SCHURTER 8020.0606.G Ceramic Fuse 25A 250VAC Equivalent & Substitute Parts

Part Overview

The SCHURTER 8020.0606.G is a ceramic cartridge fuse rated for 25 A at 250 V AC with slow-blow response characteristics. This component is designed for use in 3AB and 3AG fuse holders with standard 1/4" x 1-1/4" dimensions. The part maintains active product status and is ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical compatibility, and thermal performance specifications.

Key Parameters

Parameter	Value
Current Rating	25 A
Voltage Rating - AC	250 V
Fuse Type	Cartridge, Ceramic
Response Time	Slow Blow
Package / Case	3AB, 3AG, 1/4" x 1-1/4"
Breaking Capacity @ Rated Voltage	500 A
Melting I²t	1010
Operating Temperature Range	-40°C ~ 85°C
DC Cold Resistance	0.0021 Ohms
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on parametric alignment:

Parametric Equivalent: Parts that match all critical electrical and mechanical specifications of the main part, including current rating, AC voltage rating, fuse type, response time, and package dimensions. These parts are direct functional replacements.

Similar Parts: Parts that match the primary electrical ratings (25 A, 250 V AC) and mechanical package (3AB, 3AG, 1/4" x 1-1/4") but include additional DC voltage ratings and extended operating temperature ranges. These parts provide enhanced capability within the same form factor and holder compatibility.

The key parameters determining substitution eligibility are:

Current Rating: 25 A
Voltage Rating - AC: 250 V
Fuse Type: Cartridge, Ceramic
Response Time: Slow Blow
Package / Case: 3AB, 3AG, 1/4" x 1-1/4"

Parameter Comparison

Parameter	8020.0606.G (Main)	8020.0606 (Parametric Equivalent)	0326025.HXP (Similar)	0326025.MXP (Similar)
Manufacturer	SCHURTER Inc.	SCHURTER Inc.	Littelfuse Inc.	Littelfuse Inc.
Current Rating (Amps)	25 A	25 A	25 A	25 A
Voltage Rating - AC	250 V	250 V	250 V	250 V
Voltage Rating - DC	Not specified	Not specified	125 V	125 V
Fuse Type	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic
Response Time	Slow Blow	Slow Blow	Slow Blow	Slow Blow
Package / Case	3AB, 3AG, 1/4" x 1-1/4"	3AB, 3AG, 1/4" x 1-1/4"	3AB, 3AG, 1/4" x 1-1/4"	3AB, 3AG, 1/4" x 1-1/4"
Size / Dimension	0.250" Dia x 1.252" L (6.35mm x 31.80mm)	0.250" Dia x 1.252" L (6.35mm x 31.80mm)	0.250" Dia x 1.250" L (6.35mm x 31.75mm)	0.250" Dia x 1.250" L (6.35mm x 31.75mm)
Breaking Capacity @ Rated Voltage	500 A	500 A	400 A AC, 600 A DC	400 A AC, 600 A DC
Melting I²t	1010	1010	1030	1030
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 125°C
DC Cold Resistance	0.0021 Ohms	0.0021 Ohms	0.0024 Ohms	0.0024 Ohms
Approval Agency	cURus	cURus	CE, CSA, K-MARK, PSE, UL	CE, CSA, K-MARK, PSE, UL
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

8020.0606 (SCHURTER Inc.): This parametric equivalent maintains identical electrical and mechanical specifications to the main part. Both parts carry cURus approval and ROHS3 compliance. Selection of this part is appropriate for direct replacement applications requiring no design modification.

0326025.HXP and 0326025.MXP (Littelfuse Inc.): These similar parts provide expanded operational capability through additional DC voltage rating (125 V) and extended operating temperature range (-55°C ~ 125°C). Both parts carry broader regulatory approvals including CE, CSA, K-MARK, PSE, and UL certifications. The Littelfuse parts are suitable for applications requiring enhanced thermal performance or dual AC/DC voltage operation. Dimensional tolerance differences (31.75mm vs. 31.80mm length) remain within standard fuse holder specifications for 3AB and 3AG packages.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the main part specifications.

Frequently Asked Questions (FAQ)

Q: Can the 8020.0606 be used as a direct replacement for the 8020.0606.G?

A: Yes. The 8020.0606 is a parametric equivalent with identical current rating, voltage rating, fuse type, response time, and package dimensions. Both parts are ROHS3 compliant and carry cURus approval.

Q: What is the difference between the SCHURTER and Littelfuse substitute parts?

A: The Littelfuse parts (0326025.HXP and 0326025.MXP) provide additional DC voltage rating (125 V) and extended operating temperature range (-55°C ~ 125°C) compared to the SCHURTER parts. Both Littelfuse parts carry expanded regulatory certifications (CE, CSA, K-MARK, PSE, UL) versus the cURus approval of SCHURTER parts.

Q: Are the dimensional differences between substitute parts significant?

A: The length difference between SCHURTER parts (31.80mm) and Littelfuse parts (31.75mm) is 0.05mm. Both dimensions are compatible with standard 3AB and 3AG fuse holders designed for 1/4" x 1-1/4" cartridge fuses.

Q: Can Littelfuse parts be used in applications that only require AC operation?

A: Yes. The Littelfuse parts (0326025.HXP and 0326025.MXP) are rated for 250 V AC operation and are suitable for AC-only applications. The additional DC voltage rating does not restrict AC performance.

Q: What is the significance of the melting I²t difference?

A: The SCHURTER parts have a melting I²t of 1010, while the Littelfuse parts have 1030. This represents a 2% difference in thermal energy absorption. Both values fall within the slow-blow fuse classification for 25 A cartridge fuses.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed—8020.0606.G, 8020.0606, 0326025.HXP, and 0326025.MXP—are ROHS3 compliant and REACH unaffected.

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