Datasheet > SPF

SPF

更新时间： 2024-09-14 06:13:23

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
2页	630K
描述
General-Purpose Failsafe Moulded Wirewound Resistors

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中文翻译

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SPF 数据手册

General-Purpose Failsafe

Moulded Wirewound Resistors

Welwyn Components

SPH/SPF Series

• Drop-in replacement for BWH/BWF

2 watt rated with 1 watt dimensions

•

±±5% ±1ꢀ5 tolerance

•

ꢀ.1 ohm to 24ꢀꢀ ohms

•

TCR’s as low as ±1±ꢀ ppm/°C standard

(custom TC’s available)

•

Weldable and solderable leads

•

Electrical Data

Type

SPH

SPF

EIA RS-344 Style

MIL-R-11 Style

Resistance

CRU2

RC32/RC42

0R1 to 1k

ohms

0R1 to 2k4

Tolerance

5, 10

Power rating

watts

2 at 70°C

1 at 115°C

Derating to 0 at 160°C

Maximum continuous working voltage

Minimum insulation resistance

√PR

10,000 Meg

100 Meg

dry

wet

Minimum dielectric withstanding volts

Reduced pressure

ATM

RMS

watts

1000V

625V

Hotspot temperature rise

Current noise

145°C at 2 watts

Negligible

Physical Data

Dimensions (mm)

Type

SPH

SPF

14.3 0.25

5.72 0.20 0.813 0.05

38.1 3.2

Resistive Element

Encapsulation

All resistor types have resistance alloy winding on a braided

fibreglass substrate. Intermediate silicone coatings are used to

enhance processibility and to provide protection to the

resistive element.

The SPH and SPF are encapsulated utilizing a compression

moulded phenolic plastic material. The SPF has a flame-

resistance coating applied over the resistive element to provide

flammmability protection when destructive overloads may occur.

Termination

Marking

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.

All products are marked utilizing heat and solvent resistant

colour code bands consistent with EIA/MIL requirements. The

first band is double width to designate wirewound construction.

A fifth band, blue in colour, is used for flameproof identification.

General Note

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

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

A subsidiary of

TT electronics plc

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

Issue B · 03.02

中文翻译

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与SPF相关器件

型号	品牌	获取价格	描述	数据表
SPF0001	SANKEN	获取价格	Power Bipolar Transistor, 6A I(C), 125V V(BR)CEO, 2-Element, NPN, Silicon, Plastic/Epoxy,
SPF001	LITTELFUSE	获取价格	SPF太阳能保护保险丝专门针对光伏（PV）系统而设计。本小型保险丝系列（10x38 m
SPF0010R	LITTELFUSE	获取价格	Electric Fuse, 10A, 1000VDC, 20000A (IR), Through Hole, ROHS COMPLIANT
SPF0012	LITTELFUSE	获取价格	Electric Fuse, 12A, 1000VDC, 20000A (IR), Inline/holder, ROHS COMPLIANT
SPF0012R	LITTELFUSE	获取价格	Electric Fuse, 12A, 1000VDC, 20000A (IR), Through Hole, ROHS COMPLIANT
SPF0015	LITTELFUSE	获取价格	Electric Fuse, 15A, 1000VDC, 20000A (IR), Inline/holder, ROHS COMPLIANT
SPF0015R	LITTELFUSE	获取价格	Electric Fuse, 15A, 1000VDC, 20000A (IR), Through Hole, ROHS COMPLIANT
SPF001R	LITTELFUSE	获取价格	Electric Fuse, 1A, 1000VDC, 20000A (IR), Through Hole, ROHS COMPLIANT
SPF001S	LITTELFUSE	获取价格	特色与优点 ? UL248-19?列入认证目录 ? 符合IEC 60269-6对1至25安
SPF002	LITTELFUSE	获取价格	Solar Rated Midget Fuse

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