Littelfuse 0213.400M Equivalent & Substitute Parts

Part Overview

The Littelfuse 0213.400M is a 400 mA, 250 V AC/DC glass cartridge fuse with a 5mm x 20mm form factor, designed for applications requiring slow-blow response characteristics. This part operates across a temperature range of -55°C to 125°C and is rated for a 35A breaking capacity at rated voltage. The 0213.400M carries an obsolete product status, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and procurement.

Key Parameters

Parameter	Value
Current Rating	400 mA
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 ~ 125°C
DC Cold Resistance	0.535 Ohms
Breaking Capacity @ Rated Voltage	35A

Substitute Part Grouping Explanation

Substitution of the 0213.400M is determined by strict equivalence across the following critical parameters: current rating (400 mA), voltage rating (250 V AC), response time (Slow Blow), package dimensions (5mm x 20mm), fuse type (Cartridge, Glass), and operating temperature range (-55°C to 125°C). All substitute parts listed maintain these core electrical and mechanical specifications. Differences in series designation (213, 218, 219XA), breaking capacity, melting I²t values, and approval agency certifications do not preclude functional substitution when the primary parameters remain constant. Parts are grouped by product status and RoHS compliance to facilitate procurement decisions.

Parameter Comparison

Part Number	Series	Current Rating	Voltage Rating (AC)	Response Time	Package	Breaking Capacity @ Rated Voltage	Melting I²t	Product Status	RoHS Status
0213.400M	213	400 mA	250 V	Slow Blow	5mm x 20mm	35A	1.36	Obsolete	RoHS non-compliant
0213.400MXBP	213	400 mA	250 V	Slow Blow	5mm x 20mm	35A	1.36	Active	ROHS3 Compliant
0213.400MXP	213	400 mA	250 V	Slow Blow	5mm x 20mm	35A	1.36	Active	ROHS3 Compliant
0213.400TXP	213	400 mA	250 V	Slow Blow	5mm x 20mm	35A	1.36	Active	ROHS3 Compliant
0218.400HXP	218	400 mA	250 V	Slow Blow	5mm x 20mm	35A	1.325	Active	ROHS3 Compliant
0218.400MXBP	218	400 mA	250 V	Slow Blow	5mm x 20mm	35A	1.325	Active	ROHS3 Compliant
0218.400MXP	218	400 mA	250 V	Slow Blow	5mm x 20mm	35A	1.325	Active	ROHS3 Compliant
0218.400TXP	218	400 mA	250 V	Slow Blow	5mm x 20mm	35A	1.325	Active	ROHS3 Compliant
0218.400VXP	218	400 mA	250 V	Slow Blow	5mm x 20mm	35A	1.325	Active	ROHS3 Compliant
0219.400MXABP	219XA	400 mA	250 V	Slow Blow	5mm x 20mm	150A	1.4	Active	ROHS3 Compliant
0219.400MXAP	219XA	400 mA	250 V	Slow Blow	5mm x 20mm	150A	1.4	Active	ROHS3 Compliant

Engineering Selection Recommendations

For applications currently using the obsolete 0213.400M, direct substitution is available within the active 213 series: 0213.400MXBP, 0213.400MXP, and 0213.400TXP maintain identical electrical specifications and breaking capacity while offering ROHS3 compliance. These parts are preferred for new designs and legacy system replacements requiring minimal qualification effort.

The 218 series alternatives (0218.400HXP, 0218.400MXBP, 0218.400MXP, 0218.400TXP, 0218.400VXP) provide functional equivalence with a marginally lower melting I²t value (1.325 versus 1.36) and expanded approval agency certifications including UL and K-MARK. These parts are suitable for applications where additional regulatory compliance is required.

The 219XA series (0219.400MXABP, 0219.400MXAP) offers the same electrical ratings with an elevated breaking capacity of 150A and higher melting I²t (1.4), providing enhanced performance margins for high-fault-current environments. These parts carry UL certification and are appropriate for applications demanding superior fault protection characteristics.

All substitute parts are ROHS3 compliant and carry active product status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the 0213.400M be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts maintain the critical electrical parameters: 400 mA current rating, 250 V AC voltage rating, slow-blow response, and 5mm x 20mm package dimensions. Direct mechanical and electrical substitution is supported.

Q: What is the difference between the 213, 218, and 219XA series?

A: The series designation reflects internal design variations. The 213 series matches the original 0213.400M specifications exactly. The 218 series provides equivalent electrical performance with different approval agency certifications. The 219XA series offers higher breaking capacity (150A versus 35A) and increased melting I²t, suitable for applications with higher fault current requirements.

Q: Are there differences in approval certifications between substitute parts?

A: Yes. The 213 series includes BSI, CCC, CE, CSA, SEMKO, UR, and VDE certifications. The 218 series includes CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE certifications. The 219XA series includes CCC, CE, CSA, SEMKO, and UL certifications. Selection should align with application-specific regulatory requirements.

Q: What does the packaging designation (MXBP, MXP, TXP, HXP, VXP) indicate?

A: Packaging designations reflect distribution format and tape/reel configurations. MXBP and MXP indicate bulk packaging suitable for high-volume procurement. TXP, HXP, and VXP represent alternative packaging formats. All variants maintain identical electrical and mechanical specifications.

Q: Is RoHS compliance a factor in substitution decisions?

A: The original 0213.400M is RoHS non-compliant. All active substitute parts are ROHS3 compliant, meeting current environmental and regulatory standards. For new designs and systems subject to RoHS requirements, any of the listed active parts are appropriate selections.

Q: Can the 219XA series parts be used in applications originally designed for the 0213.400M?

A: Yes. The 219XA series maintains all primary electrical specifications (400 mA, 250 V, slow-blow, 5mm x 20mm). The higher breaking capacity (150A) and melting I²t (1.4) represent performance enhancements that do not compromise compatibility with existing holder designs or circuit protection requirements.

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