Temperature Dependent Resistance Device KNSCHA 206RV190 NTC Thermistor for Precision Thermal Sensing

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Product Description

Product Overview

The NTC Thermistor is a Negative Temperature Coefficient Resistor designed to decrease its resistance as ambient temperature increases. It is constructed from 2 or 4 types of metal oxides (iron, nickel, cobalt, manganese, or copper) that are shaped and sintered at high temperatures. This thermistor is suitable for applications requiring temperature-dependent resistance, operating within a range of -40 to +200.

Product Attributes

Wrapper Material: Phenolic aldehyde
Lead Wire: Tinned Electron Wire
Coating Color: Black

Technical Specifications

Item	Specification Request	Test Conditions	Specification Request
Nominal Resistance (251)	3320%
Max Steady State Current (25)	0.5A
Thermal Time Constant (approx.)	27S
Thermal Dissipation Constant (approx.)	16mW
Operation Range	-40~+200
Approximate Resistance Value at Maximum Current	1.485
Max Shock Capacity (uf/240V)	47
Zero Power Resistance	See Electrical Parameters	At 25, when the resistance change due to internal heating is negligible compared to the total measurement error.	See Electrical Parameters
B Value	See Electrical Parameters	Calculated using zero power resistance at 25 and 50.	See Electrical Parameters
Thermal Dissipation Constant	See Electrical Parameters	Ratio of power dissipation change to corresponding temperature change at specified temperature (mW/).	See Electrical Parameters
Thermal Time Constant	See Electrical Parameters	Time required to reach 63.2% of the temperature difference between initial and final temperatures under zero power conditions.	See Electrical Parameters
Leads Terminal Tensile Strength	No visible damage, Resistance change: within 20%	1.0kg load applied to each terminal for 10 sec.	No break out and damage, Resistance change: within 20%
Leads Terminal Bend Strength	No visible damage, Resistance change: within 20%	Fixed body, hang 0.5kg on one terminal, bend 90, reverse, bend 90 in opposite direction.	No break out and damage, Resistance change: within 20%
Vibration	No substantial damage	Frequency: 10~50Hz, Amplitude: 1.55mm, Direction and time: X, Y, Z axes each 2 hours.	No substantial damage
Solderability	Covered termination: 98%	Solder bath Temperature: 2355, Time: 3S	Covered termination: 98%
Solder Heat Resistance	Resistance change: within 10%	Dipped in molten solder of 35010 for 3.00.5 seconds up to 4.00.8mm depth, left at room ambient for 24 hours before measurement.	Resistance change: within 10%
Dry Heat (High Temperature Storage)	Resistance change: within 10%	1252 for 1000+48 hours, left at room ambient for 1-2 hours before measurement.	Resistance change: within 10%
Cold (Low Temperature Storage)	Resistance change: within 10%	-403 for 1000+48 hours, left at room ambient for 1-2 hours before measurement.	Resistance change: within 10%
Humidity Test	Resistance change: within 10%	402, 95% RH, 1000 HR	Resistance change: within 10%
Temperature Cycle Test	Resistance change: within 20%	-40/30 25/5 +125/30 25/5	Resistance change: within 20%
Operating Temperature	-40~+200	Long-term continuous operation allowable temperature range.	-40~+200
Storage Conditions	-10~40, RH75%