PRF18AS471QS2RB Murata, PRF18AS471QS2RB Datasheet - Page 51

• Manufacturer Part Number: PRF18AS471QS2RB
• Manufacturer: Murata

Specifications of PRF18AS471QS2RB

• Lead Free Status / RoHS Status: Compliant

6
!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
50
No.
10
11
12
13
POSISTORr Lead Type for Overheat Protection Specifications and Test Methods
1
2
3
4
5
6
7
8
9
30-140V Series
Operating Temperature 1
Operating Temperature 2
Resistance (R25)
Withstanding Voltage
Protective Threshold Current
Tensile Strength of Lead
Wire Terminal
Bending Strength of Lead
Wire Terminal
Solderability
Terminal Durability of
Soldering
Vibration Resistant
Heat Resistant
Cold Resistant
Resistance to Damp Heat
• 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.
Item
-30 to +125°C
-40 to +125°C
Satisfies ratings
No problem
Satisfies ratings
(Trip Current, Non-operating Current)
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/R25V±15%
∆R/R25V±20%
∆R/R25V±20%
∆R/R25V±20%
∆R/R25V±20%
Rating Value
The temperature range with maximum voltage applied to the
POSISTORr.
The temperature range with following voltage applied to the
POSISTORr.
<applied voltage>
30V and 51V series: max. 16V, 60V series: max. 30V, 140V
series: max. 140V
Resistance value is measured by applying voltage under
1.0Vdc (by a direct current of less than 10mA) at 25°C. (But it
must be measured after it is applied maximum voltage for 180
seconds and then is left for 2 hours at 25°C.)
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.)
Maximum current measured in this examination. Voltage is
applied to POSISTORr in 3 minutes step by step on still air
based on “Protective Threshold Current Test Conditions”
shown in next page. Stable current is measured at each step.
The load is gradually applied to each terminal of POSISTORr
until the force of 4.9N 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 2.45N 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) solution (about 25wt%) of colophony (JIS K 5902)
for 5-10 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
2.0-2.5mm for 2±0.5 seconds.
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-
2.5mm for 3.5±0.5 sec.
After the device is left at room temperature (25°C) for 24±4
hours, the resistance is measured.
Acceleration: 98m/s
Width: 1.5mm
Vibration: 10-500-10Hz
Vibrate for 11minutes Z 24 cycles in each of 3 mutually
perpendicular planes for a total of 13.5 hours.
POSISTORr is set in an environmental chamber at 125±3°C
for 1000±12 hours. After the device is left at room temperature
(25°C) for one hour, the resistance measurement is performed.
POSISTORr is set in an environmental chamber at -40±3°C
for 1000±12 hours. After the device is left at room temperature
(25°C) for one hour, the resistance measurement is performed.
POSISTORr is set in an environmental chamber at 85±3°C
and 80-85% humidity for 1000±12 hours. After the device is left
at room temperature (25°C) for one hour, the resistance
measurement is performed.
Method of Examination
2
(10G)
Continued on the following page.
R03E.pdf
07.3.21