RCD BW2F-102-JB

RoHS FUSIBLE FILM RESISTORS, RESISTORS�CAPACITORS�COILS�DELAY LINES GENERAL PURPOSE 1/8 WATT to 3 WATT Term.W is RoHS compliant BW/MBW SERIES & 260°C BW Series - Axial Lead MBW Series - SM MELF compatible � Industry’s widest selection of fusible film resistors - Low Cost Circuit Protection! 1/8W to 3W, .1Ω to 24KΩ, 1% to 5%, leaded & surface mount RCD pioneered fusible film resistors in the early 1970’s as a TM � Low cost, quick delivery (available on SWIFT program) low cost approach to circuit protection in case of overload or � Flameproof (UL94V0), surface-mount versions available component failure. The component is designed to act as a conventional resistor under normal operating conditions, but OPTIONS open quickly under fault conditions. Series BW meets the � Modified fusing characteristics (fast blow, slow blow, etc.) requirements of EIA RS-325 and can be useful in eliminating � Increased pulse capability (Option P) circuit board damage and fire hazards. Standard fusing � Dozens of additional options are available... characteristics can be altered to customer requirements. Mil-spec screening/burn-in, special marking, non-standard ← H →← L → D ← A → ↓ ↓ values, custom lead forming, increased power or voltage, etc. d ↓ BW MBW B Customized components are an RCD specialty! ↑ Inch [mm] ↑ ↑ C Dimensions BW Series (Axial Lead) Dimensions MBW (MELF) Wattage Resistance Voltage L D d H A B C RCD Type 1 1 1, 2 Rating Range Rating ± .032 [.8] ± .024 [.6] ±] .003 [.07 (Min.) ± .012[.3] (Max.) (Min.) BW W1/8F 11 /8 ΩtV o 10K2] 00.] 145 [3.7.] 067 [1.7.] 020 [.51A .00 [25 N/ BF W1/4F,W MBW1/4 11 /4 0. ΩtV o 10K20 00 .] 25[0 6.4 .] 09[2 2.3 .] 02[2 .551] .0[] 26.] 256 [6.5.] 118 [3 .040 [1 BF W1/2F,W MBW1/2 11 /2 0. ΩtV o 24K24 50 .] 35[8 9.0 .] 12[5 3.3 .] 02[2 .61] .0[] 26.] 374 [9.5.] 154 [3.9 .060 [1.5 BW W1/2FS, MBW1/2FS12 /2 0. ΩtV o 20K20 50 .] 25[0 6.4 .] 09[2 2.3 .] 02[2 .551] .0[] 26.] 256 [6.5.] 118 [3 .040 [1 BW W1F, MBW1FS 11 .0 0. ΩtV o 24K35 00 .] 37[5 9.5 .] 13[6 3.4 .] 02[2 .651] .0[] 26.] 374 [9.5.] 154 [3.9 .060 [1.5 BW W2F, MBW2F 21 .0 0. ΩtV o 24K30 00 .] 45[2 11.4 .] 16[] 4.1 .2 031[.81] .0[] 26.] 441[ 11.2.] 197 [5 .080 [2 BW W3F, MBW3F 31 .0 0. ΩtV o 24K32 50.] 60±.06[2 15.2±1.6.] 22±.03[] 5.6±.8.7 031[.81] .3[] 35.] 598 [15.2.] 220 [5.6 .080 [2 1 2 1/2 Expanded range available Maximum working voltage is determined by E = (PR) , E should not exceed value listed. FUSING CHARACTERISTICS 60 50 40 30 20 10 0 5 10 15 20 30 40 50 60 80 100 APPLIED POWER (WATTS) APPLICATION NOTES: TYPICAL PERFORMANCE 1. Fault level must be suitable to safely open the resistor quickly, especially surface mount TC emperature Coefficient 200ppm/° MBW models. If insufficent, the resistor may reach elevated temp. For this reason, the L% oad Life Stability 5 fusing overload must be relatively large compared to rated W, 20 to 50x is common for OC perating Temp. Range -55 to +165° most axial-lead applications, 40 to 100x for most SM circuits. SM fusing times vary due to PC ower Derating 0.71%/°C >25° mounting geometry/materials, so each application needs to be evaluated by user. The fault D) ielectric Strength 500V (300V BW1/8F condition must be at least equal to the minimum W indicated in each of the above curves, and preferably double for SM applications. Fusing may still occur at W levels below the P/N DESIGNATION: BW1F - 101 J T W levels graphed above but not consistently (fast-blow models available). Don’t exceed volt rating or 200x W rating, whichever is less (increased levels available). RCD Type 2. For customized models, complete RCD’s Fuse Questionnaire or advise the desired fusing Options (leave blank if standard) wattage or current, min.& max. blow time, continuous wattage, ambient temp., pulse Resis.Code 1%: 3 signif. figures & multiplier, conditions, physical constraints, voltage to be interrupted, frequency, etc. (R100=.1Ω,1R00=1Ω,10R0=10Ω,1000=100Ω, etc.) 3. Maintain clearance from any heat-sensitive or flammable materials. Resis.Code 2%-10%: 2 signif. figures & multiplier, (R10=0.1Ω, 1R0=1Ω, 100=10Ω, 101=100Ω, etc.) 4. Fusing times vary depending on resistance value. Typical fusing times are given above Tolerance: J=5% (std.) G=2%, F=1% for 1Ω - 3.9K. Low values tend to fuse slower. Consult factory for assistance. Packaging: B=Bulk, T=Tape & Reel 5. Residual resis. is ≥50x initial value after fusing at 20x rated W (30x for BW1/8F & MBW) Termination: W = Lead-free, Q = Tin/Lead 6. Verify selection by evaluating under the full range of fault conditions. Place resistors (leave blank if either acceptable) inside a protective case when testing. - - - - RCD Components Inc, 520 E.Industrial Park Dr, Manchester, NH, USA 03109 rcdcomponents.com Tel: 603 669 0054 Fax: 603 669 5455 Email:sales@rcdcomponents.com FA037D Sale of this product is in accordance with GF-061. Specifications subject to change without notice. 81 FUSING TIME (SECONDS, TYP.) 1/8F 1/4F 1/2F, FS 1F, 1FS 2F 3F ↓ ↑