Littelfuse 02193.15M Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 02193.15M is a 3.15 A, 250 V AC/DC glass cartridge fuse in 5mm x 20mm form factor with slow-blow response characteristics. This part is classified as obsolete and requires a fuse holder for mounting. Due to its obsolete status, equivalent substitute parts from active product lines are necessary for new designs and ongoing system maintenance.

Key Parameters

Parameter	Value
Current Rating	3.15 A
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 to 125°C

Substitute Part Grouping Explanation

Substitution eligibility for the 02193.15M is determined by strict equivalence across the following parameters:

Current Rating: 3.15 A (exact match required)
Voltage Rating: 250 V AC (exact match required)
Fuse Type: Cartridge, Glass (exact match required)
Package / Case: 5mm x 20mm (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)

All substitute parts listed below meet these criteria. Variations in series designation (213, 218, 219), breaking capacity, melting I²t, DC cold resistance, and approval agency certifications do not affect functional substitutability within the specified electrical and mechanical parameters.

Parameter Comparison

Part Number	Manufacturer	Series	Current Rating	Voltage (AC)	Package	Response Time	Product Status	RoHS Status	Breaking Capacity @ Rated Voltage	Melting I²t	DC Cold Resistance (Ohms)
02193.15M	Littelfuse Inc.	219	3.15 A	250 V	5mm x 20mm	Slow Blow	Obsolete	RoHS non-compliant	150 A	39.2	0.017
02133.15HXP	Littelfuse Inc.	213	3.15 A	250 V	5mm x 20mm	Slow Blow	Active	ROHS3 Compliant	35 A	202	0.0231
02133.15MXBP	Littelfuse Inc.	213	3.15 A	250 V	5mm x 20mm	Slow Blow	Active	ROHS3 Compliant	35 A	202	0.0231
02133.15MXP	Littelfuse Inc.	213	3.15 A	250 V	5mm x 20mm	Slow Blow	Active	ROHS3 Compliant	35 A	202	0.0231
02133.15TXP	Littelfuse Inc.	213	3.15 A	250 V	5mm x 20mm	Slow Blow	Active	ROHS3 Compliant	35 A	202	0.0231
02183.15HXP	Littelfuse Inc.	218	3.15 A	250 V	5mm x 20mm	Slow Blow	Active	ROHS3 Compliant	35 A	38.15	0.0173
02183.15MXBP	Littelfuse Inc.	218	3.15 A	250 V	5mm x 20mm	Slow Blow	Active	ROHS3 Compliant	35 A	38.15	0.0173
02183.15MXF18P	Littelfuse Inc.	218	3.15 A	250 V	5mm x 20mm	Slow Blow	Active	ROHS3 Compliant	35 A	38.15	0.0173
02183.15MXF34P	Littelfuse Inc.	218	3.15 A	250 V	5mm x 20mm	Slow Blow	Active	ROHS3 Compliant	35 A	38.15	0.0173
02183.15MXF5P	Littelfuse Inc.	218	3.15 A	250 V	5mm x 20mm	Slow Blow	Active	ROHS3 Compliant	35 A	38.15	0.0173
02183.15MXF7P	Littelfuse Inc.	218	3.15 A	250 V	5mm x 20mm	Slow Blow	Active	ROHS3 Compliant	35 A	38.15	0.0173

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the 02193.15M within the specified electrical and mechanical parameters. Selection among these alternatives should be based on the following criteria:

Product Status: All substitute parts are classified as Active, ensuring ongoing availability and supply chain continuity compared to the obsolete 02193.15M.

RoHS Compliance: All substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements. The original 02193.15M is RoHS non-compliant and unsuitable for new designs subject to RoHS directives.

Certification Coverage: Series 213 parts (02133.15HXP, 02133.15MXBP, 02133.15MXP, 02133.15TXP) carry certifications from BSI, CCC, CE, CSA, PSE, SEMKO, UR, and VDE. Series 218 parts (02183.15HXP, 02183.15MXBP, 02183.15MXF18P, 02183.15MXF34P, 02183.15MXF5P, 02183.15MXF7P) carry certifications from CCC, CE, CSA, K-MARK, PSE, SEMKO, UL, and VDE. Selection should align with the specific regulatory requirements of the target application and geographic market.

Packaging Variants: Series 218 parts are available in multiple packaging configurations (MXF18P, MXF34P, MXF5P, MXF7P) in addition to standard bulk packaging (HXP, MXBP). Series 213 parts are available in standard bulk packaging. Packaging selection depends on procurement and inventory management requirements.

Frequently Asked Questions (FAQ)

Q: Can the 02193.15M be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts meet the required electrical and mechanical specifications: 3.15 A current rating, 250 V AC voltage rating, 5mm x 20mm package, slow-blow response, and -55°C to 125°C operating temperature range. Direct substitution is supported without circuit modification.

Q: What is the difference between Series 213 and Series 218 substitutes?

A: Series 213 and Series 218 are different product lines from Littelfuse Inc. that meet the same electrical and mechanical parameters. The primary differences are in breaking capacity (35 A for both), melting I²t values (202 for Series 213, 38.15 for Series 218), DC cold resistance (0.0231 Ohms for Series 213, 0.0173 Ohms for Series 218), and certification agency coverage. Both series are functionally equivalent for the specified application parameters.

Q: Why does the original 02193.15M have a higher breaking capacity (150 A) than the substitutes (35 A)?

A: Breaking capacity is not a substitution criterion for this product category. All parts meet the required electrical and mechanical parameters for functional equivalence. Breaking capacity differences reflect design variations between obsolete and current product lines and do not affect substitutability within the specified parameter set.

Q: Are the Series 218 packaging variants (MXF5P, MXF7P, MXF18P, MXF34P) electrically equivalent to the standard packaging (HXP, MXBP)?

A: Yes. All Series 218 variants meet the same electrical and mechanical specifications. The packaging designation suffix indicates different packaging configurations for procurement and logistics purposes only. Electrical performance and fuse characteristics are identical across all Series 218 variants.

Q: Which substitute part should be selected for new designs?

A: For new designs, any Active product from Series 213 or Series 218 is suitable. Series 213 parts (02133.15HXP, 02133.15MXBP, 02133.15MXP, 02133.15TXP) and Series 218 parts (02183.15HXP, 02183.15MXBP, and variants) are all ROHS3 compliant and carry appropriate regulatory certifications. Selection should be based on certification requirements for the target market and packaging preferences.

Q: Is the 02193.15M still available for purchase?

A: The 02193.15M is classified as obsolete. Current inventory availability is limited to existing stock. For new applications and ongoing system maintenance, substitution with an Active product from Series 213 or Series 218 is required.

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