BCcomponents DATA SHEET SFR16S/25/25H Standard metal film resistors Product specification Supersedes data of 17th April 2002 File under BCcomponents, BC08 2002 Dec 02 BCcomponents Product specification Standard metal film resistors SFR16S/25/25H FEATURES DESCRIPTION · Low cost 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 leads of electrolytic copper are welded to the end-caps. · Low noise · Small size (SFR16S). APPLICATIONS · General purpose resistors. type SFR16S; light-green for type SFR25 and red-brown for type SFR25H) which provides electrical, mechanical and climatic protection. The encapsulation is resistant to all cleaning solvents, in accordance with “MIL-STD-202E, method 215”, and “IEC 60 068-2045”. The resistors are coated with a coloured lacquer (light-blue for QUICK REFERENCE DATA DESCRIPTION Resistance range VALUE SFR16S SFR25 ±5%; 1 W to 3 MW ±5%; 0.22 W to 10 MW ±1%; 4.99 W to 3 MW ±1%; 1 W to 10 MW jumper (0 W) SFR25H ±1%, E24/E96 series; ±5%, E24 series Resistance tolerance Temperature coefficient: £ ±250 ´ 10-6/K £ ±100 ´ 10-6/K £ ±100 ´ 10-6/K £ ±100 ´ 10-6/K £ ±100 ´ 10-6/K £±100 ´ 10-6/K 100 kW < R £ 1 MW £ ±250 ´ 10-6/K £ ±100 ´ 10-6/K £ ±100 ´ 10-6/K R > 1 MW £ ±250 ´ 10-6/K £ ±250 ´ 10-6/K £ ±250 ´ 10-6/K 0.5 W 0.4 W 0.5 W 170 K/W 200 K/W 150 K/W 200 V 250 V 350 V R < 68 kW max. 0.1 m V/V max. 0.1 m V/V max. 0.1 m V/V 68 kW £ R £ 100 kW max. 0.5 m V/V max. 0.1 m V/V max. 0.1 m V/V 100 kW £ R £ 1 MW max. 1.5 m V/V max. 0.1 m V/V max. 0.1 m V/V R > 1 MW max. 1.5 m V/V max. 1.5 m V/V max. 1.5 m V/V R < 4.7 W 4.7 W £ R £ 100 kW Absolute maximum dissipation at Tamb = 70 °C Thermal resistance, Rth Maximum permissible voltage Noise: Basic specifications IEC 60 115-1 and 60 115-2 Climatic category (IEC 60 068) 55/155/56 Stability, DR/R max., after: load: R £ 1 MW ±1% + 0.05 W ±1% + 0.05 W ±1% + 0.05 W R > 1 MW ±1% + 0.05 W ±1% + 0.05 W ±2% + 0.1 W R £ 1 MW ±1% + 0.05 W ±1% + 0.05 W ±1% + 0.05 W R > 1 MW ±1% + 0.05 W ±1% + 0.05 W ±2% + 0.1 W soldering ±0.25% + 0.05 W ±0.25% + 0.05 W ±0.25% + 0.05 W short time overload ±0.25% + 0.05 W ±0.25% + 0.05 W ±1% + 0.05 W climatic tests: 2002 Dec 02 2 BCcomponents Product specification Standard metal film resistors SFR16S/25/25H ORDERING INFORMATION Table 1 12NC ordering code indicating resistor type and packaging ORDERING CODE 23.. ... ..... TYPE BANDOLIER IN AMMOPACK TOL. RADIAL TAPED SFR16S SFR25 SFR25H BANDOLIER ON REEL STRAIGHT LEADS STRAIGHT LEADS 4 000 units 1 000 units 5 000 units 5 000 units ±5% - ..22 187 73... ..22 187 53... ..06 187 23... ±1% - - ..06 187 3... ..06 187 1.... jumper(1) - - - ±5% ..06 184 03... ..22 181 53... ..22 181 43... ..22 181 63... ±1% - - ..22 188 2... ..06 181 8.... jumper(1) - - ..22 181 90019 ..06 181 90011 ±5% - ..22 186 16... ..22 186 76... ..06 186 63... ±1% - - ..22 186 3.... ..06 186 8.... Last digit for ±5% tolerance Table 3 ..06 187 90013 Note 1. The jumper has a maximum resistance Rmax = 10 mW at 5 A. Composition of the 12NC · The resistors have a 12-digit ordering code starting with 23 · The subsequent 7 digits indicate the resistor type and packaging; see Table 1. · The remaining digits indicate the resistance value: – The first 2 or 3 digits indicate the resistance value. – The last digit indicates the resistance decade in accordance with Tables 2 or 3. Table 2 RESISTANCE DECADE LAST DIGIT 0.10 to 0.91 W Last digit for ±1% tolerance RESISTANCE DECADE LAST DIGIT 7 1 to 9.76 W 8 1 to 9.1 W 8 10 to 97.6 W 9 10 to 91 W 9 100 to 976 W 1 100 to 910 W 1 1 to 9.76 kW 2 1 to 9.1 kW 2 10 to 97.6 kW 3 10 to 91 kW 3 100 to 976 kW 4 100 to 910 kW 4 1 to 9.76 MW 5 1 to 9.1 MW 5 ³10 MW 6 ³10 MW 6 ORDERING EXAMPLE: 12NC The ordering code of a SFR25 resistor, value 5 600 W ±5%, taped on a bandolier of 5 000 units in ammopack is: 2322 181 43562. 2002 Dec 02 3 BCcomponents Product specification Standard metal film resistors SFR16S/25/25H 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 60 063”. Limiting values LIMITING VOLTAGE(1) (V) LIMITING POWER (W) SFR16S 200 0.5 SFR25 250 0.4 SFR25H 350 0.5 TYPE Note 1. The maximum voltage that may be continuously applied to the resistor element, see “IEC publication 60 115-1”. The maximum permissible hot-spot temperature is 155 °C. DERATING The power that the resistor can dissipate depends on the operating temperature; see Fig.1. MLB650 100 Pmax (%Prated ) 75 50 25 R 1 MΩ 0 40 60 70 80 100 120 140 o Tamb ( C) 155 Fig.1 Maximum dissipation (Pmax) in percentage of rated power as a function of the ambient temperature (Tamb). 2002 Dec 02 4 BCcomponents Product specification Standard metal film resistors SFR16S/25/25H PULSE LOADING CAPABILITIES 10 MEA685 - 1 3 P max (W) 10 2 t p /t i = 1000 500 200 100 50 20 10 10 5 2 1 10 –1 10 –6 10 –5 10 –4 10 –3 10 –2 10 –1 t i (s) 1 SFR16S Fig.2 ˆ Pulse on a regular basis; maximum permissible peak pulse power ( P max) as a function of pulse duration (ti). MEA689 600 Vmax (V) 500 400 300 200 100 0 10 6 10 5 10 4 10 3 10 2 10 1 SFR16S Fig.3 2002 Dec 02 Pulse on a regular basis; maximum permissible peak pulse voltage ( Vˆmax) as a function of pulse duration (ti). 5 t i (s) 1 BCcomponents Product specification Standard metal film resistors 10 SFR16S/25/25H MLB389 3 Pmax (W) 10 2 t p /t i = 1000 500 200 100 50 20 10 10 5 1 2 10 1 10 6 10 5 10 4 10 3 10 2 10 1 1 t i (s) SFR25 Fig.4 ˆ Pulse on a regular basis; maximum permissible peak pulse power ( P max) as a function of pulse duration (ti). MEA678 600 V max (V) 500 400 300 200 100 0 10 6 10 5 10 4 10 3 10 2 10 1 SFR25 Fig.5 2002 Dec 02 Pulse on a regular basis; maximum permissible peak pulse voltage ( Vˆmax) as a function of pulse duration (ti). 6 t i (s) 1 BCcomponents Product specification Standard metal film resistors 10 SFR16S/25/25H MLB653 3 Pmax (W) t p /t i = 1000 500 10 2 200 100 50 20 10 10 5 2 1 10 1 10 6 10 5 10 4 10 3 10 2 10 1 1 t i (s) SFR25H Fig.6 ˆ Pulse on a regular basis; maximum permissible peak pulse power ( P max) as a function of pulse duration (ti). JWB289 1200 handbook, full pagewidth Vmax (V) 800 400 0 10 6 10 5 10 4 10 3 10 2 10 1 SFR25H Fig.7 2002 Dec 02 Pulse on a regular basis; maximum permissible peak pulse voltage ( Vˆmax) as a function of pulse duration (ti). 7 t i (s) 1 BCcomponents Product specification Standard metal film resistors SFR16S/25/25H Application information MLB652 MEA591 100 ∆T (K) 100 SFR25 80 ∆T (K) 60 50 SFR25H 40 20 0 0 0.2 0.4 0.6 P (W) 0 0.8 0 0.1 0.2 0.3 0.4 0.5 P (W) SFR16S SFR25/SFR25H Fig.8 2002 Dec 02 Hot-spot temperature rise (DT) as a function of dissipated power. Fig.9 8 Hot-spot temperature rise (DT) as a function of dissipated power. BCcomponents Product specification Standard metal film resistors SFR16S/25/25H MECHANICAL DATA Mass per 100 units MASS (g) TYPE SFR16S 11.5 SFR25 21.0 SFR25H 22.0 L1 ∅d Marking CCB414 The nominal resistance and tolerance are marked on the resistor using four or five coloured bands in accordance with IEC publication 60 062 “Colour codes for fixed resistors”. ∅D L2 Outlines For dimensions see Table 4. 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 60 294”). Table 4 Fig.10 Outline. Resistor type and relevant physical dimensions; see Fig.10 TYPE ÆD MAX. (mm) L1 MAX. (mm) L2 MAX. (mm) Æd (mm) SFR16S 1.9 - 3.4 0.45 ±0.05 SFR25 2.5 6.5 7.0 0.58 ±0.05 SFR25H 2.5 6.5 7.0 0.58 ±0.05 2002 Dec 02 9 The tests are carried out in accordance with IEC publication 6 0068-2, “Recommended basic climatic and mechanical robustness testing procedure for electronic components” and under standard atmospheric conditions according to “IEC 60 068-1”, subclause 5.3. Table 5 Test procedures and requirements IEC 60 115-1 CLAUSE IEC 60 068-2 TEST METHOD REQUIREMENTS TEST PROCEDURE 21 (U) 4.16.2 21 (Ua1) tensile all samples Æ0.45 mm, load 5 N; 10 s 4.16.3 21 (Ub) bending half number of samples Æ0.45 mm, load 2.5 N; 4 ´ 90° torsion other half of samples 3 ´ 360° in opposite directions SFR16S SFR25 SFR25H robustness of terminations: 10 4.16 RESISTANCE RANGE number of failures <10 ´ 10-6 BCcomponents Essentially all tests are carried out in accordance with the schedule of “IEC publication 60 115-1”, category 55/155/56 (rated temperature range -55 °C to +155 °C; damp heat, long term, 56 days). The testing also covers the requirements specified by EIA and EIAJ. In Table 5 the tests and requirements are listed with reference to the relevant clauses of “IEC publications 60 115-1 and 60 068-2” ; 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. Standard metal film resistors 2002 Dec 02 TESTS AND REQUIREMENTS Æ0.58 mm, load 10 N; 10 s number of failures <10 ´ 10-6 Æ0.58 mm, load 5 N; 4 ´ 90° 4.16.4 21 (Uc) no damage DR/R max.: ±0.25% + 0.05 W 4.17 20 (Ta) solderability 2 s; 235 °C; flux 600 4.18 20 (Tb) resistance to soldering heat 3.5 s; 350 °C; solder bath method DR/R max.: ±0.25% + 0.05 W 4.19 14 (Na) rapid change of temperature 30 minutes at -55 °C and 30 minutes at +155 °C; 5 cycles DR/R max.: ±0.25% + 0.05 W 4.20 29 (Eb) bump 3 ´ 1 500 bumps in 3 directions; 40 g no damage DR/R max.: ±0.25% + 0.05 W 4.22 6 (Fc) vibration frequency 10 to 500 Hz; displacement 1.5 mm or acceleration 10 g; 3 directions; total 6 hours (3 ´ 2 hours) no damage DR/R max.: ±0.25% + 0.05 W good tinning; no damage Product specification SFR16S/25/25H 4.23 REQUIREMENTS TEST PROCEDURE dry heat 16 hours; 155 °C 4.23.3 30 (Db) damp heat (accelerated) 1st cycle 24 hours; 55 °C; 90 to 100% RH 4.23.4 1 (Aa) cold 2 hours; -55 °C 4.23.5 13 (M) low air pressure 2 hours; 8.5 kPa; 15 to 35 °C 4.23.6 30 (Db) damp heat (accelerated) remaining cycles 5 days; 55 °C; 95 to 100% RH 3 (Ca) R £ 1 MW R > 1 MW DR/R max.: ±1% + 0.05 W DR/R max.: ±1% + 0.05 W DR/R max.: ±2% + 0.1 W 56 days; 40 °C; 90 to 95% RH; dissipation 0.01 Pn endurance 1 000 hours at 70 °C; Pn or Vmax R £ 1 MW between -55 °C and +155 °C (TC ´ 10-6/K) R < 4.7 W £ ±250 £ ±100 £ ±100 R £ 100 kW £ ±100 £ ±100 £ ±100 R £ 1 MW £ ±250 £ ±100 £ ±100 R > 1 MW £ ±250 £ ±250 £ ±250 temperature coefficient voltage proof on insulation 400 V (RMS) (SFR16S) or 600 V (RMS) (SFR25 and SFR25H); during 1 minute; V-block method 4.12 noise “IEC publication 60 195” R > 1 MW DR/R max.: ±1% + 0.05 W DR/R max.: ±1% + 0.05 W DR/R max.: ±2% + 0.1 W no breakdown R < 68 kW max. 0.1 m V/V max. 0.1 m V/V max. 0.1 m V/V R £ 100 kW max. 0.5 m V/V max. 0.1 m V/V max. 0.1 m V/V R £ 1 MW max. 1.5 m V/V max. 0.1 m V/V max. 0.1 m V/V R > 1 MW max. 1.5 m V/V max. 1.5 m V/V max. 1.5 m V/V Rins min.: 1 000 MW Product specification insulation resistance 500 V (DC) during 1 minute; V-block method Rins min.: 1 000 MW DR/R max.: ±1% + 0.05 W SFR16S/25/25H 4.7 4.6.1.1 SFR25H damp heat (steady state) 11 4.8.4 SFR25 Rins min.: 1 000 MW 2 (Ba) 4.25.1 SFR16S climatic sequence: 4.23.2 4.24.2 RESISTANCE RANGE BCcomponents IEC 60 068-2 TEST METHOD Standard metal film resistors 2002 Dec 02 IEC 60 115-1 CLAUSE 4.13 see 2nd amendment to “IEC 60 115-1”, Jan. ’87 REQUIREMENTS TEST PROCEDURE short time overload room temperature; P = 6.25 ´ Pn (SFR25) or 6.25 ´ 0.25 W (SFR16S); 5 s on, 45 s off (V £ 2 ´ Vmax); 10 cycles intermittent overload in accordance with “JIS-C5202 5.8” 16 ´ 0.16 W; 1 s on and 25 s off; 10 000 ±200 cycles; Vmax = 600 V pulse load RESISTANCE RANGE SFR16S SFR25 DR/R max.: ±0.25% + 0.05 W DR/R max.: ±0.75% + 0.05 W SFR25H DR/R max.: ±1% + 0.05 W - see Figs 2, 3, 4, 5, 6 and 7 - BCcomponents IEC 60 068-2 TEST METHOD Standard metal film resistors 2002 Dec 02 IEC 60 115-1 CLAUSE 12 Product specification SFR16S/25/25H