PRM1/4-37R4-FB [RCD]

Fixed Resistor, Wire Wound, 0.25W, 37.4ohm, 250V, 1% +/-Tol, 120ppm/Cel, Surface Mount, 2615;


型号：	PRM1/4-37R4-FB
厂家：	RCD COMPONENTS INC.
描述：	Fixed Resistor, Wire Wound, 0.25W, 37.4ohm, 250V, 1% +/-Tol, 120ppm/Cel, Surface Mount, 2615 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)

←

→

←D

←E→

SPECIFICATIONS

RCD

Type

Wattage

@ 70° C

Resistance

Range

Working

Peak

Voltage Pulse*

PRM1/8

PRM1/4

PRM1/2

PRM1

1/8W

1/4W

1/2W

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]

.445±.032 [11.3±.8]

.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]

.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

0.2% 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

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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