Durable NTC thermistor KNSCHA 206RV187 with operation range from minus 40 to plus 200 degrees Celsius

Price Negotiable

Price: Negotiable

MOQ: Negotiable

Delivery Time: Negotiable

Product Description

Product Overview

NTC Thermistor is a Negative Temperature Coefficient Resistor whose resistance changes with ambient temperature changes. Thermistor comprises 2 or 4 kinds of metal oxides of iron, nickel, cobalt, manganese and copper, being shaped and sintered at high temperature. It is designed for applications requiring precise temperature sensing and control.

Product Attributes

Wrapper Material: Phenolic aldehyde
Down-lead Material: Tinned Electron Wire
Coating Color: Black

Technical Specifications

Item	Specification Request	Test Conditions	Specification Request
Performance Specification
Nominal Resistance (251)	4720%
Max Steady State Current (25)	3A
Thermal Time Constant (approx.)	75S
Thermal Dissipation Constant (approx.)	21mW
Operation Range	-40~+200
Approximate resistance value at maximum current	0.68
Max Shock Capacity	330f/240V
Electrical Properties and Requirements
Zero Power Resistance	See Electrical Parameters	At 25, when the resistance change caused by the internal heat of the resistor body can be ignored relative to the total measurement error.	See Electrical Parameters
B Value	See Electrical Parameters	Calculated using the zero Power resistance value at 25 and 50.	See Electrical Parameters
Thermal Dissipation Constant	See Electrical Parameters	The ratio of the change of the dissipation power to the corresponding change of the temperature at specified temperature. Unit: mw/	See Electrical Parameters
Thermal Time Constant	See Electrical Parameters	Under zero power condition, the time required by a thermistor for its body temperature to reach 63.2% of the difference between its initial and final temperature.	See Electrical Parameters
Leads Terminal Tensile Strength	No break out and damage, Resistance change: within 20%	Apply a 1.0kg load to each lead terminal for 10 seconds.
Leads Terminal Bend Strength	No break out and damage, Resistance change: within 20%	Fix the resistor body and hang 0.5kg on one terminal, bend 90; then straighten, then bend 90 in the opposite direction.
Vibration	No substantial damage	Frequency: 10~50Hz, Amplitude: 1.55mm, Direction and time: X, Y and Z axes each for 2 hours.
Solderability	Covered termination: 98%	Solder bath Temperature: 2355, Time: 3S
Solder Heat Resistance	Resistance change: within 10%	Dip the lead wire into molten solder of 35010 for 3.00.5 seconds, at a depth of 4.00.8mm. After the specimen is left at room ambient temperature for 24 hours, the resistance shall be measured.
Dry Heat (High Temperature Storage)	Resistance change: within 10%	Subject specimen to an ambient of 1252 for 1000+48 hours. After the specimen is left at room ambient for 1 to 2 hours, the resistance shall be measured.
Cold (Low Temperature Storage)	Resistance change: within 10%	Subject specimen to an ambient of -403 for 1000+48 hours. After the specimen is left at room ambient for 1 to 2 hours, the resistance shall be measured.
Humidity Test (Steady State)	Resistance change: within 10%	402, 95% RH, 1000HR
Temperature Cycle Test	Resistance change: within 20%	-40/30 25/5 +125/30 25/5
Operating Temperature	-40~+200	Allowable temperature range while the thermistor works continuously for long time.
Storage Conditions	-10~40, RH75%