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Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
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Technical content
features
- Semi-precision metal film resistors
- The discharge path resistor is recognized by UL 1676 and c-UL (CAS-C22.2 No.1-M94). (File No. E159326) (RK only)
- Meets requirements of MIL-R-22684
- Suitable for automatic machine insertion
- MFS two times the power rating of the standard body type
- Marking: Blue-gray body color with color-coded bands
- Products with lead-free terminations meet EU RoHS and China RoHS requirements MF, MFS, RK general purpose metal film leaded resistor dimensions and construction Ceramic Core d D Marking Resistive Film Insulation Coating Trimming Line End Cap Lead Wire L l C L (ref.) MF1/4 .248±.02 (6.3±0.5) .280 (7.1) .091±.012 (2.3±0.3) .024 (0.6) 1.18±.118 (30.0±3.0) .024 (0.6) .138±.016 (3.5±0.4) .437 (11.1) .374±.04 (9.5±1.0)MF1/2 Type C (max.) D d (nom.) l Dimensions inches(mm) 1/4: T26, T52, VT, VTP, VTE, MT, M, U, M10, M25 1/2: T26, T52, VTP, VTE, M12.5, M15 1: T521
ordering information
+2%: 2 signifi- cant figures + 1 multiplier +0.5%,+1%: 3 significant figures + 1 multiplier “R” indicates decimal on value <100Ω 1/4: 0.25W 1/2: 0.50W 1: 1W C: SnCu B: ±0.1% C: ±0.25% D: ±0.5% F: ±1% G:±2% J: ±5% MF 1/4 C Termination MaterialType Power Rating Nominal Resistance ToleranceTaping and Forming New Part # T52 R20 A: Ammo R: Reel Packaging R J For further information on packaging, please refer to Appendix C. E: ±25 C: ±50 D: ±100 L: ±200 G:±250 B: ±350 T.C.R. L MFS1/4 .126±.008 (3.2±0.2) .133 (3.4) .018 (0.45) .024 (0.6) .091±.012 (2.3±0.3) .280 (7.1) .248±.02 (6.3±0.5)MFS1/2 .066+.007 -.004 (1.7+0.2)-0.1 .031 (0.8) 1.50±.118 (38.0±3.0) 1.50±.118 (38.0±3.0) .217±.02 (5.5±0.5) .721 (18.3) .610±.02 (15.5±0.5)MF1 EU RK1/4 .248±.02 (6.3±0.5) .280 (7.1) .091±.012 (2.3±0.3) .024 (0.6) .031 (0.8) .138±.016 (3.5±0.4) .437 (11.1) .374±.04 (9.5±1.0)RK1/2 .031 (0.8) .217±.02 (5.5±0.5) .720 (18.3) .610±.04 (15.5±1.0)RK1 0.94 min. (24.0 min.) Absolute Maximum Overload Voltage Absolute Maximum Working Voltage Part Designation Power Rating @ 70°C applications and ratings Minimum Dielectric Withstanding Voltage T.C.R. (ppm/°C) Resistance Range (Ω) (B±0.1%) E-96 (C±0.25%) E-96 (D±0.5%) E-24 E-96 (F±1.0%) E-24 E-96 Operating Temperature Range(G±2.0%) E-24 (J±5.0%) E-24 MFS1/4C MFS1/4D 0.25W 49.9 - 562k10 - 1MD: ±100 C: ±50 300V — —— — 250V 300V MFS1/4L 2.2 - 2.2ML: ±200 -55°C to +155°C 99KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, P A 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.1/13/09 resistors Derating Curve% Rated Power 100 -60 -40 0 406 08 01 001 60 Ambient Temperature (°C) -55 120 155 -20 140 Surface Temperature RiseTemperature Rise (°C) 02 55 07 5 % Rated Power 100 MF1/2 MF1 MFS1/2,MF1/4, MF1/2 (+2%&+5%) MFS1/4 MF1/4
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100 KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, P A 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.1/09/09 resistors MF, MFS, RK general purpose metal film leaded resistor Performance Characteristics environmental applications PMS 300 neg. Black neg. Absolute Maximum Overload Voltage Absolute Maximum Working Voltage Part Designation Power Rating @ 70°C applications and ratings Minimum Dielectric Withstanding Voltage MF1/4C MF1/4D MF1/4E MF1/2D MF1/2C MF1/2E MF1D MF1C MF1E 0.25W 0.50W 24.3Ω- 750K 24.3 - 1.0M10- 2.21M 30.1 - 1.0M 10 - 5.05M 47.5 - 2.0M 10Ω - 5.11M 47.5 - 4.64M 47.5 - 5.11M 1.0 - 6.81M 47.5 - 2.0M 10 - 4.99M 10 - 5.11M 30.1 - 1.0M 10 - 2.21M30.1 - 750K 30.1 - 1.0M 47.5Ω - 1.0M 47.5 - 2.49M E: ±25 D: ±100 C: ±50 E: ±25 C: ±50 D: ±100 E: ±25 C: ±50 D: ±100 700V 500V 250V 350V 500V 700V T.C.R. (ppm/°C) Resistance Range (Ω) (B±0.1%) E-96 (C±0.25%) E-96 (D±0.5%) E-24 E-96 (F±1.0%) E-24 E-96 Operating Temperature Range -55°C to +155°C (G±2.0%) E-24 (J±5.0%) E-24 MF1/4L 1.0 - 10L: ±200 0.51 - 10 30.1 - 750K 30.1 - 1.0M ——— 350V 700V700V MFS1/2D MFS1/2C 10 - 1M 10 - 2.21M—— C: ±50 D: ±100500V0.50W 350V 700V 10 - 2.2M 0.20 - 2.2M MFS1/2L 2.2 - 2.2ML: ±200 1.0 - 3.01M RK1/2D 0.50W 5.11M - 33M ——— L: ±200 L: ±200 D: ±100 — 3.3M - 33M 3.3M - 33M 700V 1000V 500V 700V 0.25W 500V 500V 700V 6.2M - 33M 6.2M - 33M RK1/4L — 100k - 25M——B: ±350 100k - 33M 100k - 33MRK1/4B RK1/2L RK1BC 1W 100k - 51M G: ±250 B: ±350 100k - 100M100k - 100M1000V 1500V1000V 0.50W 350V 700V700V — — 1M - 12M — 100k - 35M——B: ±350 100k - 51M 100k - 51MRK1/2B RK1/2G* * Discharge path resistor Parameter Requirement ∆ R ±(% + 0.05Ω) Limit Typical Test Method Resistance T.C.R. 25°C Room temperature, +100°C Within specified tolerance Within specified T.C.R. Overload (Short Time) Rated voltage x 2.5 or max. overload voltage for 5 seconds, whichever is less; MFS1/2: Rated voltage x 2 or max. overload voltage for 5 seconds, whichever is less MF: ±0.5% MF: ±0.3% Resistance to Solder Heat 260°C ± 5°C, 10 seconds ± 1 second or 350°C ± 10°C, 3.5 seconds ± 0.5 second MFS: ±0.75%; MF1/4, Dielectric Withstanding Voltage 1 minuteNo breakdown — Insulation Resistance 100V, 1 minuteNot less than 10,000MΩ — Rapid Change of Temperature -55°C (30 minutes), +155°C (30 minutes), 5 cycles RK,MF: ±1%; RK1/2G: ±5%MF: ±0.3%; RK: ±0.5%, RK1/2G: ±1% Moisture Resistance 40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle MFS1/2, MF1/2: ±1% MFS1/4: ±1%; MF1/4, Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle MFS1/2, MF1/2: ±1% MFS1/4: ±1%; MF1/4, Resistance to Solvent The resistor shall be immersed for 5 seconds in IPA No abnormality in appearance. Marking shall be easily legible Impulse Discharge from 1000pF capacitor 50 pulses. Internal 2.5 seconds. Charge voltage: 1.25kV (RK1/4), 2.5kV (RK1/2) and 6kV (RK1) No such abnormalities as short-circuit, burnout, breakdown, etc.