PRF18BD471QB1RB Murata, PRF18BD471QB1RB Datasheet - Page 58

• Manufacturer Part Number: PRF18BD471QB1RB
• Description: PTC THERMISTOR
• Manufacturer: Murata
• Series: PRF18r
• Type: PTCr

Specifications of PRF18BD471QB1RB

• Thermistor Type: PTC
• Resistance: 470ohm
• Thermistor Tolerance: ± 50%
• Operating Temperature Range: -20°C To +110°C
• Operating Voltage Range: 32VDC
• Thermistor Case Style: 0603
• No. Of Pins: 2
• Length/height, External: 1.6mm
• Tolerance: 50 %
• Termination Style: SMD/SMT
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

!Note
!Note
This chip PTC Thermistor is reflow soldering SMD type
for overheat sensing for power transistors, power
diodes and power ICs in hybrid circuits.
1. SMD type is helpful for miniaturizing circuits
2. Excellent thermal response due to small size
3. Solid-state construction provides excellent
4. Contactless operation provides noiseless operation.
5. Lead is not contained in the terminations.
PRF18_RB1RB series is an improvement on sensing
accuracy from existing PRF18_QB1RB series.
1. Sensing accuracy +/-3 deg.C which is highest of
2. Same resistance-temperature characteristics as
3. SMD type is helpful for miniaturizing circuits
4. Excellent thermal response due to small size
5. Solid-state construction provides excellent
6. Contactless operation provides noiseless operation.
7. Lead is not contained in the terminations.
Chip Type 0603 (1608) Size
PRF18BG471QB1RB
PRF18BF471QB1RB
PRF18BE471QB1RB
PRF18BD471QB1RB
PRF18BC471QB1RB
PRF18BB471QB1RB
PRF18BA471QB1RB
PRF18AR471QB1RB
PRF18AS471QB1RB
This product is applied to reflow soldering. Please consult us for flow soldering usage.
Chip Tight Tolerance Type 0603 (1608) Size
POSISTORr for Circuit Protection
for Overheat Sensing Chip Type
Features
because of its small size and light weight.
mechanical vibration and impact resistance.
Features
PTC Thermistor and the same level as NTC at
sensing point.
PRF18_QB1RB series.
Easy to use higher accurate sensing type.
because of its small size and light weight.
mechanical vibration and impact resistance.
• 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.
Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
This catalog has only typical specifications. Therefore, you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering.
Part Number
Sensing Temperature
(at 4.7k ohm)
105 5 C
115 5 C
125 5 C
135 5 C
145 5 C
65 5 C
75 5 C
85 5 C
95 5 C
( C)
Maximum
Voltage
(V)
32
32
32
32
32
32
32
32
32
Resistance
470 50%
470 50%
470 50%
470 50%
470 50%
470 50%
470 50%
470 50%
470 50%
(at 25 C)
(ohm)
Part Number
PRF18_RB
PRF21_RA
Part Number
PRF18_RB
PRF21_RA
e
e
1.6 0.15 0.8 0.15 0.8 0.15 0.1 to 0.6
1.6 0.15 0.8 0.15 0.8 0.15 0.1 to 0.6
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 0.9 0.2 0.2 min. 0.5 min.
L
L
g
L
g
L
Dimensions (mm)
Dimensions (mm)
Temperature Range
W
W
e
e
-20 to 100
-20 to 110
-20 to 120
-20 to 130
-20 to 140
-20 to 150
-20 to 160
-20 to 80
-20 to 90
R90E7.pdf 05.3.30
T
T
( C)
W
W
e
e
g
g
-
-
57
9