Littelfuse 0213004.M Glass Cartridge Fuse 4A 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 0213004.M is a 4A 250VAC glass cartridge fuse with slow-blow response characteristics, designed for 5x20mm holder mounting. This part carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain circuit protection functionality in applications where the original part is no longer available or when design flexibility is required for procurement optimization.

Key Parameters

Parameter	Value
Current Rating	4 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Response Time	Slow Blow
Package / Case	5mm x 20mm
Mounting Type	Requires Holder
Breaking Capacity @ Rated Voltage	40A
Operating Temperature Range	-55°C ~ 125°C

Substitute Part Grouping Explanation

Substitution eligibility for the 0213004.M is determined by strict equivalence across the following critical parameters:

Current Rating: 4 A (exact match required)
Voltage Rating: 250 V AC (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 melting I²t, DC cold resistance, breaking capacity, and approval agency certifications are noted but do not disqualify substitution eligibility when primary parameters align.

Parameter Comparison

Part Number	Manufacturer	Series	Current (A)	Voltage (V AC)	Response	Package	Breaking Capacity (A)	Melting I²t	DC Resistance (Ω)	Product Status	RoHS Status
0213004.M	Littelfuse Inc.	213	4	250	Slow Blow	5x20mm	40	226.505	0.017	Obsolete	Non-compliant
0213004.MXBP	Littelfuse Inc.	213	4	250	Slow Blow	5x20mm	40	226.505	0.017	Active	ROHS3 Compliant
0213004.MXP	Littelfuse Inc.	213	4	250	Slow Blow	5x20mm	40	226.505	0.017	Active	ROHS3 Compliant
0213004.TXP	Littelfuse Inc.	213	4	250	Slow Blow	5x20mm	40	226.505	0.017	Active	ROHS3 Compliant
0218004.HXP	Littelfuse Inc.	218	4	250	Slow Blow	5x20mm	40	69.1	0.0129	Active	ROHS3 Compliant
0218004.MXBP	Littelfuse Inc.	218	4	250	Slow Blow	5x20mm	40	69.1	0.0129	Active	ROHS3 Compliant
0218004.MXF11P	Littelfuse Inc.	218	4	250	Slow Blow	5x20mm	40	69.1	0.0129	Active	ROHS3 Compliant
0218004.MXP	Littelfuse Inc.	218	4	250	Slow Blow	5x20mm	40	69.1	0.0129	Active	ROHS3 Compliant
0218004.TXP	Littelfuse Inc.	218	4	250	Slow Blow	5x20mm	40	69.1	0.0129	Active	ROHS3 Compliant
0218004.VXP	Littelfuse Inc.	218	4	250	Slow Blow	5x20mm	40	69.1	0.0129	Active	ROHS3 Compliant
0219004.MXABP	Littelfuse Inc.	219XA	4	250	Slow Blow	5x20mm	150	330	0.0158	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain electrical and mechanical compatibility with the 0213004.M across primary selection criteria. The following factors should guide component selection:

Series 213 Substitutes (0213004.MXBP, 0213004.MXP, 0213004.TXP): These parts preserve identical melting I²t and DC cold resistance characteristics of the original 0213004.M while offering active product status and ROHS3 compliance. These represent the closest functional equivalents.

Series 218 Substitutes (0218004.HXP, 0218004.MXBP, 0218004.MXF11P, 0218004.MXP, 0218004.TXP, 0218004.VXP): These parts maintain all primary electrical and mechanical parameters but feature reduced melting I²t (69.1 versus 226.505) and lower DC cold resistance (0.0129 Ohms versus 0.017 Ohms). All carry active product status and ROHS3 compliance with expanded certification coverage including UL and K-MARK.

Series 219XA Substitute (0219004.MXABP): This part maintains primary electrical and mechanical parameters but features increased breaking capacity (150A versus 40A), elevated melting I²t (330 versus 226.505), and higher DC cold resistance (0.0158 Ohms versus 0.017 Ohms). Active product status and ROHS3 compliance are confirmed.

Frequently Asked Questions (FAQ)

Q: Can Series 218 fuses replace Series 213 fuses in the same application?

A: Series 218 and Series 213 fuses are electrically and mechanically compatible when current rating, voltage, response time, and package dimensions match. The primary difference lies in melting I²t and DC cold resistance values. Application-specific thermal and electrical characteristics must be evaluated to determine suitability.

Q: What is the significance of melting I²t in fuse selection?

A: Melting I²t defines the thermal energy required to melt the fuse element. Lower melting I²t values result in faster response to overcurrent conditions. Series 218 fuses exhibit lower melting I²t compared to Series 213, affecting trip time characteristics under fault conditions.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed carry ROHS3 compliance status. The original 0213004.M is marked as RoHS non-compliant due to its obsolete status. Compliance requirements for your application should be confirmed before final part selection.

Q: Does packaging format affect substitution eligibility?

A: All substitute parts are available in bulk packaging. The 0213004.M original part was supplied in standard packaging. Bulk packaging does not affect electrical or mechanical compatibility; only procurement and handling procedures differ.

Q: What approval agencies certify these fuse parts?

A: Series 213 parts carry certifications from BSI, CCC, CE, CSA, PSE, SEMKO, UR, and VDE. Series 218 parts include additional certifications: UL and K-MARK. Series 219XA includes UL certification. Application-specific regulatory requirements should determine which certifications are necessary.

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