Equivalent & Substitute Parts for Littelfuse 0218005.MXE

Part Overview

The Littelfuse 0218005.MXE is a 5A 250VAC glass cartridge fuse with 5mm x 20mm axial through-hole mounting. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design and procurement requirements. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts offer compatible functionality within the same application category.

Key Parameters

Parameter	Specification
Current Rating	5 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Package / Case	5mm x 20mm (Axial)
Response Time	Slow Blow
Mounting Type	Through Hole
Breaking Capacity @ Rated Voltage	50A
Operating Temperature Range	-55°C ~ 125°C

Substitute Part Grouping Explanation

Substitution eligibility 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 (Axial) (exact match required)
Response Time: Slow Blow (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)

All identified substitute parts meet these core electrical and mechanical parameters. Variations in Breaking Capacity, Melting I²t, DC Cold Resistance, and approval certifications do not preclude substitution within the specified parameter set.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Current Rating (A)	Voltage Rating (V AC)	Fuse Type	Package / Case	Response Time	Breaking Capacity @ Rated Voltage (A)	Melting I²t	DC Cold Resistance (Ohms)	Product Status	RoHS Status
0218005.MXE	Littelfuse Inc.	5	250	Cartridge, Glass	5mm x 20mm (Axial)	Slow Blow	50	114	0.01	Obsolete	RoHS non-compliant
0213005.MXEP	Littelfuse Inc.	5	250	Cartridge, Glass	5mm x 20mm (Axial)	Slow Blow	50	314	0.0116	Active	ROHS3 Compliant
0218005.MXEP	Littelfuse Inc.	5	250	Cartridge, Glass	5mm x 20mm (Axial)	Slow Blow	50	111	0.0104	Active	ROHS3 Compliant
0219005.MXAEP	Littelfuse Inc.	5	250	Cartridge, Glass	5mm x 20mm (Axial)	Slow Blow	150	544	0.0117	Active	ROHS3 Compliant
0034.3124.PT	SCHURTER Inc.	5	250	Cartridge, Glass	5mm x 20mm (Axial)	Slow Blow	50	102	—	Active	ROHS3 Compliant
5STP 5-R	Bel Fuse Inc.	5	250	Cartridge, Glass	5mm x 20mm (Axial)	Slow Blow	50	95	0.011	Active	ROHS3 Compliant
BK/S506-V-5-R	Eaton - Electronics Division	5	250	Cartridge, Glass	5mm x 20mm (Axial)	Slow Blow	50	142.5	0.00985	Active	ROHS3 Compliant

Engineering Selection Recommendations

All identified substitute parts are classified as Active products, ensuring ongoing availability and support. The original part 0218005.MXE is obsolete and RoHS non-compliant.

For direct replacement with minimal design impact, 0218005.MXEP (Littelfuse Inc., Active, ROHS3 Compliant) provides the closest electrical match with identical Melting I²t specification of 111 compared to the original 114.

For applications requiring enhanced regulatory compliance and broader certification coverage, 0213005.MXEP (Littelfuse Inc., Active, ROHS3 Compliant) offers equivalent electrical performance with expanded approval agency certifications including CCC, CE, CSA, PSE, SEMKO, UR, and VDE.

For applications with higher breaking capacity requirements, 0219005.MXAEP (Littelfuse Inc., Active, ROHS3 Compliant) provides 150A breaking capacity versus the standard 50A, with ROHS3 compliance and comprehensive international certifications.

Cross-manufacturer alternatives include 0034.3124.PT (SCHURTER Inc.), 5STP 5-R (Bel Fuse Inc.), and BK/S506-V-5-R (Eaton - Electronics Division), all meeting core electrical and mechanical specifications with ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can 0218005.MXEP directly replace 0218005.MXE?

A: Yes. Both parts share identical electrical ratings (5A, 250VAC), fuse type (Cartridge, Glass), package dimensions (5mm x 20mm Axial), response time (Slow Blow), and operating temperature range (-55°C ~ 125°C). The primary difference is product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the significance of the Melting I²t variation across substitute parts?

A: Melting I²t represents the thermal energy required to melt the fuse element. Variations (ranging from 95 to 544 in the substitute list) indicate different internal fuse element designs. All listed parts maintain the same current rating and response time classification, ensuring functional compatibility within the specified electrical parameters.

Q: Are there mechanical compatibility concerns with cross-manufacturer substitutes?

A: Physical dimensions vary slightly across manufacturers. The original part specifies 0.228" Dia x 0.886" L (5.80mm x 22.50mm). SCHURTER 0034.3124.PT measures 0.213" Dia x 0.886" L (5.40mm x 22.50mm), Bel Fuse 5STP 5-R measures 0.217" Dia x 0.827" L (5.50mm x 21.00mm), and Eaton BK/S506-V-5-R measures 0.218" Dia x 0.831" L (5.54mm x 21.10mm). These dimensional variations remain within standard 5mm x 20mm cartridge fuse tolerances and are compatible with standard through-hole fuse holders.

Q: Which substitute offers the broadest international certification coverage?

A: 0219005.MXAEP (Littelfuse Inc.) carries certifications from CCC, CE, CSA, PSE, SEMKO, UL, and VDE. BK/S506-V-5-R (Eaton) provides certifications from BSI, CCC, CSA, CURUS, IMQ, PSE/JET, SEMKO, and VDE.

Q: Is RoHS3 compliance mandatory for substitution?

A: RoHS3 compliance is not a substitution requirement based on core electrical and mechanical parameters. However, all active substitute parts listed are ROHS3 compliant, reflecting current manufacturing standards.

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