CU3225K14AUTOG2 datasheet(3/28 Pages) EPCOS

3 / 28 page

Features

12 V and 24 V supply systems

High energy absorption capability

SMD plastic package

No temperature derating up to 85

°C

RoHS-compatible

Suitable for lead-free soldering

UL approved

PSpice simulation modeling available for different pulses

Applications

Load dump protection acc. to ISO 7637, pulse 5

Jump start protection

Design

Cylindrical varistor element, encapsulated.

Encapsulation: thermoplastic, flame-retardant to UL 94 V-0.

Termination: tinned copper alloy, suitable for lead-free wave and reflow soldering, and

compatible with tin/lead solder.

V/I characteristics and derating curves

V/I and derating curves are attached to the data sheet. The curves are sorted by VRMS and

then by case size, which is included in the type designation.

General technical data

Maximum RMS operating voltage

VRMS,max

14 ... 30

Maximum DC operating voltage

VDC,max

16 ... 34

Maximum surge current

(8/20 µs)

Isurge,max

100 ... 250

Maximum load dump energy

(10 pulses)

WLD

6 ... 12

Maximum jump start voltage

(5 min)

Vjump

25 ... 50

Maximum energy absorption

(2 ms)

Wmax

400 ... 2000

Maximum clamping voltage

(8/20 µs)

Vclamp,max

43 ... 93

Operating temperature

Top

40/+85

°C

Storage temperature

Tstg

40/+125

°C

SMD disk varistors (CU varistors)

Automotive series

Page 3 of 28

Please read Cautions and warnings and

Important notes at the end of this document.

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