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

Part Overview

The 5VT 5-R is a 5 A, 250 V AC/DC glass cartridge fuse manufactured by Bel Fuse Inc. in a 5mm x 20mm form factor with slow-blow response characteristics. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The fuse requires a holder for installation and is approved for multiple international standards including CCC, CE, CSA, cULus, SEMKO, and VDE.

Key Parameters

Parameter	Value
Current Rating	5 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 Range	-55°C ~ 125°C
Breaking Capacity @ Rated Voltage	50 A
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

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

Current Rating: 5 A (exact match required)
Voltage Rating (AC): 250 V (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 (minimum requirement)

All substitute parts listed below meet these mandatory criteria. Variations in breaking capacity, melting I²t, DC cold resistance, and approval agencies are permitted within the scope of substitution, provided the core electrical and mechanical parameters remain identical.

Parameter Comparison

Part Number	Manufacturer	Current (A)	Voltage (V AC)	Package	Response Time	Breaking Capacity (A)	Melting I²t	DC Cold Resistance (Ω)	Product Status
5VT 5-R	Bel Fuse Inc.	5	250	5mm x 20mm	Slow Blow	50	444	0.012	Obsolete
5ET 5-R	Bel Fuse Inc.	5	250	5mm x 20mm	Slow Blow	150	444	0.012	Active
5ST 5-R	Bel Fuse Inc.	5	250	5mm x 20mm	Slow Blow	50	95	0.011	Active
0213005.MXP	Littelfuse Inc.	5	250	5mm x 20mm	Slow Blow	50	314	0.0116	Active
0218005.HXP	Littelfuse Inc.	5	250	5mm x 20mm	Slow Blow	50	111	0.0104	Active
0218005.MXBP	Littelfuse Inc.	5	250	5mm x 20mm	Slow Blow	50	111	0.0104	Active
0218005.MXP	Littelfuse Inc.	5	250	5mm x 20mm	Slow Blow	50	111	0.0104	Active
0218005.TXP	Littelfuse Inc.	5	250	5mm x 20mm	Slow Blow	50	111	0.0104	Active
GDC-5A	Eaton - Electronics Division	5	250	5mm x 20mm	Slow Blow	50	142.5	0.00985	Active

Engineering Selection Recommendations

All listed substitute parts are active products with current manufacturing status, eliminating supply chain risk associated with the obsolete 5VT 5-R. Selection should prioritize parts with the broadest approval agency coverage for your target market:

Bel Fuse Inc. alternatives (5ET 5-R, 5ST 5-R): Maintain manufacturer continuity with approvals for CCC, CE, CSA, SEMKO, and VDE. The 5ET 5-R offers enhanced breaking capacity (150 A vs. 50 A), while the 5ST 5-R provides identical breaking capacity to the original.

Littelfuse Inc. alternatives (0213005.MXP, 0218005.HXP, 0218005.MXBP, 0218005.MXP, 0218005.TXP): Provide broad international compliance including BSI, CCC, CE, CSA, K-MARK, PSE, SEMKO, UL, and VDE. The 0218005 series offers high inventory availability (1,152 to 42,700 units), ensuring supply continuity.

Eaton alternative (GDC-5A): Approved for cURus, IMQ, and MITI/JET standards with lower DC cold resistance (0.00985 Ω), suitable for applications requiring minimal voltage drop.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different breaking capacity?

A: Yes. Breaking capacity variation is permitted provided all core electrical and mechanical parameters (current, voltage, package, response time) remain identical. Higher breaking capacity (such as 5ET 5-R at 150 A) offers enhanced protection margins without affecting circuit compatibility.

Q: What is the significance of melting I²t variation among substitutes?

A: Melting I²t defines the thermal energy required to melt the fuse element. Variations (ranging from 95 to 444 in this group) reflect different fuse element designs. All listed parts maintain the same 5 A current rating and slow-blow response, ensuring functional equivalence in standard applications. Application-specific thermal requirements should be verified against circuit design specifications.

Q: Are all substitute parts physically interchangeable?

A: Yes. All substitute parts share the identical 5mm x 20mm package and require the same holder type. Physical installation is directly interchangeable without mechanical modification.

Q: Which substitute offers the best international compliance coverage?

A: Littelfuse 0218005 series parts (HXP, MXBP, MXP, TXP) provide the broadest approval agency coverage, including UL, K-MARK, and PSE certifications in addition to CCC, CE, CSA, SEMKO, and VDE. This makes them optimal for multi-region applications.

Q: Is RoHS3 compliance maintained across all substitutes?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, maintaining environmental regulatory alignment with the original 5VT 5-R.

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