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Varistor Products

©2009 Littelfuse, Inc.

Revision: January 15, 2010

ML Varistor Series

Surface Mount Multilayer Varistors (MLVs) > ML Series

Specifications are subject to change without notice.

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

ML Varistor Series

RoHS

Description

The ML Series family of transient voltage surge

suppression devices is based on the Littelfuse Multilayer

fabrication technology. These components are designed

to suppress a variety of transient events, including those

specified in IEC 61000-4-2 or other standards used for

Electromagnetic Compliance (EMC). The ML Series is

typically applied to protect integrated circuits and other

components at the circuit board level.

The wide operating voltage and energy range make the ML

Series suitable for numerous applications on power supply,

control and signal lines.

The ML Series is manufactured from semiconducting

ceramics, and is supplied in a leadless, surface mount

package. The ML Series is compatible with modern reflow

and wave soldering procedures.

It can operate over a wider temperature range than Zener

diodes, and has a much smaller footprint than plastic-

housed components.

Littelfuse Inc. manufactures other multilayer series

products. See the MLE Series data sheet for ESD

applications, MHS Series data sheet for high-speed ESD

applications, the MLN Series for multiline protection and

the AUML Series for automotive applications.

Features

•

AEC - Q200 compliant

•

RoHS compliant

•

Leadless 0402, 0603,

0805, 1206 and

1210 chip sizes

•

Multilayer ceramic

construction technology

•

-55°C to +125°C

operating temp. range

•

Operating voltage range

V

M(DC)

= 5.5V to 120V

•

Rated for surge

current (8 x 20

μs)

•

Rated for energy

(10 x 1000

μs)

•

Inherent bi-directional

clamping

•

No plastic or epoxy

packaging assures

better than UL94V-0

flammability rating

•

Standard low capacitance

types available

Applications

•

Suppression of inductive

switching or other

transient events such as

EFT and surge voltage at

the circuit board level

•

ESD protection for IEC

61000-4-2, MIL-STD-

883c method 3015.7,

and other industry

specifications (see also

the MLE or MLN Series)

•

Provides on-board

transient voltage

protection for ICS

and transistors

•

Used to help achieve

electromagnetic

compliance of

end products

•

Replace larger surface

mount TVS Zeners in

many applications

Size Table

Metric

EIA

1005

0402

1608

0603

2012

0805

3216

1206

3225

1210

Absolute Maximum Ratings

Continuous

ML Series

Units

Steady State Applied Voltage:

DC Voltage Range (V

3.5 to 120

V

AC Voltage Range (V

2.5 to 107

V

Transient:

Non-Repetitive Surge Current, 8/20

μs Waveform, (I

4 to 500

A

Non-Repetitive Surge Energy, 10/1000

μs Waveform, (W

0.02 to 2.5

J

Operating Ambient Temperature Range (T

-55 to +125

ºC

Storage Temperature Range (T

-55 to +150

ºC

Temperature Coefficient (

DV) of Clamping Voltage (V

Specified Test Current

<0.01

%/º C