Datasheet > SPH1505LF

SPH1505LF

更新时间： 2024-09-10 06:13:23

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TTELEC		电阻器
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描述
GENERAL-PURPOSE FAILSAFE MOLDED WIREWOUND RESISTOR

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SPH1505LF 数据手册

SPH/SPF SERIES

GENERAL-PURPOSE FAILSAFE

MOLDED WIREWOUND RESISTOR

• SPF is Fusible

• 2 watt rated with 1 watt dimensions

• ±5%, ±10% tolerance

• 0.1 ohm to 2400 ohms

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

• Drop-in replacement for BWH/BWF

• Weldable and solderable leads

• Lead Free, ROHS Compliant Construction Available

See notes below

1. Resistive Element

SPECIFICATIONS:

IRC Type

All resistor types have resistance alloy

winding on a braided ﬁberglass substrate.

Intermediate silicone coatings are used to

enhance processibility and to provide pro-

tection to the resistive element.

SPH

CRU 2

SPF

CRU 2

EIA RS-344 Style

MIL-R-11 Style

Resistance - Std.

Tolerance - Std.

Power Rating

RC32/RC42

0.1Ω to 2400Ω

±5%, ±10%

0.1Ω to 1000Ω

±5%, ±10%

2. Termination

The SPH and SPF 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.

2 watt @ 70°C

1 watt @ 115°C

Derating to 0 @ 160°C

2 watt @ 70°C

1 watt @ 115°C

Derating to 0 @ 160°C

Max. Continuous Working

Voltage

3. Encapsulation

√PR

The SPH and SPF are encapsulated utiliz-

ing a compression molded phenolic plastic

material. The SPF has a ﬂame-resistance

coating applied over the resistive element

to provide flammability protection when

destructive overloads may occur.

Min. Insulation

Resistance

Dry

Wet

ATM

10,000 Meg

100 Meg

1000 V

10,000 Meg

100 Meg

1000 V

Min. Dielectric

Withstanding Volts

4. Marking

(RMS)

Reduced Pressure

625V

145°C @ 2 watts

625V

145°C @ 2 watts

All products are marked utilizing heat and

solvent resistant color code bands consis-

tent with EIA/MIL requirements. The ﬁrst

band is double width to designate wire-

wound construction. A ﬁfth band, blue in

color, is used for ﬂameproof identiﬁcation.

Hotspot Temperature Rise

Typical Load Life

Current Noise

Negligible

DIMENSIONS (Inches and (mm)):

IRC TYPE

SPH

0.562±0.010

(14.3±0.25)

0.225±0.008

(5.72±0.20)

0.032±0.002

(0.813±0.05)

1.50±0.126

(38.1±3.2)

0.562±0.010

(14.3±0.25)

0.225±0.008

(5.72±0.20)

0.032±0.002

(0.813±0.05)

1.50±0.126

(38.1±3.2)

SPF

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

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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