Equivalent & Substitute Parts for 5VT 2-R Glass Cartridge Fuse

Part Overview

The Bel Fuse Inc. 5VT 2-R is a 2A 250VAC glass cartridge fuse in 5mm x 20mm form factor, designed for circuit protection in AC/DC applications. This part is classified as obsolete, making equivalent substitutes necessary for ongoing system maintenance and new designs. The fuse features slow-blow response characteristics and is approved by multiple international standards bodies including CCC, CE, CSA, cULus, SEMKO, and VDE.

Key Parameters

Parameter	Value
Current Rating	2 A
Voltage Rating (AC)	250 V
Package / Case	5mm x 20mm
Fuse Type	Cartridge, Glass
Response Time	Slow Blow
Mounting Type	Requires Holder
Breaking Capacity @ Rated Voltage	35A
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the 5VT 2-R is determined by strict equivalence across the following critical parameters:

Current Rating: 2 A (exact match required)
Voltage Rating: 250 V AC (exact match required)
Package / Case: 5mm x 20mm (exact match required)
Fuse Type: Cartridge, Glass (exact match required)
Response Time: Slow Blow (exact match required)
Mounting Type: Requires Holder (exact match required)

Parts meeting all these criteria are classified as direct substitutes. Parts with variations in response time (Medium Blow) or breaking capacity are classified as similar substitutes and require application-specific evaluation.

Parameter Comparison

Part Number	Manufacturer	Current (A)	Voltage (V AC)	Package	Response Time	Breaking Capacity (A)	Melting I²t	Product Status
5VT 2-R	Bel Fuse Inc.	2	250	5x20mm	Slow Blow	35	92	Obsolete
0213002.MXP	Littelfuse Inc.	2	250	5x20mm	Slow Blow	35	92.705	Active
0218002.HXP	Littelfuse Inc.	2	250	5x20mm	Slow Blow	35	14.45	Active
0218002.MXBP	Littelfuse Inc.	2	250	5x20mm	Slow Blow	35	14.45	Active
0218002.MXP	Littelfuse Inc.	2	250	5x20mm	Slow Blow	35	14.45	Active
0218002.TXP	Littelfuse Inc.	2	250	5x20mm	Slow Blow	35	14.45	Active
0219002.MXAP	Littelfuse Inc.	2	250	5x20mm	Slow Blow	150	92.705	Active
0239002.HXP	Littelfuse Inc.	2	250	5x20mm	Slow Blow	100	50.585	Active
BK1/GMC-2-R	Eaton - Electronics Division	2	250	5x20mm	Medium Blow	100	8.9	Active
BK1/GMD-2-R	Eaton - Electronics Division	2	250	5x20mm	Slow Blow	100	42	Active
GDC-2A	Eaton - Electronics Division	2	250	5x20mm	Slow Blow	35	31.6	Active

Engineering Selection Recommendations

Direct Substitutes (Slow Blow, 35A Breaking Capacity):

The Littelfuse 0213002.MXP provides the closest electrical match with melting I²t of 92.705, nearly identical to the original 5VT 2-R specification of 92. This part is active in production and carries comprehensive international approvals including BSI, CCC, CE, CSA, PSE, SEMKO, UR, and VDE.

The Eaton GDC-2A is an active alternative with identical response time and breaking capacity. It carries approvals from cURus, IMQ, and MITI/JET, with melting I²t of 31.6.

Alternative Substitutes (Slow Blow, Higher Breaking Capacity):

The Littelfuse 0219002.MXAP and 0239002.HXP offer higher breaking capacities (150A and 100A respectively) while maintaining slow-blow response. These are suitable for applications requiring enhanced fault current protection. The 0219002.MXAP matches the original melting I²t specification at 92.705.

The Eaton BK1/GMD-2-R provides 100A breaking capacity with slow-blow response and melting I²t of 42, suitable for circuits requiring higher fault current ratings.

Not Recommended:

The Eaton BK1/GMC-2-R features medium-blow response, which differs from the original slow-blow characteristic and is not suitable as a direct replacement.

The Littelfuse 218 series (0218002.HXP, 0218002.MXBP, 0218002.MXP, 0218002.TXP) all exhibit significantly lower melting I²t values (14.45) compared to the original specification (92), indicating faster response times and reduced thermal capacity. These parts are not recommended for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can I use a fuse with a higher breaking capacity than the original 5VT 2-R?

A: Yes, provided all other parameters match. A fuse with higher breaking capacity (such as 100A or 150A) will provide equal or better protection in the same circuit. The breaking capacity indicates the maximum fault current the fuse can safely interrupt. Higher values do not affect normal operation.

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

A: Melting I²t determines the thermal energy required to melt the fuse element. It directly affects response time and thermal characteristics. The original 5VT 2-R has a melting I²t of 92. Substitutes with significantly different values (such as 14.45) will exhibit different thermal response and are not suitable for direct replacement unless the application specifically requires altered response characteristics.

Q: Are all listed substitutes compatible with the same fuse holder?

A: Yes. All listed parts maintain the 5mm x 20mm package dimension and require a standard cartridge fuse holder. Physical compatibility is guaranteed across all substitutes.

Q: Why is the 5VT 2-R classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Active substitutes from Littelfuse and Eaton are available to fulfill the same circuit protection function in new designs and maintenance applications.

Q: What certifications should I verify for my specific application?

A: Verify that the selected substitute carries the required certifications for your market and application. The original 5VT 2-R carries CCC, CE, CSA, cULus, SEMKO, and VDE approvals. Most active substitutes carry overlapping certifications, though specific approvals vary by part number and manufacturer.

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