POLYMER RESETTABLE FUSE

Trustworthy electronic circuit protection expert

SMD2018 Series

www.yint.com.cn

Rev:19.3

1

SMD2018 Series

Features

●

Smaller size saves board space and cost

●

Resettable circuit protection

●

Fast time-to-trip

●

Low resistance

●

Surface mount packaging for automated assembly

●

Lead-free and compliant with the European Union RoHS Directive 2002/95/EC

Application

Polymer Resettable Fuse for over-current, over-temperature and short-circuit protection

●

Computer motherboards

●

IEEE1394 Ports

●

USB hub, ports and peripherals

●

Phones

●

Data communication

●

Modems/ Ethernet/LAN

General Description

Polymer resettable fuse are made of polymeric PTC materials which is a matrix of

polymer containing dispersed conductive particles. Generally, the device has a very

low resistance. If an over-current happened, as a response to the damage current,

the resistance will immediately increase to very high, reducing the current of the

circuit to a safe value that the loading can carry. Once fault to the circuit is weed out

and power is recuperated, the polymer will deflate itself , the device will reset and is

ready for normal operation.

Product Dimensions （mm）

型号

A

B

C

D

E

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Min

SMD2018-030

4.72

5.44

4.22

4.93

0.60

1.10

0.30

0.25

SMD2018-050

4.72

5.44

4.22

4.93

0.60

1.10

0.30

0.25

SMD2018-100

4.72

5.44

4.22

4.93

0.45

0.80

0.30

0.25

SMD2018-100-33

4.72

5.44

4.22

4.93

0.45

0.80

0.30

0.25

SMD2018-150

4.72

5.44

4.22

4.93

0.45

0.80

0.30

0.25

SMD2018-200

4.72

5.44

4.22

4.93

0.45

0.80

0.30

0.25