Equivalent & Substitute Parts for AGC-14-R Glass Cartridge Fuse

Part Overview

The AGC-14-R is a 14 A, 32 V AC/DC fast-blow glass cartridge fuse manufactured by Eaton - Electronics Division. This component is classified as Active product status and is designed for applications requiring overcurrent protection in low-voltage circuits. The fuse operates within a temperature range of -55°C to 125°C and is housed in a 3AB/3AG package format measuring 0.250" diameter by 1.250" length (6.35mm x 31.75mm). Identification of equivalent substitute parts becomes necessary when the primary part number is unavailable or when alternative sourcing is required while maintaining electrical and mechanical compatibility.

Substiute Parts

AGC-14-R

Eaton - Electronics DivisionIn Stock: 866AGC-14-R Datasheet

Current PartRFQ

BK/AGC-14-R

Eaton - Electronics DivisionIn Stock: 1033BK/AGC-14-R Datasheet

DirectRFQ

0312.250HXP

Littelfuse Inc.In Stock: 30250312.250HXP Datasheet

SimilarRFQ

0312.250VXP

Littelfuse Inc.In Stock: 11210312.250VXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AGC-14-R are classified based on strict electrical and mechanical parameter alignment. The primary substitution criterion is direct equivalence, defined by matching current rating (14 A), voltage rating (32 V AC), fuse type (cartridge glass), response time (fast blow), and physical package dimensions (3AB/3AG, 0.250" x 1.250").

The part BK/AGC-14-R qualifies as a direct substitute because it maintains identical electrical specifications, package format, and mechanical dimensions. This part is manufactured by the same supplier (Eaton - Electronics Division) and carries equivalent certifications (CSA, UL).

The parts 0312.250HXP and 0312.250VXP are classified as similar parts but do not qualify as direct substitutes. These Littelfuse Inc. components differ significantly in current rating (250 mA versus 14 A) and voltage rating (250 V versus 32 V), resulting in fundamentally different electrical characteristics and application suitability. These parts are included in the reference data but are not interchangeable with AGC-14-R in circuits designed for 14 A, 32 V protection.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitute: BK/AGC-14-R is the only direct substitute for AGC-14-R. Both parts are manufactured by Eaton - Electronics Division and maintain identical electrical ratings (14 A, 32 V), response characteristics (fast blow), and physical dimensions (3AB/3AG package). Both parts carry CSA and UL certifications and operate across the same temperature range (-55°C to 125°C). The BK/AGC-14-R variant carries ROHS3 compliance status compared to the base RoHS compliance of AGC-14-R. Selection between these two parts depends on specific RoHS compliance requirements of the end application.

Non-Interchangeable Parts: The Littelfuse 0312.250HXP and 0312.250VXP components are not suitable substitutes for AGC-14-R applications. These parts operate at fundamentally different electrical parameters (250 mA at 250 V versus 14 A at 32 V) and possess different thermal characteristics (melting I²t of 0.0355 versus 776.16). Although these parts share the same physical package format and glass cartridge construction, their electrical specifications make them unsuitable for circuits designed around 14 A, 32 V protection requirements.

Frequently Asked Questions (FAQ)

Q: Can BK/AGC-14-R be used as a direct replacement for AGC-14-R?

A: Yes. BK/AGC-14-R is a direct substitute. Both parts are manufactured by Eaton - Electronics Division and maintain identical current rating (14 A), voltage rating (32 V AC), fuse type (cartridge glass), response time (fast blow), and package dimensions (3AB/3AG, 0.250" x 1.250"). Both parts carry CSA and UL certifications.

Q: Why are 0312.250HXP and 0312.250VXP listed if they cannot substitute AGC-14-R?

A: These Littelfuse parts are included in the reference data because they share the same physical package format (3AB/3AG) and glass cartridge construction. However, they are electrically incompatible due to different current ratings (250 mA versus 14 A) and voltage ratings (250 V versus 32 V). They are provided for reference only to prevent accidental selection of incorrect parts based on package similarity alone.

Q: What is the significance of the melting I²t value in fuse selection?

A: The melting I²t value (776.16 for AGC-14-R versus 0.0355 for the Littelfuse parts) indicates the thermal energy required to melt the fuse element. This parameter directly affects the fuse's response time and protection characteristics. Substituting a fuse with a significantly different I²t value will alter circuit protection behavior and is not permissible.

Q: Are there differences in RoHS compliance between AGC-14-R and BK/AGC-14-R?

A: AGC-14-R carries RoHS Compliant status, while BK/AGC-14-R carries ROHS3 Compliant status. Both designations indicate compliance with hazardous substance restrictions. The selection between these variants should be based on specific regulatory requirements of the end application or customer specifications.

Q: What certifications apply to these fuse components?

A: AGC-14-R and BK/AGC-14-R carry CSA and UL certifications. The Littelfuse parts (0312.250HXP and 0312.250VXP) carry CE, CSA, and UL certifications. Certification requirements should be verified against specific application standards and regional regulations.

Q: Can AGC-14-R be used in applications requiring 250 V operation?

A: No. AGC-14-R is rated for 32 V AC operation. Using this component in 250 V circuits exceeds its voltage rating and creates a safety hazard. The Littelfuse 0312.250HXP or 0312.250VXP are rated for 250 V but have different current ratings (250 mA) and are not interchangeable for 14 A applications.