Power type NTC thermistor Nanjing Shiheng Elec MF72 2.5D13 featuring surge current suppression and certifications

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Product Description

Product Overview

The MF72 Series Power Type NTC Thermistor from Nanjing Shiheng Electronics Technology Co., Ltd. is designed for surge current suppression. This component offers reliable performance with a wide operating temperature range and is manufactured with high-quality materials. It is suitable for applications requiring effective inrush current limiting.

Product Attributes

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

Technical Specifications

Item	Symbol	Test Conditions	Unit	Performance Requirement
1. Electrical Characteristics
Zero-power resistance at 25	R25	Ta=250.5, Test Power 0.1mW, Tested in Air		2.5 20%
B Value	B25/50	B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb)	K	2600 10%
Max Steady Current	I max	-	A	6
Max Allowable Capacitance	CT	240Vac	F	470
Dissipation Factor		-	mW/	13
Thermal Time Constant		-	sec	60
Dielectric Strength	-	500V/AC, 1min	-	No breakdown or flashover
Insulation Resistance	-	500V/DC, 1min	M	500
Operating Temperature Range	-	-		-40 ~ 200
Max Rated Power	Pmax	-	W	4
Resistance-Temperature Curve	-	-	-	See Appendix 1
Volt-Ampere Curve	-	-	-	See Appendix 2
2. Reliability
Lead Strength	-	Pull Force: 10s, Time: 101 sec (for 0.5	-	No visible damage, R/R25%
Solderability	-	Temperature 2455, Time 2-3 sec	-	Tinning area 95%
Resistance to Soldering Heat	-	Solder pot temperature: 2605, Immerse depth 6mm from thermistor body, Time 101 sec	-	R/R25%
Steady State Damp Heat	-	Temperature: 402, Humidity: 93 2%, Time: 1000 hours	-	R/R25%
Temperature Rapid Change	-	-40 30min 25 5min 200 30min 25 5min, repeated 5 times	-	R/R25%
High Temperature Storage	-	Temperature: 2005, Time: 1000 hours	-	R/R25%
Max Steady Current Endurance	-	Thermistor continuously subjected to max steady current at room temperature for 100024h	-	R/R25%
Max Capacitance Endurance	-	Subjected to max allowable capacitance, intermittently closed 50ms, open for 5 times thermal time constant per cycle, subjected to 1000 cycles.	-	R/R25%
5. Outline Dimensions (Unit: mm)
D	-	-	mm	Max 15.5
L1	-	-	mm	Min 17
L2	-	-	mm	7.5 1
F1	-	-	mm	5 2
F2	-	-	mm	4 1.5
T	-	-	mm	Max 6.0
d	-	-	mm	0.8 0.05
6. Product Model Description
MF72	-	MF72: Power Type NTC Thermistor	-	-
2.5	-	2.5: Zero-power resistance at 25 is 2.5	-	-
D13	-	D13: Body diameter is 13mm	-	-

3. Usage Precautions

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