Features
n Formerly a
product
n Non-plastic coating for better flammability
rating
n Five model sizes available - 0805, 1206,
1210, 1812 and 2220
n Supply voltages: 12 V, 24 V and 42 V
n +150 °C maximum continuous operating
temperature
n Load Dump Energy up to 50 J available upon
request
n Broad range of current and energy handling
capabilities
n RoHS compliant*
n Low clamping voltage - V
c
n AEC-Q200 Grade 0 upon request
n Non-sensitive to mildly activated fluxes
AVHT Series - High Temperature Automotive Grade Varistors
General Information
Multilayered Varistor Symbol
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
from destructive voltage transients. Bourns® AVHT Series multilayered varistors are
transient suppressors with temperature independent suppression characteristics
enabling protection from -55 °C to 150 °C.
U
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.
Absolute Maximum Ratings
Parameter
Value
Units
Continuous:
Steady State Applied Voltage
DC Voltage Range (V
)
16 to 56
V
dc
Transient:
Load Dump Energy (WLD)
Jump Start Capability (5 minutes), (V
1 to 25 **
24.5 to 65
120 to 2000
0.3 to 30
J
V
A
J
)
jump
Peak Single Pulse Surge Current, 8/20 µs Waveform (I
)
max
Single Pulse Surge Energy, 10/1000 µs Waveform (W
Operating Ambient Temperature
Storage Temperature Range
)
max
-55 to +150
-55 to +150
< +0.05
°C
°C
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
Threshold Voltage Temperature Coefficient
Response Time
%/°C
ns
< 2
Climatic Category
55 / 150 / 56
** Load Dump Energy (WLD) up to 50 J available upon request.
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
Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
*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.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
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