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446: DescriptionEBF Fuse Fast-Acting Type 446/447 Series; File Size69KB，1 Pages; ManufacturerLittelfuse; Websitehttp://www.littelfuse.com

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446 Overview

EBF Fuse Fast-Acting Type 446/447 Series

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Surface Mount Fuses

350 Volt Surface Mount Fuse

EBF Fuse

Fast-Acting Type 446/447 Series

• Ideal for use in electronic lighting ballast, power supply and power

inverter applications.

• Rated for use in 125, 250, 277 and 350 VAC circuits.

• Based on the proven reliability of the automotive MINI

®

Fuse; avail-

able from 2 through 10 amperes.

®

ELECTRICAL CHARACTERISTICS:

Opening

Time

4 hours,

Minimum

0.15 sec. Min., 5 Sec. Max

AGENCY APPROVALS:

Recognized under the Components

Program of Underwriters Laboratories and CSA Certified. Approved by

METI to 5 amperes.

AGENCY FILE NUMBERS:

UL: E71611, CSA LR 29862.

INTERRUPTING RATINGS:

100 amperes at 350 VAC, 50 amperes

at 125 VDC and 450 amperes at 60VDC

% of Ampere

Rating

100%

200%

Reference Dimensions

(Inches):

LF

350V

Recommended

Pad Layout:

4.03

(.159")

5.91

(.233")

8.81

(.347")

447 Mounting

Holes:

1.27

(.050") Dia

10.11

(.398")

PAT

1.44

(.057")

3.81

(.150")

A6

04

ENVIRONMENTAL SPECIFICATIONS:

Operating Temperature:

–40°C to +125°C.

PHYSICAL SPECIFICATIONS:

Materials:

Body: Plastic Body

Terminations: Tin-Lead (95/5) plated Zn, Ni barrier

10.92

(.430")

1.52

(.060")

Soldering Parameters:

Reflow Solder — 235°C, 5 seconds maximum.

No-clean process recommended.

Wave Solder — Not recommended.

Non-plated terminal surfaces may not meet

MIL-STD-202, Method 208.

PACKAGING SPECIFICATIONS:

24mm Tape and Reel per EIA-RS481

(Equivalent to IEC 286, part 3); 800 fuses per reel,

add packaging suffix, ZR.

Shelf Life: Up to 1 year in Factory sealed packaging.

(.295")

7.49

Average Time Current Curves

1000

ORDERING INFORMATION:

Catalog

Number

0446

002.

0446

003.

0446

004.

0446

005.

0446

07.5

0446

010.

Ampere

Rating

(A)

2

3

4

5

7.5

10

Voltage

Rating

(VAC)

350

Nominal

Cold

Resistance(Ω)

0.0560

0.0340

0.0240

0.0180

0.0110

0.0073

Nominal

Melting I

2

t

(A

2

sec)

2.8

9.4

17

25

68

93

100

TIME IN SECONDS

10

EBF Fuse

Fast-Acting Type 447 Series

•

Through-hole version of the 446 series.

®

1

ELECTRICAL CHARACTERISTICS:

Same as 446 Series.

Dimensions:

Contact Littelfuse for specifications.

Soldering Parameters:

Contact Littelfuse for soldering parameters.

Inside terminal face of each lead is non-plated zinc. Non-plated zinc

terminal faces may not meet MIL-STD-202, method 208. To ensure that

the fuse is acceptable for the application, appropriate application testing

should be performed.

0.1

Packaging Specifications:

Bulk Pack (4,000 pieces per pack)

0.01

0.1

1

10

100

CURRENT IN AMPERES

1000

2A

3A

4A

5A

7 1/2A

10A

w w w. l i t t e l f u s e . c o m

602

8.76

(.345")

1.50 (.059") MAX

3.2

5.59 (.126")

(.220")

3.2 (.126")

0.81

(.032")

7

(.032")

0.81

277

446 Related Products

	446	0446002.	0446004.	0446003.	0446010.	0446005.
Description	EBF Fuse Fast-Acting Type 446/447 Series	EBF Fuse Fast-Acting Type 446/447 Series	EBF Fuse Fast-Acting Type 446/447 Series	EBF Fuse Fast-Acting Type 446/447 Series	EBF Fuse Fast-Acting Type 446/447 Series	EBF Fuse Fast-Acting Type 446/447 Series
Maker	-	Littelfuse	Littelfuse	Littelfuse	Littelfuse	Littelfuse
package instruction	-	ROHS COMPLIANT	ROHS COMPLIANT	ROHS COMPLIANT	ROHS COMPLIANT	ROHS COMPLIANT
Reach Compliance Code	-	unknown	unknown	unknown	unknown	unknown
ECCN code	-	EAR99	EAR99	EAR99	EAR99	EAR99
Is Samacsys	-	N	N	N	N	N
Other features	-	RATED BREAKING CAPACITY AT 125 VDC: 50 A	RATED BREAKING CAPACITY AT 125 VDC: 50 A	RATED BREAKING CAPACITY AT 125 VDC: 50 A	RATED BREAKING CAPACITY AT 125 VDC: 50 A	RATED BREAKING CAPACITY AT 125 VDC: 50 A, PRE ARCING TIME: OPEN WITHIN 0.15 SEC AT 275% RATED CURRENT
Fusing characteristics	-	FAST	FAST	FAST	FAST	FAST
body width	-	8.76 mm	8.76 mm	8.76 mm	8.76 mm	8.76 mm
body height	-	3.81 mm	3.81 mm	3.81 mm	3.81 mm	3.81 mm
Body length or diameter	-	10.92 mm	10.92 mm	10.92 mm	10.92 mm	10.92 mm
Circuit protection type	-	ELECTRIC FUSE	ELECTRIC FUSE	ELECTRIC FUSE	ELECTRIC FUSE	ELECTRIC FUSE
JESD-609 code	-	e3	e3	e3	e3	-
Joule integral nominal	-	2 J	17 J	9 J	93 J	25 J
Installation features	-	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT
Maximum operating temperature	-	125 °C	125 °C	125 °C	125 °C	125 °C
Minimum operating temperature	-	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
method of packing	-	TAPE AND REEL	TAPE AND REEL	TAPE AND REEL	TAPE AND REEL	-
physical size	-	10.92mm x 8.76mm x 3.81mm	10.92mm x 8.76mm x 3.81mm	10.92mm x 8.76mm x 3.81mm	10.92mm x 8.76mm x 3.81mm	10.92mm x 8.76mm x 3.81mm
Rated breaking capacity	-	100 A	100 A	100 A	100 A	100 A
Rated current	-	2 A	4 A	3 A	10 A	5 A
Rated voltage (AC)	-	350 V	350 V	350 V	350 V	350 V
Rated voltage (DC)	-	125 V	125 V	125 V	125 V	125 V
Guideline	-	CSA; METI; PSE; UL	CSA; METI; PSE; UL	CSA; METI; PSE; UL	CSA; PSE; UL	CSA; METI; PSE; UL
surface mount	-	YES	YES	YES	YES	YES
Terminal surface	-	TIN	TIN	TIN	TIN	-
Terminal shape	-	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Base Number Matches	-	1	1	1	1	1

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