular basis; maximum permissible peak pulse voltage as a function of pulse duration (t ). () V i max Pulse Loading Capabilities 2 2 10 10 t t (s) (s) 10 10 1 1 1 1 10 10 04 20 300 50 04 20 300 50 10 10 (W) (W) P P overload overload PR01 Time to interruption as a function of overload PR01 Time to interruption as a function of overload power power for range: 1 R ≤ R ≤ 15 R. for range: 0 R 22 ≤ R < 1 R. n n This graph is based on measured data under constant voltage This graph is based on measured data under constant voltage conditions; the data may deviate according to the applications. conditions; the data may deviate according to the applications. 2 2 10 10 t t (s) (s) 10 10 1 1 1 1 10 10 08 20 40 600 100 120 04 10 20 300 50 P (W) (W) P overload overload PR01 Time to interruption as a function of overload PR02 Time to interruption as a function of overload power for range: 16 R ≤ R ≤ 560 R. power for range: 0.33 R ≤ R < 5 R. n n This graph is based on measured data under constant voltage This graph is based on measured data under constant voltage conditions; the data may deviate according to the applications. conditions; the data may deviate according to the applications. Interruption Characteristics Document Number: 28729 For technical questions contact: ff3dresistors@vishay.com www.vishay.com Revision: 24-Feb-04 7 PR01/02/03 Vishay BCcomponents Power Metal Film Resistors 2 2 10 10 t t (s) (s) 10 10 1 1 1 1 10 10 08 20 40 600 100 120 08 20 40 600 100 120 P (W) P (W) overload overload PR02 Time to interruption as a function of overload PR02 Time to interruption as a function of overload power for range: 5 R ≤ R < 68 R. power for range: 68 R ≤ R ≤ 560 R. n n This graph is based on measured data under constant voltage This graph is based on measured data under constant voltage conditions; the data may deviate according to the applications. conditions; the data may deviate according to the applications. Interruption Characteristics 2 10 200 ∆ T t (K) (s) 160 10 120 80 1 40 1 10 0 50 100 150 200 250 0 P overload (W) 0 0.4 0.8 1.2 P (W) PR03 Time to interruption as a function of overload power Ş0.6 mm Cu-leads. for range: 0.68 R ≤ R ≤ 560 R. n PR01 Hot-spot temperature rise (∆T) as a This graph is based on measured data under constant voltage function of dissipated power. conditions; the data may deviate according to the applications. Interruption Characteristics 100 200 ∆ T ∆T (K) (K) 80 160 60 120 15 mm 40 80 20 mm 25 mm 20 40 0 0 0 0.4 0.8 1.2 0 0.4 0.8 1.2 P (W) P (W) Ş0.6 mm Cu-leads. Ş0.6 mm FeCu-leads. Minimum distance from resistor body to PCB = 1 mm. PR01 Temperature rise (∆T) at the lead end (soldering point) as a PR01 Hot-spot temperature rise (∆T) as a function function of dissipated power at various lead lengths after mounting. of dissipated power. Application Information www.vishay.com For technical questions contact: ff3dresistors@vishay.com Document Number: 28729 8 Revision: 24-Feb-04 PR01/02/03 Power Metal Film Resistors Vishay BCcomponents 100 200 ∆T ∆ T (K) (K) 80 160 60 120 15 mm 40 80 20 mm 25 mm 20 40 0 0 0 0.4 0.8 1.2 0 0.8 1.6 2.4 P (W) P (W) Ş0.6 mm FeCu-leads. Ş0.8 mm Cu-leads. Minimum distance from resistor body to PCB = 1 mm. PR02 Hot-spot temperature rise (∆T) as a function of PR01 Temperature rise (∆T) at the lead end (soldering point) as a dissipated power. function of dissipated power at various lead lengths after mounting. 100 240 ∆ T ∆ T (K) (K) 200 80 15 mm 160 60 20 mm 120 25 mm 40 80 20 40 0 0 0 0.8 1.6 2.4 02 1 P (W) P (W) Ş0.8 mm Cu-leads. Ş0.6 mm FeCu-leads. Minimum distance from resistor body to PCB = 1 mm. PR02 Temperature rise (∆T) at the lead end (soldering point) as a PR02 Hot-spot temperature rise (∆T) as a function of function of dissipated power at various lead lengths after mounting. dissipated power. 240 100 ∆T ∆ T (K) (K) 200 80 160 15 mm 60 120 20 mm 40 80 25 mm 20 40 0 0 02 1 P (W) 01 2 P (W) Ş0.6 mm FeCu-leads. Ş0.8 mm FeCu-leads. Minimum distance from resistor body to PCB = 1 mm. PR02 Hot-spot temperature rise (∆T) as a function PR02 Temperature rise (∆T) at the lead end (soldering point) as a of dissipated power. function of dissipated power at various lead lengths after mounting. Application Information Document Number: 28729 For technical questions contact: ff3dresistors@vishay.com www.vishay.com Revision: 24-Feb-04 9 PR01/02/03 Vishay BCcomponents Power Metal Film Resistors 100 200 ∆T ∆ T (K) (K) 80 160 15 mm 20 mm 60 120 25 mm 40 80 20 40 0 0 0 0.8 1.6 2.4 01 2 3 P (W) P (W) Ş0.8 mm Cu-leads. Ş0.8 mm FeCu-leads. Minimum distance from resistor body to PCB = 1 mm. PR03 Hot-spot temperature rise (∆T) as a function of PR02 Temperature rise (∆T) at the lead end (soldering point) as a dissipated power. function of dissipated power at various lead lengths after mounting. 240 100 ∆ T ∆ T (K) (K) 15 mm 200 80 160 20 mm 60 120 25 mm 40 80 20 40 0 0 01 2 3 01 2 3 P (W) P (W) Ş0.8 mm Cu-leads. Ş0.6 mm FeCu-leads. Minimum distance from resistor body to PCB = 1 mm. PR03 Temperature rise (∆T) at the lead end (soldering point) as a PR03 Hot-spot temperature rise (∆T) as a function of function of dissipated power at various lead lengths after mounting. dissipated power. 240 100 ∆T ∆ T (K) (K) 200 80 10 mm 160 60 15 mm 120 20 mm 40 80 25 mm 20 40 0 0 01 2 3 01 2 3 P (W) P (W) Ş0.6 mm FeCu-leads. Ş0.8 mm FeCu-leads. Minimum distance from resistor body to PCB = 1 mm. PR03 Temperature rise (∆T) at the lead end (soldering point) as a PR03 Hot-spot temperature rise (∆T) as a function of function of dissipated power at various lead lengths after mounting. dissipated power. Application Information www.vishay.com For technical questions contact: ff3dresistors@vishay.com Document Number: 28729 10 Revision: 24-Feb-04 PR01/02/03 Vishay BCcomponents Power Metal Film Resistors 100 ∆T (K) 80 15 mm 60 20 mm 40 20 0 0 0.8 1.6 2.4 3.2 P (W) Ş0.8 mm FeCu-leads. Minimum distance from resistor body to PCB = 1 mm. PR03 Temperature rise (∆T) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. 2 10 Z R R = 1 Ω n 10 R = 24 Ω n 1 R = 12 kΩ n 1 10 R = 100 kΩ n 2 10 1 2 3 10 1 10 10 10 f (MHz) PR01 Impedance as a function of applied frequency. 120 ϕ(deg) R = 1 Ω n 80 R = 24 Ω n 40 0 40 R = 12 kΩ n R = 100 kΩ n 80 1 2 3 10 1 10 10 10 f (MHz) PR01 Phase angle as a function of applied frequency. Application Information Document Number: 28729 For technical questions contact: ff3dresistors@vishay.com www.vishay.com Revision: 24-Feb-04 11 PR01/02/03 Vishay BCcomponents Power Metal Film Resistors 2 10 Z R R = 1.2 Ω n 10 R = 10 Ω n 1 R = 22 kΩ n 1 10 R = 124 kΩ n 2 10 1 2 3 10 1 10 10 10 f (MHz) PR02 Impedance as a function of applied frequency. 120 ϕ(deg) R = 1.2 Ω n 80 R = 10 Ω n 40 0 40 R = 22 kΩ n 80 R = 124 kΩ n 120 1 2 3 10 1 10 10 10 f (MHz) PR02 Phase angle as a function of applied frequency. 2 10 Z R R = 1.5 Ω n 10 R = 18 Ω n 1 R = 1.3 kΩ n 1 10 R = 20 kΩ n R = 100 kΩ n 2 10 2 3 1 10 10 10 f (MHz) PR03 Impedance as a function of applied frequency. Application Information www.vishay.com For technical questions contact: ff3dresistors@vishay.com Document Number: 28729 12 Revision: 24-Feb-04 PR01/02/03 Power Metal Film Resistors Vishay BCcomponents 90 R = 1.5 Ω n ϕ(deg) R = 18 Ω n 60 30 0 R = 1.3 kΩ n 30 60 R = 20 kΩ n R = 100 kΩ n 90 2 3 1 10 10 10 f (MHz) PR03 Phase angle as a function of applied frequency. Application Information TESTS AND REQUIREMENTS Essentially all tests are carried out in accordance with the and under standard atmospheric conditions according to schedule of “IEC publication 60115-1”, category “IEC 60068-1”, subclause 5.3. LCT/UCT/56 (rated temperature range: Lower Category In the Test Procedures and Requirements table, tests and Temperature, Upper Category Temperature; damp heat, requirements are listed with reference to the relevant long term, 56 days). The testing also covers the clauses of “IEC publications 60115-1 and 60068-2”; a short requirements specified by EIA and EIAJ. description of the test procedure is also given. In some instances deviations from the IEC recommendations were The tests are carried out in accordance with IEC publication necessary for our method of specifying. 60068-2, “Recommended basic climatic and mechanical robustness testing procedure for electronic components” All soldering tests are performed with mildly activated flux. TEST PROCEDURES AND REQUIREMENTS IEC IEC 60068-2 60115-1 TEST PROCEDURE REQUIREMENTS TEST CLAUSE METHOD TESTS IN ACCORDANCE WITH THE SCHEDULE OF IEC PUBLICATION 60115-1 4.4.1 visual examination no holes; clean surface; no damage 4.4.2 dimensions (outline) gauge (mm) see Straight & Kinked Dimensions tables applied voltage (+ 0/−10 %): R < 10 Ω: 0.1 V 10 Ω ≤ R < 100 Ω: 0.3 V 100 Ω ≤ R < 1 kΩ: 1 V 4.5 resistance R − R : max. ± 5 % nom 1 kΩ ≤ R < 10 kΩ: 3 V 10 kΩ ≤ R < 100 kΩ: 10 V 100 kΩ ≤ R < 1 MΩ: 25 V R = 1 MΩ: 50 V 4.18 20 (Tb) resistance to soldering heat thermal shock: 3 s; 350 °C; 3 mm from body ∆R/R max.: ± 1 % + 0.05 Ω 4.29 45 (Xa) component solvent isopropyl alcohol or H O no visual damage 2 resistance followed by brushing in accordance with “MIL 202 F” 4.17 20 (Ta) solderability 2 s; 235 °C good tinning; no damage 4.7 voltage proof on maximum voltage 500 V (RMS) no breakdown or ţashover insulation during 1 minute; metal block method Document Number: 28729 For technical questions contact: ff3dresistors@vishay.com www.vishay.com Revision: 24-Feb-04 13 PR01/02/03 Vishay BCcomponents Power Metal Film Resistors TEST PROCEDURES AND REQUIREMENTS IEC IEC 60068-2 60115-1 TEST PROCEDURE REQUIREMENTS TEST CLAUSE METHOD 4.16 21 (U) robustness of terminations: −6 4.16.2 21 (Ua1) tensile all samples load 10 N; 10 s number of failures: < 1 × 10 −6 4.16.3 21 (Ub) bending half number of samples load 5 N; 4 × 90° number of failures: < 1 × 10 4.16.4 21 (Uc) torsion other half of samples 3 × 360° in opposite directions no damage ∆R/R max.: ± 0.5 % + 0.05 Ω 4.20 29 (Eb) bump 3 × 1500 bumps in three directions; 40 g no damage ∆R/R max.: ± 0.5 % + 0.05 Ω 4.22 6 (Fc) vibration frequency 10 to 500 Hz; displacement 1.5 mm no damage ∆R/R max.: ± 0.5 % + 0.05 Ω or acceleration 10 g; three directions; total 6 hours (3 × 2 hours) 4.19 14 (Na) rapid change of 30 minutes at LCT and no visual damage temperature 30 minutes at UCT; 5 cycles PR01: ∆R/R max.: ± 1 % + 0.05 Ω PR02: ∆R/R max.: ± 1 % + 0.05 Ω PR03: ∆R/R max.: ± 2 % + 0.05 Ω 4.23 climatic sequence: 4.23.3 30 (Db) damp heat st (accelerated) 1 cycle 3 4.23.6 30 (Db) damp heat 6 days; 55 °C; 95 to 98 % RH R min.: 10 MΩ ins (accelerated) ∆R/R max.: ± 3 % + 0.1 Ω remaining cycles 4.24.2 3 (Ca) damp heat 56 days; 40 °C; 90 to 95% RH; loaded with R min.: 1000 MΩ ins (steady state) (IEC) 0.01 P (IEC steps: 4 to 100 V) ∆R/R max.: ± 3 % + 0.1 Ω n 4.25.1 endurance (at 70 °C) 1000 hours; loaded with P or V ; ∆R/R max.: ± 5 % + 0.1 Ω n max 1.5 hours on and 0.5 hours off 4.8.4.2 temperature coefŢcient at 20/LCT/20 °C and 20/UCT/20 °C ≤± 250 −6 (TC × 10 /K) OTHER TESTS IN ACCORDANCE WITH IEC 60115 CLAUSES AND IEC 60068 TEST METHOD 4.17 20 (Tb) solderability 8 hours steam or 16 hours 155 °C; leads good tinning (≥ 95 % covered); (after ageing) immersed 6 mm for 2 ± 0.5 s in a solder bath no damage at 235 ± 5 °C 4 4.6.1.1 insulation resistance maximum voltage (DC) after 1 minute; metal R min.: 10 MΩ ins block method nd see 2 amendment to pulse load see Pulse Load Capabilities graphs IEC 60115-1,Jan. ’87 www.vishay.com For technical questions contact: ff3dresistors@vishay.com Document Number: 28729 14 Revision: 24-Feb-04