PRF18BE471RB5RB datasheet(88/104 Pages) MURATA

88 / 104 page

Temperature Sensor Lead Type Speciﬁcations and Test Methods

POSISTOR

r is set in an environmental chamber at 85±3°C with

maximum voltage applied for 1.5 hours and then is left without

voltage applied for 0.5 hours.

This cycle is repeated for 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 POSISTOR

r must be limited below max. rated

value.)

High Temperature Load

ΔR/R25VT20%

POSISTOR

r is set in an environmental chamber at 40±2°C

and 90-95% humidity for 500±4 hours.

And after the device is left at room temperature (25°C) for one

hour, the resistance measurement is performed.

Damp Heat

ΔR/R25VT20%

The lead wire of POSISTOR

r is soaked in molten solder (JIS Z

3282 H60A) at 350±10°C from the bottom to a point of 2.0-2.5

mm for 3.5±0.5 seconds. And, after the device is left at room

temperature (25°C) for 24±4 hours, the resistance is measured.

Terminal Durability of

Soldering

ΔR/R25VT15%

The lead wire of POSISTOR

r is soaked in a Isopropyl Alcohol

(JIS K 8839) or ethanol (JIS K 8101) 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.

Solderability

Solder is applied around the lead wire covering

3/4 or more of the circumference without gap in

the axial-direction.

POSISTOR

r is held so that it is perpendicular to the lead wire

with the following load hanging in the axial direction of the lead

wire. The lead wire is slowly bent to 90° and returned; then it is

slowly bent in the opposite direction and returned to original state.

(Above mentioned procedure is done slowly with one cycle.)

Bending Strength of

Lead Wire Terminal

Lead wire does not come off.

The load is gradually applied to each terminal of POSISTOR

until 4.90N in the axial-direction with fixing POSISTOR

r's body

itself and this load is kept for 10 seconds.

Tensile Strength of

Lead Wire Terminal

No damage

We apply AC voltage 120% that of the maximum voltage to

POSISTOR

r 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 POSISTOR

r must be limited below max.

rated value.)

Withstanding Voltage

No problem

Resistance value is measured by applying voltage under 1.5Vdc

(by a direct current of less than 10mA) in a silicone oil vessel.

Resistance Value

Satisfies specification

Series

Force

2.45N

4.90N

PTFL

PTFM

No.

Method of Examination

Rating Value

Item

PTH

S.W

Test circuit

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.

PRF18BE471RB5RB Datasheet(PDF) 88 Page - Murata Manufacturing Co., Ltd.

PRF18BE471RB5RB Datasheet(HTML) 88 Page - Murata Manufacturing Co., Ltd.

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