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Varistor Products

Revision: January 9, 2009

©2008 Littelfuse, Inc.

MA Varistor Series

Axial Lead / Application Specific Varistors > MA Series

Specifications are subject to change without notice.

Please refer to www.littelfuse.com/series/ma.html for current information.

Description

The MA Series of transient surge suppressors are axial

lead Metal Oxide Varistors (MOVs) for use in a wide

variety of board level industrial and commercial electronic

equipment. They are intended to protect components and

signal/data lines from low energy transients where the

small axial lead package is required.

The MA Series is offered with standard ('S' suffix) or

tightened ('B' suffix) clamping voltage.

See MA Series Device Ratings and Specifications Table for

part number and brand information.

Features

disc size

package

range:

V

V

M(DC)

13V to 365V

reel or bulk packaging

85ºC ambient

improved performance

for high temperature

Lead-free wave

soldering process.

Absolute Maximum Ratings

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation

of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

Continuous

MA Series

Units

Steady State Applied Voltage:

AC Voltage Range (V

9 to 264

V

DC Voltage Range (V

13 to 365

V

Transient:

Peak Pulse Current (I

For 8/20μs Current Wave(See Figure 2)

40 to 100

A

Single-Pulse Energy Range

For 2ms Current Square Wave (W

0.06 to 1.7

J

Operating Ambient Temperature Range (T

-55 to +85

°C

Storage Temperature Range (T

-55 to +125

°C

Temperature Coefficient (

αV) of Clamping Voltage (V

<0.01

%/°C

Hi-Pot Encapsulation (COATING Isolation Voltage Capability)

Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)

1000

V

COATING Insulation Resistance

1000

MΩ

MA Varistor Series

RoHS

Agency Approvals

Agency

Agency File Number

None