PRF18BE471RB5RB datasheet(83/104 Pages) MURATA

83 / 104 page

Overheat Sensing Chip Type Speciﬁcations and Test Methods

Soldered PTC to PCB. (**)

85±2°C (in air), load max. operating voltage

for 1000±12 hours

High Temperature Load

Soldered PTC to PCB. (**)

+40±2°C, 90-95%RH leave for 500±8 hours

Damp Heat

JIS C 5102 term 9.3

Soldered PTC to PCB. (**)

Times: 5 cycles

Temperature Cycling

Soldered PTC to PCB. (**)

-20±3°C leave for 1000±12 hours

Cold

Soldered PTC to PCB. (**)

150±2°C leave for 1000±12 hours

Dry Heat

Normal appearance

Resistance change: not to exceed ±20% (*)

JIS C 60068-2-20 (1996)

Solder temp.: 260±5°C

Solder: Sn63%/Pb37% (or 60%/40%)

Flux: containing less than 0.2wt% of chlorine

Soaking time: 10±0.5 seconds

Soaking position: Until a whole electrode is soaked.

Preheating: 150±5°C, 3 minutes

Soldering Heat Resistance

Resistance change: not to exceed ±20% (*)

JIS C 60068-2-20(1996)

Solder temp.: 230±5°C

Solder: Sn63%/Pb37% (or 60%/40%)

Soaking time: 3±0.5 seconds

Soaking position: Until a whole electrode is soaked.

Solderability

Min. 95% electrode is covered with new solder.

Resistance change: not to exceed ±20% (*)

JIS C 5102 term 8.2

Soldered PTC to PCB (**)

Vibration: 10-55-10Hz (1 min.)

Width: 1.5mm

Vibrate for 2 hours. in each of 3 mutually

perpendicular plane for a total of 6 hours

Vibration Resistance

Normal appearance

Resistance change: not to exceed ±20% (*)

EIAJ ET-7403 term 9

Prepare soldered PTC to PCB (**)

and add the force of 5.0N in the direction as shown below.

(PTC=POSISTOR

Adhesive Strength

There is no sign of exfoliation on electrode.

After applying max. operating voltage for 3 minutes and

leaving for 2 hours in 25°C, measured by applying voltage less

than 1.5VDC. (by a direct current less than 10mA).

Resistance Value (25°C)

The resistance value shall be within the specified

tolerance.

(*) The resistance measurement after the test.

It is measured by applying voltage less than 1.5VDC.

(by a direct current less than 10mA.) after left at 25±2°C for 2 hours.

(**) Above mentioned soldering is done under the following conditions at our side.

Above conditions are mentioned in Notice.

No.

Test Condition

Specification

Item

Temp. (°C)

Step

-20+0, -3

room temp.

+150+3, -0

room temp.

Time (min.)

10 to 15

PTC

c PRF18/21_471Q Series

R90E.pdf

Sep.24,2012

!Note • 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. Therefore, please approve our product speciﬁcations or transact the approval sheet for product speciﬁcations before ordering.

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