Equivalent & Substitute Parts for MDL-1/100

Part Overview

The MDL-1/100 is a 10 mA, 250 V AC/DC glass cartridge fuse manufactured by Eaton - Electronics Division. This fuse is designed for applications requiring slow-blow response characteristics and operates within the 3AB and 3AG holder standards with dimensions of 1/4" x 1-1/4" (6.35mm x 31.75mm). The product maintains active status with 846 pieces currently in stock. Alternative equivalent parts are necessary to support supply chain flexibility, extended availability, and procurement options across multiple manufacturers while maintaining identical electrical and mechanical performance.

Substiute Parts

MDL-1/100

Eaton - Electronics DivisionIn Stock: 873MDL-1/100 Datasheet

Current PartRFQ

0313.010HXP

Littelfuse Inc.In Stock: 8510313.010HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MDL-1/100 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Current Rating: 10 mA (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Response Time: Slow Blow (exact match required)

Mechanical Parameters:

• Fuse Type: Cartridge, Glass (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Physical Dimensions: 0.250" Dia x 1.250" L (exact match required)
• Mounting Type: Requires Holder (exact match required)

Compliance Parameters:

• Approval Agencies: CSA and UL certifications (minimum requirement)

The substitute part 0313.010HXP from Littelfuse Inc. meets all critical substitution criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the MDL-1/100 and 0313.010HXP are active products with full regulatory compliance. The MDL-1/100 carries CSA and UL approvals, while the 0313.010HXP carries CE, CSA, and UL approvals. Selection between these parts should be based on:

Availability and Lead Time: The MDL-1/100 has 846 pieces in stock, while the 0313.010HXP has 777 pieces in stock. Either part is suitable for immediate procurement.

Regulatory Requirements: If CE compliance is required for the application, the 0313.010HXP provides additional certification coverage. For applications requiring only CSA and UL compliance, both parts are equivalent.

Supply Chain Strategy: The 0313.010HXP serves as a qualified alternative when MDL-1/100 availability is constrained or when multi-source qualification is required.

Frequently Asked Questions (FAQ)

Q: Can the 0313.010HXP replace the MDL-1/100 in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical ratings (10 mA, 250 V AC), fuse type (cartridge, glass), response time (slow blow), and mechanical dimensions (0.250" Dia x 1.250" L). Both require the same 3AB/3AG holder and are pin-compatible.

Q: Are there any differences in performance between these two fuses?

A: Both fuses meet the same electrical and mechanical specifications for the application. The 0313.010HXP provides additional technical data including breaking capacity (35A), melting I²t (0.000121), DC cold resistance (4300 Ohms), and extended operating temperature range (-55°C ~ 125°C). These parameters do not affect substitution compatibility.

Q: What holder types are compatible with these fuses?

A: Both the MDL-1/100 and 0313.010HXP require a 3AB or 3AG holder. The 1/4" x 1-1/4" form factor is standard for these holder types.

Q: Are both parts RoHS compliant?

A: The 0313.010HXP is explicitly ROHS3 compliant. The MDL-1/100 does not specify RoHS status in the provided data. If RoHS compliance is required, the 0313.010HXP is the specified choice.

Q: What is the difference between slow-blow and fast-blow fuses?

A: Both parts are slow-blow fuses, meaning they tolerate temporary current surges without opening. This characteristic is identical between the MDL-1/100 and 0313.010HXP and is appropriate for circuits with inrush current or transient conditions.

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

A: Yes. Both parts are rated for 250 V AC/DC operation, making them suitable for either application type.