PRF18BE471RB5RB datasheet(73/104 Pages) MURATA

73 / 104 page

POSISTOR

r for Circuit Protection

Overheat Sensing Chip Type

This chip PTC Thermistor is a reﬂow soldering SMD type

for overheat sensing for power transistors, power

diodes and power ICs in hybrid circuits.

c Features

1. SMD type is helpful for miniaturizing circuits

because of its small size and light weight.

2. Excellent thermal response due to small size

3. Solid-state construction provides excellent resistance

to mechanical vibration and impact resistance.

4. Contactless operation provides noiseless operation.

Part Number

Dimensions (mm)

1.6±0.15

2.0±0.2

0.8±0.15

1.25±0.2

0.8±0.15

0.9±0.2

0.1 to 0.6

0.2 min.

0.5 min.

PRF18_RB

PRF21_RA

Chip Type 0603 (1608) Size

Part Number

Sensing Temperature

(at 4.7k ohm)

(°C)

Sensing Temperature

(at 47k ohm)

(°C)

Maximum

Voltage

(V)

Resistance

(at 25°C)

(ohm)

Operating

Temperature Range

(°C)

PRF18AS471QB5RB

145 ±5°C

470 ±50%

-20 to 160

PRF18AR471QB5RB

135 ±5°C

150 ±7°C

470 ±50%

-20 to 160

PRF18BA471QB5RB

125 ±5°C

140 ±7°C

470 ±50%

-20 to 150

PRF18BB471QB5RB

115 ±5°C

130 ±7°C

470 ±50%

-20 to 140

PRF18BC471QB5RB

105 ±5°C

120 ±7°C

470 ±50%

-20 to 130

PRF18BD471QB5RB

95 ±5°C

110 ±7°C

470 ±50%

-20 to 120

PRF18BE471QB5RB

85 ±5°C

100 ±7°C

470 ±50%

-20 to 110

PRF18BF471QB5RB

75 ±5°C

90 ±7°C

470 ±50%

-20 to 100

PRF18BG471QB5RB

65 ±5°C

80 ±7°C

470 ±50%

-20 to 90

This series is applied to ﬂow/reﬂow soldering.

This series is recognized by UL.

Chip Type 0805 (2012) Size

Part Number

Sensing Temperature

(at 4.7k ohm)

(°C)

Maximum

Voltage

(V)

Resistance

(at 25°C)

(ohm)

Operating

Temperature Range

(°C)

PRF21AS471QB5RA

145 ±5°C

470 ±50%

-20 to 160

PRF21AR471QB5RA

135 ±5°C

470 ±50%

-20 to 150

PRF21BA471QB5RA

125 ±5°C

470 ±50%

-20 to 140

PRF21BB471QB5RA

115 ±5°C

470 ±50%

-20 to 130

PRF21BC471QB5RA

105 ±5°C

470 ±50%

-20 to 120

PRF21BD471QB5RA

95 ±5°C

470 ±50%

-20 to 110

PRF21BE471QB5RA

85 ±5°C

470 ±50%

-20 to 100

This series is applied to ﬂow/reﬂow soldering.

This series is recognized by UL.

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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