AGC-1-3/4-R Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The AGC-1-3/4-R is a 1.75 A, 250 V AC/DC fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division. This component is classified as Active product status and requires a compatible fuse holder (3AB, 3AG type) for installation. Glass cartridge fuses serve as overcurrent protection devices in electrical circuits and must be replaced when they operate at rated conditions. Identifying equivalent and substitute parts ensures circuit continuity and maintains protection specifications when the primary part becomes unavailable.

Substiute Parts

AGC-1-3/4-R

Eaton - Electronics DivisionIn Stock: 965AGC-1-3/4-R Datasheet

Current PartRFQ

BK/AGC-1-3/4-R

Eaton - Electronics DivisionIn Stock: 1094BK/AGC-1-3/4-R Datasheet

Parametric EquivalentRFQ

03121.75HXP

Littelfuse Inc.In Stock: 104103121.75HXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AGC-1-3/4-R are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Current Rating: 1.75 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Size / Dimension: 0.250" Dia x 1.250" L (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

All substitute parts listed below meet these criteria without exception. Substitution is valid only when all parameters align with the specifications provided.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: AGC-1-3/4-R (Eaton)

The AGC-1-3/4-R maintains Active product status with RoHS compliance. This part is suitable for applications requiring standard RoHS certification.

Parametric Equivalent: BK/AGC-1-3/4-R (Eaton)

The BK/AGC-1-3/4-R is a direct parametric equivalent manufactured by Eaton - Electronics Division. It matches all electrical and mechanical specifications of the primary part. This variant carries ROHS3 compliance and REACH Unaffected status, providing enhanced regulatory documentation. Selection between AGC-1-3/4-R and BK/AGC-1-3/4-R depends on specific regulatory requirements of the end application.

Similar Manufacturer Part: 03121.75HXP (Littelfuse)

The 03121.75HXP from Littelfuse Inc. meets all critical electrical and mechanical parameters. This part carries ROHS3 compliance, REACH Unaffected status, and holds multiple approval agencies (CE, CSA, PSE, UL). Additional technical data includes Breaking Capacity of 100A, Melting I²t of 3.6, and DC Cold Resistance of 0.0856 Ohms. Selection of the Littelfuse part is appropriate when multi-agency approvals or specific performance metrics are required by circuit design specifications.

All three parts are Active status and suitable for direct substitution based on parameter equivalence.

Frequently Asked Questions (FAQ)

Q: Can BK/AGC-1-3/4-R be used as a direct replacement for AGC-1-3/4-R?

A: Yes. Both parts are manufactured by Eaton - Electronics Division and share identical electrical ratings (1.75 A, 250 V AC), fuse type (Cartridge, Glass), response time (Fast Blow), package designation (3AB, 3AG), physical dimensions (0.250" Dia x 1.250" L), and operating temperature range (-55°C ~ 125°C). The BK variant provides ROHS3 compliance and REACH documentation.

Q: Is the Littelfuse 03121.75HXP compatible with the same fuse holder as AGC-1-3/4-R?

A: Yes. The 03121.75HXP shares the identical package designation (3AB, 3AG) and physical dimensions (0.250" Dia x 1.250" L), ensuring mechanical compatibility with holders designed for the AGC-1-3/4-R.

Q: What are the key electrical parameters that must match for substitution?

A: Current Rating (1.75 A), Voltage Rating - AC (250 V), Fuse Type (Cartridge, Glass), and Response Time (Fast Blow) must match exactly. Physical dimensions and package designation must also be identical.

Q: Does the Littelfuse part offer additional technical specifications?

A: Yes. The 03121.75HXP provides Breaking Capacity (100A), Melting I²t (3.6), and DC Cold Resistance (0.0856 Ohms). These parameters are not specified for the Eaton parts in the provided data.

Q: What regulatory certifications apply to each part?

A: AGC-1-3/4-R and BK/AGC-1-3/4-R carry RoHS/ROHS3 compliance. The 03121.75HXP carries ROHS3 compliance, REACH Unaffected status, and holds CE, CSA, PSE, and UL approvals.

Q: Are all three parts currently in stock?

A: Yes. AGC-1-3/4-R has 886 pieces, BK/AGC-1-3/4-R has 996 pieces, and 03121.75HXP has 1029 pieces available as new original inventory.