Datasheet > SP-201505LF

SP-201505LF

更新时间： 2024-09-27 06:13:07

品牌	Logo	应用领域
TTELEC		电阻器
页数	文件大小	规格书
2页	520K
描述
GENERAL-PURPOSE FAILSAFE MOLDED WIREWOUND RESISTOR

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SP-201505LF 数据手册

SP20/SP20F SERIES

GENERAL-PURPOSE FAILSAFE

MOLDED WIREWOUND RESISTOR

• SP20F is Fusible and has ﬂame resistant coating

• Drop-in replacement for BW20/BW20F

• 1 watt rated with 1/2 watt dimensions

• ±5%, ±10% tolerance

• 0.1 ohm to 1200 ohms

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

• Weldable and solderable magnetic leads

• Lead-/free, ROHS Compliant Construction Available

(See notes below.)

1. Resistive Element

SPECIFICATIONS:

All resistor types have resistance alloy

winding on a braided ﬁberglass sub-

strate. Intermediate silicone coatings

are used to enhance processibility and

to provide protection to the resistive

element.

SP20

CRU 1

SP20F

CRU 1

IRC Type

EIA RS-344 Style

Resistance - Std.

Tolerance - Std.

Power Rating

0.1Ω to 1200Ω

±5%, ±10%

0.1Ω to 1000Ω

±5%, ±10%

1 watt @ 50°C

3/4 watt @ 70°C

1/2 watt @ 100°C

Derating to 0 @ 160°C

1 watt @ 50°C

3/4 watt @ 70°C

---

2. Termination

The SP-20 and SP-20F resistors are

terminated using an alloy coated cop-

per ﬂashed steel lead welded to a cap

of the same material. This termination

assembly is mechanically crimped, uti-

lizing an improved crimp design, to the

resistive element.

Derating to 0 @ 160°C

Max. Continuous

Working Voltage

Min. Insulation

Resistance

√PR

Dry

Wet

ATM

10,000 Meg

100 Meg

700 V

10,000 Meg

100 Meg

700 V

3. Encapsulation

The SP-20 and SP-20F 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.

Min. Dielectric

Withstanding

Volts(RMS)

Reduced

Pressure

450V

120°C @ 1 watts

450 V

120°C @ 1 watts

Hotspot Temperature Rise

Typical Load Life

4. Marking

Current Noise

Negligible

All products are marked utilizing heat

and solvent resistant color code bands

consistent with EIA/MIL requirements.

The ﬁrst band is double width to des-

DIMENSIONS (Inches and (mm)):

IRC TYPE

SP20

0.390±0.010

(9.91±0.25)

0.140±0.008

(3.56±0.20)

0..032±0.002

(0.813±0.05)

1.50±0.126

(38.1±3.2)

0.390±0.010

(9.91±0.25)

0.140±0.008

(3.56±0.20)

0.032±0.002

(0.813±0.05)

1.50±0.126

(38.1±3.2)

SP20F

*Unless otherwise speciﬁed, standard test centers are 1 3/4 inches.

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

1005

WIREWOUND AND FILM TECHNOLOGIES DIVISION

736 Greenway Road • Boone, North Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com

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