PRF18BD471QB1RB Murata, PRF18BD471QB1RB Datasheet - Page 11

• 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
• 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
Resistance-Temperature Characteristics
Overheat Protection Circuit
Resistance-Temperature Characteristics Range (Ref. Only)
• 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.
10
10
10
10
4
3
2
20
10
10
10
10
PTH
1
4
3
2
20
0
PTF_04BH471Q2N34B0
0
R
R
1
2
20
Thermal
Connection
20
40
Temperature (˚C)
Temperature (˚C)
40
BH
BG
60
BF
BE
60
BD
BC
R
R
BB
E
L
80
80
100
100
120
120
Vcc
140
140
Example of Thermal Response Time
Overheat Sensing Circuit
Relation between resistance change and time after POSISTORr
PTFM04BE222Q2N34B0 is installed on the part heated at a constant
temperature of 90 C (3mm thick alminum sheet) is shown in the figure below.
PTH
10
10
10
10
100
4
3
2
20
80
60
40
20
0
Operating Time of POSISTORr
0
R
1
0
PTF_04BG471Q2N34B0
10
20
R
40
20
R
Temperature (˚C)
R
L1
E1
L2
Aluminum plate
T=90 C constant
60
PTFM04BE222Q2N34B0
POSISTORr
Screw
Time (sec.)
30
Continued on the following page.
80
40
R
100
E2
Load
R meter
50
120
Heater
Vcc
140
60
R90E.pdf
67
06.3.31
11