MS22 75004 Ametherm, MS22 75004 Datasheet

MS22 75004

Manufacturer Part Number

MS22 75004

Description

CURRENT LIMITER INRUSH 75 OHM 4A

Manufacturer

Ametherm

Datasheets

1.MS22_75004.pdf (1 pages)

2.MS22_75004.pdf (2 pages)

Specifications of MS22 75004

R @ 25°c

75 Ohm

R @ Current

0.41 Ohm

Current - Steady State Max

Tolerance

±25%

Diameter

0.787" (20mm)

Lead Spacing

0.3" (7.80mm)

Thermistor Type

NTC

Resistance

75ohm

Thermistor Tolerance

Â± 25%

Thermistor Case Style

Radial Leaded

No. Of Pins

Leaded Process Compatible

Yes

Mounting Type

Through Hole

Operating Current

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Other names

570-1011
MS2275004

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Circuit Protection Thermistors

Inrush Current Limiter

for your application.

Specify the right

Inrush Current

Limiter work?

How does the

MegaSurge

Ametherm’s MegaSurge™ Inrush Current Limiter is an economical and space saving way to limit

high inrush current. MegaSurge’s rugged high temperature construction allows safe operation at

high continuous currents. It is specially designed to withstand up to 50 amperes of continuous

current and 900 joules of input energy.

The MegaSurge Inrush Current Limiter is useful in:

The MegaSurge Inrush Current Limiter absorbs high amounts of inrush current when electrical

equipment is turned on by offering a high resistance to current and quickly decreasing in

resistance once steady state current begins to flow through the thermistor. In a switching power

supply, the instantaneous surge energy is caused by the large input filter capacitors and

AC input voltage.

During the absorption of energy, the initial high resistance of the thermistor drops within

milliseconds to a negligible resistance in preparation of allowing high levels of steady state

current to flow with a minimal loss of power through the circuit. The MegaSurge Inrush Current

Limiter will absorb up to 900 joules of input energy and carry 50 amperes of steady state current.

Ametherm’s new Inrush Current Limiter

provides big protection.

Use the maximum allowable inrush

current and Ohm’s Law to determine

the least allowable resistance at

turn on for your application.

Using the formula J=

determine how much input energy

the thermistor will absorb when the

device is turned on.

Determine the maximum steady state

current that will flow through

the Inrush Current Limiter.

Select the Ametherm Inrush

Current Limiter that will work for

your application.

AC Motors

Power Supplies

Motor Drives

Audio Amplifiers

Battery Chargers

Frequency Generators

Plasma Cutting Tools

MRI Machines

Toroidal Transformers up to 4.0KVA

Other equipment that can be improved with

inrush current protection

One example of a typical circuit for limiting

inrush current.

Another example of a typical circuit for limiting

inrush current.

3111 N. Deer Run Road, Suite 4

Carson City, NV USA 89701

800-808-2434 / 775-884-2434

Fax 775-884-0670 / www.ametherm.com

Related parts for MS22 75004

MS22 75004 Summary of contents

Page 1

... Ametherm’s MegaSurge™ Inrush Current Limiter is an economical and space saving way to limit high inrush current. MegaSurge’s rugged high temperature construction allows safe operation at high continuous currents specially designed to withstand amperes of continuous current and 900 joules of input energy. The MegaSurge Inrush Current Limiter is useful in: ...

Page 2

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