SCHURTER 0001.1021 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0001.1021 is a 500 mA, 250 V AC/DC fast-blow glass fuse cartridge in 3AB/3AG package format (1/4" x 1-1/4"). This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing system maintenance and new designs. Substitute parts must maintain electrical compatibility while meeting current manufacturing and compliance standards.

Substiute Parts

0001.1021

SCHURTER Inc.In Stock: 10740001.1021 Datasheet

Current PartRFQ

8020.5065

SCHURTER Inc.In Stock: 16828020.5065 Datasheet

DirectRFQ

0314.500HXP

Littelfuse Inc.In Stock: 25690314.500HXP Datasheet

DirectRFQ

BK/ABC-1/2-R

Eaton - Electronics DivisionIn Stock: 865BK/ABC-1/2-R Datasheet

DirectRFQ

0312.500HXP

Littelfuse Inc.In Stock: 40160312.500HXP Datasheet

SimilarRFQ

0312.500MXP

Littelfuse Inc.In Stock: 21180312.500MXP Datasheet

SimilarRFQ

0312.500VXP

Littelfuse Inc.In Stock: 10580312.500VXP Datasheet

SimilarRFQ

AGC-1/2-R

Eaton - Electronics DivisionIn Stock: 1065AGC-1/2-R Datasheet

SimilarRFQ

BK/AGC-1/2-R

Eaton - Electronics DivisionIn Stock: 766BK/AGC-1/2-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 0001.1021 is determined by the following mandatory parameters:

• Current Rating: 500 mA (exact match required)
• Voltage Rating (AC): 250 V (minimum requirement)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (physical and electrical compatibility)
• Fuse Type: Cartridge, Glass or Ceramic (both acceptable for this application)
• Response Time: Fast Blow (required for circuit protection characteristics)
• Mounting Type: Requires Holder (standard for cartridge fuses)

Substitute parts are categorized into two groups:

Direct Substitutes (Ceramic Cartridge): Parts with identical electrical ratings but ceramic construction, offering enhanced voltage capability and active product status.

Similar Substitutes (Glass Cartridge): Parts with identical fuse type and electrical ratings, providing direct functional equivalence with active manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Electrical Equivalence with Enhanced Voltage Capability:

SCHURTER 8020.5065 (ceramic cartridge, 500 V AC/DC) provides identical current rating and package compatibility with increased voltage margin. Active product status and cURus certification support long-term availability and regulatory compliance.

For Identical Fuse Type and Electrical Characteristics:

Littelfuse 0312.500HXP, 0312.500MXP, and 0312.500VXP (glass cartridges, 250 V AC) maintain the original fuse construction with active manufacturing status. All three variants carry CE, CSA, and UL certifications, supporting global deployment requirements.

For Ceramic Construction with Dual Voltage Rating:

Littelfuse 0314.500HXP and Eaton BK/ABC-1/2-R (ceramic cartridges, 250 V AC / 125 V DC) offer ceramic fuse technology with extended operating temperature ranges (-55°C ~ 125°C) and higher breaking capacity ratings. Both carry CSA and UL certifications.

For Glass Cartridge Alternatives:

Eaton AGC-1/2-R and BK/AGC-1/2-R (glass cartridges, 250 V AC) provide glass fuse construction with CSA and UL certifications and extended operating temperature ranges. These parts maintain functional equivalence to the original SCHURTER 0001.1021.

All substitute parts are active products with current manufacturing support and compliance certifications, ensuring supply chain continuity and regulatory adherence.

Frequently Asked Questions (FAQ)

Q: Can SCHURTER 8020.5065 replace SCHURTER 0001.1021 in all applications?

A: SCHURTER 8020.5065 is electrically compatible at the 500 mA, 250 V AC rating. The ceramic construction and 500 V DC rating provide additional voltage margin. Physical package compatibility (3AB, 3AG, 1/4" x 1-1/4") is maintained. Verify application voltage requirements before substitution.

Q: What is the difference between glass and ceramic fuse cartridges in this category?

A: Both glass and ceramic cartridges in this group maintain identical current ratings (500 mA), AC voltage ratings (250 V), response time (fast blow), and package format (3AB, 3AG). Ceramic cartridges offer higher DC voltage ratings and breaking capacity. Glass cartridges provide direct functional equivalence to the original part.

Q: Are all substitute parts physically interchangeable with the SCHURTER 0001.1021?

A: All substitute parts share the 3AB, 3AG package format and 1/4" x 1-1/4" physical dimensions. Minor dimensional variations (0.250" Dia x 1.250" L vs. 0.250" Dia x 1.252" L) are within standard cartridge fuse tolerances and do not affect holder compatibility.

Q: Which substitute parts have the broadest regulatory certifications?

A: Littelfuse 0312.500HXP, 0312.500MXP, 0312.500VXP, and Littelfuse 0314.500HXP carry CE, CSA, and UL certifications. Eaton parts (AGC-1/2-R, BK/AGC-1/2-R, BK/ABC-1/2-R) carry CSA and UL certifications. SCHURTER 8020.5065 carries cURus certification.

Q: What is the significance of the melting I²t value in fuse selection?

A: Melting I²t indicates the thermal energy required to melt the fuse element. Values provided in the specification data reflect fuse-specific thermal characteristics. Substitution requires matching current rating and response time; I²t values are provided for reference in circuit protection analysis.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed carry RoHS compliance status (ROHS3 Compliant or RoHS Compliant), meeting environmental and hazardous substance restrictions for electronic components.