PRF21BB471QB5RA Murata, PRF21BB471QB5RA Datasheet - Page 90
![Thermistors - PTC 470 Ohm 50% 32volts](/photos/16/24/162482/nthcp04_sml.jpg)
PRF21BB471QB5RA
Manufacturer Part Number
PRF21BB471QB5RA
Description
Thermistors - PTC 470 Ohm 50% 32volts
Manufacturer
Murata
Type
PTCr
Datasheet
1.PRF21BB471QB5RA.pdf
(100 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PRF21BB471QB5RA
Manufacturer:
MURATA
Quantity:
240 000
12
!Note
88
!Caution/Notice
(2) Reflow soldering conditions
(3) There may be a risk of unexpected failures
Continued from the preceding page.
The following figure and table show our recommended
reflow profile.
(a) Insufficient preheating may cause a crack on
(b) The excessive soldering conditions may cause
(c) Rapid cooling by dipping in solvent or by other
(d) Please evaluate it on your condition if you will do
(tombstone, insufficient solder-wetting, etc.) in the
mounting process, caused by the mounting conditions.
Please make sure that this product is correctly
mounted under specified mounting conditions.
• 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.
ceramic body. The temperature difference between
preheat and peak should be control within 100 C to
prevent this.
dissolution of metallization or deterioration of solder-
wetting on the external electrode.
means is not recommended.
mounting using not applying condition to the above-
mentioned.
Temp. ( C)
Preheat
Soldering Time (U220 C)
Peak Temp.
Reflow Cycle
270 C
250 C
220 C
180 C
150 C
90 30s
Standard Profile
Max. 2 times
30 to 60s
250 C
150 to 180 C, 90 30s
30 to 60s
90s
Limit Profile
Max. 2 times
Standard Profile
270 C
Limit Profile
90s
Time (s)
Apr.25,2011
R90E.pdf