AGC-7-1/2-R Equivalent & Substitute Parts

Part Overview

The AGC-7-1/2-R is a 7.5 A, 250 V AC/DC fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division. This component is designed for use in 3AB and 3AG fuse holders with 1/4" x 1-1/4" dimensions. The part maintains Active product status and is RoHS Compliant, making it suitable for current circuit protection applications. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and component availability across manufacturing and maintenance operations.

Substiute Parts

AGC-7-1/2-R

Eaton - Electronics DivisionIn Stock: 970AGC-7-1/2-R Datasheet

Current PartRFQ

BK/AGC-7-1/2-R

Eaton - Electronics DivisionIn Stock: 1866BK/AGC-7-1/2-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AGC-7-1/2-R are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters:

• Current Rating: 7.5 A (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Response Time: Fast Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 200 A (exact match required)
• Melting I²t: 216 (exact match required)

Mechanical Parameters:

• Fuse Type: Cartridge, Glass (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)

Environmental & Compliance Parameters:

• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• DC Cold Resistance: 0.012 Ohms (exact match required)
• Approval Agency: CSA, UL (exact match required)

The BK/AGC-7-1/2-R meets all substitution criteria and is classified as a direct equivalent to the AGC-7-1/2-R.

Parameter Comparison

Engineering Selection Recommendations

Both the AGC-7-1/2-R and BK/AGC-7-1/2-R are manufactured by Eaton - Electronics Division and maintain Active product status. The parts are electrically and mechanically identical across all critical parameters including current rating, voltage rating, response time, breaking capacity, and physical dimensions.

The BK/AGC-7-1/2-R carries ROHS3 Compliant certification compared to RoHS Compliant for the AGC-7-1/2-R, indicating enhanced compliance with current RoHS directives. Both parts hold CSA and UL approvals, confirming suitability for regulated applications.

Selection between these parts should be based on supply availability and compliance requirements specific to the end application. The BK/AGC-7-1/2-R variant offers higher inventory availability (1775 Pcs vs. 871 Pcs) and updated RoHS3 compliance status.

Frequently Asked Questions (FAQ)

Q: Can the BK/AGC-7-1/2-R be used as a direct replacement for the AGC-7-1/2-R?

A: Yes. The BK/AGC-7-1/2-R is a direct equivalent. All electrical parameters (7.5 A, 250 V AC, fast-blow response, 200 A breaking capacity, 216 melting I²t), mechanical parameters (3AB/3AG package, 1/4" x 1-1/4" dimensions), and environmental specifications (-55°C ~ 125°C operating range, 0.012 Ohms DC cold resistance) are identical. Both parts carry CSA and UL approvals.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: ROHS3 Compliant indicates compliance with the current RoHS 3 directive (2011/65/EU as amended by 2015/863/EU), which includes restrictions on additional substances beyond the original RoHS directive. Both certifications confirm the part meets hazardous substance restrictions; ROHS3 represents the more recent regulatory standard.

Q: Are these fuses compatible with 3AB and 3AG fuse holders?

A: Yes. Both the AGC-7-1/2-R and BK/AGC-7-1/2-R are specified for use in 3AB and 3AG fuse holders. The 1/4" x 1-1/4" (6.35mm x 31.75mm) physical dimensions conform to these holder specifications.

Q: What is the melting I²t value and why is it important?

A: The melting I²t value of 216 represents the thermal energy required to melt the fuse element. This parameter is critical for ensuring the fuse operates within the intended time-current characteristic curve and provides appropriate protection for the circuit.

Q: Can these fuses be used in DC applications?

A: These fuses are rated for 250 V AC/DC operation. The DC cold resistance of 0.012 Ohms is specified for DC applications. Verify that the DC voltage does not exceed the AC voltage rating of 250 V.

Q: What is the breaking capacity and why does it matter?

A: The breaking capacity of 200 A at rated voltage indicates the maximum fault current the fuse can safely interrupt without rupturing or creating a hazard. This specification ensures safe operation under short-circuit conditions.