KTY81 2KOhm Series Silicon Thermistor PTC LPTC81-210 220 221 222 250 251 252

KTY81 2KOhm Series Silicon Thermistor PTC LPTC81-210 220 221 222 250 251 252

Product Details:

Place of Origin: Dongguan,Guangdong,China
Brand Name: AMPFORT
Certification: ROHS
Model Number: KTY81 2KOhm

Payment & Shipping Terms:

Minimum Order Quantity: 1000PCS
Price: 0.75 US$/PC
Packaging Details: Bulk or T/A
Delivery Time: 2 Weeks
Payment Terms: T/T, Western Union
Supply Ability: 10KKPCS Per month
Get Best Price Contact Now

Detail Information

Name: Thermistor PTC R25: 2000 Ohm
Operating Temperature: -55℃~+150℃ Cross: Philips/NXP KTY81-2KΩ Series KTY10-5 KTY10-6 KTY10-62 KTY10-7 Series
Resistance Tolerance: 1% 2% 5% Encapsulation: Glass DO-35
High Light:

KTY81 Silicon Thermistor PTC


2KOhm Silicon Thermistor PTC


10mW Silicon PTC Thermistor

Product Description


KTY81 2KOhm Series Silicon Thermistor PTC LPTC81-210 220 221 222 250 251 252


Description Of The Silicon Thermistor PTC

- Linear PTC thermistor (LPTC) resistance increases linearly with temperature,
- It shows almost linear positive temperature coefficient in the whole temperature range, suitable for measurement and control system, temperature compensation.
- Since the structural material is mainly semiconductor single crystal silicon, it is also called silicon temperature sensor, silicon thermistor, and sometimes silicon resistor.
- Because of the positive temperature coefficient, silicon temperature sensors exhibit fail-safe operation when overheated.
- In addition, silicon itself is stable, so silicon temperature sensors are very reliable and have a long service life.
- Hermetically sealed glass package, axial lead, 2 leads, can operate in high temperature and humidity environment.
- Linear PTC thermistor, small size, good sealing, easy to install automatically.
- AMPFORT Linear PTC Thermistor (LPTC)



Application Of The Silicon Thermistor PTC


- Industrial automation control equipment, home appliance temperature detection and compensation, precision circuits and crystal oscillator temperature compensation.
- Temperature compensation for silicon semiconductor devices, temperature compensation instrumentation amplifiers, A/D converter temperature compensation.
- Micro-motor timing control, automotive temperature detection and control, medical equipment temperature detection and control.
- Linear PTC Thermistor Applications
- Also includes transmission, engine oil and coolant, heating system, overheating protection, amplifiers, power supplies, sensors, telemetry,
- Computer, magnetic amplifier, temperature measurement, weather, temperature regulation and over temperature protection.



Features Of The Silicon Thermistor PTC


1. The resistance of linear PTC thermistor (LPTC) increases linearly with the increase of temperature, showing almost
Linear positive temperature coefficient range, suitable for measurement and control system, temperature compensation.
Temperature coefficient: α25/50>=0.7%/C.
2. Excellent long-term stability and the largest annual diversification rate. 0.01℃ per year, the service life of temperature silicon temperature sensor Drift during the period is negligible.
3. Thermal time constant Up to 10 seconds in still air.
4. Working temperature range -55~+150℃.
5. Dissipation coefficient 2.5~5mW/℃.
6. The maximum working current Iopr =1.0mA.
7. Rated power 10mW.
8. Philips/NXP silicon temperature sensor elements KTY84 and KTY81 are replaced and matched.

KTY81 2KOhm Series Silicon Thermistor PTC LPTC81-210 220 221 222 250 251 252 0

• Temperature dependent resistor with positive temperature coefficient
• Temperature range – 50 °C to + 150 °C (– 60 F to 300 F)
• Available in SMD or leaded or customized packages
• Linear output
• Excellent longterm stability
• Polarity independent due to symmetrical construction
• Fast response time
• Resistance tolerances (R25) of ± 3% or ± 1%



Silicone PTC Thermistor Cross Reference Of The Silicon Thermistor PTC


Part Number





Nominal Resistance(Ω) Operating Temperature Corresponding to market generic models
LPTC83-110 R25=1000 ±1% R25=990-1010 -55℃~175℃ KTY83-1KΩseries
LPTC83-120 R25=1000 ±2% R25=980-1020
LPTC83-121 R25=1000 -2% R25=980-1000
LPTC83-122 R25=1000 +2% R25=1000-1020
LPTC83-150 R25=1000 ±5% R25=950-1050
LPTC83-151 R25=1000 -5% R25=950-1050
LPTC83-152 R25=1000 +5% R25=1000-1050
LPTC81-110 R25=1000 ±1% R25=990-1010



KTY81-1KΩ series
LPTC81-120 R25=1000 ±2% R25=980-1020
LPTC81-121 R25=1000 -2% R25=980-1000
LPTC81-122 R25=1000 +2% R25=1000-1020
LPTC81-150 R25=1000 ±5% R25=950-1050
LPTC81-151 R25=1000 -5% R25=950-1050
LPTC81-152 R25=1000 +5% R25=1000-1050
LPTC81-210 R25=2000 ±1% R25=1980-2020 -55℃~+150℃

KTY81-2KΩ series



LPTC81-220 R25=2000 ±2% R25=1960-2040
LPTC81-221 R25=2000 -2% R25=1960-2000
LPTC81-222 R25=2000 +2 R25=2000-2040
LPTC81-250 R25=2000 ±5% R25=1900-2100
LPTC81-251 R25=2000 -5% R25=1900-2000
LPTC81-252 R25=2000 +5% R25=2000-2100
LPTC84-130 R100=1000 ±3% R25=575-595 -40℃~+180℃ KTY84 series
LPTC84-150 R100=1000 ±5% R25=565-613
LPTC84-151 R100=1000 -5% R25=565-575
LPTC84-152 R100=1000 +5% R25=595-613
LPTC-200 R25=200 ±3%;+5%,-5%   -40℃~+150℃  
LPTC-500 R25=500 ±3%;+5%,-5%  
LPTC-1200 R25=1200 ±3%;+5%,-5%   -50℃~+125℃
LPTC-1600 R25=1600 ±3% R25=16000±50Ω
LPTC-3800 R25=3800 ±3%  
LPTC-4050 R25=4050 ±3% R25=3920-4172

Note 1:The above items are all used DO35 glass encapsulation. 

KTY81 2KOhm Series Silicon Thermistor PTC LPTC81-210 220 221 222 250 251 252 1

Want to Know more details about this product
I am interested in KTY81 2KOhm Series Silicon Thermistor PTC LPTC81-210 220 221 222 250 251 252 could you send me more details such as type, size, quantity, material, etc.
Waiting for your reply.