Littelfuse 0219.250M Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0219.250M is a 250 mA, 250 V AC/DC slow-blow glass cartridge fuse in 5mm x 20mm form factor, designed for applications requiring holder-mounted protection. This part is classified as obsolete. Active equivalent and substitute parts are available from Littelfuse series 213, 218, and 219XA that maintain the same electrical and mechanical specifications, enabling direct functional replacement in circuit protection applications.

Key Parameters

Parameter	Value
Current Rating	250 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Response Time	Slow Blow
Package / Case	5mm x 20mm
Mounting Type	Requires Holder
Operating Temperature Range	-55°C to 125°C
Melting I²t	0.555

Substitute Part Grouping Explanation

Substitution for the 0219.250M is determined by strict equivalence across the following parameters:

Current Rating: 250 mA (exact match required)
Voltage Rating: 250 V AC (exact match required)
Fuse Type: Cartridge, Glass (exact match required)
Response Time: Slow Blow (exact match required)
Package / Case: 5mm x 20mm (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. Differences in Breaking Capacity, Melting I²t, DC Cold Resistance, and approval certifications are noted but do not prevent functional substitution when these parameters are acceptable for the target application.

Parameter Comparison

Part Number	Series	Status	Current Rating	Voltage (AC)	Response Time	Package	Breaking Capacity @ Rated Voltage	Melting I²t	DC Cold Resistance (Ohms)	RoHS Status
0219.250M	219	Obsolete	250 mA	250 V	Slow Blow	5mm x 20mm	150 A	0.555	1.05	Non-compliant
0213.250MXBP	213	Active	250 mA	250 V	Slow Blow	5mm x 20mm	35 A	0.555	1.0495	ROHS3 Compliant
0213.250MXP	213	Active	250 mA	250 V	Slow Blow	5mm x 20mm	35 A	0.555	1.0495	ROHS3 Compliant
0213.250TXP	213	Active	250 mA	250 V	Slow Blow	5mm x 20mm	35 A	0.555	1.0495	ROHS3 Compliant
0218.250HXP	218	Active	250 mA	250 V	Slow Blow	5mm x 20mm	35 A	0.5405	1.0495	ROHS3 Compliant
0218.250MX8810P	218	Active	250 mA	250 V	Slow Blow	5mm x 20mm	35 A	0.5405	1.0495	ROHS3 Compliant
0218.250MXBP	218	Active	250 mA	250 V	Slow Blow	5mm x 20mm	35 A	0.5405	1.0495	ROHS3 Compliant
0218.250MXP	218	Active	250 mA	250 V	Slow Blow	5mm x 20mm	35 A	0.5405	1.0495	ROHS3 Compliant
0218.250TXP	218	Active	250 mA	250 V	Slow Blow	5mm x 20mm	35 A	0.5405	1.0495	ROHS3 Compliant
0218.250VXP	218	Active	250 mA	250 V	Slow Blow	5mm x 20mm	35 A	0.5405	1.0495	ROHS3 Compliant
0219.250MXABP	219XA	Active	250 mA	250 V	Slow Blow	5mm x 20mm	150 A	0.54	1.0495	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the 0219.250M based on electrical and mechanical parameters. Selection should be guided by the following criteria:

For RoHS3 Compliance Requirements: All active substitute parts (series 213, 218, and 219XA) are ROHS3 compliant, whereas the original 0219.250M is non-compliant. New designs should specify one of the active alternatives.

For Breaking Capacity Matching: The original 0219.250M and 0219.250MXABP both feature 150 A breaking capacity at rated voltage. Series 213 and 218 parts feature 35 A breaking capacity. Select based on application requirements.

For Melting I²t Characteristics: The original part specifies 0.555 Melting I²t. Series 213 parts maintain this value (0.555), while series 218 and 219XA parts specify 0.5405. This minor variation does not affect functional substitution for standard applications.

For Certification Coverage: The original 0219.250M carries BSI, CCC, CSA, KTL, PSE, SEMKO, UR, and VDE approvals. Active substitutes carry varying certification combinations. Verify that the selected substitute meets all required regulatory approvals for the target market and application.

For Inventory and Availability: Series 218 parts, particularly 0218.250MXP (2100 pcs), offer the highest stock levels among active alternatives.

Frequently Asked Questions (FAQ)

Q: Can I directly replace a 0219.250M with any of the listed substitute parts?

A: Yes, all listed parts are electrically and mechanically equivalent based on current rating, voltage rating, fuse type, response time, package dimensions, and operating temperature range. Verify that the selected substitute meets all required regulatory certifications for your application.

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

A: All three series maintain identical electrical specifications (250 mA, 250 V, slow-blow, 5mm x 20mm). The primary differences are breaking capacity (series 213 and 218 feature 35 A; series 219XA features 150 A), minor variations in Melting I²t, and certification coverage. Series selection should be based on application requirements and regulatory compliance needs.

Q: Why does the original 0219.250M have a higher breaking capacity (150 A) than most substitutes?

A: Breaking capacity is a design characteristic that does not affect the fuse's primary function of protecting circuits at its rated current (250 mA). The 150 A breaking capacity of the original part and 0219.250MXABP indicates capability to safely interrupt higher fault currents. For most applications, the 35 A breaking capacity of series 213 and 218 is sufficient. Consult application requirements to determine if higher breaking capacity is necessary.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts (series 213, 218, and 219XA) are ROHS3 compliant. The original 0219.250M is non-compliant. For new designs or applications requiring RoHS compliance, select from the active alternatives.

Q: What certifications should I verify before selecting a substitute?

A: The original 0219.250M carries BSI, CCC, CSA, KTL, PSE, SEMKO, UR, and VDE approvals. Active substitutes carry varying certification combinations. Identify all required certifications for your target market and application, then select a substitute that meets or exceeds those requirements.

Q: Can I use 0219.250MXABP as a direct replacement for 0219.250M?

A: Yes. The 0219.250MXABP is electrically and mechanically equivalent, maintains the same 150 A breaking capacity, and is ROHS3 compliant and actively produced. It is the closest functional equivalent within the active product line.

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