GMA-5A Equivalent & Substitute Parts Reference

Part Overview

The GMA-5A is a 5 A 125 V AC DC fast-blow glass cartridge fuse in 5mm x 20mm form factor manufactured by Eaton - Electronics Division. This fuse cartridge requires a compatible holder for installation and is designed for general-purpose circuit protection applications. The part is active in production with 1094 pieces currently in stock. Substitute parts are identified based on matching electrical ratings, mechanical dimensions, response characteristics, and approval certifications to ensure direct functional equivalence in circuit protection applications.

Substiute Parts

GMA-5A

Eaton - Electronics DivisionIn Stock: 1142GMA-5A Datasheet

Current PartRFQ

GMA-5-R

Eaton - Electronics DivisionIn Stock: 1092GMA-5-R Datasheet

DirectRFQ

0235005.HXP

Littelfuse Inc.In Stock: 200460235005.HXP Datasheet

Parametric EquivalentRFQ

0235005.MXP

Littelfuse Inc.In Stock: 33910235005.MXP Datasheet

Parametric EquivalentRFQ

0235005.VXP

Littelfuse Inc.In Stock: 10650235005.VXP Datasheet

Parametric EquivalentRFQ

BP/GMA-5A

Eaton - Bussmann Electrical DivisionIn Stock: 985BP/GMA-5A Datasheet

Parametric EquivalentRFQ

COM-09772

SparkFun ElectronicsIn Stock: 759COM-09772 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GMA-5A are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Current Rating: 5 A
• Voltage Rating - AC: 125 V
• Response Time: Fast Blow
• Breaking Capacity @ Rated Voltage: 10kA

Mechanical Parameters (Must Match):

• Package / Case: 5mm x 20mm
• Mounting Type: Requires Holder
• Fuse Type: Cartridge, Glass

Compliance Parameters (Must Be Present):

• RoHS3 Compliant status
• Active product status
• Approval certifications from recognized agencies (UL, CSA, PSE, CE, KC)

All substitute parts listed maintain identical electrical and mechanical specifications to the GMA-5A, ensuring direct interchangeability in circuit protection applications without modification to holder or circuit design.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Eaton Manufacturer Family):

GMA-5-R is the direct Eaton equivalent to GMA-5A, sharing identical electrical characteristics, mechanical dimensions, and DC cold resistance specifications. Both parts carry CSA, PSE, and UL approvals. Selection between GMA-5A and GMA-5-R depends on packaging requirements and inventory availability.

Secondary Substitutes (Littelfuse 235 Series):

0235005.HXP, 0235005.MXP, and 0235005.VXP are parametric equivalents from Littelfuse Inc. All three parts maintain identical current rating, voltage rating, response time, and breaking capacity. These parts feature expanded operating temperature range (-55°C to 125°C) and broader approval certifications (CE, CSA, KC, PSE, UL). DC cold resistance is slightly lower (0.0184 Ohms versus 0.021 Ohms), and melting I²t values are marginally reduced (27.41 versus 29). These differences remain within acceptable tolerance for general-purpose circuit protection applications.

Tertiary Substitute (Eaton Bussmann Division):

BP/GMA-5A is manufactured by Eaton - Bussmann Electrical Division and maintains matching electrical and mechanical specifications. Breaking capacity and DC cold resistance specifications are not provided for this variant. RoHS compliance is confirmed without specific version designation.

Tertiary Substitute (SparkFun Electronics):

COM-09772 is a SparkFun Electronics distribution of a 5A 125V fast-blow glass cartridge fuse. Electrical and mechanical parameters match the GMA-5A exactly, including DC cold resistance (0.021 Ohms) and melting I²t (29). Approval certifications include CCC, CSA, and UL.

All listed substitutes are active products with confirmed inventory availability and RoHS compliance status.

Frequently Asked Questions (FAQ)

Q: Can GMA-5-R be used as a direct replacement for GMA-5A?

A: Yes. GMA-5-R is manufactured by the same company (Eaton - Electronics Division) and shares identical electrical ratings (5 A, 125 V AC), response time (Fast Blow), mechanical dimensions (5mm x 20mm), and DC cold resistance (0.021 Ohms). Both require the same holder type and carry equivalent approval certifications.

Q: What is the difference between Littelfuse 0235005.HXP, 0235005.MXP, and 0235005.VXP?

A: All three Littelfuse parts share identical electrical specifications (5 A, 125 V, Fast Blow, 10kA breaking capacity) and mechanical dimensions (5mm x 20mm). The primary differences are in approval certifications: 0235005.HXP and 0235005.MXP carry CE, CSA, KC, PSE, and UL approvals, while 0235005.VXP carries CE, CSA, K-MARK, PSE, and UL approvals. All three feature operating temperature range of -55°C to 125°C and identical DC cold resistance (0.0184 Ohms).

Q: Are there differences in DC cold resistance between GMA-5A and Littelfuse substitutes?

A: Yes. GMA-5A and GMA-5-R have DC cold resistance of 0.021 Ohms, while Littelfuse parts (0235005.HXP, 0235005.MXP, 0235005.VXP) have DC cold resistance of 0.0184 Ohms. This difference is within acceptable tolerance for circuit protection applications and does not affect interchangeability in standard holder installations.

Q: Do all substitute parts require the same holder as GMA-5A?

A: Yes. All substitute parts are classified as Cartridge, Glass fuses with 5mm x 20mm dimensions and Requires Holder mounting type. They are mechanically compatible with any holder designed for 5mm x 20mm glass cartridge fuses.

Q: What approval certifications are common across all substitutes?

A: CSA, PSE, and UL certifications are present across all listed substitutes. Additional certifications vary by manufacturer: Littelfuse parts include CE and KC (or K-MARK) approvals; SparkFun COM-09772 includes CCC approval; BP/GMA-5A does not specify breaking capacity or approval certifications.

Q: Can I use COM-09772 from SparkFun as a substitute?

A: Yes. COM-09772 maintains identical electrical specifications (5 A, 125 V, Fast Blow), mechanical dimensions (5mm x 20mm), DC cold resistance (0.021 Ohms), and melting I²t (29) as the GMA-5A. It carries CSA and UL approvals and is RoHS3 compliant.

Q: Which substitute has the highest inventory availability?

A: 0235005.HXP from Littelfuse Inc. has the highest inventory with 20006 pieces in stock, followed by 0235005.MXP with 3306 pieces. GMA-5A has 1094 pieces, GMA-5-R has 1032 pieces, COM-09772 has 733 pieces, and BP/GMA-5A has 916 pieces.