Littelfuse 0230.375DRT3SW Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230.375DRT3SW is a 375 mA, 250 V AC glass cartridge fuse with slow-blow response characteristics, designed for through-hole mounting in axial configuration. This part is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and field replacement applications.

Substiute Parts

0230.375DRT3SW

Littelfuse Inc.In Stock: 8400230.375DRT3SW Datasheet

Current PartRFQ

0230.375DRT3SP

LittelfuseIn Stock: 9500230.375DRT3SP Datasheet

DirectRFQ

0230.375DRT1P

Littelfuse Inc.In Stock: 7540230.375DRT1P Datasheet

Parametric EquivalentRFQ

0230.375DRT1SP

Littelfuse Inc.In Stock: 12350230.375DRT1SP Datasheet

Parametric EquivalentRFQ

0230.375DRT2P

Littelfuse Inc.In Stock: 10860230.375DRT2P Datasheet

Parametric EquivalentRFQ

0230.375DRT2SP

Littelfuse Inc.In Stock: 10830230.375DRT2SP Datasheet

Parametric EquivalentRFQ

0230.375DRT3P

Littelfuse Inc.In Stock: 8040230.375DRT3P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0230.375DRT3SW are qualified based on the following critical parameters:

• Current Rating: 375 mA (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Response Time: Slow Blow (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Package / Case: Cartridge, Non-Standard (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Size / Dimension: 0.177" Dia x 0.571" L (4.50mm x 14.50mm) (exact match required)
• Melting I²t: 0.58 (exact match required)
• Operating Temperature: -55°C ~ 125°C (exact match required)

All substitute parts listed maintain these core electrical and mechanical parameters. Substitute parts with active product status and enhanced compliance certifications (ROHS3, REACH Unaffected, CE) provide additional advantages over the obsolete main part.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain electrical and mechanical equivalence to the 0230.375DRT3SW. The primary distinction between the main part and substitutes is product status and compliance posture:

The 0230.375DRT3SW is obsolete and carries RoHS non-compliant status with CSA and UL certifications only. All substitute parts (0230.375DRT3SP, 0230.375DRT1P, 0230.375DRT1SP, 0230.375DRT2P, 0230.375DRT2SP, 0230.375DRT3P) are active products with ROHS3 compliance and expanded certification coverage including CE, CSA, and UL. These substitutes also provide DC voltage rating capability (125 V DC) and enhanced breaking capacity for DC applications (10kA DC), extending functional scope beyond the main part's AC-only specification.

For new designs and production applications, any of the active substitute parts are appropriate selections. For field replacement of existing 0230.375DRT3SW installations, substitute parts provide direct functional compatibility with improved compliance and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can the 0230.375DRT3SW be directly replaced with any of the listed substitute parts?

A: Yes. All substitute parts maintain identical current rating (375 mA), AC voltage rating (250 V), response time (Slow Blow), fuse type (Cartridge, Glass), package configuration (Cartridge, Non-Standard Axial), physical dimensions (0.177" Dia x 0.571" L), melting I²t (0.58), and operating temperature range (-55°C ~ 125°C). Direct substitution is electrically and mechanically valid.

Q: What is the difference between the main part and substitute parts?

A: The 0230.375DRT3SW is obsolete with RoHS non-compliant status. All substitute parts are active products with ROHS3 compliance. Substitute parts include DC voltage rating (125 V) and enhanced DC breaking capacity (10kA DC), which the main part does not specify. Substitute parts carry CE certification in addition to CSA and UL.

Q: Are there packaging differences between the main part and substitutes?

A: Yes. The main part 0230.375DRT3SW does not specify packaging format. All substitute parts are supplied in Tape & Reel (TR) packaging, which is standard for automated assembly processes.

Q: Which substitute part should be selected for new production?

A: All substitute parts are functionally equivalent. Selection may be based on inventory availability, packaging preferences, or supply chain considerations. Parts 0230.375DRT1SP and 0230.375DRT2SP show highest inventory levels (1142 Pcs and 1020 Pcs respectively).

Q: Does the addition of DC voltage rating on substitute parts affect AC circuit compatibility?

A: No. The AC voltage rating (250 V) and all AC electrical characteristics remain identical. DC rating addition does not alter AC performance or compatibility.

Q: Are all substitute parts certified to the same standards?

A: All substitute parts carry CE, CSA, and UL certifications. The main part carries CSA and UL certifications only. All parts meet the same core safety and performance standards for this fuse category.