Phoenix Passive Components PRECISION FILM RESISTOR – MRS25 FEATURES • Metal film; • Precision resistors in small outlines; • Low noise; • Non-flammable; • Defined pulse loading capabilities; • High stability and uniformity characteristics; • Several packing and taping configurations; • Different forming styles available; • Minor tolerance is available (0.5%). MARKET SEGMENTS AND APPLICATIONS Industry sector Application segment End-user equipment Electrical testers Controls Power system control Instruments (measuring) Industrial Surface scanners Security Electric fence energizer Control/medical Blood analyzers Automotive Engine Management Electronic Fuel Injection System Amplifiers, TV Consumer Sound & Vision Professional audio equipment TECHNOLOGY A homogeneous film of metal alloy is deposited on a hit grade ceramic body. After a helical groove has been cut in the resistive layer, tinned connecting wires to the end-caps. The resistors are coated with a green non-flammable lacquer that provides electrical, mechanical, and climatic protection. The encapsulation is resistant to all cleaning solvents in accordance with “MIL-STD 202E, method 215” e “IEC 68-2-45”. MRS25 Revision on 2003/03/20     PHOENIX DO BRASIL LTDA. All rights are reserved. Reproduction whole or in part is Prohibited without the written consent of the copyright owner. Page 1 of 10 Phoenix Passive Components QUICK REFERENCE DATA (2) MRS25± 1% (E-24 / E-96 series) DESCRIPTION Cu-lead Resistance range 1Ω to 10MΩ Temperature Coefficient: ≤ ± 50 ppm/°C Maximum dissipation Tamb = 70ºC 0.60W Thermal resistance (Rth) 150 K/W Limiting voltage (DC or RMS) 350V (1) Rated voltage Pn x R Basic specifications IEC 60115-1 and 60115-2 Climatic category (IEC 60068) 55/ 155/ 56 Stability after: ΔR/Rmax.: ±0.5% + 0.05Ω Load: ΔR/Rmax.: ±0.5% + 0.05Ω Climatic tests: ΔR/Rmax.: ±0.1% + 0.05Ω Resistance to soldering heat Short time overload ΔR/Rmax.: ±0.25% + 0.05Ω Note: 1- Maximum rated voltage is the “Limiting voltage”. 2- 0.5% available on request. MRS25 Revision on 2003/03/20     PHOENIX DO BRASIL LTDA. All rights are reserved. Reproduction whole or in part is Prohibited without the written consent of the copyright owner. Page 2 of 10 Phoenix Passive Components MECHANICAL DATA Axial style L2 L1 (0.031) (0.196 ± ± ± ±0.004) (0.040) (0 +0.118/-0) (0 236 ± ±0 019) ± ± Table 1. Mass per Product A L1maxL2max Dmax |B1-B2| φ φ φ φd 100 units 52 +1.5/-0 22.0g (2.047 +0.059/-0) ± 1.2 6.5 7.0 0.58 ± 0.05 2.5 MRS25 (0.256) (0.276) (0.098) (±0.047) (0.023 ±0.002) 26 ± 1.5 16.0g (1.024 ±0.059) Dimensions in mm / (Inches) MOUNTING The resistors are suitable for processing on automatic insertion equipment, cutting and bending machines. A radial taped version economizes space on the PCB. The double kink style offers great advantages for manual insertion improving the mounting stability for the customer. They have a real snap in function to fix the resistor in PCB without weakening the connecting leads. MRS25 Revision on 2003/03/20     PHOENIX DO BRASIL LTDA. All rights are reserved. Reproduction whole or in part is Prohibited without the written consent of the copyright owner. Page 3 of 10 Phoenix Passive Components ELECTRICAL CHARACTERISTICS DERATING The power that the resistor can dissipate depends on the operating temperature Pmax X Tamb 120 100 80 60 40 20 0 -55 0 55 70 110 155 Tamb (ºC) Maximum dissipation (Pmax) in percentage of rated power as a function of the ambient temperature (Tamb) APPLICATION INFORMATION Hot-spot Solder-spot Fig. 1 - Hot spot temperature rise (ΔT) Fig. 2 - Temperature rise (ΔT) at the lead as a function of dissipated power. (soldering point) as a function of dissipated power at various lead lengths after mounting. Note: The maximum permissible hot-spot temperature is 155ºC. MRS25 Revision on 2003/03/20     PHOENIX DO BRASIL LTDA. All rights are reserved. Reproduction whole or in part is Prohibited without the written consent of the copyright owner. Page 4 of 10 Pmax % Prated Phoenix Passive Components PULSE LOADING CAPABILITIES Fig. 3 - Pulse on a regular basis, maximum permissible peak pulse power (^Pmax) as a function of pulse duration (ti). Fig. 4 - Pulse on a regular basis, maximum permissible peak pulse voltage (^Vmax) as a function of pulse duration (ti). MRS25 Revision on 2003/03/20     PHOENIX DO BRASIL LTDA. All rights are reserved. Reproduction whole or in part is Prohibited without the written consent of the copyright owner. Page 5 of 10 Phoenix Passive Components MARKING The nominal resistance and tolerance are marked on the resistor using five colored bands in accordance with IEC publication 60062 “color code for fixed resistors”. There is a sixth red band in order to indicate the temperature coefficient (50 ppm/ºC). Standard values of nominal resistance are taken from the E24/E96 series for resistors with a tolerance of 1%. The values of the E24/E96 series are in accordance with “IEC publication 60063”. ORDERING INFORMATION Table 2. Ordering code indicating resistor type and packaging ORDERING CODE 23xx xxx xxxxx BANDOLIER IN AMMOPACK BANDOLIER ON REEL LEAD ∅ TOL STRAIGHT LEADS TYPE % mm 52 52 26 52 (2.047) (2.047) (1.024) (2.047) 5000units 1000 units 4000 units 5000 units Cu 0.58 MRS25 1 2322 156 2xxxx 2322 156 1xxxx 2306 156 4xxxx 2322 156 3xxxx (Cu 0.023) Dimensions in mm / (Inches) Note: For formed types see “Formed Types Specification” ORDERING CODE • The resistors have a 12 digit ordering code starting with 23. • The subsequent 6 digits indicate the resistor type and packaging see table 2. • The remaining 4 digits indicate the resistance value. -The first 3 digits indicate the resistance value. -The last digit indicates the resistance decade in accordance with table 3. Table 3. Last digit of 12NC RESISTANCE DECADE LAST DIGIT 1 to 9.76Ω 8 9 10 to 97.6Ω 100 to 976Ω 1 1 to 9.76kΩ 2 3 10 to 97.6kΩ 100 to 976kΩ 4 1 to 9.76MΩ 5 6 10MΩ Example: The ordering code for resistor type MRS25 with Cu leads and a value of 1K21 1%, supplied on a bandolier of 1000 units in ammopack, is 2322 156 11212. MRS25 Revision on 2003/03/20     PHOENIX DO BRASIL LTDA. All rights are reserved. Reproduction whole or in part is Prohibited without the written consent of the copyright owner. Page 6 of 10 Phoenix Passive Components NAFTA ORDERING INFORMATION – CROSS REFERENCE NAFTA ORDERING CODES Table 4. Ordering code indicating resistor type and packaging Tol. Resistance NAFTA SPQ Type 12NC Taping % range Part Number units 52 2322 156 1xxxx 5053MCxxxxxF08AF5 1000; ammopack (2.047) 52 1Ω to 10MΩ 2322 156 2xxxx 5053MCxxxxxF18AF5 5000; ammopack (2.047) MRS25 ± 1 52 2322 156 3xxxx 5053MCxxxxxF12AF5 5000; reel (2.047) 26 2306 156 4xxxx 5053MCxxxxxF26M 4000; ammopack 1Ω to 1MΩ (1.024) Dimensions in mm / (Inches) COMPOSITION OF OHMIC VALUE The ohmic value is represented by 5 digits; see table 5. Table 5. Examples of the ohmic value 5 Digits Value (All Other) 1 Ω 1R000 10 Ω 10R00 100R0 100 Ω 1K000 1 KΩ 10 KΩ 10K00 100 KΩ 100K0 1M000 1 MΩ MRS25 Revision on 2003/03/20     PHOENIX DO BRASIL LTDA. All rights are reserved. Reproduction whole or in part is Prohibited without the written consent of the copyright owner. Page 7 of 10 Phoenix Passive Components PACKAGING Bandolier in ammopack Table 6. Type Quantity M N P Bandolier width 78 98 260 5000 (3.071) (3.858) (10.236) 52 +1.5/-0 MRS25 (2.047 +0.059/-0) 82 28 262 1000 (3.228) (1.102) (10.315) Dimensions in mm / (inches) Bandolier in Reel P N M Table 7. Type Quantity M N P Q V R Bandolier Width 92 311 311 305 75 86 52 +1.5/-0 MRS25 5000 (3.622) (12.244) (12.244) (12.008) (2.953) (3.386) (2.047 +0.059/-0) Dimensions in mm / (Inches) MRS25 Revision on 2003/03/20     PHOENIX DO BRASIL LTDA. All rights are reserved. Reproduction whole or in part is Prohibited without the written consent of the copyright owner. Page 8 of 10 Phoenix Passive Components TESTS AND REQUERIMENTS 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 IEA and IEAJ. The tests are carried out in accordance with IEC publication 60068, “Recommended basic climatic and mechanical robustness testing procedure for electronic Components and under standard atmospheric conditions according to “IEC 60068-1”. In table 8 the tests and requirements are listed with reference to the relevant clauses of “IEC publications 60115-1 and 60068, a short description of the tests 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 activate Table 8. Test procedures and requirements. IEC IEC 60068-2 60115-1 TESTS PROCEDURE REQUEREMENTS TEST CLAUSE METHOD 4.4.1 Visual examination No holes; clean surface; no damage 4.4.2 Dimensions (outline) Gauge (mm) Table 1 4.5 Resistance Applied voltage (+0/-10%): R - Rnom: max.: ± 1% R<10Ω: 0.1V 10Ω < R < 100Ω: 0.3V 100Ω < R <1 kΩ : 1V 1kΩ < R < 10 kΩ:3V 10 kΩ < R < 100 kΩ: 10V 100 kΩ < R < 1MΩ: 25V R = 1MΩ: 50V 4.6.1.1 Insulation resistance Voltage (DC) after 1 minute, 4 R min.: 10 MΩ ins metal block method: 500V 4.7 Voltage proof on Voltage (RMS) during 1minute, No breakdown insulation metal block method: 700V. 4.8.4.2 Temperature At 20/LCT/20°C ≤± 50 ppm/ºC coefficient (TC x ppm/ºC) 4.12 Noise “ÏEC publication 60195 ”(measured with Quantech- equipment): R≤1MΩ Max. 0.1μV/V R>1MΩ Max. 1.5μV/V 4.13 Short time overload Room temperature; P=6.25xPn; 5s on 45s off, 10 ΔR/R max. ± 0.25% + 0.05Ω cycles (V≤2xVmax.) 4.16 U Robustness of terminations: -6 4.16.2 Ua Tensile other half of Load 10N; 10s Number of failures <10x10 samples o -6 4.16.3 Ub Bending half number Load 5N; 4 x 90 Number of failures < 10x10 of samples 4.16.4 Uc Torsion other half of 3 x 360° in opposite directions no damage samples ΔR/R max. ± 0.1% + 0.05Ω MRS25 Revision on 2003/03/20     PHOENIX DO BRASIL LTDA. All rights are reserved. Reproduction whole or in part is Prohibited without the written consent of the copyright owner. Page 9 of 10 Phoenix Passive Components IEC IEC 60068-2 60115-1 TESTS PROCEDURE REQUEREMENTS TEST CLAUSE METHOD 20(Ta) Solderability o 2s; 235 C Good tinning, no damage 4.17 20(Tb) Solderability 8 hours steam or 16 hours Good tinning ( after aging ) 155°C; leads immersed 6mm ( ≥ 95% covered); for 2±0.5s in a solder bath at no damage o 235±5 C 4.18 Tb Resistance to Thermal shock 3s; 350°C; 6mm ΔR/R max. ± 0,1% + 0.05Ω soldering heat from body: 4.19 (14)Na Rapid change of 30 minutes at LCT and 30 ΔR/R max. ± 0.1% + 0.05Ω temperature minutes at UCT; 5 cycles: 4.22 Fc Vibration Frequency 10 to 500Hz; displacement 1.5 mm or no damage acceleration 10g; 3directions; ΔR/R max. ± 0.1% + 0.05Ω total 6 hours (3 x 2 hours) 3 4.23 Climatic sequence: R min. 10 MΩ isol 4.23.2 27(Ba) Endurance at upper 1000 hours; no load category temperature 4.23.3 30(D) Damp heat 6 days; 55ºC; 95 a 98% R.H.: (accelerated) 1 cycle 4.23.6 30(D) Damp heat ΔR/R max. : ± 0.5 %+0.05Ω. (accelerated) remaining cycles 4.24.2 3(Ca) Damp heat (steady 56 days; 40°C; 90 to 95% RH : 3 R min. 10 MΩ isol state) (IEC) loaded with 0.01 Pn ΔR/R max. ± 0.5%+ 0.05Ω (IEC steps: 4 to 100V) : 4.25.1 1000 hours; loaded with Pn or Endurance (at 70°C) Vmax; 1.5 hours on and 0.5 ΔR/R ma. ± 0.5%+ 0.05Ω hours off: 4.29 45(Xa) Component solvent Isopropyl alcohol or H O 2 resistance followed by brushing in No visual damage accordance with ”MIL 202 F” nd See 2 amendment to “ÏEC Pulse load See Figs. 3 and 4 60115-1”. MRS25 Revision on 2003/03/20     PHOENIX DO BRASIL LTDA. All rights are reserved. Reproduction whole or in part is Prohibited without the written consent of the copyright owner. Page 10 of 10