Littelfuse 0218015.H Glass Cartridge Fuse 15A 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 0218015.H is a 15A 250VAC slow-blow glass cartridge fuse in 5x20mm form factor, designed for circuit protection in AC/DC applications. This part carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing maintenance and production requirements for systems utilizing this fuse specification.

Key Parameters

Parameter	Value
Current Rating	15 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Response Time	Slow Blow
Package / Case	5mm x 20mm
Mounting Type	Requires Holder
Operating Temperature Range	-55°C ~ 125°C
Size / Dimension	0.205" Dia x 0.787" L (5.20mm x 20.00mm)

Substitute Part Grouping Explanation

Substitution eligibility for the 0218015.H is determined by strict equivalence across the following critical parameters:

Current Rating: 15 A (exact match required)
Voltage Rating (AC): 250 V (exact match required)
Fuse Type: Cartridge, Glass (exact match required)
Response Time: Slow Blow (exact match required)
Package / Case: 5mm x 20mm (exact match required)
Mounting Type: Requires Holder (exact match required)

All substitute parts listed below meet these core electrical and mechanical requirements. Variations in secondary parameters such as breaking capacity, melting I²t, DC cold resistance, and approval agencies are documented to support engineering selection based on specific application requirements and regional compliance needs.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Current Rating (A)	Voltage Rating (AC)	Response Time	Package / Case	Breaking Capacity @ Rated Voltage	Melting I²t	DC Cold Resistance (Ohms)	Product Status	RoHS Status
0218015.H	Littelfuse Inc.	15	250 V	Slow Blow	5mm x 20mm	150 A	1441	0.003	Obsolete	RoHS non-compliant
0218015.HXP	Littelfuse Inc.	15	250 V	Slow Blow	5mm x 20mm	100 A	1405	0.0028	Active	ROHS3 Compliant
0218015.MXBP	Littelfuse	15	250 V	Slow Blow	5mm x 20mm	100 A	1405	0.0028	Active	ROHS3 Compliant
0218015.MXP	Littelfuse Inc.	15	250 V	Slow Blow	5mm x 20mm	100 A	1405	0.0028	Active	ROHS3 Compliant
0218015.TXP	Littelfuse Inc.	15	250 V	Slow Blow	5mm x 20mm	100 A	1405	0.0028	Active	ROHS3 Compliant
0218015.VXP	Littelfuse Inc.	15	250 V	Slow Blow	5mm x 20mm	100 A	1405	0.0028	Active	ROHS3 Compliant
BK/S506-15-R	Eaton - Electronics Division	15	250 V	Slow Blow	5mm x 20mm	125 A	1091.7	0.004	Active	ROHS3 Compliant
BK1/S506-15-R	Eaton - Electronics Division	15	250 V	Slow Blow	5mm x 20mm	125 A	1091.7	0.004	Active	ROHS3 Compliant
TSC-15A	OptiFuse	15	250 V	Slow Blow	5mm x 20mm	100 A	690.3	—	Active	ROHS3 Compliant
TSD-15A	OptiFuse	15	250 V	Slow Blow	5mm x 20mm	35 A	1668	—	Active	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed are electrically and mechanically equivalent to the 0218015.H and are suitable for direct replacement in applications requiring a 15A 250VAC slow-blow glass cartridge fuse in 5x20mm form factor.

Littelfuse Series 218 Variants (0218015.HXP, 0218015.MXBP, 0218015.MXP, 0218015.TXP, 0218015.VXP): These parts maintain the same manufacturer lineage as the original 0218015.H and carry active product status with ROHS3 compliance. All variants support the same operating temperature range (-55°C ~ 125°C) and are available in bulk packaging. Approval agencies vary by variant; select based on regional certification requirements (CSA, PSE, UL, VDE, CE).

Eaton S506 Series (BK/S506-15-R, BK1/S506-15-R): These manufacturer-recommended alternatives from Eaton provide equivalent electrical performance with higher breaking capacity (125A) and are certified to cURus, PSE/JET, and UR standards. These parts are suitable for applications requiring broader international compliance coverage.

OptiFuse Alternatives (TSC-15A, TSD-15A): These parametric equivalents from OptiFuse meet the core electrical and mechanical specifications. The TSD-15A variant offers higher melting I²t (1668) compared to the original part, while the TSC-15A provides lower melting I²t (690.3). Selection between these variants depends on application-specific thermal response requirements. Both carry UL 248 or IEC 60127 approval.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the 0218015.H?

A: Yes. All listed substitute parts meet the core electrical and mechanical requirements: 15A current rating, 250V AC voltage rating, slow-blow response time, glass cartridge type, and 5x20mm form factor. Physical installation and electrical performance are equivalent.

Q: What is the difference between the Littelfuse variants (0218015.HXP, 0218015.MXP, 0218015.TXP, 0218015.VXP)?

A: These parts are electrically identical with matching current rating, voltage rating, response time, and package dimensions. Differences exist in approval agency certifications and packaging format. Select based on your regional compliance requirements and supply chain preferences.

Q: Why do some substitute parts have different breaking capacity or melting I²t values?

A: Breaking capacity and melting I²t are secondary electrical characteristics that vary by manufacturer design. All listed parts meet the primary substitution criteria (15A, 250V, slow-blow, 5x20mm). These secondary parameters may be relevant for specific application environments; consult your circuit design requirements to determine if variations are acceptable.

Q: Is the original 0218015.H still available?

A: The 0218015.H carries obsolete product status. Active alternatives from the same manufacturer (Littelfuse Series 218 variants) and cross-manufacturer equivalents (Eaton S506 series, OptiFuse TSC/TSD series) are available in production quantities.

Q: What compliance certifications should I consider when selecting a substitute?

A: The original 0218015.H carries CSA and UL approval. Substitute parts support various certification combinations including CSA, UL, VDE, PSE, CE, cURus, and IEC 60127. Select a part matching your regional and application-specific compliance requirements.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed carry ROHS3 compliance status. The original 0218015.H is RoHS non-compliant. If RoHS compliance is a design requirement, any of the listed active alternatives satisfy this criterion.

Q: Can I mix different substitute part numbers in the same circuit or system?

A: Yes. All substitute parts are electrically and mechanically equivalent and can be used interchangeably. However, for consistency in maintenance and inventory management, standardizing on a single part number is recommended.

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