Littelfuse 0213.315M Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0213.315M is a 315 mA, 250 V AC/DC glass cartridge fuse with slow-blow response characteristics, designed for 5mm x 20mm holder mounting. This part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for direct replacement in existing applications.

Key Parameters

Parameter	Value
Current Rating	315 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Package / Case	5mm x 20mm
Response Time	Slow Blow
Mounting Type	Requires Holder
Breaking Capacity @ Rated Voltage	35A
Operating Temperature Range	-55°C to 125°C
DC Cold Resistance	0.8475 Ohms

Substitute Part Grouping Explanation

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

Current Rating: 315 mA (exact match required)
Voltage Rating: 250 V AC (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)
Mounting Type: Requires Holder (exact match required)
Operating Temperature Range: -55°C to 125°C (exact match required)
DC Cold Resistance: 0.8475 Ohms (exact match required)

Substitute parts are grouped into two series categories based on manufacturer design: Series 213 (active status alternatives to the obsolete 0213.315M) and Series 218/219XA (functionally equivalent alternatives with enhanced certifications and higher breaking capacity ratings).

Parameter Comparison

Part Number	Manufacturer	Series	Status	Current Rating	Voltage (AC)	Package	Response Time	Breaking Capacity	Melting I²t	RoHS Status
0213.315M	Littelfuse Inc.	213	Obsolete	315 mA	250 V	5x20mm	Slow Blow	35A	1.14	Non-compliant
0213.315MXBP	Littelfuse Inc.	213	Active	315 mA	250 V	5x20mm	Slow Blow	35A	1.14	ROHS3 Compliant
0213.315MXP	Littelfuse Inc.	213	Active	315 mA	250 V	5x20mm	Slow Blow	35A	1.14	ROHS3 Compliant
0213.315TXP	Littelfuse Inc.	213	Active	315 mA	250 V	5x20mm	Slow Blow	35A	1.14	ROHS3 Compliant
0218.315HXP	Littelfuse Inc.	218	Active	315 mA	250 V	5x20mm	Slow Blow	35A	1.11	ROHS3 Compliant
0218.315MXBP	Littelfuse Inc.	218	Active	315 mA	250 V	5x20mm	Slow Blow	35A	1.11	ROHS3 Compliant
0218.315MXP	Littelfuse Inc.	218	Active	315 mA	250 V	5x20mm	Slow Blow	35A	1.11	ROHS3 Compliant
0218.315TXP	Littelfuse Inc.	218	Active	315 mA	250 V	5x20mm	Slow Blow	35A	1.11	ROHS3 Compliant
0218.315VXP	Littelfuse Inc.	218	Active	315 mA	250 V	5x20mm	Slow Blow	35A	1.11	ROHS3 Compliant
0219.315MXABP	Littelfuse Inc.	219XA	Active	315 mA	250 V	5x20mm	Slow Blow	150A	1.23	ROHS3 Compliant
0219.315MXAP	Littelfuse Inc.	219XA	Active	315 mA	250 V	5x20mm	Slow Blow	150A	1.23	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain electrical and mechanical compatibility with the 0213.315M across current rating, voltage, package dimensions, response characteristics, and operating temperature range.

Series 213 alternatives (0213.315MXBP, 0213.315MXP, 0213.315TXP) provide direct functional equivalence with active product status and ROHS3 compliance. These parts retain the 35A breaking capacity and 1.14 melting I²t value of the original part.

Series 218 alternatives (0218.315HXP, 0218.315MXBP, 0218.315MXP, 0218.315TXP, 0218.315VXP) offer active status with ROHS3 compliance and expanded certification coverage (CCC, CE, CSA, K-MARK/KC, SEMKO, UL, VDE). The melting I²t value is 1.11, representing a minor thermal characteristic variation within the same fuse class.

Series 219XA alternatives (0219.315MXABP, 0219.315MXAP) provide the highest breaking capacity at 150A with melting I²t of 1.23, suitable for applications requiring enhanced fault current handling. These parts carry ROHS3 compliance and MSL Level 1 moisture sensitivity rating.

Packaging variants (bulk vs. standard) do not affect electrical or mechanical performance; selection depends on procurement and inventory requirements.

Frequently Asked Questions (FAQ)

Q: Can Series 218 and 219XA parts directly replace the 0213.315M?

A: Yes. All substitute parts maintain identical current rating (315 mA), voltage rating (250 V AC), package dimensions (5mm x 20mm), response time (slow blow), and operating temperature range (-55°C to 125°C). Physical and electrical compatibility is confirmed.

Q: What is the difference between the melting I²t values (1.14 vs. 1.11 vs. 1.23)?

A: Melting I²t represents the thermal energy required to melt the fuse element. Series 213 parts specify 1.14, Series 218 parts specify 1.11, and Series 219XA parts specify 1.23. These variations reflect design differences within the same fuse classification and do not affect substitution eligibility for the specified current and voltage ratings.

Q: What is the significance of the breaking capacity difference (35A vs. 150A)?

A: Breaking capacity indicates the maximum fault current the fuse can safely interrupt. Series 213 and 218 parts are rated at 35A; Series 219XA parts are rated at 150A. Both ratings exceed typical circuit requirements for 315 mA fuses. Selection depends on the specific fault current environment of the application.

Q: Are there packaging differences between the substitute parts?

A: Substitute parts are available in bulk packaging. Packaging designation (MXBP, MXP, TXP, HXP, VXP) indicates internal manufacturing or distribution variants but does not affect electrical performance or physical dimensions.

Q: Which substitute part offers the best compliance profile?

A: Series 218 and 219XA parts carry ROHS3 compliance and expanded international certifications (CCC, CE, CSA, K-MARK/KC, SEMKO, UL, VDE). Series 213 alternatives also provide ROHS3 compliance with certifications including BSI, CCC, CE, CSA, SEMKO, UR, VDE. Selection should align with specific regulatory requirements of the target application region.

Q: Is the DC cold resistance specification critical for substitution?

A: All substitute parts maintain the 0.8475 Ohm DC cold resistance value of the original part. This parameter is held constant across all alternatives and does not differentiate substitution eligibility.

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