FBMOV250M Littelfuse Inc, FBMOV250M Datasheet

FBMOV250M

Manufacturer Part Number

FBMOV250M

Description

Varistors Fuse Body MOV

Manufacturer

Littelfuse Inc

Datasheet

1.FBMOV550M.pdf (3 pages)

Specifications of FBMOV250M

Voltage Rating Dc

320 V

Voltage Rating Ac

250 V

Clamping Voltage

640 V

Peak Surge Current

40000 A

Surge Energy Rating

660 J

Capacitance

2800 pF

Operating Temperature Range

- 55 C to + 85 C

Mounting

Axial

Dimensions

40.2 mm Dia. x 85.1 mm L

Suppressor Type

Varistor

Peak Surge Current @ 8/20Âµs

40kA

Varistor Case

40mm DISC

Clamping Voltage Vc Max

640V

Peak Energy (10/1000us)

660J

Voltage Rating Vdc

320V

Voltage Rating Vac

250V

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 3
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Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/ba or /bb.html for current information.

RoHS

Continuous:

Steady State Applied Voltage:

Transient:

Operating Ambient Temperature Range (T

Storage Temperature Range (T

Temperature Coefﬁcient (a

Hi-Pot Encapsulation (Isolation Voltage Capability)

COATING Insulation Resistance

Agency Approvals

Features

Absolute Maximum Ratings

Agency

RoHS compliant and

Lead–free available

Patent on Integrated

Thermal Protection +

Non Fragmenting Device.

Designed to facilitate

compliance to UL1449

for SPD product:

UL 1449 Short circuit

current rating test

section 39.2.

UL1449 Intermediate

current test section 39.3.

DC Voltage Range (V

AC Voltage Range (V

Non-Repetitive Surge Current, 8/20μs Waveform (I

Non-Repetitive Energy Capability, 2ms Waveform (W

FBMOV Varistor Series

) of Clamping Voltage (V

M(AC)RMS

M(DC)

STG

Agency File Number

)

E320116

)

UL 1449 Limited current

abnormal over voltage

test Section 39.4.

Will open circuit

without rupture under

100A, 500A, 1,000A,

25,000A and 200,000A

test conditions.

Peak Current

Rating to 40 kA.

-55°C to +85°C

operating temperature.

)

Varistor Products

Industrial High Energy Terminal Varistors > FBMOV Series

) at Speciﬁed Test Current

Revision: November 18, 2010

)

The Littelfuse FBMOV Series thermally protected and

non-fragmenting varistor represents a new development

in circuit protection. It consists of a 40kA varistor building

block (MOV) with an integral thermally activated element

designed to open in the event of overheating due to

abnormal over-voltage, limited current conditions.

FBMOV series devices also include a varistor series fuse

which prevents the part from rupturing when subjected to

high fault current (up to 200kA).The tubular fuse-like body

allows for easy mechanical connection in the application.

Another feature of FBMOV is an indicator lead, which may

be connected to monitoring circuitry and used to signal if

the MOV has been disconnected.

FBMOV series devices offer quick thermal response due

to the close proximity of the integrated fusing thermal

element to the MOV body. The integrated conﬁguration

also offers lower inductance than most discreet solutions

resulting in improved clamping performance to fast over-

voltage transients.

Description

Applications

Type 1 SPD (Surge Protection Device) Products

Power supplies

Transformer

Residential Service Panel

Power distribution

Telecommunication

IT/Data Center

FBMOV Series

340 to 1340

-55 to +125

150 to 970

115 to 750

-55 to +85

40,000

>1000

<0.01

2500

Units

MΩ

FBMOV Varistor Series

Related parts for FBMOV250M

FBMOV250M Summary of contents

Page 1

... Industrial High Energy Terminal Varistors > FBMOV Series Description The Littelfuse FBMOV Series thermally protected and non-fragmenting varistor represents a new development in circuit protection. It consists of a 40kA varistor building block (MOV) with an integral thermally activated element designed to open in the event of overheating due to abnormal over-voltage, limited current conditions. ...

Page 2

... M(DC) (V) (V) FBMOV115M 115 150 FBMOV130M 130 170 FBMOV140M 140 180 FBMOV150M 150 200 FBMOV175M 175 225 FBMOV230M 230 300 FBMOV250M 250 320 FBMOV275M 275 350 FBMOV300M 300 385 FBMOV320M 320 420 FBMOV385M 385 505 FBMOV420M 420 560 FBMOV440M 440 585 ...

Page 3

V-I Characteristic Curves 10000 440 420 385 1000 175 230 150 140 130 115 100 0.00001 0.0001 0.001 0.01 0 Peak Current (A) Dimensions Typical Dimensions in Milimeters [Inches] Notes: Typical weight: BA Series:250g and BB Series: 600g ...

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