PRF18BD471QB1RB Murata, PRF18BD471QB1RB Datasheet - Page 57

• 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

8
!Note
!Note
56
Continuous Operating
Temperature
Resistance Value
(at 25°C)
Withstanding Voltage
Tensile Strength of
Lead Wire Terminal
Bending Strength of
Lead Wire Terminal
Solderability
Terminal Durability
of Soldering
Humidity Test
Load Cycle Test at
High Temperature
PTGL Series Specifications and Test Methods
• 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
Satisfies ratings
No problem
No damage
Lead wire does not come off
Solder is applied around the lead wire covering 3/4 or more of
the circumference without gap in the axial direction.
∆R/R25
∆R/R25
∆R/R25
<
<
<
=
=
=
±15%
±20%
±20%
Rating Value
The temperature range with maximum voltage applied to the
POSISTORr.
Resistance value is measured by applying voltage under
1.5Vdc (by a direct current of less than 10mA) at 25°C.
(But it must be measured after maximum voltage is applied for
180 seconds and then is left for 2 hours at 25°C.)
As for 16V series, measurement probe should be connected on
the lead wire at the point within 2mm from the below side of the
forming. Resistance should be measured 4 wing method.
We apply AC voltage 120% that of the maximum voltage to
POSISTORr by raising voltage gradually for 180±5 seconds at
25°C. (A protective resistor is to be connected in series, and
the inrush current through POSISTORr must be limited below
max. rated value.)
The load is gradually applied to each terminal of POSISTORr
until the force of the following table in the axial direction with
fixing POSISTORr's body itself and this load is being kept for
10 seconds.
POSISTORr is held so that it is perpendicular to the lead wire
with the following lead hanging in the axial direction of the lead
wire. The lead wire is slowly bent toward 90° and returned.
Then it is slowly bent in the opposite direction and returned to
original state.
The Lead wire of POSISTORr is soaked in a Isopropyl alcohol
(JIS K 8839) or ethanol (JIS K 8101) solution (about 25wt%) of
colophony (JIS K 5902) for 5 to 10 sec. And, each lead wire is
soaked in Molten solder (JIS Z 3282 H60A) at 235±5°C from
the bottom to a point of 2.0 to 2.5mm for 2±0.5 sec.
The lead wire of POSISTORr is soaked in Molten solder (JIS Z
3282 H60A) at 350±10°C from the bottom to a point of 2.0 to
2.5mm for 3.5±0.5 sec. And, after the device is being left at
room temperature (25°C) for 24±4 hours, the resistance is
measured.
POSISTORr is set in an environmental chamber at 40±2°C
and 90 to 95% humidity for 500±4 hours. And after the device
is being left at room temperature (25°C) for one hour, the resis-
tance measurement is performed.
POSISTORr is set in an environmental chamber at 60±3°C
with maximum voltage applied for 1.5 hours and then is left
without voltage applied for 0.5 hours. This cycle is repeatedfor
1000±10 hours, and after the device is left at room temperature
(25°C) for one hour, the resistance measurement is performed.
(A protective resistor is to be connected in series and the
inrush current through POSISTORr must be limited below
max. rated value.)
Lead Diameter
ø0.60mm max.
Lead Diameter
ø0.60mm max.
ø0.65mm min.
ø0.65mm min.
Method of Examination
R90E7.pdf 05.3.30
Force
4.90N
9.80N
Force
2.45N
4.90N