Equivalent & Substitute Parts for 5VT 2 Glass Cartridge Fuse

Part Overview

The Bel Fuse Inc. 5VT 2 is a 2A 250VAC glass cartridge fuse with 5mm x 20mm dimensions, designed for applications requiring slow-blow response characteristics. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new designs. The 5VT 2 requires a dedicated fuse holder for installation and operates across a temperature range of -55°C to 125°C.

Key Parameters

Parameter	Value
Current Rating	2 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Package / Case	5mm x 20mm
Response Time	Slow Blow
Mounting Type	Requires Holder
Operating Temperature	-55°C ~ 125°C

Substitute Part Grouping Explanation

Substitution eligibility for the 5VT 2 is determined by strict alignment of the following parameters:

Current Rating: 2 A (exact match required)
Voltage Rating: 250 V AC (exact match required)
Fuse Type: Cartridge, Glass (exact match required)
Package / Case: 5mm x 20mm (exact match required)
Response Time: Slow Blow (exact match required)
Mounting Type: Requires Holder (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)

All substitute parts listed below meet these core electrical and mechanical parameters. Variations in secondary parameters such as breaking capacity, melting I²t, DC cold resistance, and approval agencies do not disqualify substitution but may affect performance characteristics in specific applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Current Rating	Voltage Rating (AC)	Package / Case	Response Time	Breaking Capacity @ Rated Voltage	Melting I²t	DC Cold Resistance (Ohms)	Product Status	RoHS Status
5VT 2	Bel Fuse Inc.	2 A	250 V	5mm x 20mm	Slow Blow	35 A	92	0.04	Obsolete	RoHS non-compliant
5ET 2-R	Bel Fuse Inc.	2 A	250 V	5mm x 20mm	Slow Blow	150 A	92	0.043	Active	ROHS3 Compliant
5ST 2-R	Bel Fuse Inc.	2 A	250 V	5mm x 20mm	Slow Blow	35 A	12	0.03	Active	ROHS3 Compliant
5TT 2-R	Bel Fuse Inc.	2 A	250 V	5mm x 20mm	Slow Blow	100 A	29.9	0.08	Active	ROHS3 Compliant
0213002.MXP	Littelfuse Inc.	2 A	250 V	5mm x 20mm	Slow Blow	35 A	92.705	0.0452	Active	ROHS3 Compliant
0218002.HXP	Littelfuse Inc.	2 A	250 V	5mm x 20mm	Slow Blow	35 A	14.45	0.0293	Active	ROHS3 Compliant
0218002.MXBP	Littelfuse Inc.	2 A	250 V	5mm x 20mm	Slow Blow	35 A	14.45	0.0293	Active	ROHS3 Compliant
0218002.MXP	Littelfuse Inc.	2 A	250 V	5mm x 20mm	Slow Blow	35 A	14.45	0.0293	Active	ROHS3 Compliant
0218002.TXP	Littelfuse Inc.	2 A	250 V	5mm x 20mm	Slow Blow	35 A	14.45	0.0293	Active	ROHS3 Compliant
0219002.MXAP	Littelfuse Inc.	2 A	250 V	5mm x 20mm	Slow Blow	150 A	92.705	0.0452	Active	ROHS3 Compliant
0239002.HXP	Littelfuse Inc.	2 A	250 V	5mm x 20mm	Slow Blow	100 A	50.585	0.0943	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are active products with current manufacturing status, providing long-term availability compared to the obsolete 5VT 2. The Bel Fuse Inc. series (5ET 2-R, 5ST 2-R, 5TT 2-R) maintains manufacturer continuity and are ROHS3 compliant. The Littelfuse Inc. alternatives (0213002.MXP, 0218002 series, 0219002.MXAP, 0239002.HXP) offer equivalent electrical performance with expanded approval agency certifications including CCC, KC, and K-MARK, providing broader regulatory coverage for international applications.

For applications requiring RoHS3 compliance, all substitute parts listed meet this requirement, whereas the original 5VT 2 does not. Breaking capacity variations (35A to 150A) and melting I²t differences reflect design variations within the slow-blow cartridge fuse category but do not affect basic substitution eligibility when core electrical parameters match.

Frequently Asked Questions (FAQ)

Q: Can I directly replace a 5VT 2 with any of the listed substitute parts?

A: Yes, all listed parts are direct substitutes based on matching current rating (2A), voltage rating (250V AC), fuse type (cartridge glass), package dimensions (5mm x 20mm), response time (slow blow), and operating temperature range (-55°C to 125°C). Physical installation requires the same holder type.

Q: What is the difference between Bel Fuse Inc. and Littelfuse Inc. substitutes?

A: Both manufacturers produce functionally equivalent 2A 250V slow-blow glass cartridge fuses in 5mm x 20mm packages. Littelfuse parts offer broader international approval certifications. Bel Fuse maintains the original manufacturer lineage. Selection depends on supply chain preference and specific regulatory requirements.

Q: Why do some substitute parts have different breaking capacities?

A: Breaking capacity indicates the maximum fault current the fuse can safely interrupt. While the 5VT 2 has 35A breaking capacity, alternatives range from 35A to 150A. This variation does not affect substitution eligibility for the specified 2A rated current but may provide enhanced performance in high-fault-current environments.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts are ROHS3 compliant. The original 5VT 2 is RoHS non-compliant. For applications requiring RoHS compliance, any substitute part listed is suitable.

Q: Does package dimension variation affect compatibility?

A: All substitute parts maintain the 5mm x 20mm package specification. Minor dimensional variations (such as 0.201" to 0.205" diameter) are within standard tolerance and do not affect holder compatibility or mechanical fit.

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