Littelfuse Inc. 0452.375MRL

View All Surge Protection Devices (SPDs) by Littelfuse Inc.

Part Number:
0452.375MRL
Manufacturer:
Littelfuse Inc.
Category:
Surge Protection Devices (SPDs)
RoHs:
RoHS Compliant
Datasheet:
0452.375MRL_Datesheet
Description:
375 mA 125 V AC 125 V DC Fuse Board Mount (Cartridge Style Excluded) Surface Mount 2-SMD, Square End Block
In stock 2,982

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Specifications

Type

Paramete

Type

Paramete

Mfr

Littelfuse Inc.

DC Cold Resistance

1.2 Ohms

Fuse Type

Board Mount (Cartridge Style Excluded)

Mounting Type

Surface Mount

Voltage Rating - AC

125 V

Breaking Capacity @ Rated Voltage

50A

Voltage Rating - DC

125 V

Operating Temperature

-55°C ~ 125°C

Melting I²t

0.101

Package / Case

2-SMD, Square End Block

Current Rating (Amps)

375 mA

Response Time

Slow Blow

Approval Agency

CSA, UR

Color

Size / Dimension

0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)

Overview

0452.375MRL – Littelfuse NANO²® Slo-Blo® Surface-Mount Fuse

Complete Datasheet Summary (English)

1. Device Overview

Part Number: 0452.375MRL
Series: 452 NANO²® Slo-Blo®
Function: Time-delay, ceramic-body surface-mount fuse
Current Rating: 0.375 A (375 mA)
Voltage Rating: 125 VAC/VDC
Package / Size: 6.1 mm × 2.7 mm × 2.7 mm (NANO²® chip)
Mounting: Tape-and-reel (12 mm) for automatic SMT placement
Manufacturer: Littelfuse Inc.

2. Absolute Maximum / Electrical Ratings

Parameter	Value	Unit	Notes
Rated current (In)	0.375	A	continuous
Max voltage (Vmax)	125	Vac/dc
Interrupting rating	50 A @ 125 Vac/dc	A	300 A @ 32 Vdc
Nominal cold resistance	0.101	Ω	@ 10 % In, 25 °C
Nominal melting I²t	0.240	A²s	@ 8 ms
Operating temperature	–55 … +125	°C	derating curve applies
Storage temperature	–65 … +150	°C

3. Time-Current Characteristics (25 °C)

% of In	Opening Time	Notes
100 %	≥ 4 h	minimum
200 %	1 s … 60 s
300 %	0.2 s … 3 s
800 %	0.002 s … 0.1 s

4. Agency & Safety Approvals

Agency	File / Mark	Ampere Range
UL 248-1/-14	E10480	0.375 A – 12 A
CSA	29862	0.375 A – 12 A
PSE	NBK030205-E10480B	1 A – 5 A
CCC / CQC	J50515033	0.375 A – 10 A
CE & UKCA	Declared	0.375 A – 12 A
DENAN Appendix-3	Conforms

5. Mechanical & Materials

TableCopy

Characteristic	Specification
Body	Ceramic (alumina)
End caps	Gold-plated (series 452) – RoHS & Halogen-Free
Marking	Brand + “0.375” (laser)
Moisture sensitivity	MSL-1 (J-STD-020)
Solderability	MIL-STD-202, Meth. 208
Insulation resistance (after open)	≥ 10 kΩ (MIL-STD-202, Meth. 302)

6. Environmental / Reliability Tests

Test	Method / Conditions	Result
Thermal shock	–65 °C ↔ +125 °C, 5 cycles	pass
Mechanical shock	100 g, 6 ms, saw-tooth, 18 shocks	pass
Vibration	10-55 Hz, 0.03″, 6 h	pass
Moisture resistance	MIL-STD-202, 10 cycles	pass
Salt spray	48 h, Method 101-B	pass
Resistance to soldering heat	260 °C, 10 s	pass

7. Soldering Parameters (Pb-Free Profile)

TableCopy

Stage	Parameter	Value
Preheat	Ts min … max	150 °C … 200 °C
Ramp rate		≤ 5 °C/s
Liquidus (TL)	217 °C, 60-150 s
Peak temp (TP)	260 °C (+0/–5 °C), 20-40 s
Total time 25 °C → TP	≤ 8 min
Wave solder peak	260 °C, 3 s max

8. Packaging & Ordering

Order Code	Description	Quantity	Reel
0452.375MRL	0.375 A, gold caps, RoHS/HF, 12 mm tape	1 000 pcs	12 mm Ø reel
0452.375MRN	Same, bulk reel	5 000 pcs	12 mm Ø reel Part-number breakdown: 0452 = 452 series .375 = 0.375 A M = 1 k pcs standard R = tape-and-reel L = RoHS & Halogen-Free, gold-plated caps

9. Typical Applications

Notebook PCs, LCD/LED TVs & monitors
PDP panels, backlight inverters, portable DVD players| Networking equipment, servers, storage systems
Wireless base-stations, telecom bricks
White goods, game consoles, office automation
Battery-charging circuits, cooling-fan protection, industrial controls

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