Nanjing Shiheng Elec MF52A502H3470 A1 bead type NTC thermistor with wide operating temperature range

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Product Description

Product Overview

The MF52 series are bead-type temperature measuring NTC thermistors manufactured by Nanjing Shiheng Electronics Technology Co., Ltd. These precise NTC thermistors are designed for temperature measurement and control applications. They feature a compact bead construction with tinned copper-clad steel leads, encapsulated in modified resin. The product offers a wide operating temperature range from -55 to 125 and is available with various resistance values and accuracies.

Product Attributes

Brand: Nanjing Shiheng Electronics Technology Co., Ltd.
Product Type: Bead-type Temperature Measuring NTC Thermistor
Model Series: MF52
Lead Material: Tinned copper-clad steel wire
Encapsulation Material: Modified resin
Color: Black (encapsulation), Silver (leads)
Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, ROHS, CQC, Jiangsu Province High-tech Product, UL 1434 (File # E240991)
Origin: Nanjing, China

Technical Specifications

Item	Symbol	Test Condition	Unit	Performance Requirement
Zero-power resistance at 25	R25	Ta=250.05, Test power 0.1mW	K	5K3%
B Value	B25/50	B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb), Tb=500.01	K	34701%
Dissipation Factor		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	/	Fixed resistor end, Tension: 51 N, Time: 101 sec	/	No visible damage, R25 R/R2%
Solderability	/	Temperature 2455, Time 2-3 sec	/	Soldered area 95%
Resistance to Soldering Heat	/	Solder 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, Repeat 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 Explanation: MF52 A 502 H 3470 A1

MF52: Bead-type precision NTC thermistor
A: Lead wire is tinned copper-clad steel wire
502: Zero-power resistance at 25 is 5K
H: Resistance tolerance code (F-1%, G-2%, H-3%, J-5%)
3470: B25/50 value is 3470K
A1: Small head

Usage Precautions:

Purpose: 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: -1040.
Storage Humidity: 75% RH.
Avoid storage in environments with corrosive gases and direct sunlight.
Reseal for storage after opening the package.

Contact Information:

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