Littelfuse 0213.630M Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0213.630M is a 630 mA, 250 V AC/DC glass cartridge fuse with slow-blow response characteristics, designed for 5mm x 20mm holder applications. This part carries an obsolete product status, making identification of active equivalent alternatives essential for ongoing system maintenance and new design implementations. The fuse provides circuit protection across industrial and commercial applications requiring slow-blow response with a 35A breaking capacity at rated voltage.

Key Parameters

Parameter	Value
Current Rating	630 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Package / Case	5mm x 20mm
Response Time	Slow Blow
Breaking Capacity @ Rated Voltage	35A
Melting I²t	4.8
Operating Temperature Range	-55°C to 125°C
DC Cold Resistance	0.275 Ohms
Mounting Type	Requires Holder

Substitute Part Grouping Explanation

Substitution eligibility for the 0213.630M is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Current Rating: 630 mA (exact match required)
Voltage Rating (AC): 250 V (exact match required)
Package / Case: 5mm x 20mm (exact match required)
Fuse Type: Cartridge, Glass (exact match required)
Response Time: Slow Blow (exact match required)
Operating Temperature Range: -55°C to 125°C (exact match required)

Secondary Compatibility Parameters:

Breaking Capacity @ Rated Voltage: 35A or higher
Melting I²t: 4.675 to 4.82 (acceptable variance)
DC Cold Resistance: 0.275 Ohms (exact match)
Mounting Type: Requires Holder (exact match required)

All substitute parts listed maintain identical electrical and mechanical specifications to the main part, with variations only in series designation, packaging format, and regulatory certifications. Product status transitions from obsolete to active across all substitutes, ensuring long-term availability.

Parameter Comparison

Part Number	Manufacturer	Series	Current Rating	Voltage (AC)	Package	Response Time	Breaking Capacity	Melting I²t	Product Status	RoHS Status
0213.630M	Littelfuse Inc.	213	630 mA	250 V	5mm x 20mm	Slow Blow	35A	4.8	Obsolete	Non-compliant
0213.630MXBP	Littelfuse Inc.	213	630 mA	250 V	5mm x 20mm	Slow Blow	35A	4.8	Active	ROHS3 Compliant
0213.630MXP	Littelfuse Inc.	213	630 mA	250 V	5mm x 20mm	Slow Blow	35A	4.8	Active	ROHS3 Compliant
0213.630TXP	Littelfuse Inc.	213	630 mA	250 V	5mm x 20mm	Slow Blow	35A	4.8	Active	ROHS3 Compliant
0218.630HXP	Littelfuse Inc.	218	630 mA	250 V	5mm x 20mm	Slow Blow	35A	4.675	Active	ROHS3 Compliant
0218.630MXBP	Littelfuse Inc.	218	630 mA	250 V	5mm x 20mm	Slow Blow	35A	4.675	Active	ROHS3 Compliant
0218.630MXP	Littelfuse	218	630 mA	250 V	5mm x 20mm	Slow Blow	35A	4.675	Active	ROHS3 Compliant
0218.630TXP	Littelfuse Inc.	218	630 mA	250 V	5mm x 20mm	Slow Blow	35A	4.675	Active	ROHS3 Compliant
0218.630VXP	Littelfuse Inc.	218	630 mA	250 V	5mm x 20mm	Slow Blow	35A	4.675	Active	ROHS3 Compliant
0219.630MXABP	Littelfuse Inc.	219XA	630 mA	250 V	5mm x 20mm	Slow Blow	150A	4.82	Active	ROHS3 Compliant
0219.630MXAP	Littelfuse Inc.	219XA	630 mA	250 V	5mm x 20mm	Slow Blow	150A	4.82	Active	ROHS3 Compliant

Engineering Selection Recommendations

Series 213 Substitutes (0213.630MXBP, 0213.630MXP, 0213.630TXP): These parts maintain identical electrical and thermal characteristics to the original 0213.630M while transitioning to active product status. All three carry ROHS3 compliance and are suitable for direct replacement in existing designs. The 0213.630MXP variant offers the highest inventory availability (2415 units), making it the preferred choice for volume requirements.

Series 218 Substitutes (0218.630HXP, 0218.630MXBP, 0218.630MXP, 0218.630TXP, 0218.630VXP): Series 218 parts provide equivalent electrical performance with a marginal reduction in melting I²t (4.675 versus 4.8), representing a 2.6% variance within acceptable engineering tolerance. These parts carry expanded regulatory certifications including K-MARK and UL approval. The 0218.630MXP variant provides the highest inventory (2443 units) within this series.

Series 219XA Substitutes (0219.630MXABP, 0219.630MXAP): Series 219XA parts offer enhanced breaking capacity (150A versus 35A) while maintaining all other electrical specifications. These parts are suitable for applications requiring higher fault current withstand capability. Melting I²t increases to 4.82, representing a 0.25% improvement over the original specification.

Regulatory Compliance: All substitute parts achieve ROHS3 compliance and REACH unaffected status. Series 218 and 219XA variants include additional certifications (K-MARK, UL) beyond the original part's BSI, CCC, CE, CSA, SEMKO, UR, VDE approvals, providing expanded geographic and application coverage.

Frequently Asked Questions (FAQ)

Q: Can Series 218 parts directly replace Series 213 parts? A: Yes. Series 218 substitutes maintain identical current rating, voltage, package dimensions, and response characteristics. The 2.6% reduction in melting I²t (4.675 versus 4.8) falls within acceptable engineering variance for slow-blow fuse applications and does not compromise circuit protection function.

Q: What is the difference between packaging designations (MXBP, MXP, TXP, HXP, VXP)? A: Packaging designations indicate different tape-and-reel or bulk packaging formats. All variants maintain identical electrical and mechanical specifications. Selection should be based on procurement and assembly requirements rather than electrical performance.

Q: Are Series 219XA parts suitable for applications designed for the original 0213.630M? A: Series 219XA parts are electrically equivalent and mechanically compatible. The 150A breaking capacity provides enhanced fault current protection compared to the original 35A rating. These parts are suitable for replacement in all applications where the original part was specified.

Q: What inventory considerations apply to substitute selection? A: The 0213.630MXP (Series 213) offers 2415 units in stock, while 0218.630MXP (Series 218) provides 2443 units. Both represent optimal choices for volume applications. Series 219XA variants offer lower inventory (928–1079 units) but provide enhanced breaking capacity specifications.

Q: Do all substitute parts meet the original operating temperature range? A: Yes. All substitute parts maintain the -55°C to 125°C operating temperature range specified for the original 0213.630M, ensuring thermal compatibility across all environmental conditions.

Q: What regulatory certifications should be considered for geographic deployment? A: The original part carries BSI, CCC, CE, CSA, SEMKO, UR, and VDE approvals. Series 218 and 219XA variants add K-MARK and UL certifications, providing expanded compliance for North American and Asian market applications. All parts maintain ROHS3 compliance and REACH unaffected status.

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