BK/GLX-3 Equivalent & Substitute Parts Reference

Part Overview

The BK/GLX-3 is a board mount fuse designed for through-hole radial applications in 125 VAC circuits. Manufactured by Eaton - Electronics Division, this fast-blow fuse operates at 3 A with a 50 A breaking capacity and is classified as an active product. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part number becomes unavailable or when alternative compliance certifications are required.

Substiute Parts

BK/GLX-3

Eaton - Electronics DivisionIn Stock: 982BK/GLX-3 Datasheet

Current PartRFQ

GLX-3

Eaton - Electronics DivisionIn Stock: 748GLX-3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the BK/GLX-3 is determined by strict equivalence across the following electrical and mechanical parameters:

• Current Rating: 3 A (exact match required)
• Voltage Rating (AC): 125 V (exact match required)
• Mounting Type: Through Hole (exact match required)
• Fuse Type: Board Mount (Cartridge Style Excluded) (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: Radial Bend Cylinder (exact match required)
• Size / Dimension: 0.146" Dia x 0.299" L (3.70mm x 7.60mm) (exact match required)
• Breaking Capacity @ Rated Voltage: 50 A (exact match required)

The substitute part GLX-3 from Eaton - Electronics Division meets all electrical and mechanical equivalence criteria. The primary distinction between the main part and the substitute is the RoHS compliance status and corresponding HTSUS classification.

Parameter Comparison

Engineering Selection Recommendations

BK/GLX-3 (Main Part): Select this part number when RoHS non-compliant components are acceptable for the application. This part maintains active product status and is available in higher inventory quantity (872 pcs).

GLX-3 (Substitute): Select this part number when RoHS compliance is required by design specifications, regulatory requirements, or customer mandates. This substitute maintains electrical and mechanical equivalence while providing RoHS compliant certification. Product status is active with 686 pcs in stock.

Both part numbers are functionally interchangeable from an electrical and mechanical standpoint. Selection between them is determined solely by compliance requirements and inventory availability.

Frequently Asked Questions (FAQ)

Q: Are BK/GLX-3 and GLX-3 electrically interchangeable?

A: Yes. Both parts operate at 3 A, 125 VAC, with fast-blow response time and 50 A breaking capacity. They are electrically equivalent.

Q: Are BK/GLX-3 and GLX-3 mechanically interchangeable?

A: Yes. Both parts use identical through-hole radial bend cylinder packaging with dimensions of 0.146" Dia x 0.299" L (3.70mm x 7.60mm). They mount identically on PCBs.

Q: What is the primary difference between these part numbers?

A: The primary difference is RoHS compliance status. BK/GLX-3 is RoHS non-compliant, while GLX-3 is RoHS compliant. This difference is reflected in the HTSUS classification (8536.10.0040 vs. 8536.10.0020).

Q: Can I substitute GLX-3 for BK/GLX-3 in existing designs?

A: Yes, provided that RoHS compliance does not conflict with existing design specifications or regulatory requirements. The electrical and mechanical parameters are identical.

Q: Can I substitute BK/GLX-3 for GLX-3 in RoHS-compliant designs?

A: No. If RoHS compliance is a design requirement, BK/GLX-3 cannot be used as it is RoHS non-compliant.

Q: Are there inventory differences between these parts?

A: Yes. BK/GLX-3 has 872 pcs in stock, while GLX-3 has 686 pcs in stock. Inventory levels may affect procurement decisions.

Q: Do both parts have the same moisture sensitivity level?

A: Yes. Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions.