0453005. datasheet(1/1 Pages) LITTELFUSE

Part #	0453005.

Description	NANO2 FUSE Very Fast-Acting 451/453 Series

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Manufacturer	LITTELFUSE [Littelfuse]

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268

Surface Mount Fuses

www .littelfuse .com

Subminiature Surface Mount

NANO

2® FUSE Very Fast-Acting 451/453 Series

The Nano2 SMF Fuse is a very small, square surface mount fuse that is

also available in a surface mount holder.

ELECTRICAL CHARACTERISTICS:

% of Ampere

Ampere

Opening

Rating

Time

100%

1/16 –15

4 hours, Minimum

200%

1/16 –10

5 seconds, Maximum

12–15

20 seconds, Maximum

AGENCY APPROVALS: Recognized under the Components Program

of Underwriters Laboratories and Certified by CSA. Approved by METI

from 1 through 5 amperes.

AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.

INTERRUPTING RATINGS:

1/16 – 8A

50 amperes at 125 VAC/VDC

300 amperes at 32 VDC

10A

35 amperes at 125 VAC/50 amperes at 125 VDC

300 amperes at 32 VDC

12A – 15A 50 amperes at 65 VAC/VDC

300 amperes at 24 VDC

ENVIRONMENTAL SPECIFICATIONS:

Operating Temperature: –55°C to 125°C.

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

(100 G’s peak for 6 milliseconds).

Vibration: MIL-STD-202, Method 201 (10–55 Hz).

Salt Spray: MIL-STD-202, Method 101, Test Condition B.

Insulation Resistance (After Opening): MIL-STD-202, Method

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

Resistance to Soldering Heat: MIL-STD-202,

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

Thermal Shock: MIL-STD-202, Method 107,

Test Condition B (–65 to 125°C).

Moisture Resistance: MIL-STD-202, Method 106, High Humidity

(90-98 RH), Heat (65°C).

100

10

1

0.1

0.01

0.001

0.05 0.1

1

10

100

1000

CURRENT IN AMPERES

Average Time Current Curves

F

7 A

6.86

(.270")

3.15

(.124")

2.95

(.116")

1.96

(.077")

2.69

(.106")

2.69

(.106")

1.45

(.057")

6.10

(.240")

Recommended pad layout

Tin-Lead

Silver

Nominal

Plated

Ampere

Voltage

Resistance

Melting I

2t

Catalog #

Rating

Cold Ohms

A

2 Sec.

–

R451.062

0.062

125

5.50

0.00019

–

R451.080

0.080

125

4.05

0.00033

–

R451.100

0.100

125

3.10

0.00138

–

R451.125

0.125

125

1.70

0.00286

R451.160

0453.160

0.160

125

1.80

0.00306

R451.200

0453.200

0.200

125

1.40

0.00652

R451.250

0453.250

0.250

125

1.05

0.01126

R451.315

0453.315

0.315

125

0.78

0.0231

R451.375

0453.375

0.375

125

0.610

0.0425

R451.400

0453.400

0.400

125

0.560

0.0484

R451.500

0453.500

0.500

125

0.420

0.0795

R451.630

0453.630

0.630

125

0.305

0.143

R451.750

0453.750

0.750

125

0.245

0.185

R451.800

0453.800

0.800

125

0.212

0.271

R451 001.

0453 001.

1.0

125

0.153

0.459

R451 1.25

0453 1.25

1.25

125

0.0780

0.664

R451 01.5

0453 01.5

1.5

125

0.0630

0.853

R451 01.6

0453 01.6

1.6

125

0.0580

1.060

R451 002.

0453 002.

2.0

125

0.0367

0.530

R451 02.5

0453 02.5

2.5

125

0.0286

1.029

R451 003.

0453 003.

3.0

125

0.0227

1.650

R451 3.15

0453 3.15

3.15

125

0.0215

1.920

R451 03.5

0453 03.5

3.5

125

0.0200

2.469

R451 004.

0453 004.

4

125

0.0160

3.152

R451 005.

0453 005.

5

125

0.0125

5.566

R451 06.3

0453 06.3

6.3

125

0.0096

9.17

R451 007.

0453 007.

7

125

0.0090

10.32

R451 008.

0453 008.

8

125

0.0077

20.23

R451 010.

0453 010.

10

125

0.0056

26.46

R451 012.

0453 012.

12

65

0.0049

47.97

R451 015.

0453 015.

15

65

0.0037

97.82

PHYSICAL SPECIFICATIONS:

Materials: Body: Ceramic

Terminations: Tin-Lead Alloy or Silver Plated Caps.

Soldering Parameters:

Wave Solder — 260°C, 10 seconds maximum

Reflow Solder — 260°C, 30 seconds maximum

Solderability: MIL-STD-202, Method 208.

PACKAGING SPECIFICATIONS: 12mm Tape and Reel per EIA-

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

5,000 per reel, add packaging suffix NR.

PATENTED

®

Refer to pg. 271 for SMF Omni-Blok® Holder, Series 154 000.

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