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BW1/2FSP-121JBQ PDF预览

BW1/2FSP-121JBQ

更新时间: 2024-11-13 03:50:31
品牌 Logo 应用领域
RCD /
页数 文件大小 规格书
1页 65K
描述
Fixed Resistor, 0.5W, 120ohm, 250V, 5% +/-Tol, 200ppm/Cel,

BW1/2FSP-121JBQ 数据手册

  
FUSIBLE FILM RESISTORS,  
GENERAL PURPOSE 1/8 WATT to 3 WATT  
RESISTORSCAPACITORSCOILSDELAY LINES  
Term.W is  
RoHS  
compliant  
& 260°C  
compatible  
BW/MBW SERIES  
RoHS  
BW Series - Axial Lead  
MBW Series - SM MELF  
Industry’s widest selection of fusible film resistors -  
1/8W to 3W, .1to 24KΩ, 1% to 5%, leaded & surface mount  
Low cost, quick delivery (available on SWIFTTM program)  
Flameproof (UL94V0), surface-mount versions available  
Low Cost Circuit Protection!  
RCD pioneered fusible film resistors in the early 1970’s as a  
low cost approach to circuit protection in case of overload or  
component failure. The component is designed to act as a  
conventional resistor under normal operating conditions, but  
open quickly under fault conditions. Series BW meets the  
requirements of EIA RS-325 and can be useful in eliminating  
circuit board damage and fire hazards. Standard fusing  
characteristics can be altered to customer requirements.  
OPTIONS  
Modified fusing characteristics (fast blow, slow blow, etc.)  
Increased pulse capability (Option P)  
Dozens of additional options are available...  
Mil-spec screening/burn-in, special marking, non-standard  
values, custom lead forming, increased power or voltage, etc.  
Customized components are an RCD specialty!  
D  
H →← L →  
A →  
MBW  
C
d  
BW  
B
Inch [mm]  
Dimensions BW Series (Axial Lead)  
Dimensions MBW (MELF)  
Wattage Resistance  
Voltage  
L
D
d
H
A
B
(Max.)  
C
(Min.)  
RCD Type  
Rating 1  
Range 1  
Rating 1, 2  
± .032 [.8]  
± .024 [.6]  
±.003 [.07] (Min.)  
± .012[.3]  
BW1/8F  
1/8W  
1to 10K  
200V  
200V  
250V  
250V  
300V  
300V  
350V  
.145 [3.7]  
.250 [6.4]  
.354 [9.0]  
.250 [6.4]  
.375 [9.5]  
.450 [11.4]  
.067 [1.7]  
.090 [2.3]  
.128 [3.3]  
.090 [2.3]  
.135 [3.4]  
.162 [4.1]  
.020 [.5] 1.00 [25]  
N/A  
BW1/4F, MBW1/4F  
BW1/2F, MBW1/2F  
1/4W 0.1to 10K  
1/2W 0.1to 24K  
.022 [.55] 1.02 [26] .256 [6.5]  
.118 [3]  
.040 [1]  
.025 [.6] 1.02 [26] .374 [9.5] .154 [3.9] .060 [1.5]  
.022 [.55] 1.02 [26] .256 [6.5] .118 [3] .040 [1]  
.026 [.65] 1.02 [26] .374 [9.5] .154 [3.9] .060 [1.5]  
.031[.8] 1.02 [26] .441[ 11.2] .197 [5] .080 [2]  
BW1/2FS, MBW1/2FS 1/2W 0.2to 20K  
BW1F, MBW1FS  
BW2F, MBW2F  
BW3F, MBW3F  
1.0W 0.1to 24K  
2.0W 0.1to 24K  
3.0W 0.1to 24K  
.60±.062[15.2±1.6] .22±.032[5.6±.8] .031[.8] 1.37 [35] .598 [15.2] .220 [5.6] .080 [2]  
1 Expanded range available 2 Maximum working voltage is determined by E = (PR)1/2, 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:  
TYPICALPERFORMANCE  
1. Fault level must be suitable to safely open the resistor quickly, especially surface mount  
MBW models. If insufficent, the resistor may reach elevated temp. For this reason, the  
fusing overload must be relatively large compared to rated W, 20 to 50x is common for  
most axial-lead applications, 40 to 100x for most SM circuits. SM fusing times vary due to  
mounting geometry/materials, so each application needs to be evaluated by user. The fault  
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  
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).  
Temperature Coefficient  
Load Life Stability  
Operating Temp. Range  
Power Derating  
200ppm/°C  
5%  
-55 to +165°C  
0.71%/°C >25°C  
500V (300V BW1/8F)  
Dielectric Strength  
BW1F  
- 101 J T W  
P/N DESIGNATION:  
RCD Type  
2. For customized models, complete RCD’s Fuse Questionnaire or advise the desired fusing  
wattage or current, min.& max. blow time, continuous wattage, ambient temp., pulse  
conditions, physical constraints, voltage to be interrupted, frequency, etc.  
Options (leave blank if standard)  
Resis.Code 1%: 3 signif. figures & multiplier,  
(R100=.1Ω,1R00=1,10R0=10Ω,1000=100, etc.)  
Resis.Code 2%-10%: 2 signif. figures & multiplier,  
(R10=0.1Ω, 1R0=1, 100=10Ω, 101=100Ω, etc.)  
Tolerance: J=5% (std.) G=2%, F=1%  
Packaging: B=Bulk, T=Tape & Reel  
Termination: W = Lead-free, Q = Tin/Lead  
3. Maintain clearance from any heat-sensitive or flammable materials.  
4. Fusing times vary depending on resistance value. Typical fusing times are given above  
for 1- 3.9K. Low values tend to fuse slower. Consult factory for assistance.  
5. Residual resis. is 50x initial value after fusing at 20x rated W (30x for BW1/8F & MBW)  
6. Verify selection by evaluating under the full range of fault conditions. Place resistors  
inside a protective case when testing.  
(leave blank if either acceptable)  
-
-
-
-
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  

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