AGW-4 Equivalent & Substitute Parts Reference

Part Overview

The AGW-4 is a 4 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 overcurrent protection in electrical circuits rated up to 32 V AC. The part maintains Active product status with 959 units currently in stock. Substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part number becomes unavailable or when alternative sourcing is required.

Substiute Parts

AGW-4

Eaton - Electronics DivisionIn Stock: 1068AGW-4 Datasheet

Current PartRFQ

BK/AGW-4

Eaton - Electronics DivisionIn Stock: 735BK/AGW-4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AGW-4 are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Critical Parameters for Substitution:

• Current Rating: 4 A (exact match required)
• Voltage Rating (AC): 32 V (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)
• Breaking Capacity @ Rated Voltage: 1 kA (exact match required)
• DC Cold Resistance: 0.024 Ohms (exact match required)
• Size / Dimension: 0.250" Dia x 0.875" L (exact match required)

The substitute part BK/AGW-4 meets all critical electrical and mechanical parameters, confirming functional equivalence within the AGW series from Eaton - Electronics Division.

Parameter Comparison

Engineering Selection Recommendations

Both AGW-4 and BK/AGW-4 are Active products manufactured by Eaton - Electronics Division with identical electrical and mechanical specifications. Selection between these part numbers should be based on:

Inventory Availability: AGW-4 has 959 units in stock, while BK/AGW-4 has 669 units in stock. Choose based on procurement lead time requirements and supply chain strategy.

Compliance Considerations: Both parts carry RoHS non-compliant status and MSL Level 1 (Unlimited moisture sensitivity). No compliance differentiation exists between the two part numbers.

Regulatory Classification: Both parts are classified under ECCN EAR99. Tariff codes differ slightly (HTSUS 8536.10.0020 for AGW-4 and 8536.10.0040 for BK/AGW-4), which may affect import/export documentation and duties depending on destination.

Application Compatibility: Both parts are functionally equivalent for all 32 V AC/DC circuits requiring 4 A fast-blow protection in 7AG cartridge format. No technical differentiation exists for circuit design or performance.

Frequently Asked Questions (FAQ)

Q: Can BK/AGW-4 be used as a direct replacement for AGW-4?

A: Yes. BK/AGW-4 is a parametric equivalent with identical current rating (4 A), voltage rating (32 V AC), fuse type (cartridge, glass), response time (fast blow), package format (7AG, 1/4" x 7/8"), breaking capacity (1 kA), and DC cold resistance (0.024 Ohms). Both parts are manufactured by Eaton - Electronics Division and maintain Active product status.

Q: Are there any physical differences between AGW-4 and BK/AGW-4?

A: No. Both parts share identical dimensions (0.250" Dia x 0.875" L / 6.35 mm x 22.23 mm) and require the same holder type. Physical interchangeability is confirmed.

Q: What is the significance of the different HTSUS codes?

A: The HTSUS codes (8536.10.0020 for AGW-4 and 8536.10.0040 for BK/AGW-4) are tariff classification codes used for import/export purposes. They do not indicate functional differences but may affect duty calculations and customs documentation depending on shipment destination and origin.

Q: Do both parts have the same RoHS compliance status?

A: Yes. Both AGW-4 and BK/AGW-4 are RoHS non-compliant. If RoHS compliance is required for your application, neither part number is suitable.

Q: What does MSL Level 1 mean for these fuses?

A: MSL Level 1 (Unlimited) indicates that these glass cartridge fuses have unlimited shelf life and do not require moisture-controlled storage or handling. Standard storage conditions are acceptable.

Q: Which part should I select based on inventory?

A: AGW-4 has higher inventory (959 units) compared to BK/AGW-4 (669 units). For immediate availability, AGW-4 is the preferred choice. For alternative sourcing or backup supply, BK/AGW-4 is available.

Q: Are these fuses suitable for both AC and DC circuits?

A: Yes. Both AGW-4 and BK/AGW-4 are rated for 32 V AC/DC operation, confirming suitability for both alternating and direct current applications within the specified voltage range.