40MM MF75 NTC Power Thermistor 2600K NTC Inrush Current Limiter

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Dongguan Ampfort Electronics Co., Ltd.

City: dongguan

Province/State:guangdong

Country/Region:china

Tel:86--18128566098

Contact Person:
Mr.James Lai View Contact Details

40MM MF75 NTC Power Thermistor 2600K NTC Inrush Current Limiter

Brand Name	AMPFORT
Model Number	MF75
Certification	CQC,UL.TUV
Place of Origin	Dongguan,China
Minimum Order Quantity	100 PCS
Price	TBA
Payment Terms	T/T, Western Union
Supply Ability	1,000,000 Pieces Per Month
Delivery Time	4 Weeks
Packaging Details	Bulk
Product Name	MF75 Super Power NTC Thermistor
Diameter	40mm,45mm,50mm
Insulator	Ceramic
Edge	Yes or no
Max power dissipation	30/45/55W
Thermal time constant	350/480/650sec
Dissipation factor	55/70/90mW/C
Tolerance	20%

Detailed Product Description

MF75 Super Power NTC Thermistor For Audio Power Amplifier Inrush Current Protection

I Description Of The MF75 Super Power NTC Thermistor

Inrush current is the momentary surge of current created when power is turned on to motors,transformers,power suppliers and heating elements. The more power required by industrial equipment,the larger the inrush current. It can effectively quench the inrush current by means of in series with power NTC thermistor in return circuit of power supply. The thermistor’s resistance decreases dramatically following the inrush,allowing the steady state curent to flow with very little resistance.This effect provides inrush current protection, yet allows efficiency during normal operation.The power NTC Thermistor produced by Dongguan Ampfort Electronics Co.,Ltd. with large scale,especially MF73T,MF73,MF74,MF75 serial products with big size,which can be applied in such inrush protection with industrial level as industrial robots and automation.

II Application Of The MF75 Super Power NTC Thermistor

> Nuclear magnetic resonance equipment
> Super power audio power amplifier
> High power circle transformer
> The solar panel arrays with high capacity power inverter
> The industrial robot drived by high voltage power supply

III Dimension Of The MF75 Super Power NTC Thermistor

Body size	Φ40	Φ45	Φ50
(Dmax)/Diameter	98	92	92
(Tmax)/Thickness	46	46	46
(F±1.5)/Pitch	30	30	30
(L±2)/Lead length	40	40	40
Lead Height(Ho max)	110	110	110
Lead width(W±0.2)	12.0	12.0	12.0
Lead thickness(H±0.1)	1.2	1.2	1.2

Body size	Φ40	Φ45	Φ50
(Dmax)/Diameter	92	92	92
(Tmax)/Thickness	46	46	46
(F±1.5)/Pitch	30	30	30
(L±2)/Lead length	40	40	40
Lead Height(Ho max)	110	110	110
Lead width(W±0.2)	12	12	12
Lead thickness(H±0.1)	1.2	1.2	1.2
Width of lower lead (W1±0.2)	8	8	8

IV Specification Of The MF75 Super Power NTC Thermistor

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)	Dissipation factor(mW/C)	Thermal time constant (s)	Max impulse capacitance (uF)240VAC
MF75-0.2/55	0.2	2600	55	0.007	30	≥55	≤350	8000
MF75-1/45	1	2600	45	0.01				6800
MF75-2/35	2	2600	35	0.014				6800
MF75-5/27	5	3000	27	0.028				4700
MF75-8/22	8	3200	22	0.034				3300
MF75-10/21	10	3200	21	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)	Dissipation factor(mW/C)	Thermal time constant (s)	Max impulse capacitance (uF)240VAC
MF75-0.2/70	0.2	2600	70	0.006	45	≥70	≤480	11500
MF75-0.5/55	0.5	2600	55	0.007				8000
MF75-1/52	1	2600	52	0.009				8000
MF75-2/45	2	2600	45	0.012				8000
MF75-5/35	5	3000	35	0.025				6800
MF75-10/28	10	3200	28	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)	Dissipation factor(mW/C)	Thermal time constant (s)	Max impulse capacitance (uF)240VAC
MF75-0.2/90	0.2	2600	90	0.004	55	≥90	≤650	15000
MF75-1/60	1	2600	60	0.008				11500
MF75-2/50	2	2600	50	0.011				11500
MF75-5/40	5	3000	40	0.022				8000
MF75-8/32	8	3200	32	0.028				6800
MF75-10/30	10	3200	30	0.03				6800

V Characteristics Of The MF75 Super Power NTC Thermistor

• Small size, high power, reliable surge current protection.
• High material constant (B value),
• Low residual resistance
• High steady state current, long lasting, high reliability
• Convenient for PCB installation, wide operating range

VI Ampfort Advantage Of The MF75 Super Power NTC Thermistor

* 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 About AMPFORT Of The MF75 Super Power NTC Thermistor

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 !

A glance at workshop and R&D center
16 years’ experience R&D center and modern factories cover an areas of 120 mu .

Product Tags: 40MM ntc power thermistor MF75 ntc power thermistor 2600K ntc inrush current limiter

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