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Big Power MF73 50A Power NTC Thermistor Radial Leaded NTC Thermistor Resistor

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Big Power MF73 50A Power NTC Thermistor Radial Leaded NTC Thermistor Resistor

Country/Region	china
City & Province	dongguan guangdong
Categories	Electronics Production Machinery

Product Details

Radial Leaded Ultra Big Power NTC Thermistor MF73 For Switching Power Supply

I Description Of The Ultra Big Power NTC Thermistor MF73

High-Power NTC Thermistors are used to reduce the inrush current that occurs when an electrical device is switched on. High inrush current is the result of the maximum instantaneous input current drawn by an electrical device during the initial power up. As technology continues to advance, most systems today run efficiently and maintain a low impedance which in turn contributes to high inrush current.
Additionally, devices that produce alternating current such as electric motors or transformers can draw several times their steady state current at switch on. Although this additional draw of inrush often lasts less than ½ of a normal 60 hertz cycle, that is enough time to cause possible damage to the equipment.

II Application Of The Ultra Big Power NTC Thermistor MF73

* All kinds of power supply,UPS power supply,Switching power supply

* EV charger,charging pile
* Motor driver,superpower server motor driver,logic controller
* High power plasma electric welder,cutting machine,super power lightning lamp
* Nuclear managetic resonance equipment,super power audio power amplifier,high circle transformer
* The solar panel arrays with high capacity power inverter
* The industrial robot drived by high voltage power supply, intelligent electric cabinet with low voltage.

III Dimension Of The Ultra Big Power NTC Thermistor MF73

Body size	Φ40	Φ45	Φ50
(Dmax)Diameter	45	50	55
(Tmax)/Thickness	18	18	18
(F±1.5)/Pitch	22.5	22.5	22.5
(L±2)/Lead length	20	20	20
(W±0.2)/Lead width	8	8	8
Lead thickness(H±0.1)	1.0	1.0	1.0

Body size	Φ40	Φ45	Φ50
(Dmax)/Diameter	45	50	55
(Tmax)/Thickness	18	18	18
(F±1.5)/Pitch	22.5	22.5	22.5
(L±2)/Lead length	30	30	30
(W±0.2)/Lead width	10	10	10
Lead thickness(H±0.1)	1.0	1.0	1.0
Width of lower lead (W1±0.2)	6	6	6

IV Specification Of The Ultra Big Power NTC Thermistor MF73

Body diameter Φ40mm

P/N	R25±20%(Ω)	Thermal sensitive index B±10%(K)	Max steady state current Imax(A)	Approx R of Max current Rmax(Ω)	Max power dissipation Pmax(W)	Thermal time constant (mW/C)	Thermal time constant (s)	Max impulse capacitance (uF)240VAC
MF73-0.2/50	0.2	2600	50	0.007	25	≥55	≤350	8000
MF73-0.5/40	0.5	2600	40	0.008				6800
MF73-3/28	3	2800	28	0.02				6800
MF73-5/25	5	3000	25	0.028				4700
MF73-8/20	8	3200	20	0.034				3300
MF73-10/19	10	3200	19	0.038				3300

Body diameter Φ45mm

P/N	R25±20%(Ω)	Thermal sensitive index B±10%(K)	Max steady state current Imax(A)	Approx R of Max current Rmax(Ω)	Max power dissipation Pmax(W)	Thermal time constant (mW/C)	Thermal time constant (s)	Max impulse capacitance (uF)240VAC
MF73-0.2/65	0.2	2600	65	0.006	30	≥70	≤480	11500
MF73-0.5/50	0.5	2600	50	0.007				8000
MF73-2/40	2	2600	40	0.012				8000
MF73-5/30	5	3000	30	0.025				6800
MF73-10/24	10	3200	24	0.032				4700

Body diameter Φ50mm

P/N	R25±20%(Ω)	Thermal sensitive index B±10%(K)	Max steady state current Imax(A)	Approx R of Max current Rmax(Ω)	Max power dissipation Pmax(W)	Thermal time constant (mW/C)	Thermal time constant (s)	Max impulse capacitance (uF)240VAC
MF73-0.2/80	0.2	2600	80	0.004	36	≥90	≤650	15000
MF73-0.5/60	0.5	2600	60	0.006				11500
MF73-1/56	1	2600	56	0.008				11500
MF73-3/40	3	2800	40	0.015				11500
MF73-5/35	5	3000	35	0.022				8000
MF73-6.8/32	6.8	3000	32	0.025				8000
MF73-10/27	10	3200	27	0.03				6800

V Characteristics Of The Ultra Big Power NTC Thermistor MF73

◎ Reliable Configuration and convenient installment

◎ Have the strongest capability of surge current protection and energy absorption

◎ Maximum steady state operating current

◎ Longevity of service,high reliability

VI Ampfort Advantage Of The Ultra Big Power NTC Thermistor MF73

* Product R&D and production Base
* Only direct factory marketing windows
* On behalf of buy ,inspection ,delivery , payment
* Low cost shippment advisor
* Provide technical supoort & advices freely for whole course

VII Key Benefits Of The Ultra Big Power NTC Thermistor MF73

* High Power NTC Thermistor Key Benefits:
* Recognized By Underwriters Laboratories For Ensured Safety
* Designed To Withstand High Steady Sate Current
* Absorbs And Minimizes High Input Energy
* Cost Effective One Component Solution To Inrush Current
* Wide Temperature Range Of Operation

VIII About AMPFORT Of The Ultra Big Power NTC Thermistor MF73

Ampfort Electronics, National Hi-Tech Enterprise and drafting member of “National Thirteen Five Plan”,specilized in manufacturing sensitive elements as NTC/PTC thermistor,NTC temperature sensor and metal oxide varistor. With unique process and advanced technology , product produced with high precision,high reliability,high stability etc outstanding advantages, becoming leading level in the industry. Based on current standard power type MF72 NTC thermistors and “The engineer and research technology center of NTC thermistor ceramic material ” ,applied with new materials/technology/process/equipment,as well as unremitting efforts, innovated MF73T,MT73,MF74,MF75 etc. new power type NTC thermistor and mass production to be realized,key technology has been got big breakthrough and performances has been increased a lot.We have our own proprietary intellectual property right and dozens of patents, it can provide inrush protection in industrial level application and it is originate in domestic !