PRF18AS471QS2RB Murata, PRF18AS471QS2RB Datasheet - Page 30

• Manufacturer Part Number: PRF18AS471QS2RB
• Manufacturer: Murata

Specifications of PRF18AS471QS2RB

• Lead Free Status / RoHS Status: Compliant

!Note
• 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
• 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.
sales representatives or product engineers before ordering.
!Note
Overcurrent Protection device with resettable function
suitable for current limiting resistor.
This product is chip type PTC thermistor for
overcurrent protection which is suitable for the
following
•Countermeasure for short circuit testing
•Current limiting resistor
1. Rapid operation to protect the circuit in an
2. Suitable for countermeasure to short circuit test
3. Stable resistance after operation due to ceramic
4. Similar size (0603 size) is possible due to the
5. Possible to use these products as current
6. SMD type is helpful for miniaturizing circuits
7. Lead is not contained in the terminations
Part Number
PRG21AR420MS1RA
PRG21AR220MS1RK
PRG21
NTC/PTC Thermistors for Automotive
PTC Thermistor (POSISTORr) for Overcurrent Protection Chip Type 0805 (2012) Size
Features
overcurrent condition abnormality such as a
short circuit.
By removing the overcurrent condition, these
products automatically return to the initial
condition and can be used repeatedly.
in safety standard
PTC
large capacity for electric power.
limiting resistors with overcurrent protection
functions
because of its small size and lightweight
Standard Land Pattern Dimensions
• Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This 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.
Part Number
Reflow Soldering
Soldering
Methods
b
Voltage
Max.
(V)
20
16
Chip (LgW)
Chip
2.0g1.25
a
Dimensions (mm)
Current (at +85 C)
Non-operating
Land
1.0-1.2 0.5-0.7 1.0-1.2
Solder resist
a
(mA)
25
45
b
Current (at +105 C)
(in mm)
c
Non-operating
(mA)
15
25
Trip Current
(at -40 C)
(mA)
130
250
Part Number
PRG21_RA
PRG21_RK
Current
Max.
(mA)
590
900
e
2.0 0.2 1.25 0.2 0.9 0.2 0.2 min. 0.5 min.
2.0 0.2 1.25 0.2 1.25 0.2 0.2 min. 0.5 min.
L
g
L
Resistance
42 20%
22 20%
(at 25 C)
Dimensions (mm)
(ohm)
W
e
T
W
Temperature
-40 to 105
-40 to 105
e
Range
( C)
g
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