Littelfuse 0230.600DRT3SW Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230.600DRT3SW is a 600 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 available from the same manufacturer series with active product status and enhanced compliance certifications, providing direct functional replacement options for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Manufacturer	Littelfuse Inc.
Series	230
Current Rating	600 mA
Voltage Rating (AC)	250 V
Response Time	Slow Blow
Fuse Type	Cartridge, Glass
Package / Case	Cartridge, Non-Standard (Axial)
Mounting Type	Through Hole
Size / Dimension	0.177" Dia x 0.571" L (4.50mm x 14.50mm)
Operating Temperature Range	-55°C ~ 125°C
Melting I²t	1.75
Breaking Capacity @ Rated Voltage	35A
DC Cold Resistance	0.477 Ohms
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the 0230.600DRT3SW is determined by the following critical parameters:

Current Rating: 600 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)
Operating Temperature Range: -55°C ~ 125°C (exact match required)
Melting I²t: 1.75 (exact match required)

All substitute parts listed below maintain these critical parameters. Substitute parts with active product status offer enhanced compliance certifications (ROHS3, CE, REACH Unaffected) compared to the obsolete main part.

Parameter Comparison

Part Number	Manufacturer	Current Rating	Voltage AC	Voltage DC	Response Time	Breaking Capacity AC	Breaking Capacity DC	DC Cold Resistance	Product Status	RoHS Status	Packaging	Inventory
0230.600DRT3SW	Littelfuse Inc.	600 mA	250 V	—	Slow Blow	35A	—	0.477 Ω	Obsolete	RoHS non-compliant	—	915 Pcs
0230.600DRT3SP	Littelfuse Inc.	600 mA	250 V	125 V	Slow Blow	35A	10kA	0.4805 Ω	Active	ROHS3 Compliant	Tape & Reel (TR)	994 Pcs
0230.600DRT1P	Littelfuse Inc.	600 mA	250 V	125 V	Slow Blow	35A	10kA	0.4805 Ω	Active	ROHS3 Compliant	Tape & Reel (TR)	669 Pcs
0230.600DRT1SP	Littelfuse Inc.	600 mA	250 V	125 V	Slow Blow	35A	10kA	0.4805 Ω	Active	ROHS3 Compliant	Tape & Reel (TR)	937 Pcs
0230.600DRT2P	Littelfuse Inc.	600 mA	250 V	125 V	Slow Blow	35A	10kA	0.4805 Ω	Active	ROHS3 Compliant	Tape & Reel (TR)	818 Pcs
0230.600DRT2SP	Littelfuse Inc.	600 mA	250 V	125 V	Slow Blow	35A	10kA	0.4805 Ω	Active	ROHS3 Compliant	Tape & Reel (TR)	666 Pcs
0230.600DRT3P	Littelfuse Inc.	600 mA	250 V	125 V	Slow Blow	35A	10kA	0.4805 Ω	Active	ROHS3 Compliant	Tape & Reel (TR)	1117 Pcs
0230.600MRT1SSP	Littelfuse Inc.	600 mA	250 V	125 V	Slow Blow	35A	10kA	0.4805 Ω	Active	ROHS3 Compliant	Tape & Reel (TR)	972 Pcs

Engineering Selection Recommendations

All substitute parts maintain identical electrical and mechanical specifications to the 0230.600DRT3SW. The primary distinction is product status and compliance certification:

The main part (0230.600DRT3SW) is obsolete and RoHS non-compliant. All substitute parts listed are active products with ROHS3 compliance, CE certification, and REACH Unaffected status. These substitutes are suitable for new designs and production environments requiring current regulatory compliance.

Substitute parts differ in packaging designation (suffix codes P, SP, SSP) and DC voltage rating specification (125 V DC added). The DC voltage rating addition and enhanced breaking capacity specification (10kA DC) represent functional improvements without altering AC circuit performance at the specified 250 V AC, 600 mA rating.

For applications requiring only AC operation at 250 V, 600 mA with slow-blow response, all substitute parts provide direct functional equivalence. Packaging variants (Tape & Reel) are suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can 0230.600DRT3SP replace 0230.600DRT3SW directly?

A: Yes. Both parts maintain identical current rating (600 mA), AC voltage rating (250 V), response time (slow blow), fuse type (cartridge glass), package type (axial cartridge), and physical dimensions (0.177" Dia x 0.571" L). The substitute part is active and ROHS3 compliant.

Q: What is the difference between the suffix codes (P, SP, SSP)?

A: Suffix codes indicate packaging and tape configuration variants. All variants maintain identical electrical and mechanical specifications. Selection depends on assembly process requirements (manual vs. automated tape-and-reel handling).

Q: Does the addition of 125 V DC rating affect AC circuit operation?

A: No. The 125 V DC rating is an additional specification that does not alter performance in AC circuits. AC operation remains at 250 V, 600 mA with slow-blow response characteristics.

Q: Are all substitute parts available in the same physical dimensions?

A: Yes. All substitute parts maintain the same cartridge dimensions: 0.177" Dia x 0.571" L (4.50mm x 14.50mm). Through-hole mounting compatibility is preserved.

Q: What compliance certifications apply to substitute parts?

A: All substitute parts carry CE, CSA, and UL certifications. ROHS3 compliance and REACH Unaffected status are confirmed for all active substitutes.

Q: Can substitute parts be used in existing designs without circuit modification?

A: Yes. Substitute parts are parametric equivalents with identical electrical characteristics and physical form factor. No circuit modifications are required.

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