SMOV34S Datasheet, PDF (1/6 Pages) Littelfuse – The Littelfuse SMOV thermally protected varistor is a self-protected device.

Varistor Products
Thermally Protected Varistors > SMOV34S Series
RoHS _{SMOV34S Varistor Series}
Agency Approvals
Agency
Agency File Number
E320116
Description
The Littelfuse SMOV thermally protected varistor is a self-
protected device. It consists of a 34mm square varistor with
an integral thermal disconnect designed to open in the event of
overheating due to abnormal overvoltage as outlined in UL1449
3rd edition. The SMOV helps facilitate SPD module compliance
to UL1449 and offers quick thermal response due to the close
proximity of the integrated thermal element to the MOV body.
This configuration also offers lower inductance than most discreet
solutions resulting in improved clamping performance to fast over
voltage transients.
The device has a separate micro-switch, which can be used to
indicate that the MOV has been disconnected from the circuit.
This separate switch makes the monitoring circuitry completely
isolated from the main power which ensures indicator circuit
safety and simplifies the customers circuit design.
Features
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surge capability 40 kA,
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Current Value: 20kA.
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rating: 50A/150A.
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temperature.
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1449 3rd edition.
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RoHS compliant.
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for indication
circuitry/design.
Applications
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©2012 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/smov34s.html for current information.
Revision: May 24, 2012
SMOV34S Varistor Series