• 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
Dimensions
L
PRG18BB
PRG21BB
PRG21BC
2.0±0.2
L
W
T
1.6±0.15
2.0±0.2
1.25±0.2
0.9±0.2
W
0.8±0.15
1.25±0.2
e
0.1-0.6
-
0.2 min.
0.5 min.
0.2 min.
0.5 min.
b
e
b
e
T
(in mm)
Multilayer Chip POSISTORr for Overcurrent Protection
Electrode Construction Cross-sectional
PTC
Ceramic
Nickel Barrier
PRG21BC Type
Sn Plating
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
From Fuse Resistor
From Current Control Circuit
Fuse Resistor
PRG
PRG
IN
OUT
IN
OUT
IN
OUT
IN
OUT
FET
FET
Limitting
Circuit
Limitting
Circuit
Simple
Auto-reset
Item
POSISTORr
Fuse Resistor
Control Circuit
Chip Resistor
From Chip Resistor
Safety
PRG
IN
FET
OUT IN
OUT
Repeat
Space
Cost
FET
Control
Circuit
Control
Circuit
Down Sizing &
Overcurrent Protecting
Key: Cross = Bad
- Circle = Good - Triangle = Little difference
MURATA [ muRata ]
