Thermistor Temperature Sensors
(Automobile use)
E R T
nExplanation of Part Numbers
This is used as a temperature detector for temperature
control or temperature indication of heating parts for
automobiles and industrial equipment. Owing to
its sealed construction and high vibration resistance,
it has high precision in temperature detection.
Various types are available in accordance with
application.
nFeatures
lSuperiorly high precision in temperature detecting
lHighly reliable sealed construction
lHigh vibration resistance and easy installation
Thermistor Temperature Sensors
Type:ERTW
ERTS
ERTA
nRecommended Applications
lAutomobiles
lBoats
lAgricultural machines
lBoilers
Thermistor Temperature Sensors
(Automobile use)
Item
Type
ERTW208P Type ERTW208G Type
W208P Series W208G Series
Appearance
Dimensions in mm
(not to scale)
Temperature (¡C) Resistance (W)
80.0±0.2 118±6
105.0±0.3 42.0±2.5
Temperature (¡C) Resistance (W)
80.0±0.2 118±6
105.0±0.3 42.0±2.5
60 mW/¡C
300 mW
Ð30 to +130 ¡C
60 mW/¡C
300 mW
Ð30 to +130 ¡C
Resistance
Heat Dissipation
Constant
Maximum
Permissible Power
Operating
Temperature Range
nRatings and Characteristics
Thermistor Temperature Sensors
(Automobile use)
Item
Type
ERTW101P Type ERTW101G Type
W101 Series
Appearance
Dimensions in mm
(not to scale)
ERTW101P801 ERTW101G461
Temperature (¡C) Resistance (W)
50.0±0.2 226.0+33.6
115.0±0.3 26.40+1.71
Ð36.6
Ð2.21
Temperature (¡C) Resistance (W)
80.0±0.2 51.9+4.9
100.0±0.3 27.4+1.9
60 mW/¡C
300 mW
Ð30 to +130 ¡C
60 mW/¡C
300 mW
Ð30 to +130 ¡C
Resistance
±±
±±
Ð4.4
Ð1.2
Heat Dissipation
Constant
Maximum
Permissible Power
Operating
Temperature Range
nRatings and Characteristics
Thermistor Temperature Sensors
(Automobile use)
Item
Type
ERTS07D202C ERTS08D202B
S07 Series S08 Series
Appearance
Dimensions in mm
(not to scale)
Temperature (¡C) Resistance (kW)
Ð20.0±0.2 16.1±1.6
20.0±0.2 2.37±0.24
80.0±0.2 0.290±0.032
Ñ
10 mW
Ð30 to +120 ¡C
Resistance
Temperature (¡C) Resistance (kW)
Ð20.0±0.2 15.48±1.35
20.0±0.2 2.45±0.14
110.0±0.2 0.1471±0.002
Ñ
10 mW
Ð30 to +120 ¡C
±
Heat Dissipation
Constant
Maximum
Permissible Power
Operating
Temperature Range
nRatings and Characteristics
Thermistor Temperature Sensors
(Automobile use)
Item
Type
ERTA57D202 ERTA59D202
A57 Series A59 Series
Appearance
Dimensions in mm
(not to scale)
Temperature (¡C) Resistance (kW)
20.0±0.2 2.5±0.075
80.0±0.2 0.325
Ñ
10 mW
Ð30 to +150 ¡C
Resistance
Temperature (¡C) Resistance (kW)
Ð20.0±0.2 17.9±2.7
40.0±0.2 1.16±0.12
100.0±0.2 0.156±0.008
Ñ
10 mW
Ð30 to +120 ¡C
Heat Dissipation
Constant
Maximum
Permissible Power
Operating
Temperature Range
nRatings and Characteristics
+0.023
-0.022
Thermistor Temperature Sensors
(Automobile use)
nTest Circuit Diagram and Resistance vs. Temperature
ERTW101P801
Test Circuit Diagram
ERTW101G461
Test Circuit Diagram
ERTW208P(G)112
Ω
Ω
Ω
Ω
nApplication Notes
lOperate the sensor under the specified maximum
permissible electric power. Otherwise, it generates
heat, which may cause malfunction and deterioration
in the characteristics.
lResistance values of the sensor shall be measured
by the specified measuring circuit, described in the
individual specification.
lDo not operate the sensor above the Operating
Temperature Range.
lWhen attaching the sensor with a screw, do not touch
the terminal area. Do not apply excessive torque and
pressure when screwing, otherwise they will damage
the product and malfunction.
lThe sensor may be damaged or deteriorated when
dropped or exposed to a large impact. Excessive
shock and impact shall not be applied.
Test Circuit Diagram
