SPH1505LF IRCTT [IRC - a TT electronics Company.], SPH1505LF Datasheet

SPH1505LF

Manufacturer Part Number

SPH1505LF

Description

GENERAL-PURPOSE FAILSAFE MOLDED WIREWOUND RESISTOR

Manufacturer

IRCTT [IRC - a TT electronics Company.]

Datasheet

1.SPH1505LF.pdf (2 pages)

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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.

SPH/SPF SERIES

GENERAL-PURPOSE FAILSAFE

MOLDED WIREWOUND RESISTOR

WIREWOUND AND FILM TECHNOLOGIES DIVISION

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

SPECIFICATIONS:

DIMENSIONS (Inches and (mm)):

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

IRC TYPE

SPH

SPF

• 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

Reduced Pressure

0.562±0.010

(14.3±0.25)

Dry

Wet

ATM

Derating to 0 @ 160°C

0.225±0.008

145°C @ 2 watts

(5.72±0.20)

1 watt @ 115°C

0.1Ω to 2400Ω

2 watt @ 70°C

RC32/RC42

10,000 Meg

±5%, ±10%

Negligible

100 Meg

1000 V

CRU 2

625V

SPH

√PR

(0.813±0.05)

0.032±0.002

Derating to 0 @ 160°C

145°C @ 2 watts

1 watt @ 115°C

0.1Ω to 1000Ω

2 watt @ 70°C

RC32/RC42

10,000 Meg

±5%, ±10%

Negligible

100 Meg

1000 V

CRU 2

625V

SPF

√PR

1.50±0.126

(38.1±3.2)

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 pro-

tection to the resistive element.

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.

3. Encapsulation

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.

4. Marking

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.

See notes below

TT electronics plc

A subsidiary of

Related parts for SPH1505LF

SPH1505LF Summary of contents

Page 1

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) ...

Page 2

SPH/SPF CHARACTERISTICS (TYPICAL PERFORMANCE): Test Temperature Coefﬁcient (ppm)* Dielectric Withstanding Voltage (RMS) Momentary Overload Low Temperature Operation Temperature Cycle Humidity Load Life Terminal Strength Resistance to Solder Heat Solderability *All ppm levels listed are maximum. SPH POWER DERATING: Ambient Temperature ...

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