SFE-30 Equivalent & Substitute Parts Reference

Part Overview

The SFE-30 is a 30 A fast-blow glass cartridge fuse rated for 32 V DC operation, manufactured by Eaton - Electronics Division. This component requires an external holder for installation and is classified as a non-standard cartridge package. The part maintains active product status with 767 units in current inventory stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the critical parameters: current rating, voltage rating, response time, fuse type, package configuration, and physical dimensions. Alternative sources become necessary due to supply chain considerations, inventory availability, or specific compliance requirements.

Key Parameters

Parameter	Value
Current Rating	30 A
Voltage Rating - DC	32 V
Fuse Type	Cartridge, Glass
Response Time	Fast Blow
Package / Case	Cartridge, Non-Standard
Size / Dimension	0.250" Dia x 1.437" L (6.35mm x 36.50mm)
Mounting Type	Requires Holder
Series	SFE

Substitute Part Grouping Explanation

Substitution eligibility for the SFE-30 cartridge fuse is determined by strict equivalence across the following parameters:

Mandatory Matching Parameters:

Current Rating: 30 A
Voltage Rating - DC: 32 V
Fuse Type: Cartridge, Glass
Response Time: Fast Blow
Physical Dimensions: 0.250" Dia x 1.437" L (6.35mm x 36.50mm)
Mounting Type: Requires Holder
Package Configuration: Cartridge, Non-Standard

Two substitute parts meet these criteria: BK/SFE-30 (Eaton - Electronics Division) and 0SFE030.V (Littelfuse Inc.). Both maintain identical electrical ratings and mechanical form factors, enabling direct functional replacement within applications designed for the SFE-30.

Parameter Comparison

Parameter	SFE-30	BK/SFE-30	0SFE030.V
Manufacturer	Eaton - Electronics Division	Eaton - Electronics Division	Littelfuse Inc.
Current Rating (Amps)	30 A	30 A	30 A
Voltage Rating - DC	32 V	32 V	32 V
Voltage Rating - AC	Not specified	Not specified	32 V
Fuse Type	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass
Response Time	Fast Blow	Fast Blow	Fast Blow
Package / Case	Cartridge, Non-Standard	Cartridge, Non-Standard	Cartridge, Non-Standard
Size / Dimension	0.250" Dia x 1.437" L (6.35mm x 36.50mm)	0.250" Dia x 1.437" L (6.35mm x 36.50mm)	0.250" Dia x 1.437" L (6.35mm x 36.50mm)
Mounting Type	Requires Holder	Requires Holder	Requires Holder
Series	SFE	SFE	SFE
Product Status	Active	Active	Active
Approval Agency	UL	UL	Not specified
RoHS Status	Not specified	RoHS non-compliant	ROHS3 Compliant
Inventory (Pcs)	767	1151	1362

Engineering Selection Recommendations

SFE-30 (Eaton - Electronics Division): Primary specification part with UL approval agency certification and active product status. Suitable for applications requiring documented UL compliance.

BK/SFE-30 (Eaton - Electronics Division): Parametric equivalent with identical electrical and mechanical specifications. Maintains UL approval and active status. RoHS non-compliant designation applies. Higher inventory availability (1151 units) compared to primary part.

0SFE030.V (Littelfuse Inc.): Parametric equivalent with identical electrical and mechanical specifications. Provides ROHS3 compliance for applications with RoHS requirements. AC voltage rating of 32 V is additionally specified. Highest inventory availability (1362 units). Approval agency not specified in documentation.

Selection between these three parts depends on compliance requirements: UL certification preference, RoHS compliance mandate, or inventory availability constraints. All three maintain functional equivalence for DC 32 V, 30 A fast-blow cartridge fuse applications.

Frequently Asked Questions (FAQ)

Q: Can BK/SFE-30 replace SFE-30 in all applications?

A: BK/SFE-30 maintains identical electrical ratings (30 A, 32 V DC), response time (fast blow), and physical dimensions (0.250" Dia x 1.437" L). Both require external holder mounting. Functional replacement is supported. RoHS compliance status differs; verify application requirements.

Q: What is the difference between SFE-30 and 0SFE030.V?

A: Both parts share identical DC voltage rating (32 V), current rating (30 A), response time (fast blow), and physical dimensions. 0SFE030.V additionally specifies 32 V AC rating. 0SFE030.V is ROHS3 compliant; SFE-30 compliance status is not specified. Approval agency documentation differs.

Q: Are all three parts mechanically interchangeable?

A: Yes. All three parts share identical physical dimensions (0.250" Dia x 1.437" L / 6.35mm x 36.50mm) and require the same holder cartridge mounting type. Mechanical installation is identical.

Q: Which part should be selected for RoHS-compliant applications?

A: 0SFE030.V carries ROHS3 compliant designation. SFE-30 and BK/SFE-30 do not specify RoHS3 compliance; BK/SFE-30 is explicitly RoHS non-compliant.

Q: Does approval agency certification differ between parts?

A: SFE-30 and BK/SFE-30 both carry UL approval. 0SFE030.V does not specify approval agency in provided documentation.

Q: What inventory considerations apply to these substitutes?

A: Current stock levels are SFE-30 (767 units), BK/SFE-30 (1151 units), and 0SFE030.V (1362 units). 0SFE030.V maintains highest availability.

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