Thin-Film Surface Mount

ELECTRICAL CHARACTERISTICS:

% of Ampere

Opening

Rating

Time @ 25

100%

4 hours, Minimum

200%

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

300%

0.1 sec., Min.; 3 sec., Max.

800%

0.002 sec., Min.; .05 sec., Max.

Program of Underwriters Laboratories and Certified by CSA.

INTERRUPTING RATINGS:

0.5A - 1.5A

50 amperes at 63 VAC/VDC

2A

35 amperes at 63 VAC/VDC

3A

50 amperes at 32 VAC/VDC

ENVIRONMENTAL SPECIFICATIONS:

rerating chart on page 4. For operation above 90°C contact Littelfuse.

10-2000 Hz at 20 G’s per MIL-STD-202F, Method 204D, Condition D.

200°C up to 260°C, maximum.

PHYSICAL SPECIFICATIONS:

Materials:

Body: Epoxy Substrate

Terminations: Copper/Nickel/Tin-Lead (95/5)

Cover Coat: Conformal Coating

Soldering Parameters(see page 3 for soldering profiles):

Reflow Solder: 260°C, 30 seconds maximum

EIA-RS481-1 (IEC 286, part 3); 3,000 per reel, add packaging suffix,

WR.

PATENTED

ORDERING INFORMATION:

Amperage

Voltage

Nom. Cold

Nominal

Catalog

Rating

Marking

Rating

Resistance

Melting I

Number

(A)

Code

(V)

Cold Ohm

1

(A

0430.500

0.5

TF

63

.250

0.0305

0430 001.

1.0

TH

63

.097

0.144

0430 01.5

1.5

TK

63

.056

0.298

0430 002.

2.0

TN

63

.039

0.494

0430 003.

3.0

TP

32

.020

1.33

1

Measured at 10% of rated current, 25°C.

2

Measured at rated voltage.

CURRENT IN AMPERES

0.01

0.1

0.1

1

1

10

100

10

100

0.001

Average Time Current Curves

• Time delay feature withstands high in-rush 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.

3.18 (.125")

2.03 (.080")

REF.

1.52

(.060")

1.52 (.060")

3.81 (.150")

1.14

(.045")

.635 (.025")

2.03

(.080")

1.14 (.045")

REFLOW SOLDER

R .318

(.013")

REF.

Reference Dimensions:

®

®

369

Surface Mount Fuses

www .littelfuse .com

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