MOS3C103J Equivalent & Substitute Parts

Part Overview

The MOS3C103J is a 10 kOhms ±5% 3W through-hole resistor manufactured by KOA Speer Electronics, Inc. This metal oxide film resistor features flame-proof construction and safety certification, designed for axial through-hole applications. The part is currently active in production with 1,721 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product series, allowing for procurement flexibility and supply chain continuity.

Substiute Parts

MOS3C103J

KOA Speer Electronics, Inc.In Stock: 1789MOS3C103J Datasheet

Current PartRFQ

MOS3CT631R103J

KOA Speer Electronics, Inc.In Stock: 2302MOS3CT631R103J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MOS3C103J is determined by strict equivalence across the following critical parameters:

• Resistance value: 10 kOhms
• Tolerance: ±5%
• Power rating: 3W
• Composition: Metal Oxide Film
• Package configuration: Axial through-hole
• Physical dimensions: 0.236" Dia x 0.610" L (6.00mm x 15.50mm)
• Temperature coefficient: ±300ppm/°C
• Operating temperature range: -55°C ~ 200°C
• Termination count: 2
• Regulatory compliance: ROHS3 Compliant

The identified substitute maintains all electrical specifications and mechanical compatibility. Packaging format differences (Bulk versus Cut Tape) do not affect functional equivalence and represent procurement variations only.

Parameter Comparison

Engineering Selection Recommendations

Both the MOS3C103J and MOS3CT631R103J are active production parts from KOA Speer Electronics, Inc., with identical electrical and mechanical specifications. Selection between these parts is determined by packaging requirements and supply availability:

• MOS3C103J is supplied in Bulk packaging format
• MOS3CT631R103J is supplied in Cut Tape (CT) packaging format

Both parts maintain ROHS3 compliance and are suitable for applications requiring 10 kOhms ±5% 3W metal oxide film resistors in axial configuration. The choice between these parts depends on assembly process requirements and inventory management practices rather than functional performance.

Frequently Asked Questions (FAQ)

Q: Can MOS3CT631R103J replace MOS3C103J in existing designs?

A: Yes. Both parts are electrically and mechanically identical, with matching resistance, tolerance, power rating, temperature coefficient, and operating temperature range. The only difference is packaging format (Cut Tape versus Bulk).

Q: What is the difference between Bulk and Cut Tape packaging?

A: Bulk packaging supplies loose components, while Cut Tape (CT) packaging provides components on continuous tape suitable for automated assembly equipment. Functional performance is identical.

Q: Are both parts RoHS compliant?

A: Yes. Both MOS3C103J and MOS3CT631R103J are ROHS3 compliant.

Q: Can these resistors be used interchangeably in PCB assembly?

A: Yes, provided the assembly process accommodates the packaging format. Bulk-packaged components require manual placement, while Cut Tape components integrate with automated pick-and-place systems.

Q: What is the temperature coefficient significance?

A: The ±300ppm/°C temperature coefficient indicates resistance value change across the operating temperature range of -55°C to 200°C. Both parts maintain identical temperature stability.

Q: Are there any compliance or certification differences?

A: No. Both parts share identical RoHS, REACH, and ECCN classifications.