MELF datasheet(10/16 Pages) AMPHENOL

10 / 16 page

PTCThermistors

Motor protection

PTD

• Smallinsulatedhead

• Longinsulatedflexible

wire

• Switchtemperatures

30to180°C

• DINcompliance

• MODapproval

Protectionof

industrial motors

and transformers,

submarine motors

Surface sensors

PTA

PTE

• Screw-inorbolt-on

configurations

• Flexibleorsolidwire

• Switchtemperature30

to140°C

Semi-conductor

heat sinks,

enclosure panels,

power supplies

Wired devices - general purpose

YM120

YS4019

YS4020

PTF

PTO

ü ü ü

• Ratingsupto1000

Vrms

• Switchcurrentsupto

Transformer

protection,

electronic lighting,

instrument/DMM

protection

Surface mount devices

YSM

YSM4021

PTSM

ü ü ü

• HighpowerSMDPTCs

• CompatiblewithSMD

assembly

• Ratingsupto1000

Vrms

• Switchcurrentsupto

• ConformancetoITU-T

K20/21

Telecom line

protection,DMM

instrument

protection,

electronic lighting

control

Circuit protection

ü ü

• Customdesigned

for electronic circuit

applications

• Excellentthermal

shock and power

handling performance

• ConformancetoITU-T

K20/21

Telecom primary

and secondary

protection

Description

Codes

Key Features

Typical Uses

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