RC20 IRC, RC20 Datasheet

RC20

Manufacturer Part Number

RC20

Description

Carbon Composition Resistors RC20

Manufacturer

IRC

Series

RC20r

Datasheet

1.RC20GF131J.pdf (3 pages)

Specifications of RC20

Product

Resistors Carbon Composition

Termination Style

Axial

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

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Electrical Data

General Note

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

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

Wire and Film Technologies Division

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

SP20 / SP20F Series

General Purpose Failsafe

Molded Wirewound Resistor

IRC Type

EIA RS-344 Style

MIL-R-11 Style

Resistance - Std.

Tolerance - Std.

Power Rating

Max. Continuous Working Voltage

Min. Insulation

Resistance

Min. Dielectric

Withstanding Volts

(RMS)

Hotspot Temperature Rise

Typical Load Life

Current Noise

•

SP20F Fusible

±5%, ±10% tolerance

0.1 ohm to 1200 ohms

F version has ﬂ ame resistant coating

1 watt rated with 1/2 watt dimensions

Drop-in replacement 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

Reduced Pressure

• 4222 South Staples Street • Corpus Christi Texas 78411 USA

ATM

Wet

Dry

Derating to 0 @ 160°C

1/2 watt @ 100°C

120°C @ 1 watts

3/4 watt @ 70°C

0.1Ω to 1200Ω

1 watt @ 50°C

RC20/RC32

10,000 Meg

±5%, ±10%

Negligible

100 Meg

CRU1

SP20

700V

450V

√

Derating to 0 @ 160°C

120°C @ 1 watts

3/4 watt @ 70°C

0.1Ω to 1000Ω

1 watt @ 50°C

RC20/RC32

10,000 Meg

±5%, ±10%

Negligible

100 Meg

SP20F

CRU1

700V

450V

√

---

1. Resistive Element

All resistor types have resistance alloy

winding on a braided ﬁ berglass substrate.

Intermediate silicone coatings are used

to enhance processibility and to provide

protection to the resistive element.

2. Termination

The SP-20 and SP-20F resistors are

terminated using an alloy coated copper

ﬂ ashed 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.

3. Encapsulation

The SP-20 and the SP20F are encapsulated

utilizing a compression molded phenolic

plastic material. The SP-20F has a ﬂ ame

resistance coating applied over the resistive

element to provide ﬂ ammability protection

when destructive overloads may occur.

4. Marking

All products are marked utilizing heat and

solvent resistant color code bands consistent

with EIA/MIL requirements. The ﬁ rst band

is double width to designate wirewound

construction. A ﬁ fth band, blue in color, is

used for ﬂ ameproof identiﬁ cation.

(See notes below)

SP20/SP20F Series Issue September 2010 Sheet 1 of 3

TT electronics plc

A subsidiary of

Related parts for RC20

RC20 Summary of contents

Page 1

... South Staples Street • Corpus Christi Texas 78411 USA Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com SP20 SP20F CRU1 CRU1 RC20/RC32 RC20/RC32 0.1Ω to 1200Ω 0.1Ω to 1000Ω ±5%, ±10% ±5%, ±10% 1 watt @ 50°C 1 watt @ 50°C 3/4 watt @ 70° ...

Page 2

... SP20F (9.91 ± 0.25) 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 <1R <±800 ≥1R <±150 700V ...

Page 3

... Custom design identiﬁ er for non-standard products 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 SP-20F Power Derating Curve 2.5 2.0 1 ...

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