Littelfuse 0213.630MXEP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0213.630MXEP is a 630 mA, 250 V AC/DC slow-blow glass cartridge fuse with through-hole mounting in a 5mm x 20mm axial package. This fuse is designed for circuit protection in industrial and commercial applications requiring reliable overcurrent protection with delayed response characteristics. The part maintains active product status with full regulatory compliance across multiple international standards. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

0213.630MXEP

Littelfuse Inc.In Stock: 8140213.630MXEP Datasheet

Current PartRFQ

0218.630MXEP

Littelfuse Inc.In Stock: 19590218.630MXEP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Littelfuse 0213.630MXEP is determined by strict equivalence across the following critical parameters:

• Current Rating: 630 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 (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Breaking Capacity: 35 A (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)

The substitute part 0218.630MXEP meets all critical electrical and mechanical parameters. Both parts are manufactured by Littelfuse Inc., belong to different series (213 vs. 218), and maintain identical functional specifications for circuit protection applications. Differences in melting I²t (4.8 vs. 4.675) and regulatory certifications are within acceptable engineering tolerances for this product category.

Parameter Comparison

Engineering Selection Recommendations

Both the 0213.630MXEP and 0218.630MXEP are active products manufactured by Littelfuse Inc. with full regulatory compliance. Selection between these parts should be based on:

Regulatory Certifications: The 0213.630MXEP carries BSI, CCC, CE, CSA, SEMKO, UR, and VDE approvals. The 0218.630MXEP carries CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE approvals. Both meet international safety standards; selection depends on specific regional compliance requirements for the end application.

Inventory Availability: The 0218.630MXEP has higher stock availability (1852 pcs vs. 758 pcs), which may influence procurement decisions for high-volume applications.

Electrical Performance: Both parts deliver identical electrical characteristics across all critical parameters, including current rating, voltage rating, breaking capacity, and operating temperature range. The minor difference in melting I²t (4.8 vs. 4.675) does not affect functional equivalence for standard circuit protection applications.

Physical Compatibility: Both parts are identical in package dimensions and mounting configuration, ensuring direct mechanical and electrical interchangeability in existing PCB designs and fuse holders.

Frequently Asked Questions (FAQ)

Q: Can the 0218.630MXEP be used as a direct replacement for the 0213.630MXEP?

A: Yes. Both parts are parametrically equivalent across all critical electrical and mechanical specifications: 630 mA current rating, 250 V AC voltage rating, slow-blow response, 5mm x 20mm package, and 35 A breaking capacity. Physical dimensions and mounting type are identical, enabling direct substitution in existing designs.

Q: What is the difference between the 213 and 218 series designations?

A: The series designation indicates different product lines within Littelfuse's cartridge fuse portfolio. Both series deliver equivalent performance for the 630 mA, 250 V specification. The difference is primarily organizational within the manufacturer's product structure and does not affect electrical or mechanical compatibility.

Q: Are there differences in regulatory certifications between these parts?

A: Yes. The 0213.630MXEP includes BSI, CCC, CE, CSA, SEMKO, UR, and VDE certifications. The 0218.630MXEP includes CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE certifications. Both meet international safety standards. Verify that the selected part's certification profile aligns with your application's regional compliance requirements.

Q: What does "slow blow" response time mean?

A: Slow-blow fuses are designed to tolerate temporary inrush currents without nuisance tripping, while still providing protection against sustained overcurrent conditions. This characteristic is identical in both the 0213.630MXEP and 0218.630MXEP.

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

A: Yes. Both parts are rated for 250 V AC/DC operation, making them suitable for use in alternating current and direct current applications within the specified voltage and current limits.

Q: What is the significance of the 0.275 Ohms DC cold resistance specification?

A: DC cold resistance represents the fuse element's resistance at room temperature before current flow. This value is identical in both parts (0.275 Ohms) and is used in circuit design calculations to determine voltage drop and power dissipation under normal operating conditions.

Q: Are both parts RoHS compliant?

A: Yes. Both the 0213.630MXEP and 0218.630MXEP are ROHS3 compliant, meeting restrictions on hazardous substances in electrical and electronic equipment.