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R90E.pdf
08.8.26
sales representatives or product engineers before ordering.
• 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.
• 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.
POSISTORr for Circuit Protection
For Overheat Sensing Chip Type
e
g
e
This chip PTC Thermistor is reflow soldering SMD type
for overheat sensing for power transistors, power
diodes and power ICs in hybrid circuits.
T
s Features
1. SMD type is helpful for miniaturizing circuits
because of its small size and light weight.
2. Excellent thermal response due to small size
3. Solid-state construction provides excellent
mechanical vibration and impact resistance.
4. Contactless operation provides noiseless operation.
5. Lead is not contained in the terminations.
L
W
Dimensions (mm)
L
W
T
e
g
PRF15_RC 1.0±0.05 0.5±0.05 0.5±0.05 0.15 to 0.4 0.3 min.
PRF18_RB 1.6±0.15 0.8±0.15 0.8±0.15 0.1 to 0.6 PRF21_RA 2.0±0.2 1.25±0.2 0.9±0.2 0.2 min. 0.5 min.
Part Number
Chip Type 0402 (1005) Size
Sensing Temperature
(at 4.7k ohm)
(°C)
Maximum
Voltage
(V)
Resistance
(at 25°C)
(ohm)
Operating
Temperature Range
(°C)
PRF15BC471QB1RC
105 ±5°C
32
470 ±50%
-20 to 120
PRF15BB471QB1RC
115 ±5°C
32
470 ±50%
-20 to 130
PRF15BA471QB1RC
125 ±5°C
32
470 ±50%
-20 to 140
Part Number
This product is applied to reflow soldering. This product is recognized by UL.
Chip Type 0603 (1608) Size
Sensing Temperature
(at 4.7k ohm)
(°C)
Sensing Temperature
(at 47k ohm)
(°C)
Maximum
Voltage
(V)
Resistance
(at 25°C)
(ohm)
PRF18BG471QB5RB
65 ±5°C
80 ±7°C
32
470 ±50%
-20 to 90
PRF18BF471QB5RB
75 ±5°C
90 ±7°C
32
470 ±50%
-20 to 100
PRF18BE471QB5RB
85 ±5°C
100 ±7°C
32
470 ±50%
-20 to 110
PRF18BD471QB5RB
95 ±5°C
110 ±7°C
32
470 ±50%
-20 to 120
PRF18BC471QB5RB
105 ±5°C
120 ±7°C
32
470 ±50%
-20 to 130
PRF18BB471QB5RB
115 ±5°C
130 ±7°C
32
470 ±50%
-20 to 140
PRF18BA471QB5RB
125 ±5°C
140 ±7°C
32
470 ±50%
-20 to 150
PRF18AR471QB5RB
135 ±5°C
150 ±7°C
32
470 ±50%
-20 to 160
PRF18AS471QB5RB
145 ±5°C
-
32
470 ±50%
-20 to 160
Part Number
10
Operating
Temperature Range
(°C)
This product is applied to flow/reflow soldering.
This product is recognized by UL.
Chip Type 0805 (2012) Size
Sensing Temperature
(at 4.7k ohm)
(°C)
Maximum
Voltage
(V)
Resistance
(at 25°C)
(ohm)
Operating
Temperature Range
(°C)
PRF21BE471QB5RA
85 ±5°C
32
470 ±50%
-20 to 100
PRF21BD471QB5RA
95 ±5°C
32
470 ±50%
-20 to 110
PRF21BC471QB5RA
105 ±5°C
32
470 ±50%
-20 to 120
PRF21BB471QB5RA
115 ±5°C
32
470 ±50%
-20 to 130
PRF21BA471QB5RA
125 ±5°C
32
470 ±50%
-20 to 140
PRF21AR471QB5RA
135 ±5°C
32
470 ±50%
-20 to 150
PRF21AS471QB5RA
145 ±5°C
32
470 ±50%
-20 to 160
Part Number
This product is applied to flow/reflow soldering.
This product is recognized by UL.
66