Littelfuse 0229.750MXP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0229.750MXP is a 750 mA slow-blow glass cartridge fuse rated for 250 V AC and 125 V DC operation. This component is designed for circuit protection in applications requiring a 2AG form factor (5mm x 15mm) and operates across a temperature range of -55°C to 125°C. The part maintains Active product status and carries multiple international approvals including CE, CSA, and UL certification. Equivalent substitute parts are identified based on identical electrical ratings, mechanical dimensions, and performance characteristics to ensure direct interchangeability in circuit protection applications.

Substiute Parts

0229.750MXP

Littelfuse Inc.In Stock: 15150229.750MXP Datasheet

Current PartRFQ

0229.750HXP

Littelfuse Inc.In Stock: 13150229.750HXP Datasheet

Parametric EquivalentRFQ

0229.750VXP

LittelfuseIn Stock: 8030229.750VXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0229.750MXP are classified as parametric equivalents based on strict alignment with the following critical parameters:

• Current Rating: 750 mA (exact match required)
• Voltage Ratings: 250 V AC and 125 V DC (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 2AG, 5mm x 15mm (exact match required)
• Breaking Capacity: 35A AC, 10kA DC (exact match required)
• Melting I²t: 2.95 (exact match required)
• Operating Temperature: -55°C ~ 125°C (exact match required)
• Compliance: CE, CSA, UL certifications (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

All identified substitutes meet these criteria and are suitable for direct replacement in applications where the 0229.750MXP is specified.

Parameter Comparison

Engineering Selection Recommendations

All three parts—0229.750MXP, 0229.750HXP, and 0229.750VXP—are direct parametric equivalents suitable for interchangeable use in circuit protection applications. Selection among these parts may be based on availability and inventory status:

• 0229.750MXP: 1408 Pcs in stock
• 0229.750HXP: 1234 Pcs in stock
• 0229.750VXP: 713 Pcs in stock

All parts carry identical electrical specifications, mechanical dimensions, thermal ratings, and international compliance certifications (CE, CSA, UL). Each part is ROHS3 compliant and maintains the same performance characteristics including breaking capacity, melting I²t, and DC cold resistance. No performance trade-offs exist between these options.

Frequently Asked Questions (FAQ)

Q: Can 0229.750HXP or 0229.750VXP be used as direct replacements for 0229.750MXP?

A: Yes. Both parts are parametric equivalents with identical current ratings (750 mA), voltage ratings (250 V AC, 125 V DC), fuse type (cartridge, glass), response time (slow blow), package dimensions (2AG, 5mm x 15mm), breaking capacity, and thermal operating range. Direct substitution is supported.

Q: Are there any differences in approval certifications between these parts?

A: No. All three parts carry identical certifications: CE, CSA, and UL. All are ROHS3 compliant and REACH unaffected.

Q: What does the 2AG package designation mean?

A: 2AG refers to the standardized form factor for glass cartridge fuses with dimensions of 5mm diameter by 15mm length. All three parts conform to this standard and require a compatible 2AG fuse holder for installation.

Q: Is the slow-blow response time consistent across all three parts?

A: Yes. All three parts are slow-blow fuses with identical melting I²t values of 2.95, ensuring consistent response characteristics in circuit protection applications.

Q: What is the significance of the DC cold resistance specification?

A: DC cold resistance (0.343 Ohms) is the measured resistance of the fuse element at room temperature. This value is identical across all three parts and affects voltage drop and heat dissipation during normal operation.

Q: Can these fuses be used in both AC and DC circuits?

A: Yes. All three parts are rated for both AC (250 V) and DC (125 V) operation, with the DC voltage rating being lower than the AC rating. Application voltage must not exceed the respective rating for the circuit type.