AVHT Series - High Temperature Automotive Grade Varistors

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.

Specifications are subject to change without notice.

Users should verify actual device performance in their specific applications.

General Information

Almost all electronic systems in an automobile, e.g., anti-lock brake system, direct

ignition system, airbag control system, wiper motors, etc. are susceptible to damage

transient suppressors with temperature independent suppression characteristics

enabling protection from -55 °C to 150 °C.

AVHT Series varistors offer excellent transient energy distribution. AV varistors require

significantly less space and pad area than silicon TVS diodes, offering greater circuit

board layout flexibility for the designer.

Multilayered Varistor Symbol

WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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Index

Features...................................................... 1

General Information .................................... 1

MLV Symbol................................................ 1

Absolute Maximum Ratings........................ 1

Device Ratings............................................ 2

Product Dimensions.................................... 3

How to Order............................................... 4

Typical Part Marking ................................... 4

Protection Level/

Pulse Rating Curves ................................5-7

Soldering Pad Configuration....................... 8

Packaging Specifications ........................8-9

Soldering Recommendations for

SMD Components................................10-12

Reliability - Lifetime................................... 13

Reliability Testing Procedures..............14-15

Terminology............................................... 16

Legal Disclaimer........................................ 17

Features

n

Formerly a

product

n

Five model sizes available - 0805, 1206,

1210, 1812 and 2220

n

Supply voltages: 12 V, 24 V and 42 V

n

Broad range of current and energy handling

capabilities

n

n

Non-sensitive to mildly activated fluxes

n

Non-plastic coating for better flammability

rating

n

+150 °C maximum continuous operating

temperature

n

Load Dump Energy up to 50 J available upon

request

n

RoHS compliant*

n

AEC-Q200 Grade 0 upon request

Absolute Maximum Ratings

Parameter

Value

Units

Continuous:

Steady State Applied Voltage

16 to 56

V

Transient:

Load Dump Energy (WLD)

1 to 25 **

24.5 to 65

120 to 2000

0.3 to 30

J

V

A

J

Operating Ambient Temperature

-55 to +150

°C

Storage Temperature Range

-55 to +150

°C

Threshold Voltage Temperature Coefficient

< +0.05

%/°C

Response Time

< 2

ns

Climatic Category

55 / 150 / 56

** Load Dump Energy (WLD) up to 50 J available upon request.

U