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Features

■ Fuses safely at 220/240 mains voltage

■ Resistance values as high as 2.2K ohms

■ Flame-proof silicone coating

■ Low TCR

Applications

■ White goods

■ Inverters

■ Lighting

■ Metering

■ RoHS compliant*

■ Agency approval:

PWR4522 Fusible Power Resistors

General Introduction

The PWR4522A Series of axial leaded wirewound resistors in a ?ameproof silicone coating are designed to fuse under abnormal

conditions such as sudden surges in voltage or circuit malfunctions. The resistor will fuse instantly upon the application of 220/240

mains voltage without ?ame or incandescent particles.

Electrical Characteristics

Agency Approval

Characteristic

Power

Resistance Range

Tolerance

Model

PWR4522

8.2 ohms to 2.2K ohms (E12)

Description

File Number: E349323

UL Approved at 120 Vac

Temperature Coef?cient

Operating Temperature Range

Maximum Voltage

Fusing Point

Fusing Time

±90 PPM/°C

-55 °C to +350 °C

√ P*R

16X Rated Power

45 Seconds Max.**

Materials

Resistor ................ Wirewound around a

ceramic core

Lead Frame .....................Tinned copper

Housing ............ Flameproof thermocoat

** The resistor will fuse safely if 220/240 mains voltage is applied. The time to fuse depends

on the resistance value.

Product Dimensions

Power Derating Curve

120

100

38.0 ± 1.5

11.5

5.5

(1.50 ± 0.06)

(0.45)

(0.22)

MAX.

0.8 ±0.05

(0.03 ± 0.002)

DIMENSIONS:

(INCHES)

100

150

200

250

300

350

For Standard Values Used in Capacitors, Inductors, and Resistors, click here.

Ambient Temperature (°C)

How to Order

PWR 4522 A S 8R20 J A

Model

PWR = Power Resistor

Package

4522 = Size (0.45 x 0.22 inches)

Pin Style

A = Axial Through-hole

Version

S = Safety Version (Fuses without ?ames or explosion when 220/240 mains voltage is applied)

Resistance Value

R<100 ohms “R” represents decimal point

R ≥ 100 ohms First three digits are signi?cant, fourth digit represents number of zeros to follow

Resistance Tolerance

J = ±5 %

Packaging

A = Ammo Pack (750 pcs. per pack)

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Speci?cations are subject to change without notice.

The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.

Users should verify actual device performance in their speci?c applications.

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