Littelfuse 157T Series Manuel d'utilisateur télécharger pdf

Speciﬁcations are subject to change without notice.

Revised: 12/19/13

Surface Mount Fuses

NANO

2®

> 157T Fuse and Holder Combination

157T Series – Standard Nano Fuse and Clip Assembly

Description

The 157T Series Fuse/Clip assembly is a small, square,

Time-Lag, surface mount fuse that is assembled in surface

mountable fuse clips. The unique time delay feature of this

fuse design helps solve the problem of nuisance “opening”

by accommodating inrush currents that normally cause a

fast acting fuse to open.

The fuse clip and pre-installed fuse combination can

be automatically placed in PC Board in one efﬁcient

manufacturing operation. It permits quick and easy

replacement of fuses without performing desoldering

process, even in the ﬁeld and without exposing the PC

Board to detrimental effects of rework solder heat.

Agency Approvals

AGENCY AGENCY FILE NUMBER AMPERE RANGE

E14721 0.375A ~ 5A

NBK030205-E10480A

NBK030205-E10480B

1.5A-5A

Features

Electrical Characteristics for Series

• SurfaceMountable,

Time-Lag Fuse.

• Fullycompatiblewith

RoHS/Pb-Free solder

alloys and higher

temperature proﬁles

associated with leadfree

assembly.

• EasilyreplaceableonPC

Board (Field Replaceable)

• RoHSCompliantand

Halogen-free

• Availableinratingsof

0.375 ~ 5 Amperes.

% of Ampere

Rating

% of Ampere

Rating

Opening Time at 25ºC

100% 0.375A ~ 5A 4 hours, Minimum

200% 0.375A ~ 5A

1 sec. Minimum,

60 secs. Maximum

300% 0.375A ~ 5A

0.20 secs. Minimum,

3.00 secs. Maximum

800% 0.375A ~ 5A

0.02 secs. Minimum,

0.10 secs. Maximum

Applications

Ampere

Rating (A)

Amp

Code

Max Voltage

Rating (V)

Interrupting

Rating

(A)

Fuse

Furnished

Nominal Cold

Resistance

(Ohms)

Nominal

Melting

t (A

sec)

Agency Approvals

0.375 .375 125

50A @ 125VAC/VDC

0454.375 1.2214 0.101 X

0.500 .500 125 0454.500 0.7047 0.240 X

0.750 .750 125 0454.750 0.3602 0.904 X

1.00 001 125 0454001. 0.2245 1.98 X X

1.50 01.5 125 045401.5 0.0934 3.65 X X

2.00 002 125 0454002. 0.0629 8.20 X X

2.50 02.5 125 045402.5 0.0452 15.0 X X

3.00 003 125 0454003. 0.0342 20.16 X X

3.50 03.5 125 045403.5 0.0226 26.53 X X

4.00 004 125 0454004. 0.0188 34.40 X X

5.00 005 125 0454005. 0.0138 53.72 X X

Electrical Speciﬁcations by Item

1. Cold resistance measured at less than 10% of rated current at 23ºC.

2. I

t values stated for 8ms opening time.

3. Agency Approval Table Key: X=Approved or Certiﬁed, P=Pending and Blank=Not Approved

4. Have special electrical characteristic needs? Contact Littelfuse to learn more about application speciﬁc options

• Instrumentations

• BaseStations

• Telecommunications

Additional Information

Datasheet

Samples

Resources

1 2 3

Résumé du contenu

Page 1 - Surface Mount Fuses

Page 2 - Temperature Rerating Curve

Page 3 - 0157 005. D R T

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Littelfuse 157T Series Manuel d'utilisateur

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Résumé du contenu

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