Littelfuse 468 Series Manual de usuario descargar pdf

Speciﬁcations are subject to change without notice.

Revised: 12/19/13

Surface Mount Fuses

Thin Film > 1206 Size > Slo-Blo

> 468 Series

468 Series Fuse

Description

Agency Approvals

AGENCY AGENCY FILE NUMBER AMPERE RANGE

E10480 500MA - 3A

LR29862 500MA - 3A

Electrical Characteristics for Series

Features

• Complieswith

electronic industry

environmental standards

for lead reduction.

• Productiscompatible

with lead-free solders

and higher temperature

proﬁles.

• Timedelayfeature

withstands high inrush

currents and prevents

nuisance openings.

• Packageisvisually

distinct from fast-

acting version for easy

identiﬁcation.

• Topsidemarkingallows

visual veriﬁcation of

amperage rating.

% of Ampere

Rating

Opening Time at 25

100% 4 hours, Minimum

200% 1 sec., Min.; 120 sec., Max.

300% 0.05 sec., Min.; 1.5 sec., Max

800% 0.0015 sec., Min.; .05 sec., Max.

Applications

Ampere

Rating

(A)

Amp

Code

Max

Voltage

Rating

(V)

Interrupting

Rating

Nominal Cold

Resistance

(Ohms)

Nominal

Melting

t (A

sec)

Nom

Voltage

Drop

(mV)

Nom

Power

Dissipation

(W)

Agency

Approvals

0.50 .500 63

50 amperes @63

VAC/VDC

0.27000 0.0310 156.77 0.0784 x x

1. 0 0 001. 63 0.08250 0.1270 94.70 0.0947 x x

1.50 01. 5 63 0.04750 0.2880 82.32 0.1235 x x

2.00 002. 63 35 amperes @63 VAC

50 amperes @63

VDC

0.03240 0.5060 77.27 0.1545 x x

2.50 02.5 63 0.02240 1.0110 73.92 0.1848 x x

3.00 003. 32 50 amperes @32

VAC/VDC

0.01950 1.2700 72.95 0.2189 x x

Electrical Speciﬁcations by Item

1. Measured at 10% of rated current, 25˚C.

2. Measured at rated voltage.

The 468 Series Time-Lag (Slo-Blo

) SMF is a small (1206

size) thin-ﬁlm device designed for secondary protection

of circuits used in space constrained applications such as

hand-held portable electronic devices.

This series is 100% lead-free and meets the requirements

of the RoHS directive. New Halogen-Free 468 Series

fuses are available–to order use the “HF” sufﬁx. See Part

Numbering section for additional information.

• Cellphones

• Batterypacks

• Digitalcameras

• DVDplayers

• Harddiskdrives.

Secondary protection for space constrained applications:

Additional Information

Datasheet

Samples

Resources

1 2 3

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Pagina 3

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