MDL-1/100-R Equivalent & Substitute Parts Reference

Part Overview

The MDL-1/100-R is a 10 mA, 250 V AC/DC glass cartridge fuse manufactured by Eaton Electronics Division with slow-blow response characteristics. This fuse is designed for 3AB and 3AG holder compatibility with dimensions of 0.250" diameter by 1.250" length (6.35mm x 31.75mm). The part is currently listed as obsolete, necessitating identification of active equivalent and substitute components for ongoing system maintenance and new designs. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives within the same application category.

Substiute Parts

MDL-1/100-R

Eaton - Electronics DivisionIn Stock: 689MDL-1/100-R Datasheet

Current PartRFQ

BK/MDL-1/100

Eaton - Electronics DivisionIn Stock: 1080BK/MDL-1/100 Datasheet

Parametric EquivalentRFQ

BK/MDQ-1/100

Eaton - Electronics DivisionIn Stock: 907BK/MDQ-1/100 Datasheet

Parametric EquivalentRFQ

MDL-1/100

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

Parametric EquivalentRFQ

MDQ-1/100

Eaton - Electronics DivisionIn Stock: 846MDQ-1/100 Datasheet

Parametric EquivalentRFQ

0313.010HXP

Littelfuse Inc.In Stock: 8510313.010HXP Datasheet

DirectRFQ

0313.010MXP

Littelfuse Inc.In Stock: 9080313.010MXP Datasheet

DirectRFQ

0313.010VXP

Littelfuse Inc.In Stock: 8950313.010VXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MDL-1/100-R is determined by strict equivalence across the following parameters: current rating (10 mA), voltage rating (250 V AC), fuse type (cartridge glass), response time (slow blow), and physical dimensions (0.250" Dia x 1.250" L). All identified substitutes maintain these core electrical and mechanical specifications, ensuring direct functional replacement within 3AB and 3AG holder assemblies.

Eaton Electronics Division parts (MDL and MDQ series) provide parametric equivalents with identical performance characteristics. Littelfuse Inc. 313 series components (0313.010HXP, 0313.010MXP, 0313.010VXP) offer direct manufacturer alternatives with additional technical specifications including breaking capacity, melting I²t values, and expanded operating temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MDL-1/100 or MDQ-1/100

Both MDL-1/100 and MDQ-1/100 are active Eaton Electronics Division products with identical electrical and mechanical specifications to the obsolete MDL-1/100-R. MDL-1/100 carries CSA and UL approval certifications. MDQ-1/100 also carries CSA and UL approval certifications. These parts provide direct functional replacement with established supply availability and regulatory compliance documentation.

Secondary Recommendation: Littelfuse 0313.010HXP, 0313.010MXP, or 0313.010VXP

The Littelfuse 313 series components (0313.010HXP, 0313.010MXP, 0313.010VXP) are active alternatives from a different manufacturer. All three variants maintain identical core electrical specifications (10 mA, 250 V AC, slow-blow cartridge glass fuse) and physical dimensions. These parts carry CE, CSA, and UL certifications. The 0313.010HXP variant is the primary Littelfuse option, with 0313.010MXP and 0313.010VXP providing additional alternatives within the same series.

Compliance Considerations

For applications requiring RoHS compliance, MDL-1/100-R (RoHS Compliant) can be replaced with Littelfuse 0313.010HXP, 0313.010MXP, or 0313.010VXP (all ROHS3 Compliant). The Eaton BK/MDL-1/100 and BK/MDQ-1/100 variants are RoHS non-compliant and should be selected only when RoHS compliance is not a requirement.

Frequently Asked Questions (FAQ)

Q: Can MDL-1/100-R be directly replaced with MDL-1/100?

A: Yes. MDL-1/100 is an active Eaton product with identical electrical specifications (10 mA, 250 V AC), fuse type (cartridge glass), response time (slow blow), and physical dimensions (0.250" Dia x 1.250" L). Both require 3AB or 3AG holders. MDL-1/100 carries CSA and UL certifications.

Q: What is the difference between MDL-1/100 and MDQ-1/100?

A: Both parts are Eaton Electronics Division products with identical electrical and mechanical specifications. The primary difference is the series designation (MDL versus MDQ). Both are active products with CSA and UL certifications and maintain the same 10 mA, 250 V AC slow-blow cartridge glass fuse characteristics.

Q: Are Littelfuse 313 series fuses compatible with the same holders?

A: Yes. Littelfuse 0313.010HXP, 0313.010MXP, and 0313.010VXP maintain identical package specifications (3AB, 3AG, 1/4" x 1-1/4") and physical dimensions (0.250" Dia x 1.250" L), ensuring compatibility with existing 3AB and 3AG holder assemblies.

Q: What is the difference between 0313.010HXP, 0313.010MXP, and 0313.010VXP?

A: All three Littelfuse variants maintain identical electrical specifications (10 mA, 250 V AC, slow-blow cartridge glass) and physical dimensions. The part number suffix indicates internal design variations within the 313 series. All three carry CE, CSA, and UL certifications and are ROHS3 compliant.

Q: Should I use BK/MDL-1/100 or BK/MDQ-1/100 as replacements?

A: BK/MDL-1/100 and BK/MDQ-1/100 are active alternatives with identical electrical and mechanical specifications. However, these variants are RoHS non-compliant. Select these parts only when RoHS compliance is not required. For RoHS-compliant applications, use MDL-1/100, MDQ-1/100, or Littelfuse 313 series alternatives.

Q: What certifications should I verify for my application?

A: MDL-1/100 and MDQ-1/100 carry CSA and UL certifications. Littelfuse 0313.010HXP, 0313.010MXP, and 0313.010VXP carry CE, CSA, and UL certifications. Verify that the selected part's certification profile matches your application requirements before implementation.

Q: Is the operating temperature range important for substitution?

A: The operating temperature range is not specified for Eaton MDL-1/100-R, MDL-1/100, BK/MDL-1/100, MDQ-1/100, or BK/MDQ-1/100. Littelfuse 313 series components specify -55°C to 125°C operating temperature. For applications with specific temperature requirements, Littelfuse alternatives provide documented thermal performance.