Datasheet > SP-201505LF_08

SP-201505LF_08

更新时间： 2024-01-02 11:26:40

品牌	Logo	应用领域
TTELEC		电阻器线绕电阻器
页数	文件大小	规格书
3页	232K
描述
General Purpose Failsafe Molded Wirewound Resistor

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SP-201505LF_08 数据手册

General Purpose Failsafe

Molded Wirewound Resistor

SP20/SP20F Series

• SP20F Fusible

• ±5%, ±10% tolerance

• 0.1 ohm to 1200 ohms

• F version has ﬂame resistant coating

• 1 watt rated with 1/2 watt dimensions

• Drop-in replacement for BW20/BW20F

• Weldable and solderable magnetic lead

• TCR’s as low as ±150 ppm/°C standard (custom TC’s available)

• Lead free, RoHS compliant construction available

(See notes below)

Electrical Data

1. Resistive Element

All resistor types have resistance alloy

winding on a braided ﬁberglass substrate.

Intermediate silicone coatings are used

to enhance processibility and to provide

protection to the resistive element.

IRC Type

SP20

SP20F

EIA RS-344 Style

MIL-R-11 Style

CRU1

2. Termination

The SP-20 and SP-20F resistors are

terminated using an alloy coated copper

ﬂashed steel lead welded to a cap of the

same material. This termination assembly is

mechanically crimped, utilizing an improved

crimp design, to the resistive element.

RC20/RC32

0.1Ω to 1200Ω

±5%, ±10%

RC20/RC32

0.1Ω to 1000Ω

±5%, ±10%

Resistance - Std.

Tolerance - Std.

3. Encapsulation

1 watt @ 50°C

3/4 watt @ 70°C

1/2 watt @ 100°C

1 watt @ 50°C

3/4 watt @ 70°C

---

The SP-20 and the SP20F are encapsulated

utilizing a compression molded phenolic

plastic material. The SP-20F has a ﬂame

resistance coating applied over the resistive

element to provide ﬂammability protection

when destructive overloads may occur.

Power Rating

Derating to 0 @ 160°C Derating to 0 @ 160°C

Max. Continuous Working Voltage

√PR

4. Marking

Min. Insulation

Resistance

Dry

Wet

10,000 Meg

100 Meg

10,000 Meg

100 Meg

All products are marked utilizing heat and

solvent resistant color code bands consistent

with EIA/MIL requirements. The ﬁrst band

is double width to designate wirewound

construction. A ﬁfth band, blue in color, is

used for ﬂameproof identiﬁcation.

700V

Min. Dielectric

ATM

Withstanding Volts

(RMS)

Reduced Pressure

450V

Hotspot Temperature Rise

Typical Load Life

120°C @ 1 watts

Current Noise

Negligible

General Note

IRC reserves the right to make changes in product speciﬁcation without notice or liability.

All information is subject to IRC’s own data and is considered accurate at time of going to print.

A subsidiary of

TT electronics plc

Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA

Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com

SP20/SP20F Series Issue December 2008 Sheet 1 of 3

12 3

中文翻译

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