Littelfuse 494 Series Manual de usuario descargar pdf (Pagina 3)

Speciﬁcations are subject to change without notice.

Revised: 12/19/13

Surface Mount Fuses

Thin Film > 0603 Size > Fast-Acting > 494 Series

Materials

Body: Advanced High Temperature Substrate

Terminations: 100% Tin over Nickel over Copper

Element Cover Coat: Conformal Coating

Operating

Temperature

– 55°C to 90°C. Consult temperature rerating

curve chart. For operation above 90°C contact

Littelfuse.

Humidity MIL-STD-202F, Method 103B, Condition D

Thermal Shock Withstands 5 cycles of – 55°C to 125°C

Vibration Per MIL-STD-202F

Insulation Resistance

(After Opening)

Greater than 10,000 ohms

Resistance to

Soldering Heat

Withstands 60 seconds above 200°C

and up to 260°C, maximum

Product Characteristics

Dimensions Part Marking System

1.09

(.043")

REFLOW SOLDER

1.60

(.063")

.305

(.012")

.279

(.011")

.18

(.007")

.127

(.005")

MARKING CODE VARIES

WITH AMPERAGE RATING

(SEE CHART)

REF.

1.02

(.040")

.762

(.030")

2.54

(.100")

1.09

(.043")

WAVE SOLDER

3.20

(.126")

1.09

(.043")

1.02

(.040")

.813

(.032")

Coating

Amp

Code

Marking

Code

.250 D

.375 E

.500 F

.750 G

0 01. H

1.25 J

01.5 K

1.75 L

002. N

02.5 O

003. P

03.5 R

004. S

005. T

Part Numbering System

Packaging

Packaging Option Packaging Speciﬁcation Quantity

Quantity &

Packaging Code

8mm Tape and Reel EIA RS-481-2 (IEC 286, part 3) 5000 NR

0494002.NRHF

SERIES

AMP Code

‘HF’ SUFFIX HALIDE

FREE ITEM

PACKAGING Code

Refer to Amp Code column in the

Electrical Speciﬁcations table.

NOTE: The dot is poisitioned before

the Packaging Sufﬁx with whole

ratings and within the numbering

sequence for fractional ratings.

NR = Tape and Reel, 5000 pcs

1 2 3

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Littelfuse 494 Series Manual de usuario Pagina 3

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