R451.250L Littelfuse, R451.250L Datasheet

R451.250L

Manufacturer Part Number

R451.250L

Description

Cartridge Fuse; Series: 451; Fuse Termina

Manufacturer

Littelfuse

Datasheet

1.R451.250.pdf (1 pages)

Current page: 1 of 1
Download datasheet (67Kb)

Surface Mount Fuses

The Nano

also available in a surface mount holder.

• 451 Series

ELECTRICAL CHARACTERISTICS:

AGENCY APPROVALS:

of Underwriters Laboratories and Certified by CSA. Approved by METI

from 1 through 5 amperes.

AGENCY FILE NUMBERS:

INTERRUPTING RATINGS:

1/16 – 8A

10A

12A – 15A 50 amperes at 65 VAC/VDC

ENVIRONMENTAL SPECIFICATIONS:

Operating Temperature:

Shock:

(100 G’s peak for 6 milliseconds).

Vibration:

Salt Spray:

Insulation Resistance (After Opening):

302, Test Condition A, (10,000 ohms minimum).

Resistance to Soldering Heat:

Method 210, Test Condition B (10 sec. at 260°C).

Thermal Shock:

Test Condition B (–65 to 125°C).

Moisture Resistance:

(90-98 RH), Heat (65°C).

Subminiature Surface Mount

Refer to pg. 374 for SMF Omni-Blok

RoHS

‘L’ (see example on data sheet).

Catalog #

0451.160

0451.200

0451.250

0451.315

0451.375

0451.400

0451.500

0451.630

0451.750

0451.800

0451 001.

0451 1.25

0451 01.5

0451 01.6

0451 002.

0451 02.5

0451 003.

0451 3.15

0451 03.5

0451 004.

0451 005.

0451 06.3

0451 007.

0451 008.

0451 010.

0451 012.

0451 015.

Tin-Lead

Plated

% of Ampere

376

–

Rating

100%

200%

MIL-STD-202, Method 213, Test Condition I

NANO

SMF

50 amperes at 125 VAC/VDC

300 amperes at 32 VDC

35 amperes at 125 VAC/50 amperes at 125 VDC

300 amperes at 32 VDC

300 amperes at 24 VDC

MIL-STD-202, Method 201 (10–55 Hz).

RoHS Compliant

MIL-STD-202, Method 101, Test Condition B.

Catalog #

0451.062

0451.080

0451.100

0451.125

0453.160

0453.200

0453.250

0453.315

0453.375

0453.400

0453.500

0453.630

0453.750

0453.800

0453 001.

0453 1.25

0453 01.5

0453 01.6

0453 002.

0453 02.5

0453 003.

0453 3.15

0453 03.5

0453 004.

0453 005.

0453 06.3

0453 007.

0453 008.

0453 010.

0453 012.

0453 015.

Fuse is a very small, square surface mount fuse that is

Plated

Silver

MIL-STD-202, Method 107,

2®

Ampere

1/16 –15

1/16 –10

Rating

MIL-STD-202, Method 106, High Humidity

12–15

Ampere Voltage

Rating

0.062

0.080

0.100

0.125

0.160

0.200

0.250

0.315

0.375

0.400

0.500

0.630

0.750

0.800

Recognized under the Components Program

1.25

3.15

–55°C to 125°C.

1.0

1.5

1.6

2.0

2.5

3.0

3.5

6.3

FUSE

version now available, use ordering suffix

UL E10480, CSA LR 29862.

MIL-STD-202,

Rating

125

Holder, Series 154 000.

Very Fast-Acting 451/453 Series

4 hours, Minimum

5 seconds, Maximum

20 seconds, Maximum

MIL-STD-202, Method

Resistance

Cold Ohms

Nominal

5.50

4.05

3.10

1.70

1.80

1.40

1.05

0.78

0.610

0.560

0.420

0.305

0.245

0.212

0.153

0.0780

0.0630

0.0580

0.0367

0.0286

0.0227

0.0215

0.0200

0.0160

0.0125

0.0096

0.0090

0.0077

0.0056

0.0049

0.0037

Opening

Time

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

Melting I

Nominal

10.32

20.23

26.46

47.97

97.82

0.00019

0.00033

0.00138

0.00286

0.00306

0.00652

0.01126

0.0231

0.0425

0.0484

0.0795

0.143

0.185

0.271

0.459

0.664

0.853

1.060

0.530

1.029

1.650

1.920

2.469

3.152

5.566

9.17

Sec.

Average Time Current Curves

PHYSICAL SPECIFICATIONS:

Materials:

Soldering Parameters(see page 3 for typical soldering profile):

Solderability:

PACKAGING SPECIFICATIONS:

EIA-RS481-1 (IEC 286, part3); 1,000 pieces per reel, add packaging

suffix, MR; 5,000 per reel, add packaging suffix NR.

Options:

suffix. Example: R451001.MRL (RoHS Compliant 1A, 1,000 per reel).

PATENTED

(.077")

Recommended pad layout

1.96

0.001

0.01

(.270")

(.124")

100

(.116")

0.1

6.86

Wave Solder — 260°C, 10 seconds maximum

Reflow Solder — 260°C, 30 seconds maximum

3.15

2.95

For RoHS Compliant 451 series add the letter ‘L’ to end of packaging

0.05 0.1

Body: Ceramic

Terminations: Tin-Lead Alloy

RoHS Compliant Terminations: Gold over Nickel Plated Caps(451)

MIL-STD-202, Method 208.

(.057")

1.45

CURRENT IN AMPERES

(.240")

7 A

6.10

12mm Tape and Reel per

Silver Plated Caps(453)

100

(.106")

2.69

1000

(.106")

2.69

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