Power type NTC thermistor Nanjing Shiheng Elec MF72 5D11 designed for stable inrush current control

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Product Description

Product Overview

The MF72 Power Type NTC Thermistor from Nanjing Shiheng Electronics Technology Co., Ltd. is designed to suppress inrush current. This series offers reliable performance with a wide operating temperature range and is certified under various international standards including ISO9001, ISO14001, RoHS, CQC, UL, and TUV. It is suitable for applications requiring inrush current limiting.

Product Attributes

Brand: Shiheng ()
Product Series: MF72 Power Type NTC Thermistor
Origin: Nanjing, China
Encapsulation Material: Black Silicone Resin
Lead Material: Tinned Copper Wire
Certifications: ISO9001:2008, ISO/TS16949:2009, ISO14001:2004, RoHS, CQC, UL (E241319), Jiangsu Province High-tech Product, TUV (R50245892)

Technical Specifications

Item	Symbol	Test Condition	Unit	Performance Requirement
Zero-power Resistance at 25	R25	Ta=250.5, Test Power 0.1mW, Tested in Air		5 20%
B Value	B25/50	B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb)	K	2800 10%
Maximum Steady Current	I max		A	4
Maximum Allowable Capacitance	CT	240Vac	F	150
Dissipation Factor			mW/	13
Thermal Time Constant			sec	45
Withstand Voltage		500V/AC, 1min		No breakdown or arcing
Insulation Resistance		500V/DC, 1min	M	500
Operating Temperature Range				-40 ~ 170
Maximum Rated Power	Pmax		W	3
Lead Strength (Tensile)		Tension: 10s 1s (0.5	N	R/R25%
Solderability		Temperature 2455, Time 2-3s		95% tinning area
Resistance to Soldering Heat		Solder pot temp: 2605, immersion depth 6mm from body, time 101s		R/R25%
Steady State Damp Heat		Temp: 402, Humidity: 932%, Time: 1000 hours		R/R25%
Temperature Rapid Change		-40 30min 25 5min 170 30min 25 5min, 5 cycles		R/R25%
High Temperature Storage		Temp: 1705, Time: 1000 hours		R/R25%
Maximum Steady Current Endurance		Continuous application of maximum steady current at room temperature, 100024h		R/R25%
Maximum Capacitance Endurance		Apply maximum allowable capacitance, intermittent close 50ms, open 5 times thermal time constant per cycle, 1000 cycles		R/R25%
Model: MF72-5D11	D	Body Diameter	mm	11 (Max)
	L1	Lead Length	mm	Min 17
	L2	Lead Length	mm	8 2
	F1	Lead Pitch	mm	7.5 1
	F2	Lead Pitch	mm	5 1.5
	T	Body Thickness	mm	Max 13.0
	d	Lead Diameter	mm	0.8 0.05

Usage Precautions

Purpose: Inrush current suppression.
Soldering: When using a soldering iron, the soldering point should be at least 2mm from the coating layer. Soldering temperature should be below 360, and soldering time less than 3 seconds.
Storage Temperature: -10 to 40.
Storage Humidity: 75% RH.
Storage Environment: Avoid storage in environments with corrosive gases or direct sunlight.
Packaging: Reseal packaging after opening.
Shelf Life: 1 year.