BK/AGC-3/16-R Equivalent & Substitute Parts

Part Overview

The BK/AGC-3/16-R is a fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division, rated at 187 mA, 250 V AC/DC. This component is designed for circuits requiring fast response protection in applications utilizing 3AB and 3AG holder formats with 1/4" x 1-1/4" dimensions. The part maintains active product status with 932 units in current inventory. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and design standardization across compatible applications.

Substiute Parts

BK/AGC-3/16-R

Eaton - Electronics DivisionIn Stock: 1033BK/AGC-3/16-R Datasheet

Current PartRFQ

0312.187HXP

Littelfuse Inc.In Stock: 13630312.187HXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/AGC-3/16-R is determined by strict alignment of the following critical parameters:

• Current Rating: 187 mA (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)
• Breaking Capacity @ Rated Voltage: 35 A (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

The substitute part 0312.187HXP (Littelfuse Inc., Series 312) satisfies all critical electrical and mechanical parameters, enabling direct functional equivalence in holder-based circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

Both the BK/AGC-3/16-R and 0312.187HXP maintain active product status and satisfy identical electrical and mechanical specifications for 187 mA, 250 V AC/DC fast-blow cartridge fuse applications. Both components are ROHS3 compliant and hold CSA and UL certifications. The Littelfuse 0312.187HXP carries additional CE certification.

Selection between these parts is based on:

• Supply availability: Littelfuse 0312.187HXP currently maintains 1,274 units in inventory versus 932 units for the Eaton BK/AGC-3/16-R
• Regulatory requirements: Applications requiring CE certification should specify 0312.187HXP
• Existing design documentation: Designs already qualified to either manufacturer's part number should maintain that specification unless supply constraints necessitate substitution
• Holder compatibility: Both parts require identical 3AB and 3AG holder formats with no modification to existing socket installations

Frequently Asked Questions (FAQ)

Q: Can the 0312.187HXP directly replace the BK/AGC-3/16-R in existing circuits?

A: Yes. Both parts share identical current rating (187 mA), voltage rating (250 V AC), response time (fast blow), package format (3AB, 3AG, 1/4" x 1-1/4"), breaking capacity (35 A), and operating temperature range (-55°C ~ 125°C). No circuit modifications or holder changes are required.

Q: What are the differences between these two parts?

A: The primary differences are manufacturer identity (Eaton versus Littelfuse), series designation (AGC versus 312), DC cold resistance (6.05 Ohms versus 3.42 Ohms), melting I²t (0.007 versus 0.0128), and certification scope (CSA/UL versus CE/CSA/UL). All electrical and mechanical performance parameters remain identical.

Q: Are there any temperature or environmental limitations that differ between these parts?

A: No. Both parts operate across the identical temperature range of -55°C to 125°C. Both are ROHS3 compliant and REACH unaffected.

Q: Do these fuses require any special holder or socket?

A: Yes. Both the BK/AGC-3/16-R and 0312.187HXP require a compatible 3AB or 3AG holder. The fuse cartridge format (1/4" x 1-1/4") is standardized across both parts and fits identically into existing holder installations.

Q: Which part should be selected for new designs?

A: Selection should be based on design requirements, existing supplier relationships, and regulatory certifications needed. For applications requiring CE certification, the Littelfuse 0312.187HXP is specified. For applications with existing Eaton qualification, the BK/AGC-3/16-R maintains design continuity.