Littelfuse 0218.800H Equivalent & Substitute Parts

Part Overview

The Littelfuse 0218.800H is an 800 mA, 250 V AC/DC glass cartridge fuse with a 5mm x 20mm form factor and slow-blow response time. This part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for direct substitution in existing applications.

Key Parameters

Parameter	Value
Current Rating	800 mA
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 to 125°C
Breaking Capacity @ Rated Voltage	35 A

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: current rating (800 mA), voltage rating (250 V AC), fuse type (cartridge glass), package dimensions (5mm x 20mm), response time (slow blow), and mounting requirement (requires holder). All substitute parts listed maintain these core electrical and mechanical specifications.

The substitute parts are grouped into two categories based on breaking capacity and melting I²t characteristics:

Category A (35 A Breaking Capacity): 0213.800MXBP, 0213.800MXP, 0213.800TXP, 0218.800HXP, 0218.800MXBP, 0218.800MXP, 0218.800TXP, 0218.800VXP

Category B (150 A Breaking Capacity): 0219.800MXABP, 0219.800MXAP

Parameter Comparison

Part Number	Series	Status	Current (mA)	Voltage (V AC)	Package	Response	Breaking Capacity (A)	Melting I²t	DC Cold Resistance (Ω)	RoHS Status	Inventory (Pcs)
0218.800H	218	Obsolete	800	250	5x20mm	Slow Blow	35	1.99	0.073	Non-compliant	925
0213.800MXBP	213	Active	800	250	5x20mm	Slow Blow	35	9.42	0.1635	ROHS3 Compliant	637
0213.800MXP	213	Active	800	250	5x20mm	Slow Blow	35	9.42	0.1635	ROHS3 Compliant	1762
0213.800TXP	213	Active	800	250	5x20mm	Slow Blow	35	9.42	0.1635	ROHS3 Compliant	1039
0218.800HXP	218	Active	800	250	5x20mm	Slow Blow	35	3.37	0.0813	ROHS3 Compliant	762
0218.800MXBP	218	Active	800	250	5x20mm	Slow Blow	35	3.37	0.0813	ROHS3 Compliant	1115
0218.800MXP	218	Active	800	250	5x20mm	Slow Blow	35	3.37	0.0813	ROHS3 Compliant	6600
0218.800TXP	218	Active	800	250	5x20mm	Slow Blow	35	3.37	0.0813	ROHS3 Compliant	1088
0218.800VXP	218	Active	800	250	5x20mm	Slow Blow	35	3.37	0.0813	ROHS3 Compliant	1037
0219.800MXABP	219XA	Active	800	250	5x20mm	Slow Blow	150	9.35	0.1635	ROHS3 Compliant	1064
0219.800MXAP	219XA	Active	800	250	5x20mm	Slow Blow	150	9.35	0.1635	ROHS3 Compliant	6288

Engineering Selection Recommendations

All listed substitute parts are active products with ROHS3 compliance, addressing the non-compliant status of the obsolete 0218.800H. Selection between substitutes depends on application-specific requirements:

For 35 A Breaking Capacity Applications: Series 213 (0213.800MXBP, 0213.800MXP, 0213.800TXP) and Series 218 (0218.800HXP, 0218.800MXBP, 0218.800MXP, 0218.800TXP, 0218.800VXP) maintain the original breaking capacity specification. Series 218 variants exhibit lower DC cold resistance (0.0813 Ω) compared to Series 213 variants (0.1635 Ω) and the original part (0.073 Ω). Series 213 variants provide higher melting I²t values (9.42) relative to Series 218 variants (3.37).

For 150 A Breaking Capacity Applications: Series 219XA parts (0219.800MXABP, 0219.800MXAP) provide enhanced breaking capacity while maintaining all other electrical and mechanical parameters. These parts are suitable for applications requiring higher fault current handling.

Regulatory Compliance: All active substitutes carry expanded approval agency certifications including CCC, CE, CSA, SEMKO, UL, and VDE, with Series 218 and 219XA variants including K-MARK certification.

Inventory Availability: 0218.800MXP (6600 Pcs) and 0219.800MXAP (6288 Pcs) offer the highest stock levels.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the 0218.800H with any of the listed substitutes?

A: Yes. All substitute parts maintain identical current rating (800 mA), voltage rating (250 V AC), fuse type (cartridge glass), package dimensions (5mm x 20mm), response time (slow blow), and mounting requirement (requires holder). Direct mechanical and electrical compatibility is confirmed.

Q: What is the difference between Series 213 and Series 218 substitutes?

A: Both series maintain the 35 A breaking capacity specification. Series 213 variants exhibit higher melting I²t (9.42 vs. 3.37) and higher DC cold resistance (0.1635 Ω vs. 0.0813 Ω). Series 218 variants more closely match the original part's DC cold resistance characteristic (0.073 Ω original vs. 0.0813 Ω Series 218).

Q: When should I use the 0219.800MXABP or 0219.800MXAP instead of other substitutes?

A: Use Series 219XA parts when your application requires 150 A breaking capacity instead of 35 A. These parts maintain all other electrical and mechanical specifications while providing enhanced fault current handling capability.

Q: Are all substitutes RoHS compliant?

A: Yes. All active substitute parts are ROHS3 compliant, whereas the original 0218.800H is RoHS non-compliant.

Q: Do all substitutes require the same holder as the original part?

A: Yes. All substitute parts maintain the 5mm x 20mm package specification and require a compatible fuse holder. No mechanical modifications are necessary.

Q: What approval agencies certify these substitute parts?

A: All substitutes carry certifications from BSI, CCC, CE, CSA, SEMKO, UL, and VDE. Series 218 and 219XA variants include additional K-MARK certification.

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