Littelfuse 0218002.HXP Glass Cartridge Fuse 2A 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 0218002.HXP is a 2 A, 250 V AC/DC slow-blow glass cartridge fuse in 5mm x 20mm package format. This component requires a fuse holder for installation and is classified as Active product status. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, and thermal characteristics that ensure functional interchangeability within the specified operating parameters.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

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

All substitute parts listed meet these core electrical and mechanical requirements. Variations in Breaking Capacity, Melting I²t, DC Cold Resistance, and approval agency certifications do not affect functional substitution within the specified electrical parameters.

Parameter Comparison

Part Number	Manufacturer	Series	Current (A)	Voltage (V AC)	Response Time	Package	Breaking Capacity (A)	Melting I²t	DC Cold Resistance (Ω)	Inventory (Pcs)
0218002.HXP	Littelfuse Inc.	218	2	250	Slow Blow	5x20mm	35	14.45	0.0293	696
0218002.MXP	Littelfuse Inc.	218	2	250	Slow Blow	5x20mm	35	14.45	0.0293	9616
0218002.TXP	Littelfuse Inc.	218	2	250	Slow Blow	5x20mm	35	14.45	0.0293	1032
0213002.MXP	Littelfuse Inc.	213	2	250	Slow Blow	5x20mm	35	92.705	0.0452	17911
0213002.TXP	Littelfuse Inc.	213	2	250	Slow Blow	5x20mm	35	92.705	0.0452	1142
0219002.MXABP	Littelfuse Inc.	219XA	2	250	Slow Blow	5x20mm	150	92.705	0.0452	1970
0219002.MXAP	Littelfuse Inc.	219XA	2	250	Slow Blow	5x20mm	150	92.705	0.0452	1160
0239002.HXP	Littelfuse Inc.	239	2	250	Slow Blow	5x20mm	100	50.585	0.0943	2400
0239002.MXP	Littelfuse Inc.	239	2	250	Slow Blow	5x20mm	100	50.585	0.0943	1610
0239002.TXP	Littelfuse Inc.	239	2	250	Slow Blow	5x20mm	100	50.585	0.0943	719
0239002.VXP	Littelfuse Inc.	239	2	250	Slow Blow	5x20mm	100	50.585	0.0943	931

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and are ROHS3 compliant. Selection among equivalent parts should be based on:

Series 218 (0218002.MXP, 0218002.TXP): Direct equivalents with identical electrical and thermal characteristics to the primary part 0218002.HXP. These parts share the same Melting I²t value (14.45) and DC Cold Resistance (0.0293 Ω), providing identical thermal response profiles.

Series 213 (0213002.MXP, 0213002.TXP): Parametric equivalents with matching current, voltage, and package specifications. These parts feature higher Melting I²t (92.705) and increased DC Cold Resistance (0.0452 Ω), resulting in slower thermal response compared to Series 218.

Series 219XA (0219002.MXABP, 0219002.MXAP): Parametric equivalents with elevated Breaking Capacity (150 A) and thermal characteristics matching Series 213. These parts provide enhanced fault current handling capability.

Series 239 (0239002.HXP, 0239002.MXP, 0239002.TXP, 0239002.VXP): Parametric equivalents with Breaking Capacity of 100 A and the highest DC Cold Resistance (0.0943 Ω) among all listed substitutes, resulting in the slowest thermal response profile.

Approval agency certifications vary across series. The primary part 0218002.HXP includes K-MARK certification; Series 213 includes BSI and UR certifications; Series 239 excludes K-MARK and PSE certifications. Application-specific regulatory requirements should determine final part selection.

Frequently Asked Questions (FAQ)

Q: Can Series 218, 213, 219XA, and 239 fuses be used interchangeably?

A: All listed parts share identical current rating (2 A), voltage rating (250 V AC), response time (Slow Blow), and package dimensions (5x20mm). They are electrically and mechanically interchangeable within these specified parameters. Differences in Melting I²t and Breaking Capacity do not affect substitution eligibility for applications requiring 2 A, 250 V protection.

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

A: Melting I²t determines the thermal energy required to melt the fuse element. Series 218 parts (14.45) respond faster than Series 213 and 219XA parts (92.705), which respond faster than Series 239 parts (50.585). All maintain Slow Blow response classification and are suitable for circuits designed for 2 A, 250 V slow-blow protection.

Q: Does Breaking Capacity affect substitution compatibility?

A: Breaking Capacity indicates the maximum fault current the fuse can safely interrupt. Series 218 (35 A), Series 213 (35 A), Series 219XA (150 A), and Series 239 (100 A) all safely interrupt fault currents within their rated capacities. Selection should align with the circuit's maximum available fault current.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed parts are ROHS3 compliant and suitable for applications requiring RoHS compliance.

Q: How do packaging variants (HXP, MXP, TXP, VXP) differ?

A: Packaging designations indicate different tape and reel configurations or bulk packaging formats. All variants within a series maintain identical electrical and thermal characteristics. Selection depends on procurement and assembly requirements.

Q: Which substitute part offers the highest inventory availability?

A: Part 0213002.MXP (Series 213) has the highest inventory at 17,911 pieces, followed by 0218002.MXP (Series 218) at 9,616 pieces.

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