Surface mount fuses, Ab c d – Littelfuse 435 Series User Manual

Page 3

Specifications are subject to change without notice.
Revised: 12/19/13

Surface Mount Fuses

Thin Film > 0402 Size > Very Fast-Acting > 435 Series

Refer to Amp Code column in the

Electrical Specifications table.

The dot is positioned at the end of the

number sequence with whole ratings

and within for fractional ratings.
Example: 1.5 amp product is
043501.5KRHF (2 amp product shown)

Materials

Body: Epoxy / Glass Substrate;
Parts with ‘HF’ suffix: Halogen Free Epoxy / Glass
Terminations: 100% Tin over Nickel over Copper
Device Weight: 0.316mg

Terminal
Strength

MIL-STD-202F, Method 211A, Test Condition A

Insulation
Resistance

After Opening: Greater than 10,000Ohms

Operating
Temperature

–55°C to 90°C.

Consult temperature rerating curve chart.

For operation above 90°C please contact

Littelfuse.

Thermal Shock

Withstands 5 cycles of –55°C to 125°C

Vibration

MIL-STD-202F

Product Characteristics

.558

(.022")

Reflow solder

recommended

mounting pad

dimensions

.991 +/- .051

(.039" +/- .002")

Marking code varies

with amperage.

Refer to Part Marking

System chart.

.508 +/- .051

(.020" +/- .002")

.229 +/- .102

(.009" +/- .004")

0.330 +/- .102

(.013" +/- .004")

.381

(.015")

1.55

(.061")

.584

(.023")

0.292 +/- .102

(.012" +/- .004")

.2159 +/- .0889

(.0085" +/- .0035")

Dimensions

Packaging

Part Numbering System

Part Marking System

packaging Option

packaging Specification

Quantity

Quantity & packaging Code

8mm Tape and Reel

EIA-481 Rev. D (IEC 60286, part 3)

10000

inch min

0.037

0.018

0.008

0.005

inch max

0.041

0.022

0.016

0.012

mm min

0.94

0.457

0.190

0.127

mm max

1.04

0.559

0.394

0.305

0435 002. K R HF S

SERIES

HALOGEN FREE ITEM
“S” - for .250A only

PACKAGING Code

R = Tape and Reel

qUANTITY Code

K = 10,000 Pieces

Amp

Code

Marking

Code

.250
.375
.500
.750
001.
1.25
01.5
1.75
002.
02.5
003.
03.5
004.
005.