Description

Applicable

ROHS

www.unsemi.com.tw

Revision March 1,2022

www.unsemi.com.tw

For technical questions, contact: tech@unsemi.com.tw

Specifications are subject to change without notice.

Please refer to www.unsemi.com.tw for current information.

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TMOV34S Series

Thermal Fuse & MOV (TFMOV)

Mechanical Data

Functional Diagram

Part Numbering

UN Thermal Fuse & MOV (TFMOV) is a new patented product

in the field of surge protection. TFMOV is a fail-safe

device,which integrated a disk varistor and a Thermal Fuse in a

single package. The Thermal Fuse is designed to disconnect

the MOV from the circuit, in case of MOV's failure. Because the

MOV might thermally run away due to the increasing leakage

current, or burn and burst in the event of a short-circuit fault.



Home Electrical Appliances



Telecom Power Supplies



Surge Protectors



Power Adapters



Consuming Electronic



Power Supplies and Solar Energy



Wind Energy



Railway



Zero resistance structure: circular, has the lead,

with overtemperature from institutions, epoxy

resin coating



Coating material: flame retardant epoxy resin,

accord with UL94V-O



Electrode lead: tinned copper wire



Packing: in bulk

TMOV - 34

S

XXX

- KTA

(1)

(2) (3)

(4)

(5)

(1) Zone temperature insurance tube type

(2) The length of side

(3) TMOV Shape : S—Square

(4) Varistor Voltage

(5) Pin type

Mechanical Characteristics

Symbol

Parameter

Value

Units

VRMS

WMAX

IMAX

TJ

TSTG

60~680

310~1100

40

-40~+85

-40~+100

V

J

KA

ºC

ºC

Maximum ac Operating Voltage

Maximum Energy Resistance to Pressure

Peak Pulsing Current (tp=8/20µs Waveform)

Operating Junction Temperature Range

Storage Temperature Range