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R01E.pdf
06.1.25
PRF18 Series Characteristics
Sensing Temp. *
(at 4.7k ohm)
Maximum
Voltage
Maximum
Current
Resistance
(at +25°C)
Part Number
Characteristics
Operating Temp.
PRF18AS471QB1RB
PRF18AR471QB1RB
PRF18BA471QB1RB
PRF18BB471QB1RB
PRF18BC471QB1RB
PRF18BD471QB1RB
PRF18BE471QB1RB
PRF18BF471QB1RB
PRF18BG471QB1RB
AS
AR
BA
BB
BC
BD
BE
BF
BG
145±5°C
135±5°C
125±5°C *
115±5°C *
105±5°C *
95±5°C *
85±5°C *
75±5°C
-20 to +160°C
-20 to +150°C
-20 to +140°C
-20 to +130°C
-20 to +120°C
-20 to +110°C
-20 to +100°C
-20 to + 90°C
-20 to + 80°C
470 ohm ±50%
32VDC
30mA
65±5°C
* Also available with tolerance ±3°C
Rating (0603) - Lead Free Terminations Type and UL1434 (except BF, BG types)
Sensing Temp.
(at 4.7k ohm)
Maximum
Voltage
Resistance
(at +25°C)
Part Number
Characteristics
BA
Operating Temp.
PRF18BA473QB1RB
-20 to +140°C
470k ohm ±50%
130±5°C
32VDC
Low Current Consumption!
Dimensions
Electrode
Construction
Cross-sectional
PTC
Ceramic
0.8±0.15
0.1-0.6
(in mm)
Nickel Barrier
Sn Plating
0.8±0.15
1.6±0.15
Circuit Examples
The POSISTORr has the
following advantages over
Bimetal devices.
POSISTORr
Bimetal
1. Noise free
PRF
2. No contact problems
3. Low price
POSISTORr
Zener Diode
The POSISTORr has the
following additional advantages
over Zener Diodes.
PRF
-
+
1. Reduced numbers of parts
used in circuits
2. Reduced process costs of
mounting parts on PCBs
Zener Diode
POSISTORr
2
2
Mounting Area
Parts
10x10 = 100mm
Parts
6x6 = 36mm
Parts
UPS
UPS
3. Reduces occupied space,
helping high density PCB
mounting
Diode
1
2
7
1
POSISTORr
Transistor
Resistor
1
1
2
0
Transistor
Resistor
Op. Amp.
Op. Amp.
Total
11
Total
4
MURATA [ muRata ]
