Surge Current Suppression Device Nanjing Shiheng Elec MF72 10D9 Power Type NTC Thermistor for Electronics

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Product Description

Product Overview

The MF72 Power Type NTC Thermistor is designed for surge current suppression. Manufactured by Nanjing Shiheng Electronics Technology Co., Ltd., this component offers reliable performance with a focus on protecting electronic circuits from inrush current.

Product Attributes

Brand: Shiheng
Product Type: Power Type NTC Thermistor
Model Series: MF72
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 High-tech Product, TUV (R50245892)

Technical Specifications

Item	Symbol	Test Condition	Unit	Performance Requirement
1. Electrical Characteristics
Zero-power Resistance at 25	R25	Ta=250.5, Test Power 0.1mW, Tested in Air		10 20%
B Value	B25/50	B=[(TaTb)/(Tb-Ta)]ln(Ra/Rb)	K	2800 10%
Max Steady Current	I max		A	2
Max Allowable Capacitance	CT	240Vac	F	100
Dissipation Factor			mW/	11
Thermal Time Constant			sec	32
Withstand Voltage		500V/AC, 1min		No breakdown or flashover
Insulation Resistance		500V/DC, 1min	M	500
Operating Temperature Range				-40 ~ 170
Max Rated Power	Pmax		W	2
Resistance-Temperature Curve				See Figure 1
Volt-Ampere Curve				See Figure 2
2. Reliability
Lead Strength		Tension: 101 sec, for wire diameter 0.5		No visible damage, R/R25%
Solderability		Temperature 2455, Time 2-3 sec		95% tinning area
Resistance to Soldering Heat		Tin pot temperature: 2605, immersion depth 6mm from body, Time 101 sec		R/R25%
Steady Damp Heat		Temperature: 402, Humidity: 932%, Time: 1000 hours		R/R25%
Rapid Change of Temperature		-40 30min25 5min170 30min25 5min, repeated 5 times		R/R25%
High Temperature Storage		Temperature: 1705, Time: 1000 hours		R/R25%
Max Steady Current Endurance		Continuously apply max steady current at room temperature for 100024h		R/R25%
Max Capacitance Endurance		Apply max allowable capacitance, 50ms on, 5 times thermal time constant off per cycle, 1000 cycles		R/R25%
3. Usage Precautions
Product Usage	Surge current suppression
Soldering (Iron)	Distance from coating layer 2mm, Temperature
Storage Temperature	-1040
Storage Humidity	75% RH
Storage Environment	Avoid corrosive gases and direct sunlight
Packaging	Reseal after opening
Shelf Life	1 year
5. Outline Dimensions (Unit: mm)
Model	D	L1	L2	F1	F2	T	d
MF72-10D9	Max 11.0	Min 17	82	7.51	51.5	Max 5.5	0.80.05
6. Product Model Description
MF72-10D9	MF72: Power Type NTC Thermistor; 10: Zero-power resistance at 25 is 10; D9: Body diameter is 9mm