PRF18BE471QB1RB Murata, PRF18BE471QB1RB Datasheet - Page 2

• Manufacturer Part Number: PRF18BE471QB1RB
• Description: Thermistors - PTC 470 OHM 32V
• Manufacturer: Murata
• Series: PRF18r

Specifications of PRF18BE471QB1RB

• Resistance: 470 Ohms
• Tolerance: 50 %
• Termination Style: SMD/SMT
• Operating Temperature Range: - 20 C to + 100 C
• Current Rating: 0.1 mAmp
• Dimensions: 0.80 mm W x 1.60 mm L
• Voltage: 32 V
• Lead Free Status / RoHS Status: Lead free / RoHS 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.
PRF15/18 PTC Chip thermistors detect overheating of
Hybrid ICs, Power Transistors, Power Diodes and
Power ICs etc.
1. 0402 and 0603 light weight
PRF15BA471QB1RC
PRF15BB471QB1RC
PRF15BC471QB1RC
What is a Thermistor?
PRF15/18 Series Chip POSISTORr for Overheat Sensing
PRF15 Series Characteristics
Part Number
PRF
Negative
R1
R2
Dimensions
Positive
Thermally Sensitive
1.0 0.05
0.1-0.4
Thermal
Contact
Thermistor
Temperature
Temperature
Characteristics
NTC
PTC
BA
BB
BC
0.5 0.05
R
R
Resistor
Coefficient
L
E
Coefficient
0.5 0.05
470ohm 50%
+Vcc
GND
(in mm)
Resistance
(at +25 C)
Fan Motor
M
2. High gain simplifies circuit design
3. Free of contact noise and problems
4. Pb free plated terminations.
5. Sturdy construction resists mechanical vibration
Sensing Temp.
and shock.
(at 4.7k ohm)
125 5 C
115 5 C
105 5 C
Characteristics of Thermistors
Resistance - Temperature Characteristics
PTC Thermistor
(POSISTOR r )
BaTiO
Ceramics
NTC Thermistor
Mn-Ni, Mn-Co-Cu,
Mn-Ni + X
Ceramics
Electrode
Construction
Cross-sectional
Thermal
Contact
PRF
3
+ X
Power IC
Vref
Nickel Barrier
Maximum
Comparator
Voltage
32VDC
PTC
Ceramic
R25
R
Log
2xR25
25
R25
R
Log
Operating Temp.
25
Example
Control IC
-20 to +140 C
-20 to +130 C
-20 to +120 C
Sn Plating
T
Curie
Point
T
R01E.pdf
06.1.25