| Price | TBA |
| MOQ | 100 PCS |
| Delivery Time | 4 Weeks |
| Brand | AMPFORT |
| Place of Origin | Dongguan,China |
| Certification | CQC,UL.TUV |
| Model Number | MF75 |
| Packaging Details | Bulk |
| Payment Terms | T/T, Western Union |
| Supply Ability | 1,000,000 Pieces Per Month |
| Dissipation factor | 55/70/90mW/C | Thermal time constant | 350/480/650sec |
| Place of Origin | Dongguan,China | Insulator | Ceramic |
| Packaging Details | Bulk | Product Name | MF75 Super Power NTC Thermistor |
| Tolerance | 20% | Model Number | MF75 |
| Supply Ability | 1,000,000 Pieces Per Month | Max power dissipation | 30/45/55W |
| Certification | CQC,UL.TUV | Brand Name | AMPFORT |
| Payment Terms | T/T, Western Union | Price | TBA |
| Delivery Time | 4 Weeks | Minimum Order Quantity | 100 PCS |
| Edge | Yes or no | Diameter | 40mm,45mm,50mm |
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 !
A
glance
at
workshop
and
R&D
center
16
years’
experience
R&D
center
and
modern
factories
cover
an
areas
of
120
mu
.
VIIII Package Details Of The Ultra Big Power NTC Thermistor MF73
little box: 18*11.5*8cm
Whole box : 28*19*7cm
Clamshell box: 28.3*19*7.3cm 0.002CBM
Heightening box:28*19.5*11.5cm 0.004CBM
Clamshell box:28.3*19*7.3 0.004CBM
Small box: 30*22*24.5cm 0.004CBM
Big box: 40.5*31*24.5cm 0.031CBM
Braid box: Braid boxcm 0.052CBM
Tags: Spot Welding NTC thermistors | Mini Sensors With Ben| High-power NTC Thermistor| Surge Current Protection| Thermistor Protection | Inrush current limiter| NTC Thermistors| NTC| Negative Temperature Coefficient Thermistor| Negative Temperature Coefficient
