Dimensions

PRG18BB

PRG21BB

PRG21BC

L

W

T

e

b

1.6

±0.15

0.8

±0.15

0.1-0.6

-

2.0

±0.2

1.25

±0.2

0.2 min.

0.5 min.

2.0

±0.2

1.25

±0.2

0.9

±0.2

0.2 min.

0.5 min.

L

eb

e

T

W

Multilayer Chip POSISTORr for Overcurrent Protection

Electrode Construction Cross-sectional

Nickel Barrier

PRG21BC Type

Sn Plating

PTC

Ceramic

Data here are reference only. Specifications available upon request. Product to be evaluated, confirmed by the user before actual use.

Description here may be revised without notice.

POSISTORr Ideas

Limitting

Circuit

IN

IN

OUT

OUT

FET

Fuse Resistor

Limitting

Circuit

IN

OUT

FET

Control

Circuit

FET

Control

Circuit

FET

PRG

IN

OUT

PRG

Auto-reset

Down Sizing &

Overcurrent Protecting

From Fuse Resistor

From Chip Resistor

IN

IN

OUT

OUT

PRG

Simple

From Current Control Circuit

Key: Cross = Bad - Circle = Good - Triangle = Little difference

Safety

Repeat

Space

Cost

POSISTORr

Fuse Resistor

Control Circuit

Chip Resistor

Item

(in mm)

• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our

sales representatives or product engineers before ordering.

• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.

!Note

R01E.pdf

06.1.25