Littelfuse 0239.200H Glass Cartridge Fuse 200mA 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 0239.200H is a 200mA 250VAC glass cartridge fuse in 5x20mm form factor, classified as obsolete. This fuse requires a holder for installation and operates across a temperature range of -55°C to 125°C. Due to its obsolete product status, identifying active equivalent and substitute parts is necessary for ongoing system maintenance and new design implementations. The substitute parts listed maintain identical electrical ratings and mechanical dimensions while offering improved compliance certifications and active manufacturing status.

Key Parameters

Parameter	Value
Current Rating	200 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Response Time	Slow Blow
Package / Case	5mm x 20mm
Mounting Type	Requires Holder
Breaking Capacity @ Rated Voltage	35A (main part); 150A (219XA series)
Operating Temperature Range	-55°C to 125°C
DC Cold Resistance	3.9 Ohms (main part); 1.6 Ohms (substitutes)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence in the following parameters:

Current Rating: 200 mA (mandatory match)
Voltage Rating (AC): 250 V (mandatory match)
Fuse Type: Cartridge, Glass (mandatory match)
Response Time: Slow Blow (mandatory match)
Package / Case: 5mm x 20mm (mandatory match)
Mounting Type: Requires Holder (mandatory match)
Operating Temperature Range: -55°C to 125°C (mandatory match)

All substitute parts meet these criteria. Variations in Breaking Capacity, Melting I²t, and DC Cold Resistance do not preclude substitution when the above parameters are identical. The 0219.200MXABP and 0219.200MXAP variants offer enhanced Breaking Capacity (150A) compared to the main part (35A), providing superior fault protection capability while maintaining all other electrical and mechanical specifications.

Parameter Comparison

Part Number	Manufacturer	Series	Current Rating	Voltage Rating (AC)	Response Time	Package	Breaking Capacity	Melting I²t	DC Cold Resistance	Product Status	RoHS Status
0239.200H	Littelfuse Inc.	239	200 mA	250 V	Slow Blow	5x20mm	35A	0.17	3.9 Ohms	Obsolete	Non-compliant
0213.200MXBP	Littelfuse Inc.	213	200 mA	250 V	Slow Blow	5x20mm	35A	0.225	1.6 Ohms	Active	ROHS3 Compliant
0213.200MXP	Littelfuse Inc.	213	200 mA	250 V	Slow Blow	5x20mm	35A	0.225	1.6 Ohms	Active	ROHS3 Compliant
0213.200TXP	Littelfuse Inc.	213	200 mA	250 V	Slow Blow	5x20mm	35A	0.225	1.6 Ohms	Active	ROHS3 Compliant
0218.200HXP	Littelfuse Inc.	218	200 mA	250 V	Slow Blow	5x20mm	35A	0.341	1.6 Ohms	Active	ROHS3 Compliant
0218.200MXBP	Littelfuse Inc.	218	200 mA	250 V	Slow Blow	5x20mm	35A	0.341	1.6 Ohms	Active	ROHS3 Compliant
0218.200MXP	Littelfuse Inc.	218	200 mA	250 V	Slow Blow	5x20mm	35A	0.341	1.6 Ohms	Active	ROHS3 Compliant
0218.200TXP	Littelfuse Inc.	218	200 mA	250 V	Slow Blow	5x20mm	35A	0.341	1.6 Ohms	Active	ROHS3 Compliant
0218.200VXP	Littelfuse Inc.	218	200 mA	250 V	Slow Blow	5x20mm	35A	0.341	1.6 Ohms	Active	ROHS3 Compliant
0219.200MXABP	Littelfuse Inc.	219XA	200 mA	250 V	Slow Blow	5x20mm	150A	0.32	1.6 Ohms	Active	ROHS3 Compliant
0219.200MXAP	Littelfuse Inc.	219XA	200 mA	250 V	Slow Blow	5x20mm	150A	0.32	1.6 Ohms	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are electrically and mechanically equivalent to the 0239.200H and are suitable for direct replacement in applications requiring a 200mA 250VAC slow-blow glass cartridge fuse in 5x20mm form factor.

Series 213, 218, and 219XA substitutes offer ROHS3 compliance, addressing regulatory requirements that the obsolete 0239.200H does not meet. The 218 and 219XA series provide enhanced Melting I²t values (0.341 and 0.32 respectively) compared to the main part (0.17), resulting in improved thermal stability. The 219XA series (0219.200MXABP and 0219.200MXAP) additionally provides 150A Breaking Capacity versus 35A in the main part, delivering superior fault protection in high-fault-current environments.

All substitute parts maintain the -55°C to 125°C operating temperature range and require identical holder installations. Selection among substitutes should be based on specific application requirements for Breaking Capacity, compliance certifications, and thermal characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 0239.200H be directly replaced with any of the listed substitutes?

A: Yes. All listed parts are parametric equivalents sharing identical current rating (200mA), voltage rating (250VAC), fuse type (cartridge glass), response time (slow blow), package dimensions (5x20mm), and mounting requirements (requires holder). Direct mechanical and electrical substitution is valid.

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

A: Series 213 and 218 maintain the 35A Breaking Capacity of the original part. Series 219XA (0219.200MXABP and 0219.200MXAP) provides enhanced 150A Breaking Capacity for applications requiring superior fault protection. All three series are electrically equivalent at rated current and voltage.

Q: Does the lower DC Cold Resistance (1.6 Ohms vs. 3.9 Ohms) in substitute parts affect compatibility?

A: No. DC Cold Resistance variation does not affect substitution eligibility when all other electrical and mechanical parameters match. Lower resistance in substitutes represents improved design characteristics and does not compromise circuit compatibility.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant. The original 0239.200H is RoHS non-compliant. Substitution with any listed part addresses RoHS regulatory requirements.

Q: What certifications do the substitute parts carry?

A: Series 213 parts carry BSI, CCC, CE, CSA, SEMKO, UR, and VDE certifications. Series 218 parts carry CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE certifications. Series 219XA parts carry CCC, CE, CSA, SEMKO, UL, and VDE certifications. The original 0239.200H carries CSA, K-MARK, METI, and UL certifications.

Q: Can I use a 219XA series fuse (150A Breaking Capacity) in place of the original 35A Breaking Capacity part?

A: Yes. The 219XA series provides equivalent electrical performance at rated current and voltage while offering enhanced fault protection capability. This represents a performance upgrade with no compatibility concerns.

Q: What is the inventory status of substitute parts?

A: All substitute parts are in active production with current inventory availability ranging from 744 to 3993 pieces, ensuring reliable supply for replacement and new design applications.

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