Littelfuse 0230.250DRT2SW Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230.250DRT2SW is a 250 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

0230.250DRT2SW

Littelfuse Inc.In Stock: 10660230.250DRT2SW Datasheet

Current PartRFQ

0230.250DRT2SP

Littelfuse Inc.In Stock: 8000230.250DRT2SP Datasheet

DirectRFQ

0230.250DRT1P

Littelfuse Inc.In Stock: 11960230.250DRT1P Datasheet

Parametric EquivalentRFQ

0230.250DRT1SP

Littelfuse Inc.In Stock: 11810230.250DRT1SP Datasheet

Parametric EquivalentRFQ

0230.250DRT2P

Littelfuse Inc.In Stock: 10510230.250DRT2P Datasheet

Parametric EquivalentRFQ

0230.250DRT3P

Littelfuse Inc.In Stock: 11740230.250DRT3P Datasheet

Parametric EquivalentRFQ

0230.250DRT3SP

Littelfuse Inc.In Stock: 11820230.250DRT3SP Datasheet

Parametric EquivalentRFQ

0230.250MRT1SSP

Littelfuse Inc.In Stock: 7880230.250MRT1SSP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 0230.250DRT2SW is determined by the following critical parameters that must remain constant:

• Current Rating: 250 mA
• Voltage Rating - AC: 250 V
• Fuse Type: Cartridge, Glass
• Response Time: Slow Blow
• Mounting Type: Through Hole
• Package / Case: Cartridge, Non-Standard (Axial)
• Size / Dimension: 0.177" Dia x 0.571" L (4.50mm x 14.50mm)
• Melting I²t: 0.216
• Operating Temperature: -55°C ~ 125°C

All substitute parts listed maintain these core electrical and mechanical parameters. Variations in packaging format (Tape & Reel vs. bulk), DC voltage rating capability, RoHS compliance status, and approval certifications do not affect functional equivalence in AC-rated applications.

Parameter Comparison

Engineering Selection Recommendations

The 0230.250DRT2SW is obsolete and no longer in active production. All listed substitute parts are active Littelfuse 230 series glass cartridge fuses that maintain electrical and mechanical equivalence for AC-rated applications at 250 mA and 250 V.

Substitute parts 0230.250DRT2SP, 0230.250DRT1P, 0230.250DRT1SP, 0230.250DRT2P, 0230.250DRT3P, 0230.250DRT3SP, and 0230.250MRT1SSP are functionally equivalent and provide enhanced compliance status. All substitute parts carry CE, CSA, and UL approvals and are ROHS3 compliant, compared to the original part's CSA and UL approvals with RoHS non-compliance.

For applications requiring DC voltage capability, all substitute parts are rated for 125 V DC with 10 kA breaking capacity, providing additional operational flexibility beyond the original part's AC-only specification.

Packaging differences exist between the original part (bulk format) and substitute parts (Tape & Reel format). This distinction affects procurement and assembly processes but does not impact electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the 0230.250DRT2SW be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts maintain the critical electrical parameters (250 mA current rating, 250 V AC voltage rating, slow-blow response) and mechanical specifications (cartridge glass fuse, axial through-hole mounting, 4.50mm x 14.50mm dimensions) required for functional equivalence in AC applications.

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

A: The primary differences are product status (obsolete vs. active), compliance certifications (substitute parts include CE approval), RoHS compliance (substitute parts are ROHS3 compliant), and DC voltage rating capability (substitute parts rated for 125 V DC). All substitute parts provide enhanced regulatory compliance and operational flexibility.

Q: Does packaging format affect compatibility?

A: Packaging format (bulk vs. Tape & Reel) affects procurement, storage, and assembly processes but does not affect electrical or mechanical performance. The fuse cartridge itself remains identical across all part numbers.

Q: Are there any differences in breaking capacity between the original and substitute parts?

A: The original part specifies 35A breaking capacity at rated voltage. Substitute parts specify 35A AC and 10kA DC breaking capacity. For AC applications at 250 V, the 35A AC specification is equivalent. The additional 10kA DC rating provides capability for DC circuit protection.

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

A: All substitute parts are functionally equivalent for AC applications. Selection should be based on packaging requirements (Tape & Reel vs. bulk), inventory availability, and procurement lead times. All parts carry identical electrical and mechanical specifications for the 250 mA, 250 V AC slow-blow cartridge fuse category.