BK8/ABC-10-R Equivalent & Substitute Parts

Part Overview

The BK8/ABC-10-R is a 10 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation. This component is classified as obsolete and requires a fuse holder for installation. The fuse features fast-blow response characteristics with a 3AB, 3AG form factor measuring 0.250" diameter by 1.250" length. Due to its obsolete product status, equivalent substitute parts from active product lines are available to maintain circuit protection functionality in existing and new designs.

Substiute Parts

BK8/ABC-10-R

Eaton - Electronics DivisionIn Stock: 975BK8/ABC-10-R Datasheet

Current PartRFQ

ABC-10-R

Eaton - Electronics DivisionIn Stock: 1001ABC-10-R Datasheet

Parametric EquivalentRFQ

BK/ABC-10-R

Eaton - Electronics DivisionIn Stock: 3162BK/ABC-10-R Datasheet

Parametric EquivalentRFQ

BK/ABC-B-10

Eaton - Electronics DivisionIn Stock: 914BK/ABC-B-10 Datasheet

Parametric EquivalentRFQ

BK/GBB-10-R

Eaton - Electronics DivisionIn Stock: 1164BK/GBB-10-R Datasheet

Parametric EquivalentRFQ

BK1/ABC-10DX-R

Eaton - Electronics DivisionIn Stock: 760BK1/ABC-10DX-R Datasheet

Parametric EquivalentRFQ

GBB-10-R

Eaton - Electronics DivisionIn Stock: 1096GBB-10-R Datasheet

Parametric EquivalentRFQ

0314010.HXP

Littelfuse Inc.In Stock: 16880314010.HXP Datasheet

Parametric EquivalentRFQ

0314010.MXANP

Littelfuse Inc.In Stock: 17610314010.MXANP Datasheet

Parametric EquivalentRFQ

0314010.MXP

Littelfuse Inc.In Stock: 59000314010.MXP Datasheet

Parametric EquivalentRFQ

0314010.VXP

Littelfuse Inc.In Stock: 10960314010.VXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK8/ABC-10-R is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Current Rating: 10 A (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Voltage Rating - DC: 125 V (exact match required)
• Fuse Type: Cartridge, Ceramic (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)
• Mounting Type: Requires Holder (exact match required)

All substitute parts listed maintain identical electrical ratings and physical dimensions. Variations in DC Cold Resistance, Melting I²t, Breaking Capacity specifications, and approval agencies are noted but do not preclude substitution when the primary criteria are met. Parts are grouped by manufacturer: Eaton - Electronics Division (ABC and GBB series) and Littelfuse Inc. (314 series).

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation - Eaton ABC Series: ABC-10-R and BK/ABC-10-R are direct active-status equivalents from Eaton - Electronics Division. Both maintain identical electrical specifications, physical dimensions, and ROHS3 compliance. These parts are preferred for applications requiring continuity with the original BK8/ABC-10-R design and approval certifications (CSA, UL).

Alternative - Eaton GBB Series: BK/GBB-10-R and GBB-10-R provide equivalent electrical and mechanical performance with ROHS3 compliance. The GBB series features lower DC cold resistance (0.00934 Ohms versus 0.011 Ohms) and maintains CSA and UR approvals. These parts are suitable for applications where the GBB series certification is acceptable.

Secondary Alternative - Littelfuse 314 Series: 0314010.HXP, 0314010.MXANP, 0314010.MXP, and 0314010.VXP provide equivalent electrical and mechanical performance with extended operating temperature range (-55°C to 125°C). The Littelfuse 314 series features higher breaking capacity (750A AC versus 200A AC) and broader approval certifications (CE, CSA, K-MARK, PSE, UL). These parts are suitable for applications requiring enhanced thermal performance or expanded regulatory compliance.

Non-Recommended: BK/ABC-B-10 is not recommended for new designs due to RoHS non-compliance, although it maintains electrical and mechanical equivalence.

Frequently Asked Questions (FAQ)

Q: Can I substitute BK8/ABC-10-R with ABC-10-R? A: Yes. ABC-10-R is a direct parametric equivalent with identical current rating (10 A), voltage ratings (250 V AC, 125 V DC), fuse type (ceramic cartridge), response time (fast blow), and physical dimensions (0.250" x 1.250"). ABC-10-R is active status, whereas BK8/ABC-10-R is obsolete.

Q: What is the difference between Eaton ABC and GBB series fuses? A: Both series meet the primary substitution criteria for the BK8/ABC-10-R. The GBB series exhibits lower DC cold resistance (0.00934 Ohms) compared to ABC series (0.011 Ohms). Approval agencies differ: ABC series carries CSA and UL certifications, while GBB series carries CSA and UR certifications.

Q: Can I use Littelfuse 314 series fuses as a substitute? A: Yes. The Littelfuse 314 series (0314010.HXP, 0314010.MXANP, 0314010.MXP, 0314010.VXP) meets all primary substitution criteria. These parts offer higher breaking capacity (750A AC) and extended operating temperature range (-55°C to 125°C). Approval certifications include CE, CSA, K-MARK, PSE, and UL.

Q: Are all substitute parts ROHS3 compliant? A: All recommended substitute parts are ROHS3 compliant except BK/ABC-B-10, which is RoHS non-compliant and not recommended for new designs.

Q: Do all substitute parts fit the same holder? A: Yes. All substitute parts maintain the identical 3AB, 3AG form factor with dimensions of 0.250" diameter by 1.250" length. All parts require a compatible fuse holder for installation.

Q: What is the significance of Melting I²t values? A: Melting I²t indicates the thermal energy required to melt the fuse element. The BK8/ABC-10-R specifies 208.8. Eaton ABC series parts maintain 208.8, while Littelfuse 314 series specifies 206. These values are within acceptable tolerance for fast-blow ceramic cartridge fuses and do not preclude substitution.

Q: Which substitute part has the lowest inventory risk? A: 0314010.MXP (Littelfuse) has the highest inventory level at 5,887 pieces. BK/ABC-10-R (Eaton) has 3,104 pieces. Both parts are active status with substantial stock availability.

Q: Can I mix different substitute parts in the same circuit? A: All substitute parts are parametrically equivalent and can be used interchangeably within the same circuit. However, consistency in part selection within a single assembly is recommended for traceability and maintenance purposes.