PRF21BB471QB5RA Murata, PRF21BB471QB5RA Datasheet - Page 24

• Manufacturer Part Number: PRF21BB471QB5RA
• Description: Thermistors - PTC 470 Ohm 50% 32volts
• Manufacturer: Murata
• Type: PTCr

Specifications of PRF21BB471QB5RA

• Resistance: 470 Ohms
• Tolerance: 50 %
• Termination Style: SMD/SMT
• Operating Temperature Range: - 20 C to + 130 C
• Dimensions: 1.25 mm W x 2 mm L x 0.9 mm H
• Voltage: 32 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2
!Note
This product is a leaded type PTC thermistor
for overcurrent protection which is suitable for
a current limiting resistor.
1. Small fluctuation in the circuit due to resistance
2. Narrow current range (less than twice) between
3. Quick operating time due to small size compared
4. Best suited to meet the requirements for power
5. Circuit is protected until current is turned off.
6. Restores the original low resistance value
7. Non-contact design leads to long life and no noise.
22
PTGL04AS100K2N51B0
PTGL04AS100K2B51B0
PTGL05AS3R9K2B51B0
PTGL07AS2R7K2B51B0
PTGL07AS1R8K2B51B0
PTGL09AS1R2K2B51B0
PTGL12AS0R8K2B51B0
Maximum Current shows typical capacities of the transformer which can be used.
30V Series is recognized by UL.
Taping type is also available. Please refer to the page of "Package" information for details.
POSISTORr for Circuit Protection
Overcurrent Protection Narrow Current Band 30V Series
Features
tolerance +/-10%
operating and non-operating current at -10 to
60 degrees C.
with conventional products.
supplies and motor protection. Error-free operations
are assured by rush current.
automatically once the overload is removed.
Durable and strong against mechanical vibration
and shock because it is a solid element.
Protective Threshold Current Range
280
240
200
160
120
• 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.
80
40
0
Part Number
-20
Hold current
PTGL04AS100K2N51B0
0
Protective threshold
Voltage
Ambient Temperature ( C)
Max.
30
30
30
30
30
30
30
(V)
20
Hold Current
(at +60 C)
current
(mA)
122
167
269
336
420
556
685
40
Trip current
Hold Current
(at +25 C)
60
(mA)
154
212
340
425
532
704
867
Trip Current
80
(at +25 C)
1153
(mA)
205
282
452
565
708
936
Trip Current
(at -10 C)
1097
1352
(mA)
240
330
530
663
829
Current
Max.
1.5
2.0
3.5
4.5
5.0
6.0
7.0
(A)
400
300
200
100
0
3.9 10%
2.7 10%
1.8 10%
1.2 10%
0.8 10%
Resistance
10 10%
10 10%
(at +25 C)
(ohm)
-20
Hold current
PTGL04AS100K2B51B0
Diameter
(D)(mm)
0
Body
11.5
4.5
4.5
5.5
7.3
7.3
9.3
Protective threshold
F 1.5
Ambient Temperature ( C)
D max.
20
Thickness
(mm)
3.5
3.5
3.5
3.5
3.5
3.5
3.5
(T)
current
Continued on the following page.
40
Trip current
Height
(mm)
10.5
12.3
12.3
14.3
16.5
9.5
9.5
(H)
60
(F)(mm)
Space
Lead
5.0
5.0
5.0
5.0
5.0
5.0
5.0
T max.
80
(phi d)(mm)
Diameter
d 0.05
(in mm)
Lead
0.5
0.6
0.6
0.6
0.6
0.6
0.6
Apr.25,2011
R90E.pdf