Littelfuse 0313010.H Glass Cartridge Fuse 10A 32VAC Equivalent & Substitute Parts

Part Overview

The Littelfuse 0313010.H is a 10 A, 32 V AC/DC slow-blow glass cartridge fuse in the 3AB/3AG form factor (1/4" × 1-1/4"). This part is classified as obsolete. Equivalent and substitute parts are available from Littelfuse and Eaton Electronics Division, all meeting the same electrical and mechanical specifications for direct circuit protection applications requiring 10 A rated current at 32 V AC/DC with slow-blow response characteristics.

Key Parameters

Parameter	Value
Current Rating	10 A
Voltage Rating (AC)	32 V
Fuse Type	Cartridge, Glass
Response Time	Slow Blow
Package / Case	3AB, 3AG, 1/4" × 1-1/4"
Mounting Type	Requires Holder
Breaking Capacity @ Rated Voltage	300 A (Littelfuse); 1 kA (Eaton)
Size / Dimension	0.250" Dia × 1.250" L (6.35 mm × 31.75 mm)

Substitute Part Grouping Explanation

Substitution is determined by matching the following core electrical and mechanical parameters:

Current Rating: 10 A
Voltage Rating (AC): 32 V
Fuse Type: Cartridge, Glass
Response Time: Slow Blow
Package / Case: 3AB, 3AG, 1/4" × 1-1/4"
Mounting Type: Requires Holder

All substitute parts listed maintain these specifications. Variations in breaking capacity, DC cold resistance, and compliance certifications do not affect functional substitutability for standard circuit protection applications.

Parameter Comparison

Part Number	Manufacturer	Current (A)	Voltage AC (V)	Response Time	Breaking Capacity	DC Cold Resistance (Ω)	Product Status	RoHS Status
0313010.H	Littelfuse Inc.	10	32	Slow Blow	300 A	0.0082	Obsolete	Non-compliant
0313010.HXP	Littelfuse Inc.	10	32	Slow Blow	300 A	0.0083	Active	ROHS3 Compliant
0313010.HXIDP	Littelfuse Inc.	10	32	Slow Blow	300 A	0.0083	Active	ROHS3 Compliant
0313010.MXP	Littelfuse Inc.	10	32	Slow Blow	300 A	0.0083	Active	ROHS3 Compliant
0313010.VXIDP	Littelfuse Inc.	10	32	Slow Blow	300 A	0.0083	Active	ROHS3 Compliant
0313010.VXP	Littelfuse Inc.	10	32	Slow Blow	300 A	0.0083	Active	ROHS3 Compliant
BK/MDL-10-R	Eaton - Electronics Division	10	32	Slow Blow	1 kA	0.01	Active	ROHS3 Compliant
BK/MDQ-10	Eaton - Electronics Division	10	32	Slow Blow	1 kA	0.0072	Active	Non-compliant
MDL-10-R	Eaton - Electronics Division	10	32	Slow Blow	1 kA	0.01	Active	RoHS Compliant
MDQ-10	Eaton - Electronics Division	10	32	Slow Blow	1 kA	0.0072	Active	Not Applicable

Engineering Selection Recommendations

Littelfuse Series 313 (0313010.HXP, 0313010.HXIDP, 0313010.MXP, 0313010.VXIDP, 0313010.VXP): All variants are active production parts with ROHS3 compliance. These are direct manufacturer equivalents with identical electrical characteristics and are the primary substitutes for the obsolete 0313010.H. Selection among these variants depends on packaging requirements and specific certification needs (CE, CSA, PSE, UL).

Eaton MDL and MDQ Series (BK/MDL-10-R, MDL-10-R, BK/MDQ-10, MDQ-10): These parts provide higher breaking capacity (1 kA versus 300 A) and are suitable for applications requiring enhanced fault protection. MDL-10-R offers RoHS compliance; MDQ variants do not. All Eaton parts are active production items.

For new designs or replacement in RoHS-regulated applications, Littelfuse ROHS3-compliant variants are preferred. For applications with higher fault current requirements, Eaton MDL series provides superior breaking capacity.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the 0313010.H?

A: Yes. All listed parts maintain the same current rating (10 A), voltage rating (32 V AC), response time (slow blow), and physical form factor (3AB/3AG, 1/4" × 1-1/4"). They are mechanically and electrically compatible for direct substitution in standard circuit protection applications.

Q: What is the difference between Littelfuse and Eaton fuses in this list?

A: Both manufacturers produce functionally equivalent 10 A, 32 V slow-blow cartridge fuses. Eaton parts feature higher breaking capacity (1 kA versus 300 A). Selection depends on application fault current requirements and preferred supplier.

Q: Why do some parts have different DC cold resistance values?

A: DC cold resistance variations (0.0072 Ω to 0.01 Ω) reflect manufacturing tolerances and design differences between manufacturers. These variations do not affect substitutability for standard 10 A, 32 V AC/DC applications.

Q: Are all substitute parts RoHS compliant?

A: No. Littelfuse ROHS3-compliant variants (0313010.HXP, 0313010.HXIDP, 0313010.MXP, 0313010.VXIDP, 0313010.VXP) and Eaton MDL-10-R and MDL series are RoHS compliant. Eaton MDQ variants and the original 0313010.H are not RoHS compliant. Compliance requirements should guide selection for regulated applications.

Q: What certifications do these parts carry?

A: Littelfuse parts carry UL approval; some variants (0313010.VXIDP, 0313010.VXP) include CE, CSA, and PSE certifications. Eaton MDL parts carry CE, CSA, and UL; MDQ parts carry CSA and UL. Verify specific certification requirements for your application.

Q: Can I use a fuse with higher breaking capacity as a substitute?

A: Yes. Eaton parts with 1 kA breaking capacity are suitable replacements for applications originally designed for 300 A breaking capacity. Higher breaking capacity provides enhanced protection in fault conditions and does not compromise circuit operation.

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