Mfr Part #:

0154.500DRT

Available from 4 distributors

Mfr Name: Littelfuse Inc.

Board mount fuse rated 500mA at 125VAC/VDC with slow blow response. Features 50A breaking capacity and UL approval.

✓ Total Stock: 2,349 pcs

0154.500DRT Available from 4 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Tokyo Device ✓ Non-Authorised Inventory information	1,038 pcs On Request	1038 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Hybrid Electronics ✓ Non-Authorised Inventory information	921 pcs On Request	921 pcs	On Request	1	On Request	On Request	1022	On Request	On Request
NTD Electronics ✓ Non-Authorised Inventory information	380 pcs On Request	380 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Speed Components Ltd ✓ Non-Authorised Inventory information	10 pcs On Request	10 pcs	On Request	1	On Request	On Request	15+	On Request	On Request

0154.500DRT Description

Short technical summary and product information.

The Littelfuse 0154.500DRT is a 500mA, 125VAC/VDC slow blow board mount fuse from the 154 Series OMNI-BLOK fuse and holder assembly. It is designed for surface mount installation using a holder, enabling easy fuse replacement without exposing the PC board to solder heat. The fuse offers a breaking capacity of 50A at rated voltage and a melting I²t of 0.24 A²s.

This fuse operates over a temperature range of -55°C to 125°C and is packaged in a 2-SMD square end block with holder. It is RoHS compliant and halogen-free, with UL recognition under file E14721. The slow blow response makes it suitable for circuits with high inrush currents.

The 0154.500DRT is supplied in tape and reel packaging for automated assembly. Its compact dimensions (9.73mm x 5.03mm x 3.81mm) allow for dense board layouts. The holder is heat-resistant with UL94 V-0 rating and supports 260°C reflow soldering.

0154.500DRT Quick Information

Product Type: Board Mount Fuse

Series: OMNI-BLOK

Canonical Name: Littelfuse 0154.500DRT OMNI-BLOK Fuse and Holder Assembly, 500mA, 125VAC/VDC, Slow Blow

Subcategory: Board Mount Fuse

0154.500DRT Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

0154.500DRT Features

Rated for 500mA at 125VAC/VDC.
Slow blow response for time-delay applications.
50A interrupting capacity at rated voltage.
Surface mount with holder for easy replacement.
RoHS compliant and halogen-free.

0154.500DRT Applications

Used in power supply input protection.
Ideal for circuits with high inrush currents.
Suitable for board-level overcurrent protection.
Applicable in industrial control equipment.

0154.500DRT FAQs

7 frequently asked questions generated from this part’s specifications.

What is the current rating of the 0154.500DRT fuse?

The current rating is 500 mA (0.5 A).

What is the voltage rating of this fuse?

The voltage rating is 125 V (AC/DC).

What is the breaking capacity of the 0154.500DRT?

The breaking capacity is 50 A at rated voltage.

What is the response time of this fuse?

The response time is slow blow (time-lag).

What package type does the 0154.500DRT use?

The package is 2-SMD, square end block with holder.

What is the operating temperature range?

The operating temperature range is -55°C to 125°C.

Is the 0154.500DRT fuse RoHS compliant?

Yes, it is RoHS3 compliant and halogen-free as per the datasheet.

Category	Fuses
Manufacturer Name	Littelfuse Inc.
Approval Agency	UL
Breaking Capacity @ Rated Voltage	50A
Current Rating	500 mA
Current Rating (Amps)	500 mA
Fuse Type	Board Mount (Cartridge Style Excluded)
Halogen Free	Halogen-free
Height	3.81mm (0.150")
Industrial Grade	Yes
Length	9.73mm (0.383")
Melting I²t	0.24
Mounting Type	Requires Holder, Surface Mount
Operating Temperature	-55°C ~ 125°C
Package / Case	2-SMD, Square End Block with Holder
Response Time	Slow Blow
SVHC Present	Not Present
Tape & Reel	Yes
Voltage Rating	125 V
Width	5.03mm (0.198")