PRF21BE471QB2RA Murata, PRF21BE471QB2RA Datasheet - Page 71

• Manufacturer Part Number: PRF21BE471QB2RA
• Description: Thermistors - PTC 470 OHM 32V
• Manufacturer: Murata
• Type: PTCr
• Series: PRF21r

Specifications of PRF21BE471QB2RA

• Resistance: 470 Ohms
• Tolerance: 5 %
• Termination Style: SMD/SMT
• Operating Temperature Range: - 20 C to + 110 C
• Current Rating: 0.1 mAmp
• Dimensions: 1.25 mm W x 2 mm L
• Voltage: 140 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

!Note
Part Number
PRF15
PRF18
PRF21
Standard Land Pattern Dimensions
Overheat Protection Circuit
• 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 review our product specifications or consult the approval sheet for product specifications before ordering.
Reflow Soldering
PTH
Soldering
Methods
R
R
b
1
2
Thermal
Connection
Chip (LgW)
Chip
2.0g1.25
a
1.0g0.5
1.6g0.8
R
R
E
L
Dimensions (mm)
Land
0.6-0.8 0.6-0.7 0.6-0.8
1.0-1.2 0.5-0.7 1.0-1.2
Solder resist
0.5
a
Vcc
0.4-0.5
b
(in mm)
0.5
c
Overheat Sensing Chip Type (Related Data)
Resistance - Temperature Characteristics (Typical)
Temperature Sensing Circuit
1000
100
0.1
10
1
PTH
–20
0
R
1
20
40
R
R
R
L1
E1
L2
Temperature ( C)
60
80
BG
R
100
E2
Load
BF
BE
120
BD
Vcc
BC
140
BB
BA
160
AR
AS
69
Apr.25,2011
R90E.pdf
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