Temperature sensor bead type thermistor Nanjing Shiheng Elec MF52A103J3435 A1 precision NTC component

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Product Description

Product Overview

The MF52 series of bead-type thermistor is a precision NTC (Negative Temperature Coefficient) thermistor designed for temperature measurement and control applications. Manufactured by Nanjing Shiheng Electronics Technology Co., Ltd., these thermistors feature a bead construction with a modified resin encapsulation and tinned copper-clad steel leads. They offer a wide operating temperature range from -55 to 125 and are available with various resistance values and tolerances.

Product Attributes

Brand: Shiheng
Origin: Nanjing, China
Product Type: Bead-type Thermistor
Encapsulation Material: Modified Resin
Lead Material: Tinned Copper-Clad Steel
Lead Color: Silver
Encapsulation Color: Black
Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, ROHS, CQC, Jiangsu Province High-tech Product, UL 1434 (File # E240991)

Technical Specifications

Item	Symbol	Test Condition	Unit	Performance Requirement
Zero-power resistance at 25	R25	Ta=250.05, Test Power 0.1mW	K	10K5%
B Value	B25/85	B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb), Tb=850.01	K	34351%
Dissipation Constant		Still air	mW/	2
Time Constant		Still air	sec	7
Insulation Resistance	/	100V/DC, 1min	M	100
Operating Temperature Range	/	/		-55125
Maximum Rated Power	Pmax	/	mW	50
Lead Strength	/	Pull force: 51 N, Time: 101 sec	/	No visible damage, R25 R/R2%
Solderability	/	Temperature 2455, Time 2-3 sec	/	Tinning area 95%
Resistance to Soldering Heat	/	Tin pot temperature: 2605, Immersion depth 6mm from resistor body, Time 51 sec	/	R25 R/R2%
Steady State Damp Heat	/	Temperature: 402, Humidity: 932%, Time: 500 hours	/	R25 R/R2%
Rapid Temperature Change	/	-55 30min 25 5min 125 30min 25 5min, repeated 5 times	/	R25 R/R2%
High Temperature Storage	/	Temperature: 1255, Time: 1000 hours	/	R25 R/R2%
Low Temperature Storage	/	Temperature: -55, Time: 1000 hours	/	R25 R/R2%

Product Model Description: MF52 A 103 J 3435 A1

MF52: Bead-type Precision NTC Thermistor
A: (Implied from context, likely referring to lead type or general series designation)
103: Zero-power resistance at 25 is 10K
J: Resistance Tolerance Code (J = 5%)
3435: B25/85 Value is 3435K
A1: Small bead

Dimensions (Unit: mm)

Serial No.	Name	Material/Specification	Quantity	Remarks
1	Component	NTC Thermistor	1	/
2	Encapsulation	Modified Resin	1	Black
3	Lead Wire	Tinned Copper-Clad Steel Wire	2	Silver

Usage Precautions

Application: Temperature measurement and control.
Avoid current flowing through the thermistor chip causing self-heating and measurement errors.
When soldering with an iron, the soldering point should be at least 2mm away from the coating layer. Soldering temperature should be below 300, and soldering time less than 3 seconds.
Storage Temperature: -10 to 40.
Storage Humidity: 75% RH.
Avoid storage in environments with corrosive gases or direct sunlight.
Reseal packaging after opening.

Contact Information:

Tel: 025-52121868
Fax: 025-52122373
Email: sales@shiheng.com.cn
Address: No. 18 Jinyang Road, Hushu Town, Jiangning District, Nanjing City, Postal Code: 211121
Website: Http://www.shiheng.com.cn