Littelfuse 0230.500DRT3SW Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230.500DRT3SW is a 500 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

0230.500DRT3SW

Littelfuse Inc.In Stock: 7160230.500DRT3SW Datasheet

Current PartRFQ

0230.500DRT3SP

Littelfuse Inc.In Stock: 7790230.500DRT3SP Datasheet

DirectRFQ

0230.500DRT1P

Littelfuse Inc.In Stock: 34310230.500DRT1P Datasheet

Parametric EquivalentRFQ

0230.500DRT1SP

Littelfuse Inc.In Stock: 7420230.500DRT1SP Datasheet

Parametric EquivalentRFQ

0230.500DRT2P

Littelfuse Inc.In Stock: 8450230.500DRT2P Datasheet

Parametric EquivalentRFQ

0230.500DRT2SP

Littelfuse Inc.In Stock: 12630230.500DRT2SP Datasheet

Parametric EquivalentRFQ

0230.500DRT3P

Littelfuse Inc.In Stock: 9120230.500DRT3P Datasheet

Parametric EquivalentRFQ

0230.500MRT1SSP

Littelfuse Inc.In Stock: 7460230.500MRT1SSP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 0230.500DRT3SW is determined by the following critical parameters:

• Current Rating: 500 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: 1.16 (exact match required)

Substitute parts are grouped into two categories:

Direct Manufacturer Substitutes (Same Packaging): Parts with identical electrical and mechanical specifications but different packaging configurations (Tape & Reel or Cut Tape) from the original axial through-hole cartridge.

Parametric Equivalents (Active Status): Parts with identical electrical and mechanical specifications and active product status, available in alternative packaging formats. These parts provide enhanced compliance certifications and improved availability compared to the obsolete main part.

Parameter Comparison

Engineering Selection Recommendations

The 0230.500DRT3SW is obsolete and no longer in active production. All listed substitute parts maintain identical electrical and mechanical specifications, ensuring functional compatibility in circuit applications.

For new designs and production applications: Select from active-status parts (0230.500DRT3SP, 0230.500DRT1P, 0230.500DRT1SP, 0230.500DRT2P, 0230.500DRT2SP, 0230.500DRT3P, or 0230.500MRT1SSP). These parts provide ROHS3 compliance and enhanced DC voltage rating (125 V DC) compared to the obsolete part.

For packaging considerations: Cut Tape (CT) packaging is available via 0230.500DRT1P for automated assembly processes. Tape & Reel (TR) packaging is available across multiple part numbers for high-volume production.

For compliance requirements: All active substitute parts carry CE, CSA, and UL approvals, compared to the obsolete part's CSA and UL approvals only.

Frequently Asked Questions (FAQ)

Q: Can the 0230.500DRT3SW be directly replaced with any of the listed substitute parts?

A: Yes. All substitute parts maintain the same current rating (500 mA), AC voltage rating (250 V), response time (Slow Blow), fuse type (Cartridge, Glass), physical dimensions (0.177" Dia x 0.571" L), and melting I²t value (1.16). The primary differences are product status (active vs. obsolete), packaging format, and enhanced DC voltage rating in substitute parts.

Q: What is the difference between the substitute parts?

A: All substitute parts are electrically and mechanically identical. Differences exist only in packaging format (Cut Tape vs. Tape & Reel) and internal part numbering designations. Selection should be based on assembly process requirements and inventory management practices.

Q: Does the DC voltage rating difference affect substitution?

A: The obsolete 0230.500DRT3SW does not specify a DC voltage rating. All active substitute parts specify 125 V DC rating. This additional specification in substitute parts provides enhanced capability and does not restrict their use in applications originally designed for the 0230.500DRT3SW.

Q: Are all substitute parts RoHS compliant?

A: The obsolete 0230.500DRT3SW is RoHS non-compliant. All active substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: Which substitute part should be selected for automated assembly?

A: The 0230.500DRT1P (Cut Tape packaging) is suitable for automated pick-and-place assembly processes. Tape & Reel packaged alternatives (0230.500DRT3SP, 0230.500DRT1SP, 0230.500DRT2P, 0230.500DRT2SP, 0230.500DRT3P, 0230.500MRT1SSP) are also compatible with standard reel-fed assembly equipment.

Q: Are approval certifications identical across all substitute parts?

A: The obsolete 0230.500DRT3SW carries CSA and UL approvals. All active substitute parts carry CE, CSA, and UL approvals, providing broader regulatory coverage.