PRF18BD471QB1RB Murata, PRF18BD471QB1RB Datasheet - Page 14

• 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
No.
11
10
12
(*) The resistance measurement after the test.
Above mentioned soldering in "4. Adhesive Strength" and "5. Vibrationability" is done under the following conditions at our site.
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2
3
4
5
6
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8
9
Specifications and Test Methods
6V Series
After leaving for 24 hours. or more in 25±2°C, it measures by 4 wire measuring methods using the direct-current terminal current of 10mA or less (0.1 or
less Vdcs).
#Glass-Epoxy PC board
#Recommendable land dimension
#Recommendable solder paste
#Recommendable solder profile
Above conditions are mentioned in Notice.
Operating Temp.
Resistance Value (at 25°C)
Withstanding Voltage
Adhesive Strength
Vibrationability
Solderability
Solder-heatability
High Temperature Test
Low Temperature Test
Humidity Test
Temperature Cycling
High Temperature
Load Test
• 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.
Item
-10 to 60°C
The resistance value should be within the specified
tolerance.
Without damage
There is no exfoliation sign of electrode.
Normal appearance
Resistance change: not exceed ±20% (*)
Min. 75% electrode is covered with new solder.
Resistance change: not exceed ±20% (*)
Normal appearance
Resistance change: not exceed ±20% (*)
Normal appearance
Resistance change: not exceed ±20% (*)
Rating Value
Chip Type Specifications and Test Methods
Temperature range with maximum voltage applied to PTC.
After leaving for 24 hrs. or more in 25°C, it measures by 4 wire
measuring methods using the direct-current terminal current of
10mA or less (0.1 or less Vdcs).
We apply 120% of the maxi. operating voltage to PTC by rising
gradually for 180±5 secs. at 25°C. (A protective resistor is to be
connected in series, and the inrush current through PTC must
be limited below max. rated value.)
EIAJ ET-7403 term 9
Soldered PTC to PCB and add the force of 5.0N in the direction
as shown below.
JIS C 5102 term 8.2
Vibrate for 2 hrs. in each of 3 mutually perpendicular plane for
a total of 6 hrs.
JIS C 5102 term 8.4
60±3°C leaves for 1000±10 hrs.
-10±3°C leaves for 1000±10 hrs.
60±2°C, 90-95%RH leaves for 500±4 hrs.
JIS C 5102 term 9.3
Times: 5 cycles
60±3°C (in air), PTC is applied max. operating voltage for 1.5
hrs. on and 0.5 hrs. off. This cycle is repeated for 500±4 hrs.
Soldered PTC to PCB
Vibration: A 10-55-10Hz (1 min.)
Width: 1.5mm
Solder: Sn 63%/Pb 37% (or 60/40%)
Solder temp: 230±5°C
Soaking time: 3±0.5 secs.
Soaking position: Until a whole electrode is soaked.
Solder: Sn 63%/Pb 37% (or 60/40%)
Flax: Solder paste containing less than 0.2wt% of chlorine.
Preheating: 150±5°C 3mins.
Peak temp.: 260±5°C 10±5 secs. (reflow)
PCB: Glass Epoxy PCB (JIS C 6484)
Step
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2
3
4
Room temp.
Room temp.
Temp. (°C)
+85 +3, -0
-20 +0, -3
Method of Examination
PTC
F
Time (min.)
10-15
10-15
30
30
Glass Epoxy PCB
F=5.0N
R90E7.pdf 05.3.30
F
13
1