PRM1/4-37R4-FTW [RCD]
Fixed Resistor, Wire Wound, 0.25W, 37.4ohm, 250V, 1% +/-Tol, 120ppm/Cel, Surface Mount, 2615;型号: | PRM1/4-37R4-FTW |
厂家: | RCD COMPONENTS INC. |
描述: | Fixed Resistor, Wire Wound, 0.25W, 37.4ohm, 250V, 1% +/-Tol, 120ppm/Cel, Surface Mount, 2615 CD 电阻器 |
文件: | 总1页 (文件大小:50K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
PRELIMINARY
RESISTORSwCOILSwDELAY LINES
PULSE RESISTORS, SURFACE MOUNT
PRM SERIES
FEATURES
r Surface-mount version of RCD's popular PR Series
r Cost effective
rHigh voltage pulse capability
r Insensitive to moisture
RCD's PRM Series Pulse Resistant resistors are de-
signed to replace carbon composition styles in numerous
applications. The PRM Series feature a core composi-
tion of ceramic and heavy duty wound element. The
construction enables surge performance similar to or
better than carbon composition resistors (depending on
resistance value) and significantly improved environmen-
tal stability (see comparison chart). Elements are
protected by high-temp molded case for excellent envi-
ronmental performance and 500V minimum dielectric
strength. PRM resistors are cost effective in a wide
variety of pulse applications including telecom line feed
resistors which must withstand lightning surges,snubber
circuits, in-rush currents, capacitor charging and
discharge circuits, etc.
rAvailable on exclusiveSWIFTä delivery program
OPTIONS
r X = Non-inductive design
r ER = Group A Screening per MIL-R-39008 (RCR)
A
←
→
C
B
→
←D
←E→
SPECIFICATIONS
RCD
Type
Wattage
@ 70° C
Resistance
Range
Working
Peak
A
B
C
D
E
Voltage Pulse*
PRM1/8
PRM1/4
PRM1/2
PRM1
1/8W
1/4W
1/2W
1W
0.1W to 2K
0.1W to 8.2K
0.1W to 24K
0.1W to 100K
150V
250V
350V
500V
3KV
5KV
7KV
.260±.02 [6.6±.5]
.260±.02 [6.6±.5]
.445±.032 [11.3±.8]
.110±.015 [2.8±.38] .150±.015 [3.8±.38]
.110±.015 [2.8±.38] .150±.015 [3.8±.38]
.040 Min.[1.0]
.040 Min. [1.0]
.080 Min. [2.0]
.060±.015 [1.5±.38]
.060±.015 [1.5±.38]
.060±.015 [1.5±.38]
.110±.02 [2.79±2.15]
.180±.020 [4.6±.5]
.225±.015 [5.7±.38]
12KV .811±.018 [20.6±.46] .275±.010 [7.0±.25] .273±.010 [6.9±.25] .085±.02 [2.15]
*Peak pulse voltage is highly dependent on pulse waveform and resistance value. Voltage levels given indicate the maximum levels for the series.
These levels are not attainable for all values and plse waveforms. Contact factory for application assistance.
PERFORMANCE COMPARISON CHART
AVAILABLE SURGE STANDARDS
Depending on resistance value, RCD's PRM Series can satisfy surge
requirements of the following standards:
RCD PRM SERIES
CARBON COMP
Insulation Resistance 10,000MW Min
10,000MW Min
.007% - .03%/V
6% Max
UL1971
UL217
UL268
UL294
UL497A
UL508
UL913
UL943
UL991
UL1459
ANSI/IEEE C62.41
Bellcore TR-NWT-001089
Bellcore TR-TSY-000057
IEEE587
Canadian Doc. CS-03
CCITT (Rec. K17)
CSA C22.2 No.225
IEC 664 & 801.5
FCC Part 68
Voltage Coefficient
Load Life
.005%/V Max
0.5% Max
0.5% Max
0.2% Max
0.2% Max
0.2% Max
0.2% Max
1% Max
Short Time Overload
Terminal Strength
Effect of Solder Heat
Vibration
1%-2.5% Max
1% Max
2%-3% Max
1% Max
REA (PE60)
P/N DESIGNATION:
Shock
2% Max
PRM1/2
- 1001 - J
T
Humidity Resistance
11% Max
RCD Type
Low Temp. Operation 0.5% Max
2% Max
Options: X, ER, (leave blank
if standard)
Temperature Cycling
Temp. Coefficient
Operating Temp.
Wattage Derating
0.5% Max
2% Max
4-Digit Res. Code: 3 sig. digits &
multiplier. R100=0.1Ω,1R00=1Ω,
1000=100Ω,1001=1KΩ
±.012%/°C Max
-65°C to +155°C
1.176%/°C>70°C
-.046 to +.12%/°C
-65°C to +150°C
1.25%/°C>70°C
Tolerance Code: K=10%, J=5%, H=3%, G=2%, F=1%
Packaging: B = is bulk, T = Tape & Reel
RCD Components Inc., 520 E. Industrial Park Dr., Manchester, NH, USA 03109
Tel: (603) 669-0054 Fax:(603) 669-5455 E-mail: rcdcompinc@aol.com www.rcd-comp.com
FA005 specifications subject to change without notice
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