PRF18BE471RB5RB datasheet(68/104 Pages) MURATA

68 / 104 page

PTGL Series Speciﬁcations and Test Methods

POSISTOR

r 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 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.)

Load Cycle Test at

High Temperature

ΔR/R25<=±20%

POSISTOR

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

and 90 to 95% humidity for 500±4 hours. After the device is left

at room temperature (25°C) for one hour, the resistance

measurement is performed.

Humidity Test

ΔR/R25<=±20%

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 to

2.5mm for 3.5±0.5 sec. After the device is being left at room

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

Terminal Durability

of Soldering

ΔR/R25<=±15%

The Lead wire of POSISTOR

r is soaked in an 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.

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 lead 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.

Bending Strength of

Lead Wire Terminal

Lead wire does not come off.

The load is gradually applied to each terminal of POSISTOR

until the force of the following table in the axial direction with

fixing POSISTOR

r's body itself and this load is being kept for

10 seconds.

Tensile Strength of

Lead Wire Terminal

No damage

We apply AC voltage 120% (16V Series: 110%) 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) 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 probes should be connected

on the lead wire at the point within 2mm from the below side of

the forming.

Resistance should be measured by 4 wiring method.

Resistance Value

(at 25°C)

Satisfies ratings

The temperature range with maximum voltage applied to the

POSISTOR

Continuous Operating

Temperature

-10 to +60 °C

Lead Diameter

Force

4.90N

9.80N

ø0.60mm max.

ø0.65mm min.

Lead Diameter

Force

2.45N

4.90N

ø0.60mm max.

ø0.65mm min.

Method of Examination

Rating Value

Item

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) 68 Page - Murata Manufacturing Co., Ltd.

PRF18BE471RB5RB Datasheet(HTML) 68 Page - Murata Manufacturing Co., Ltd.

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