MOSX3CUR10J Equivalent & Substitute Parts

Part Overview

The MOSX3CUR10J is a 100 mOhms ±5% 3W through-hole resistor manufactured by KOA Speer Electronics, Inc. in the MOS series. This axial metal oxide film resistor features flame-proof and safety characteristics, designed for applications requiring low-resistance, high-power dissipation in through-hole configurations. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category and specifications.

Substiute Parts

MOSX3CUR10J

KOA Speer Electronics, Inc.In Stock: 780MOSX3CUR10J Datasheet

Current PartRFQ

MOSX3CT521AR10J

KOA Speer Electronics, Inc.In Stock: 1533MOSX3CT521AR10J Datasheet

Parametric EquivalentRFQ

MOSX3CT631RR10J

KOA Speer Electronics, Inc.In Stock: 3526MOSX3CT631RR10J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MOSX3CUR10J are identified as parametric equivalents based on the following criteria:

• Resistance value: 100 mOhms
• Tolerance: ±5%
• Power rating: 3W
• Composition: Metal Oxide Film
• Package: Axial through-hole
• Operating temperature range: -55°C to 200°C
• Temperature coefficient: ±300 ppm/°C
• Physical dimensions: 0.236" Dia x 0.610" L (6.00mm x 15.50mm)
• Termination count: 2
• Compliance: ROHS3 Compliant, REACH Unaffected

The identified substitutes maintain all critical electrical and mechanical parameters. Variations in surface treatment (flame-proof versus flame-retardant coating) do not affect functional equivalency within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

All three parts—MOSX3CUR10J, MOSX3CT521AR10J, and MOSX3CT631RR10J—are active products from KOA Speer Electronics, Inc. with identical electrical specifications and physical dimensions. Each part maintains ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications.

Selection between these parts is based on availability and inventory levels. MOSX3CT631RR10J offers the highest inventory availability at 3470 pieces, followed by MOSX3CT521AR10J at 1522 pieces, and MOSX3CUR10J at 768 pieces. The minor difference in surface treatment (flame-proof versus flame-retardant coating) does not affect electrical performance or thermal characteristics within the specified operating range.

Frequently Asked Questions (FAQ)

Q: Can MOSX3CT521AR10J and MOSX3CT631RR10J be used interchangeably with MOSX3CUR10J?

A: Yes. All three parts share identical electrical parameters (100 mOhms ±5%, 3W), thermal characteristics (±300 ppm/°C, -55°C to 200°C), physical dimensions (0.236" Dia x 0.610" L), and compliance certifications (ROHS3, REACH unaffected). They are direct parametric equivalents.

Q: What is the difference between flame-proof and flame-retardant coating?

A: Both designations indicate safety features in the metal oxide film composition. The difference lies in surface treatment methodology, but both meet the same electrical and thermal performance specifications provided in this reference.

Q: Are all three parts available in the same packaging format?

A: Yes. All three parts are supplied in Cut Tape (CT) packaging with identical axial through-hole configuration and 2-termination design.

Q: Which part should be selected for new designs?

A: Selection should be based on current inventory availability and supply chain requirements. All three parts are active products with equivalent performance characteristics and regulatory compliance.

Q: Do these parts require any special handling or storage considerations?

A: Moisture Sensitivity Level (MSL) is Not Applicable for all three parts, indicating standard handling and storage conditions are suitable.