AGW-3 Equivalent & Substitute Parts Reference

Part Overview

The AGW-3 is a 3 A, 32 V AC/DC fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division. This component is designed for use in fuse holders and provides circuit protection in applications requiring fast response to overcurrent conditions. The part maintains Active product status with 860 units in current inventory. Substitute parts are identified to support procurement flexibility, supply chain continuity, and component availability across equivalent electrical and mechanical specifications.

Substiute Parts

AGW-3

Eaton - Electronics DivisionIn Stock: 939AGW-3 Datasheet

Current PartRFQ

BK/AGW-3

Eaton - Electronics DivisionIn Stock: 859BK/AGW-3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AGW-3 are identified based on strict equivalence across the following critical parameters:

• Current Rating: 3 A (exact match required)
• Voltage Rating: 32 V AC (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 7AG, 1/4" x 7/8" (exact match required)
• Physical Dimensions: 0.250" Dia x 0.875" L (exact match required)
• Breaking Capacity: 1 kA (exact match required)
• DC Cold Resistance: 0.036 Ohms (exact match required)

Substitution is valid only when all parameters listed above are identical. The BK/AGW-3 meets all equivalence criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both AGW-3 and BK/AGW-3 are Active status products manufactured by Eaton - Electronics Division. Selection between these parts should be based on:

1. Inventory Availability: AGW-3 has 860 units in stock; BK/AGW-3 has 797 units in stock. Both quantities support current procurement needs.

2. Compliance Status: Both parts are RoHS non-compliant and carry identical MSL ratings (1 - Unlimited). No compliance differentiation exists between the two parts.

3. Electrical and Mechanical Equivalence: All critical parameters—current rating, voltage rating, fuse type, response time, package designation, physical dimensions, breaking capacity, and DC cold resistance—are identical.

4. Application Compatibility: Both parts are interchangeable in any circuit application requiring a 3 A, 32 V AC/DC fast-blow glass cartridge fuse in 7AG form factor.

Selection may be based on supplier availability, lead time, or procurement preference, as no technical differentiation exists.

Frequently Asked Questions (FAQ)

Q: Can BK/AGW-3 be used as a direct replacement for AGW-3?

A: Yes. BK/AGW-3 is a parametric equivalent with identical electrical ratings (3 A, 32 V AC/DC), fuse type (cartridge, glass), response time (fast blow), package designation (7AG), physical dimensions (0.250" Dia x 0.875" L), breaking capacity (1 kA), and DC cold resistance (0.036 Ohms). Direct substitution is valid.

Q: Are there any compliance or certification differences between AGW-3 and BK/AGW-3?

A: No. Both parts share identical RoHS status (non-compliant), MSL rating (1 - Unlimited), and are manufactured by the same company. No compliance differentiation exists.

Q: What is the 7AG package designation?

A: 7AG refers to the standardized cartridge fuse form factor with dimensions of 1/4" diameter by 7/8" length (6.35mm x 22.23mm). This designation indicates the physical size and holder compatibility. Both AGW-3 and BK/AGW-3 conform to this standard.

Q: What does "Fast Blow" response time mean?

A: Fast Blow indicates the fuse element responds quickly to overcurrent conditions, providing rapid circuit interruption. This characteristic is identical in both AGW-3 and BK/AGW-3.

Q: Can these fuses be used without a holder?

A: No. Both AGW-3 and BK/AGW-3 require a compatible fuse holder for installation and operation. The mounting type is specified as "Requires Holder" for both parts.

Q: What is the breaking capacity specification?

A: Breaking capacity of 1 kA indicates the maximum fault current the fuse can safely interrupt at its rated voltage (32 V AC). This specification is identical for both AGW-3 and BK/AGW-3.

Q: Is there a difference in DC cold resistance between the two parts?

A: No. Both AGW-3 and BK/AGW-3 have a DC cold resistance of 0.036 Ohms, indicating identical electrical characteristics under DC measurement conditions.