Littelfuse 0213.400TXP Glass Cartridge Fuse 400mA 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 0213.400TXP is a 400mA slow-blow glass cartridge fuse rated for 250V AC/DC operation in a 5x20mm form factor. This component is designed for circuit protection in industrial and commercial applications requiring reliable overcurrent protection with slow-blow response characteristics. The part maintains active product status with full RoHS3 compliance and multiple international safety certifications including BSI, CCC, CE, CSA, SEMKO, UR, and VDE. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, response time classification, and approval agency certifications to ensure direct functional interchangeability in circuit protection applications.

Key Parameters

Parameter	Value
Current Rating	400 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 ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 0213.400TXP is determined by strict equivalence across the following parameters: current rating (400mA), AC voltage rating (250V), fuse type (cartridge glass), mechanical package (5x20mm), response time classification (slow-blow), and mounting requirement (requires holder). Parts are grouped into two categories:

Parametric Equivalents (Littelfuse Series 213, 218, 219XA, and 239): These parts share identical electrical ratings, mechanical dimensions, and response time characteristics. Differences exist in breaking capacity, melting I²t values, and approval agency certifications, which do not affect functional interchangeability in standard circuit protection applications.

Manufacturer Recommended Equivalents (SCHURTER and Bel Fuse): These parts from alternative manufacturers meet the core electrical and mechanical requirements. Variations in breaking capacity, melting I²t, DC cold resistance, and approval certifications are documented to support informed selection based on specific application requirements.

Parameter Comparison

Part Number	Manufacturer	Current Rating (mA)	Voltage AC (V)	Response Time	Package	Breaking Capacity @ Rated Voltage (A)	Melting I²t	DC Cold Resistance (Ohms)	Operating Temperature (°C)
0213.400TXP	Littelfuse Inc.	400	250	Slow Blow	5x20mm	35	1.36	0.535	-55 ~ 125
0213.400MXP	Littelfuse	400	250	Slow Blow	5x20mm	35	1.36	0.535	-55 ~ 125
0218.400HXP	Littelfuse Inc.	400	250	Slow Blow	5x20mm	35	1.325	0.535	-55 ~ 125
0218.400MXP	Littelfuse Inc.	400	250	Slow Blow	5x20mm	35	1.325	0.535	-55 ~ 125
0219.400MXAP	Littelfuse Inc.	400	250	Slow Blow	5x20mm	150	1.4	0.535	-55 ~ 125
0239.400HXP	Littelfuse Inc.	400	250	Slow Blow	5x20mm	35	1.49	1.475	-55 ~ 125
0239.400MXP	Littelfuse Inc.	400	250	Slow Blow	5x20mm	35	1.49	1.475	-55 ~ 125
0034.2512	SCHURTER Inc.	400	250	Medium Blow	5x20mm	80	0.632	Not Specified	-40 ~ 85
0034.3770	SCHURTER Inc.	400	250	Slow Blow	5x20mm	35	0.337	Not Specified	-40 ~ 85
5ST 400-R	Bel Fuse Inc.	400	250	Slow Blow	5x20mm	35	0.81	0.72	-55 ~ 125
5TT 400-R	Bel Fuse Inc.	400	250	Slow Blow	5x20mm	100	1.65	1.45	-55 ~ 125

Engineering Selection Recommendations

Direct Substitutes (Littelfuse Series 213, 218, 239): The 0213.400MXP, 0218.400HXP, 0218.400MXP, 0239.400HXP, and 0239.400MXP maintain full electrical and mechanical equivalence to the 0213.400TXP. All parts carry active product status and RoHS3 compliance. Selection among these parts is based on approval agency requirements: the 0213.400TXP includes BSI, CCC, CE, CSA, SEMKO, UR, and VDE certifications, while Series 218 and 239 parts carry subsets of these certifications. The 0219.400MXAP offers elevated breaking capacity (150A versus 35A) while maintaining all other electrical parameters, suitable for applications requiring higher fault current withstand capability.

Alternative Manufacturer Options: The SCHURTER 0034.3770 provides slow-blow response matching the 0213.400TXP with cULus certification and identical breaking capacity. The SCHURTER 0034.2512 operates with medium-blow response and reduced operating temperature range (-40°C to 85°C), requiring application-specific evaluation. The Bel Fuse 5ST 400-R and 5TT 400-R both maintain slow-blow characteristics with extended temperature range (-55°C to 125°C) and broad certification coverage (CCC, CE, CSA, cURus, IMQ, SEMKO, VDE for 5ST; CE, CSA, cULus for 5TT). The 5TT 400-R provides elevated breaking capacity (100A) comparable to the 0219.400MXAP.

Frequently Asked Questions (FAQ)

Q: Can the 0213.400MXP directly replace the 0213.400TXP? A: Yes. Both parts share identical current rating (400mA), voltage rating (250V AC), response time (slow-blow), and mechanical package (5x20mm). Electrical performance and circuit protection characteristics are equivalent.

Q: What is the difference between the 0218 and 0239 series substitutes? A: Series 218 and 239 parts maintain identical electrical ratings and mechanical dimensions. Differences include melting I²t values (1.325 for Series 218 versus 1.49 for Series 239) and DC cold resistance (0.535 Ohms for Series 218 versus 1.475 Ohms for Series 239). Approval agency certifications also differ. Selection depends on specific application requirements and regional compliance mandates.

Q: Why does the 0219.400MXAP have a higher breaking capacity (150A)? A: The 0219.400MXAP is designed for applications requiring higher fault current withstand capability while maintaining the same 400mA trip current and 250V rating. This part is suitable for circuits with elevated short-circuit fault levels.

Q: Is the SCHURTER 0034.2512 a suitable substitute? A: The 0034.2512 matches current and voltage ratings but operates with medium-blow response rather than slow-blow. This difference in response time may affect circuit protection timing. Additionally, the operating temperature range is reduced (-40°C to 85°C versus -55°C to 125°C). Application-specific evaluation is required before substitution.

Q: What are the advantages of Bel Fuse 5ST 400-R and 5TT 400-R options? A: Both Bel Fuse parts maintain the full -55°C to 125°C operating temperature range and carry comprehensive international certifications (CCC, CE, CSA, cURus, IMQ, SEMKO, VDE for 5ST). The 5ST 400-R provides direct electrical equivalence with 35A breaking capacity. The 5TT 400-R offers elevated breaking capacity (100A) for high fault-current applications. Both are suitable for direct substitution based on application requirements.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts carry RoHS3 compliance status, meeting environmental and hazardous substance restrictions for electronic components.

Q: Does the 5x20mm mechanical package ensure physical interchangeability? A: Yes. All listed parts share the 5x20mm cartridge form factor and require a standard fuse holder. Physical installation is interchangeable across all listed parts.

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