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Radial lead, Resin coated NTC Thermistor for Temperature Measurement Compensation, Diameter 6.5mm

Temperature Compensation NTC Thermistor Description

Since all metals used for coil windings have a positive temperature coefficient of resistance, NTC thermistors are especially useful for compensating resistance changes in devices subjected to temperature variations. Due to the high temperature coefficient of the thermistor as opposed to the low temperature coefficient of the copper, full compensation can be achieved by using a thermistor- resistor network. This network adds less than 15% to the total impedance of the circuit. Compensation of transistor amplifiers, crystal oscillators, etc. can be achieved by using similar methods.

NTC Thermistor for Temperature Measurement/Compensation Features:

AMF11 series in radial lead, resin coated form, diamater after coating 6.5mm.
Wide R25 resistance range from 10 ohm--200k ohm.
Typical resistance @25C 15 ohm, 100 ohm, 200 ohm, 500 ohm, 1k ohm, 2k ohm,3k ohm, 4k ohm, 5k ohm, 10k ohm, 15k ohm, 20k ohm, 30k ohm, 47k ohm, 50k ohm, 100k ohm, 200k ohm, etc.
Resistance tolerance can be 5%, 10%, 20%.
Rated power 0.5W.
Operating temperature: -55C--+125C.

NTC Thermistor for Temperature Measurement Compensation Application Examples:

Temperature compensation in electronic circuit.
Temperature compensation of meter,instrument and other computation equipment.
Temperature compensation of instrumentation winding coil, integrated ciruicts, crystal oscilliator.
Temperature measurement and control which do not have very high accuracy requests.

Temperature Compensation NTC Thermistor Dimensions
Temperature Compensation NTC Thermistor Dimensions Engineering Drawing

NTC Thermistor Decreasing Power Consumption Curve

NTC Thermistor Decreasing Power Consumption Curve

NTC Thermistor for Temperature Measurement/Compensation Application Principle and Circuit Example
NTC Thermistor for Temperature Measurement Compensation Application Principle NTC Thermistors Temperature Compensation Circuit

circuit for a thermostat temperature controller, using NTC Thermistor

A simple circuit configuration for a thermostat, Circuit for a temperature controller

NTC Thermistor Temperature compensation in transistor circuits

NTC Thermistor Temperature compensation in transistor circuits.
Push-pull compensation.

temperature compensation circuit of  LCD Liquid crystal displays using NTC thermistor as temperature sensor

Schematic drawing of a temperature compensation circuit of Liquid crystal displays (LCDs) using NTC thermistor as temperature sensor
For Liquid crystal displays LCD modules often a temperature compensation circuit is used, consisting of NTC thermistors and resistors. The thermistor as main temperature-sensitive device with its characteristic resistance temperature curve provides a high driving voltage in the cold and a low driving voltage in the hot temperature region, compensating in this way the LCD temperature characteristic.

AMWEI NTC Thermistor for Temperature Measurement/Compensation Data Sheet
Part number Resistance @25C
R25
Beta value25/50C Dissipation factor
(mW/C)
Thermal time constant
(S)
Operating temperature
(C)

R25 range
Ohm

tolerance
%
B(25/50C)
K
Tolerance
%
AMF11- 3.3-33 ohm

5

10

20

2700 5

6.0

mW/C

in still air

30s

in still air

-55~+125C
6.8~68 2830
15~150 2950
33~330 3100
68~680 3250
150~1500 3400
330~3300 3570
680~6800 3740
1500~15000 3900
3300~33000 4050
6800~68000 4250
15000~150000 4450
33000~330000 4670
68000~680000 4800
150000~5000000 5050
Note: The first for filling in Resistance @25CR25, the second for filling in resistance tolerance.
NTC Thermistor for Temperature Measurement/Compensation Reliability data

Test
Standard
Test Conditions
R25/R25 (typical)
Remarks
Storage in dry heat IEC 60068-2-2 Storage at upper category temperature, Temperature:125C, Time: 1000h
<3%
No visible damage
Storage in damp heat, steady state IEC 60068-2-3 Temperature of air:40C, Relative humidity of air:93%, Duration: 21 days
<3%
No visible damage
Rapid temperature cycling IEC 60068-2-14 Lower test temperature:-55C, Upper test temperature: 125C, Number of cycles:100
<3%
No visible damage
Endurance \ Pmax:450mW, t:1000h
<3%
No visible damage
Long-term stability \ Temperature: 125C, Time:10000h
<5%
No visible damage

AMWEI Temperature Compensation NTC Thermistors Code


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