R452.375L Littelfuse, R452.375L Datasheet

R452.375L

Manufacturer Part Number

R452.375L

Description

FUSE, SLOW BLOW SMD 375MA; Series: 452; Voltage Rating, DC: 125V; Voltage Rating, AC: 125V; Fuse Current Rating: 375m...

Manufacturer

Littelfuse

Datasheet

1.R452.375.pdf (1 pages)

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Surface Mount Fuses

Subminiature Surface Mount

The NANO

over the NANO

design helps solve the problem of nuisance “opening” by accommodating

inrush currents that normally cause a fast-acting fuse to open.

• 452 Series

ELECTRICAL CHARACTERISTICS:

AGENCY APPROVALS:

Underwriters Laboratories and Certified by CSA.

AGENCY FILE NUMBERS:

INTERRUPTING RATINGS:

50 amperes at 125 VAC/VDC; 300 amperes at 32 VDC

ENVIRONMENTAL SPECIFICATIONS:

Operating Temperature:

Shock:

6 milliseconds).

Vibration:

Salt Spray:

Insulation Resistance (After Opening):

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

Resistance to Soldering Heat:

(3 sec. at 260°C).

Thermal Shock:

Test Condition B (–65 to 125°C).

Moisture Resistance:

High Humidity (90-98 RH), Heat (65°C).

PHYSICAL SPECIFICATIONS:

Materials:

Terminations: Tin-Lead Alloy

RoHS Compliant Terminations: Gold over Nickel Plated Caps(452)

Soldering Parameters:

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: 0452001.MRL (RoHS Compliant 1A, 1,000 per reel).

PATENTED

ORDERING INFORMATION:

RoHS

(see example on data sheet).

0452.375

0452.500

0452.750

0452 001.

0452 01.5

0452 002.

0452 02.5

0452 003.

0452 03.5

0452 004.

0452 005.

% of Ampere

Catalog # Catalog # Rating

Tin-Lead

Plated

Rating

100%

200%

300%

800%

MIL-STD-202, Method 213, Test Condition I (100 G’s peak for

NANO

Wave Solder — 260°C, 3 seconds maximum

Reflow Solder — 260°C, 30 seconds maximum

For RoHS Compliant 452 series add the letter ‘L’ to end of packaging

MIL-STD-202, Method 201 (10–55 Hz, .06 in. total excursion).

Slo-Blo fuse has enhanced inrush withstand characteristics

RoHS Compliant

MIL-STD-202, Method 101, Test Condition B (48 hrs.).

Body: Ceramic

0454.375

0454.500

0454.750

0454 001.

0454 01.5

0454 002.

0454 02.5

0454 003.

0454 03.5

0454 004.

0454 005.

MIL-STD-202, Method 208.

Fast-Acting fuse. The unique time delay feature of this fuse

Plated

Silver

MIL-STD-202, Method 107,

4 hours, Minimum

1 second, Min.; 60 seconds, Max.

0.2 seconds, Min.; 3 seconds, Max.

0.02 seconds, Min.; 0.1 seconds, Max.

2®

MIL-STD-202, Method 106,

Ampere Voltage

–55°C to 125°C.

Recognized under the Components Program of

Slo-Blo

3/8

1/2

3/4

version now available, use ordering suffix ‘L’

UL E10480, CSA LR 29862.

MIL-STD-202, Method 210,

12mm Tape and Reel per

Rating

Fuse 452/454 Series

125

Silver Plated Caps(454)

Opening

Time

MIL-STD-202,

Resistance Melting I

Cold Ohms

Nominal

1.20

0.700

0.360

0.225

0.0930

0.0625

0.0450

0.0340

0.0224

0.0186

0.0136

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

Nominal

15.0

20.16

26.53

34.40

53.72

0.101

0.240

0.904

1.98

3.65

8.20

Sec.

Refer to pg. 271 for SMF Omni-Blok

Average Time Current Curves

1000

0.01

100

0.1

Recommended pad layout

(.077")

1.96

(.270")

(.124")

(.116")

6.86

3.15

2.95

CURRENT IN AMPERES

Holder, Series 154 000T.

(.057")

1.45

(.240")

100

1 A

6.10

(.106")

2.69

377

(.106")

1000

2.69

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