BCcomponents DATA SHEET PR01/02/03 Professional power metal film resistors Product specification Supersedes data of 8th March 2001 File under BCcomponents, BC08 2001 Jul 13 BCcomponents Product specification Professional power metal film resistors FEATURES DESCRIPTION • High power in small packages 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 • Different lead materials for different applications • Defined interruption behaviour. APPLICATIONS • All general purpose power applications. PR01/02/03 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”. QUICK REFERENCE DATA VALUE DESCRIPTION Resistance range PR02 PR01 0.22 Ω to 1 MΩ PR03 Cu-lead FeCu-lead Cu-lead FeCu-lead 0.33 Ω to 1 MΩ 1 Ω to 1 MΩ 0.68 Ω to 1 MΩ 1 Ω to 1 MΩ ±1% (E24, E96 series); ±5% (E24 series); see notes 1 and 2 Resistance tolerance and series Maximum dissipation at Tamb = 70 °C: R<1Ω 0.6 W 1.2 W − 1.6 W − 1Ω≤R 1W 2W 1.3 W 3W 2.5 W 135 K/W 75 K/W 115 K/W 60 K/W 75 K/W Thermal resistance (Rth) ≤±250 × 10−6/K Temperature coefficient Maximum permissible voltage (DC or RMS) 350 V 500 V Basic specifications IEC 60115-1 and 60115-4 Climatic category (IEC 60068) 55/155/56 Stability after: ∆R/R max.: ±5% + 0.1 Ω load climatic tests ∆R/R max.: ±3% + 0.1 Ω soldering ∆R/R max.: ±1% + 0.05 Ω Notes 1. 1% tolerance is available for Rn-range from 1R upwards. 2. 2% tolerance is available on request for Rn-range from 1R upwards. 2001 Jul 13 2 750 V BCcomponents Product specification Professional power metal film resistors PR01/02/03 ORDERING INFORMATION Table 1 Ordering code indicating resistor type and packaging ORDERING CODE 23.. ... ..... (BANDOLIER) AMMOPACK TYPE PR01 LEAD ∅ (mm) TOL (%) RADIAL TAPED 52 mm 52 mm 63 mm 73 mm 80 mm 73 mm 52 mm 4000 units 3000 units 5000 units 1000 units 500 units 1000 units 500 units 5000 units 5000 units 1 − − − − − − − − 5 06 197 03... − 22 196 1.... 22 193 14... − 22 193 13... − 22 193 23... 06 197 23... 1 − − − − − − − − 5 − 06 198 03... − − − 06 198 23... − − − 22 194 13... 22 194 53... − 5 06 197 53... 22 197 1.... 06 198 53... 22 194 54... − − − 5 − − − − − − − − − − − − 5 − − − − 22 195 13... 06 193 5... 22 195 53... − 1 22 195 14... 06 199 5... 22 195 54... − − Cu 0.6 Cu 0.8 PR02 FeCu 0.6 Cu 0.8 PR03 FeCu 0.6 Table 2 REEL STRAIGHT LEADS − − − Ordering code indicating resistor type and packaging ORDERING CODE 23.. ... ..... (LOOSE IN BOX) TYPE PR01 LEAD ∅ (mm) TOL (%) CROPPED AND FORMED PITCH = 17.8 (mm) PITCH = 25.4 (mm) DOUBLE KINK PITCH = 17.8 PITCH = 25.4 (mm) (mm) PITCH(1)(2)(3) 1000 units 500 units 1000 units 500 units 1000 units Cu 0.6 5 22 193 33... − 22 193 03... − − − FeCu 0.6 5 5 − − 22 193 43... − 22 193 53...(1) − 22 194 33... 22 194 73... − 22 194 23... − − − − 22 194 83... − − − − − − − − 22 195 33... 22 195 73... − − − − − − 22 195 23... 22 195 83... − 22 194 63...(2) − − − 22 195 63...(3) Cu 0.8 PR02 FeCu 0.6 5 FeCu 0.8 5 Cu 0.8 PR03 FeCu 0.6 FeCu 0.8 5 5 5 Notes 1. PR01 pitch 12.5 mm. 2. PR02 pitch 15.0 mm. 3. PR03 pitch 20.0 mm. 2001 Jul 13 3 − − − 500 units BCcomponents Product specification Professional power metal film resistors Ordering code (12NC) Table 3 • The resistors have a 12-digit ordering code starting with 23. Last digit of 12NC RESISTANCE DECADE LAST DIGIT • The first 7 digits indicate the resistor type and packaging; see Tables 1 and 2. 0.22 to 0.91 Ω 7 1 to 9.76 Ω 8 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. – The last digit indicates the resistance decade in accordance with Table 3. 1 to 9.76 kΩ 2 10 to 97.6 kΩ 3 100 to 976 kΩ 4 1 MΩ 5 PR01/02/03 Ordering example The ordering code for resistor type PR02 with Cu leads and a value of 750 Ω, supplied on a bandolier of 1000 units in ammopack, is: 2322 194 13751. FUNCTIONAL DESCRIPTION Product characterization Standard values of nominal resistance are taken from the E24 series for resistors with a tolerance of ±5%. The values of the E24 series are in accordance with “IEC publication 60063”. o T amb = 40 C o 70 C 1.00 P (W) 100 oC 0.75 125 oC 0.50 o 155 C 0.25 Tm ( oC) h 30 h 0 00 10 30 h 1k Ω kΩ kΩ 10 00 00 00 10 205 oC 10 5.0 2.0 1.0 0.5 0.2 ∆R 0.1 % PR01 Fig.1 Drift nomogram. 2001 Jul 13 4 MLB660 BCcomponents Product specification Professional power metal film resistors PR01/02/03 T amb = 40 oC 70 oC 2.00 P (W) 100 oC 1.50 o 125 C 1.00 155 oC 0.50 Tm ( oC) 00 220 oC h 00 10 0 00 h 39 39 kΩ 10 00 h 10 1k Ω kΩ 10 5.0 2.0 1.0 0.5 0.2 ∆R 0.1 % PR02 Fig.2 Drift nomogram. 2001 Jul 13 5 MLB683 BCcomponents Product specification Professional power metal film resistors PR01/02/03 o T amb = 40 C o 70 C 3.00 P (W) o 100 C o 2.25 125 C 155 oC 1.50 0.75 Tm ( oC) 00 h 00 10 00 1k Ω 51 k Ω 51 kΩ h 0 10 00 h 10 10 5.0 2.0 1.0 0.5 0.2 ∆R 0.1 % PR03 Fig.3 Drift nomogram. 2001 Jul 13 250 oC 6 MLB693 BCcomponents Product specification Professional power metal film resistors PR01/02/03 Limiting values TYPE PR01 LEAD MATERIAL R<1Ω Cu R<1Ω 500 1Ω≤R 1.6 1Ω≤R 750 1Ω≤R FeCu 2.0 1.3 R<1Ω Cu 0.6 1.0 1.2 1Ω≤R FeCu PR03 LIMITING POWER (W) 350 1Ω≤R Cu PR02 LIMITING VOLTAGE(1) (V) RANGE 3.0 2.5 Note 1. The maximum voltage that may be continuously applied to the resistor element, see “IEC publication 60115-1”. The maximum permissible hot-spot temperature is 205 °C for PR01, 220 °C for PR02 and 250 °C for PR03. DERATING The power that the resistor can dissipate depends on the operating temperature; see Fig.4. CCB412 Pmax (%Prated) 100 50 0 −55 Fig.4 0 50 70 100 155 Tamb (°C) Maximum dissipation (Pmax) in percentage of rated power as a function of the ambient temperature (Tamb). 2001 Jul 13 7 BCcomponents Product specification Professional power metal film resistors PR01/02/03 PULSE LOADING CAPABILITIES MLB738 103 ˆ max P (W) tp/ti = 1000 500 102 200 100 50 20 10 10 5 2 1 10−1 10−6 10−5 10−4 10−3 10−2 10−1 1 ti (s) PR01 Fig.5 ˆ Pulse on a regular basis; maximum permissible peak pulse power ( P max ) as a function of pulse duration (ti). MLB737 1200 Vmax (V) 1000 800 600 400 200 0 10 6 10 5 10 4 10 3 10 2 10 1 PR01 Fig.6 2001 Jul 13 ˆ Pulse on a regular basis; maximum permissible peak pulse voltage ( V max ) as a function of pulse duration (ti). 8 t i (s) 1 BCcomponents Product specification Professional power metal film resistors PR01/02/03 MLB685 10 3 Pmax (W) t p /t i = 1000 500 200 10 2 100 50 20 10 5 10 2 1 10 1 10 6 10 5 10 4 10 3 10 2 10 1 1 t i (s) PR02 Fig.7 ˆ Pulse on a regular basis; maximum permissible peak pulse power ( P max ) as a function of pulse duration (ti). MLB684 1700 Vmax (V) 1500 1300 1100 900 700 500 10 6 10 5 10 4 10 3 10 2 10 1 PR02 Fig.8 2001 Jul 13 ˆ Pulse on a regular basis; maximum permissible peak pulse voltage ( V max ) as a function of pulse duration (ti). 9 t i (s) 1 BCcomponents Product specification Professional power metal film resistors PR01/02/03 MLB695 10 4 Pmax (W) 10 3 t p /t i = 1000 500 200 100 50 10 2 20 10 5 10 2 1 10 6 10 5 10 4 10 3 10 2 10 1 1 t i (s) PR03 Fig.9 ˆ Pulse on a regular basis; maximum permissible peak pulse power ( P max ) as a function of pulse duration (ti). MLB694 2400 Vmax (V) 2000 1600 1200 800 400 0 10 6 10 5 10 4 10 3 10 2 10 1 PR03 ˆ Fig.10 Pulse on a regular basis; maximum permissible peak pulse voltage ( V max ) as a function of pulse duration (ti). 2001 Jul 13 10 t i (s) 1 BCcomponents Product specification Professional power metal film resistors PR01/02/03 INTERRUPTION CHARACTERISTICS MLB661 10 2 MLB662 10 2 t (s) t (s) 10 10 1 1 10 1 0 10 20 30 10 1 40 50 P overload (W) 0 10 20 30 40 50 P overload (W) The graph is based on measured data under constant voltage conditions; these data may deviate according to the application. The graph is based on measured data under constant voltage conditions; these data may deviate according to the application. PR01 PR01 Fig.11 Time to interruption as a function of overload power for range: 0R22 ≤ Rn < 1R. Fig.12 Time to interruption as a function of overload power for range: 1R ≤ Rn ≤ 15R. MLB663 10 2 t (s) 10 1 10 1 0 10 20 30 40 50 P overload (W) The graph is based on measured data under constant voltage conditions; these data may deviate according to the application. PR01 Fig.13 Time to interruption as a function of overload power for range: 16R ≤ Rn ≤ 560R. 2001 Jul 13 11 BCcomponents Product specification Professional power metal film resistors MLB766 10 2 PR01/02/03 MLB767 10 2 t (s) t (s) 10 10 1 1 10 1 0 20 40 60 10 1 80 100 120 Poverload (W) 0 20 40 60 80 100 120 Poverload (W) The graph is based on measured data under constant voltage conditions; these data may deviate according to the application. The graph is based on measured data under constant voltage conditions; these data may deviate according to the application. PR02 PR02 Fig.14 Time to interruption as a function of overload power for range: 0.33R ≤ Rn < 5R. Fig.15 Time to interruption as a function of overload power for range: 5R ≤ Rn < 68R. MLB768 10 2 MLB773 10 2 t (s) t (s) 10 10 1 1 10 1 10 1 0 20 40 60 80 100 120 Poverload (W) 0 50 100 150 200 250 P overload (W) The graph is based on measured data under constant voltage conditions; these data may deviate according to the application. The graph is based on measured data under constant voltage conditions; these data may deviate according to the application. PR02 PR03 Fig.16 Time to interruption as a function of overload power for range: 68R ≤ Rn ≤ 560R. Fig.17 Time to interruption as a function of overload power for range: 0.68R ≤ Rn ≤ 560R. 2001 Jul 13 12 BCcomponents Product specification Professional power metal film resistors PR01/02/03 Application information MLB735 MLB736 200 100 ∆T (K) ∆T (K) 160 80 120 60 80 40 40 20 0 0 0.4 0.8 P (W) 15 mm 20 mm 25 mm 0 1.2 0 0.4 0.8 P (W) ∅0.6 mm Cu-leads. ∅0.6 mm Cu-leads. Minimum distance from resistor body to PCB = 1 mm. PR01 PR01 1.2 Fig.19 Temperature rise (∆T) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. Fig.18 Hot-spot temperature rise (∆T) as a function of dissipated power. CCB014 CCB015 200 100 ∆T (K) ∆T (K) 160 80 120 60 80 40 15 mm 20 mm 25 mm 40 20 0 0 0 0.4 0.8 P (W) 1.2 0 0.4 0.8 P (W) ∅0.6 mm FeCu-leads. ∅0.6 mm FeCu-leads. Minimum distance from resistor body to PCB = 1 mm. PR01 PR01 Fig.21 Temperature rise (∆T) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. Fig.20 Hot-spot temperature rise (∆T) as a function of dissipated power. 2001 Jul 13 1.2 13 BCcomponents Product specification Professional power metal film resistors MLB679 PR01/02/03 MLB680 100 200 ∆T (K) ∆T (K) 160 80 120 60 80 40 40 20 15 mm 20 mm 25 mm 0 0 0 0.8 1.6 P (W) 0 2.4 1 ∅0.8 mm Cu-leads. ∅0.8 mm Cu-leads. Minimum distance from resistor body to PCB = 1 mm. PR02 PR02 Fig.23 Temperature rise (∆T) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. Fig.22 Hot-spot temperature rise (∆T) as a function of dissipated power. MLB681 240 ∆T (K) 200 2 P (W) MLB682 100 ∆T (K) 80 160 60 15 mm 40 20 mm 120 80 25 mm 20 40 0 0 0 0.8 1.6 P (W) 0 2.4 1 P (W) ∅0.6 mm FeCu-leads. ∅0.6 mm FeCu-leads. Minimum distance from resistor body to PCB = 1 mm. PR02 PR02 Fig.25 Temperature rise (∆T) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. Fig.24 Hot-spot temperature rise (∆T) as a function of dissipated power. 2001 Jul 13 2 14 BCcomponents Product specification Professional power metal film resistors PR01/02/03 CCB016 CCB017 240 ∆T (K) 200 100 ∆T (K) 80 15 mm 160 20 mm 60 25 mm 120 40 80 20 40 0 0 0 1 0 2 P (W) 0.8 1.6 P (W) ∅0.8 mm FeCu-leads. ∅0.8 mm FeCu-leads. Minimum distance from resistor body to PCB = 1 mm. PR02 PR02 2.4 Fig.27 Temperature rise (∆T) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. Fig.26 Hot-spot temperature rise (∆T) as a function of dissipated power. MLB689 MLB690 200 100 ∆T (K) ∆T (K) 160 80 120 60 80 40 40 20 15 mm 20 mm 25 mm 0 0 0 1 2 P (W) 3 0 1 2 ∅0.8 mm Cu-leads. ∅0.8 mm Cu-leads. Minimum distance from resistor body to PCB = 1 mm. PR03 PR03 3 Fig.29 Temperature rise (∆T) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. Fig.28 Hot-spot temperature rise (∆T) as a function of dissipated power. 2001 Jul 13 P (W) 15 BCcomponents Product specification Professional power metal film resistors PR01/02/03 MLB691 240 ∆T (K) 200 MLB692 100 ∆T (K) 80 10 mm 160 60 15 mm 120 20 mm 40 80 25 mm 20 40 0 0 0 1 2 P (W) 0 3 1 2 P (W) ∅0.6 mm FeCu-leads. ∅0.6 mm FeCu-leads. Minimum distance from resistor body to PCB = 1 mm. PR03 PR03 3 Fig.31 Temperature rise (∆T) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. Fig.30 Hot-spot temperature rise (∆T) as a function of dissipated power. CCB018 CCB019 240 ∆T (K) 200 100 ∆T (K) 80 15 mm 160 60 20 mm 120 40 80 20 40 0 0 0 1 2 P (W) 0 3 0.8 1.6 2.4 P (W) 3.2 ∅0.8 mm FeCu-leads. ∅0.8 mm FeCu-leads. Minimum distance from resistor body to PCB = 1 mm. PR03 PR03 Fig.33 Temperature rise (∆T) at the lead end (soldering point) as a function of dissipated power at various lead lengths after mounting. Fig.32 Hot-spot temperature rise (∆T) as a function of dissipated power. 2001 Jul 13 16 BCcomponents Product specification Professional power metal film resistors PR01/02/03 MLB659 10 2 Z R R n= 1 Ω 10 R n = 24 Ω 1 R n = 12 kΩ 10 1 10 2 10 1 R n = 100 kΩ 1 10 10 2 f (MHz) 10 3 PR01 Fig.34 Impedance as a function of applied frequency. MLB658 120 ϕ (deg) R n= 1 Ω 80 R n = 24 Ω 40 0 40 R n = 12 kΩ R n = 100 kΩ 80 10 1 1 10 10 2 PR01 Fig.35 Phase angle as a function of applied frequency. 2001 Jul 13 17 f (MHz) 10 3 BCcomponents Product specification Professional power metal film resistors PR01/02/03 MLB769 10 2 Z R R n = 1.2 Ω 10 R n = 10 Ω 1 R n = 22 kΩ 10 1 R n = 124 kΩ 10 2 10 1 1 10 10 2 f (MHz) 10 3 PR02 Fig.36 Impedance as a function of applied frequency. MLB770 120 ϕ (deg) R n = 1.2 Ω 80 R n = 10 Ω 40 0 40 R n = 22 kΩ 80 120 10 1 R n = 124 kΩ 1 10 10 2 PR02 Fig.37 Phase angle as a function of applied frequency. 2001 Jul 13 18 f (MHz) 10 3 BCcomponents Product specification Professional power metal film resistors PR01/02/03 MLB771 10 2 Z R R n = 1.5 Ω 10 R n = 18 Ω 1 R n = 1.3 kΩ 10 1 R n = 20 kΩ R n = 100 kΩ 10 2 1 10 2 10 f (MHz) 10 3 PR03 Fig.38 Impedance as a function of applied frequency. MLB772 90 R n = 1.5 Ω ϕ (deg) R n = 18 Ω 60 30 0 R n = 1.3 kΩ 30 60 R n = 20 kΩ R n = 100 kΩ 90 1 10 2 10 PR03 Fig.39 Phase angle as a function of applied frequency. 2001 Jul 13 19 f (MHz) 10 3 BCcomponents Product specification Professional power metal film resistors MECHANICAL DATA PR01/02/03 Mounting pitch Mass per 100 units TYPE TYPE PR01 PR02 PR03 LEAD MATERIAL MASS (g) PR01 PITCH LEAD STYLE mm straight leads 12.5(1) 4.8 e 5(1) Cu 29 radial taped FeCu 29 cropped and formed 17.8 7 Cu 63 double kink large pitch 17.8 7 FeCu 45 double kink small pitch 12.5 straight leads 15.0(1) Cu 110 FeCu 100 PR02 radial taped Mounting The resistors are suitable for processing on automatic insertion equipment and cutting and bending machines. PR03 Marking The nominal resistance and tolerance are marked on the resistor using four coloured bands in accordance with IEC publication 60062, “Colour codes for fixed resistors”. 5 6(1) 4.8 2 cropped and formed 17.8 7 double kink large pitch 17.8 7 double kink small pitch 15.0 straight leads 23.0(1) 6 9(1) cropped and formed 25.4 10 double kink large pitch 25.4 10 double kink small pitch 20.0 8 Note 1. Recommended minimum value. L1 Outlines The length of the body (L1) 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 60294”). 2 ∅d CCB414 ∅D L2 For dimensions see Table 4. Fig.40 Type with straight leads. Table 4 ∅D MAX. (mm) L1 MAX. (mm) L2 MAX. (mm) ∅d (mm) PR01 2.5 6.5 8.5 0.58 ±0.05 PR02 3.9 10.0 12.0 PR03 5.2 16.7 19.5 TYPE 2001 Jul 13 Straight lead type and relevant physical dimensions: see Fig.40 20 0.8 ±0.03 0.58 ±0.05 0.8 ±0.03 0.58 ±0.05 BCcomponents Product specification Professional power metal film resistors PR01/02/03 ∅D TY PE P ±0.5 h +2 −0 5 +1 −0 M AI N TE N AN C E L 2 min. ∅d P ±3 b +0.1 0 ∅B S CCB022 P Dimensions in mm. For dimensions see Tables 4 and 5. Fig.41 Type with cropped and formed leads. Table 5 Cropped and formed lead type and relevant physical dimensions; see Fig.41 TYPE LEAD STYLE PR01 PR02 PR03 cropped and formed; note 1 ∅d (mm) b (mm) h (mm) P (mm) S MAX. (mm) ∅B MAX. (mm) 17.8 2 1.0 0.6 ±0.05 1.1 8 0.8 ±0.03 1.3 8 0.8 ±0.03 1.3 15 0.6 ±0.05 1.1 8 0.8 ±0.03 1.3 8 0.8 ±0.03 1.3 15 0.6 ±0.05 1.1 8 Note 1. Can be replaced by double kinked versions; see Fig.42. 2001 Jul 13 21 17.8 25.4 2 1.2 3 1.2 2 1.0 2 1.2 3 1.2 2 1.0 BCcomponents Product specification Professional power metal film resistors P1 ±0.5 PR01/02/03 P1 ±0.5 ∅D 8+2 L1 +1 4.5 0 L2 ∅d b1 ∅B ±0.07 S P2 ±3 b2 CCB020 Dimensions in mm. For dimensions see Tables 4 and 6. Fig.42 Type with double kink. Table 6 Double kink lead type and relevant physical dimensions; see Fig.42 PR01 PR02 S MAX. (mm) ∅B (mm) 17.8 17.8 2 0.8 12.5 12.5 2 0.8 17.8 17.8 2 0.8 17.8 17.8 2 1.0 1.65 +0.25/−0.20 15.0 15.0 2 1.0 1.10 +0.25/−0.20 1.45 +0.25/−0.20 25.4 25.4 2 0.8 0.8 ±0.03 1.30 +0.25/−0.20 1.65 +0.25/−0.20 25.4 25.4 2 1.0 0.8 ±0.03 1.30 +0.25/−0.20 2.15 +0.25/−0.20 22.0 20.0 2 1.0 b2 (mm) double kink large pitch 0.58 ±0.05 1.10 +0.25/−0.20 1.45 +0.25/−0.20 double kink small pitch 0.58 ±0.05 1.10 +0.25/−0.20 1.45 +0.25/−0.20 0.58 ±0.05 1.10 +0.25/−0.20 1.45 +0.25/−0.20 0.8 ±0.03 1.30 +0.25/−0.20 1.65 +0.25/−0.20 0.8 ±0.03 1.30 +0.25/−0.20 0.58 ±0.05 double kink large pitch double kink small pitch PR03 P2 (mm) b1 (mm) LEAD STYLE double kink large pitch double kink small pitch 2001 Jul 13 ∅D MAX. (mm) P1 (mm) ∅d (mm) TYPE 22 2.5 3.9 5.2 BCcomponents Product specification Professional power metal film resistors TESTS AND REQUIREMENTS PR01/02/03 In Table 7 the tests and requirements are listed with reference to the relevant clauses of “IEC publications 60115-1 and 60068-2”; 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. Essentially all tests are carried out in accordance with the schedule of “IEC publication 60115-1”, 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. All soldering tests are performed with mildly activated flux. The tests are carried out in accordance with IEC publication 60068-2, “Recommended basic climatic and mechanical robustness testing procedure for electronic components” and under standard atmospheric conditions according to “IEC 60068-1”, subclause 5.3. Table 7 Test procedures and requirements IEC 60115-1 CLAUSE IEC 60068-2 TEST METHOD TEST PROCEDURE REQUIREMENTS 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) 4.5 resistance see Tables 4, 5 and 6 applied voltage (+0/−10%): R < 10 Ω: 0.1 V R − Rnom: max. ±5% 10 Ω ≤ R < 100 Ω: 0.3 V 100 Ω ≤ R < 1 kΩ: 1 V 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; 6 mm from body ∆R/R max.: ±1% + 0.05 Ω 4.29 45 (Xa) component solvent resistance no visual damage 4.17 20 (Ta) solderability isopropyl alcohol or H2O followed by brushing in accordance with “MIL 202 F” 2 s; 235 °C voltage proof on insulation maximum voltage 500 V (RMS) during 1 minute; metal block method no breakdown or flashover 4.7 2001 Jul 13 23 good tinning; no damage BCcomponents Product specification Professional power metal film resistors PR01/02/03 IEC 60115-1 CLAUSE IEC 60068-2 TEST METHOD 4.16 21 (U) 4.16.2 21 (Ua1) tensile all samples load 10 N; 10 s 4.16.3 21 (Ub) bending half number of samples load 5 N; 4 × 90° number of failures: <1 × 10−6 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 or acceleration 10 g; three directions; total 6 hours (3 × 2 hours) no damage ∆R/R max.: ±0.5% + 0.05 Ω 4.19 14 (Na) rapid change of temperature 30 minutes at LCT and 30 minutes at UCT; 5 cycles no visual damage PR01: ∆R/R max.: ±1% + 0.05 Ω PR02: ∆R/R max.: ±1% + 0.05 Ω PR03: ∆R/R max.: ±2% + 0.05 Ω 6 days; 55 °C; 95 to 98% RH Rins min.: 103 MΩ 4.23 TEST PROCEDURE robustness of terminations: number of failures: <1 × 10−6 climatic sequence: 4.23.3 30 (Db) damp heat (accelerated) 1st cycle 4.23.6 30 (Db) damp heat (accelerated) remaining cycles ∆R/R max.: ±3% + 0.1 Ω damp heat (steady state) (IEC) 56 days; 40 °C; 90 to 95% RH; loaded with 0.01 Pn (IEC steps: 4 to 100 V) 4.25.1 endurance (at 70 °C) 1000 hours; loaded with Pn or Vmax; 1.5 hours on and 0.5 hours off 4.8.4.2 temperature coefficient at 20/LCT/20 °C and 20/UCT/20 °C (TC × 10−6/K) 4.24.2 REQUIREMENTS 3 (Ca) Rins min.: 1000 MΩ ∆R/R max.: ±3% + 0.1 Ω ∆R/R max.: ±5% + 0.1 Ω ≤±250 Other tests in accordance with IEC 60115 clauses and IEC 60068 test method 4.17 20 (Tb) solderability (after ageing) 8 hours steam or 16 hours 155 °C; leads immersed 6 mm for 2 ±0.5 s in a solder bath at 235 ±5 °C good tinning (≥95% covered); no damage 4.6.1.1 insulation resistance maximum voltage (DC) after 1 minute; metal block method Rins min.: 104 MΩ see 2nd amendment to IEC 60115-1, Jan. ’87 pulse load see Figs 5, 6, 7, 8, 9 and 10 2001 Jul 13 24