Thermometrics
Thermistors
For Fast, Dependable Service, Make Just One Call Ñ 1-800-433-5700 ALLIED
c
675
Precision Thermistors ±0.2¡C from 0¡C to 75¡C
ThermometricÕs precision units are the designersÕ choice for low cost, close-tolerance temperature measurement. These ultrastable thermistors are accurate to
±0.2¡C from 0¡C to 75¡C. They are widely used in OEM applications because they offer close-tolerance temperature measurement without requiring individual
calibration. A protective coating is standard for all precision thermistors listed in the table below.
Stock Mfr.Õs R
O
@ 25¡C a@ 25¡C Material
No. Type ½ (%/¡C)
A
In. mm In. mm AWG In. mm
BCD J
(mW/¡C)
t
(sec.)
837-5115 RL1005-2910-97-SP 5 K Ð4.4 P97 0.160 4.06 0.180 4.57 26 0.100 2.54 1.0 10 8.93 7.07
837-5126 RL1008-5820-97-SP 10 K Ð4.4 P97 0.160 4.06 0.200 5.08 26 0.100 2.54 1.0 10 6.72 5.22
NTC Thermistors
Negative temperature coefficient thermistors decrease in resistance as temperature increases. Temp. coefficients range
from Ð2%/¡C to Ð5%/¡C @ 25¡C. Max. Operating Temperature: 150¡C+. Max. Temperature: 125¡C.
PTC Thermistors
Positive temperature coefficient thermistors are characterized by an extremely large
resistance change in a small temperature span. Temperature at which resistance begins to
increase rapidly is referred to as the transition temperature (¡C).
Ro @ Max.
Stock Mfr.Õs Tol. Resist.
25¡C Dia.
No. Type (±%) Ratio*
(½) In.
EACH
1-99 100-249
837-1005 RL1003-312-73-D1 500 10 6.9 0.11 2.20 1.58
837-1010 RL1007-624-73-D1 1000 10 6.9 0.11 .87 .78
837-1046 RL1003-1157-95-D1 2000 10 9.2 0.11 2.74 1.96
837-1015 RL1003-1746-97-D1 3000 10 9.1 0.11 2.21 1.58
837-1020 RL1004-2910-97-D1 5000 10 9.1 0.11 2.20 1.89
837-1025 RL1009-5820-97-D1 10 K 10 9.1 0.11 2.73 1.96
837-1047 RL1005-5744-103-D1 10 K 10 9.6 0.11 2.73 1.96
837-1030 RL1007-13.8K-120-D1 25 K 10 11.4 0.11 2.59 1.85
837-1045 RL1003-26.7K-140-D1 50 K 10 12.9 0.11 2.59 1.85
837-1048 RL1006-135.2K-138-D1 250 K 10 12.1 0.11 3.50 2.48
837-2035 RL2012-5506-120-D1 10 K 10 11.4 0.22 1.87 1.40
837-3051 RL3006-59.4-85-D1 100 10 8.4 0.32 2.37 1.71
837-3046 RL3004-144-95-D1 250 10 9.2 0.32 2.16 1.56
837-3078 RL3004-291-97-D1 500 10 9.1 0.32 2.37 1.71
837-3006 RL3005-574-103-D1 1000 10 9.6 0.32 1.79 1.47
*Resistance Ratio Ñ ratio of zero power resistance @ 0¡C to zero power resistance @ 50¡C.
Transition
Oper. Ro @ 25¡C Max.
Stock Mfr.Õs Temp.
Volt ±30% Dia.
No. Type T
TR
V
OP
(½) In.
(¡C)
837-4015 RL5305-1-120-12-PTO 12 1 120 0.60 2.78 1.98
837-3000 RL3006-50-30-25-PTO 25 50 30 0.35 2.75 1.96
837-3005 RL3006-50-40-25-PTO 25 50 40 0.35 2.50 1.79
837-3010 RL3006-50-50-25-PTO 25 50 50 0.35 2.06 1.69
837-3020 RL3006-50-70-25-PTO 25 50 70 0.35 2.06 1.69
837-3030 RL3006-50-90-25-PTO 25 50 90 0.35 2.75 1.96
837-3050 RL3006-50-120-25-PTO 25 50 120 0.35 2.75 1.96
837-6510 RL5510-25-60-120-PTO 120 25 60 0.60 2.63 1.88
837-5021 RL5515-50-65-240-PTO 240 50 65 0.60 3.18 2.30
837-5026 RL6015-100-120-240-PTO 240 100 120 0.65 2.94 2.28
837-2078 RL3020-1500-100-240-PTO 240 1500 100 0.35 2.26 1.60
1-99 100-249
EACH
EACH
1-99 100-249
Visit ThermometricÕs Website at www.thermometrics.com
11
Glass Encapsulated Thermistors
Temp. Coef.
@ 25¡C
(%¡C)
Stock Mfr.Õs
No. Type
Resistance (½)
Ð25¡C 0¡C 25¡C 50¡C 75¡C 100¡C 150¡C 204¡C
EACH
1-99 100-249
837-5185 AL03006-624-73-G1 10.11 K 2888.00 1 K 403.90 185.60 94.40 31.00 12.10 Ð3.83 3.20 2.29
837-5190 AL03006-1248-73-G1 20.22 K 5776.00 2 K 807.80 371.20 188.80 62.00 24.20 Ð3.83 3.90 2.78
837-5192 AL03006-2463-76-G1 40.72 K 11.60 K 4 K 1602.00 724.40 362.70 115.00 43.30 Ð3.85 2.70 1.93
837-5193 AL03006-3079-76-G1 50.90 K 14.50 K 5 K 2002.00 905.50 453.40 143.80 54.10 Ð3.85 2.46 1.76
837-5195 AL03006-5818-97-G1 133.30 K 32.96 K 10 K 3577.00 1469.00 671.20 182.00 59.90 Ð4.41 2.44 1.84
837-5200 AL03006-11.7K-98-G1 253.00 K 64.16 K 20 K 7234.00 2966.00 1356.00 361.20 115.90 Ð4.34 2.46 1.76
837-5202 AL03006-17.53K-98-G1 379.50 K 96.20 K 30 K 10.80 K 4449.00 2034.00 541.80 173.80 Ð4.34 2.70 1.93
837-5205 AL03006-29.1K-97-G1 625.00 K 160.00 K 50 K 18.20 K 7510.00 3431.00 918.50 293.20 Ð4.32 1.80 1.54
837-5210 AL03006-58.2K-97-G1 1.25 M 319.90 K 100 K 36.40 K 15.02 K 6862.00 1837.00 586.40 Ð4.32 3.20 2.28
837-5215 AL03006-111.3K-123-G1 3.32 M 694.60 K 200 K 65.32 K 24.58 K 10.42 K 2492.00 725.20 Ð4.71 2.70 1.93
837-5220 AL03006-269.8K-138-G1 8.91 M 1.92 M 500 K 155.70 K 55.85 K 22.64 K 4943.00 1329.00 Ð4.99 2.70 1.93
837-5225 AL03006-535K-145-G1 18.72 M 3.90 M 1 Meg 305.30 K 106.90 42.47 K 8946.00 2329.00 Ð5.07 2.70 1.93
Note: For KCC type for Style II Delete AL prefix and add G100 suffix. Not stocked at Allied.
ThermometricÕs glass encapsulated NTC thermistors are tiny pellets of thermistor material hermetically sealed in glass bodies. The hermetic seal makes these parts
extremely stable in applications up to 204¡C (400¡F).
c
Temperature Range: Ð50¡C to +204¡C
c
Time Constant: 3 Seconds
c
Dissipation Constant: 2.0 mW/¡C
c
Tolerance: ±10% @ 25¡C
Type MA100
Thermistors
The MA100 Series interchangeable thermistor offers small size, close
tolerances and excellent stability. Originally designed for medical applications,
they are excellent choices for any temperature measurement application where
temperatures will not exceed 50¡C. MA100GG103B: 0.70" OD, kynar wire
insulation. MA100BF103B: 0.30" OD, heavy isomid wire insulation. Tolerance:
35¡C to 39¡C Ñ ±0.1¡C; 0¡C to 50¡C Ñ ±0.2¡C. Quantity price breaks are
available. Contact your local Allied sales representative.
239-0006. MA100GG103B..................................................................EACH 7.28
239-0007. MA100BF103B ..................................................................EACH 7.28
NTC Type C100
Thermistors
Well suited for temperature measurement, control and compensation
applications, low cost makes them ideal for high volume applications such as
energy management systems, small appliance controls, automotive and
industrial equipment controls. These units exhibit faster still air response times
than comparable glass probe devices while maintaining a relatively high
dissipation constant and are manufactured to closer resistance tolerances.
Maximum Power Level: 0.075 watt at 25¡C (derating to zero watt at 100¡C).
Dissipation Constant In Still Air: 1 mW/¡C. Thermal Time Constant In Still Air:
10 sec. Although suitable for applications in the temperature range of Ð80¡C to
+150¡C, best stability is achieved at temperatures not exceeding 105¡C. Quantity
price breaks are available. Contact your local Allied sales representative.
Stock Mfr.Õs Res. Tol. % Curve
No. Type @ 25¡C
EACH
1-99 100-249
239-9100 C100F103G 10 K 2 F 3.58 3.19
239-9102 C100F103J 10 K 5 F 2.57 2.29
Stock Mfr.Õs Res @ 25/50 Package
No. Type 25¡C Beta Size
EACH
1-99 100-249
239-0102 NB1206R103K 10K 3706 1206 3.12 2.53
239-0114 NB0805R502K 5K 3782 0805 3.12 2.53
Surface Mount NTC Thermistors
These ceramic chip thermistors are in EIA case styles 1206 and 0805. The NB
series has nickel plated electrodes with a solder plated covering.The NHQ and
NHQM series have nickel plated palladium silver electrodes with a solder plated
covering. The NB series can be ordered with nickel plated palladium silver
electrodes with a solder plated covering as a special order item. The ceramic
between the electrodes is glass covered. Applications include industrial,
consumer, telecommunications, data processing, temperature measurement,
control and compensation. Temperature Range: Ð40¡C to +125¡C.
Resistance Tolerance: 25¡C is ±10%. Quantity price breaks are available.
Contact your local Allied sales representative.
PTC Type YM120
Thermistors
The YM series is designed to operate at main voltages
and is intended for use in over-current, over-voltage,
and direct over-temperature applications. The leads
are tinned copper and the device is coated with a black
silicone resin. This series offers a wide range of
operating current levels and can operate up to
265 Vrms. Quantity price breaks are available.
Contact your local Allied sales representative.
Stock Mfr.Õs Res. @ I
nt
I
t
I
mo
I
r
No. Type 25¡C* A A A mA
EACH
100-249
239-1002 YM120C20N122 1200 0.020 0.028 0.1 6 2.52 1.72
239-1010 YM120C80N101 100 0.070 0.098 0.4 8 1.51 1.03
239-1012 YM120D105N600 60 0.093 0.131 0.6 8 1.51 1.03
Resistance tolerance at 25¡C is ±20%. Int maximum current without tripping (25¡C ambient). It minimum trip current
(25¡C ambient). Imo maximum overload current. Ir residual current (25¡C ambient).
1-99
