Equivalent & Substitute Parts for EY103KE

Part Overview

The EY103KE is a 10 kOhm, 2.5W axial through-hole resistor manufactured by Ohmite with ±10% tolerance and ceramic composition. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The EY103KE features moisture-resistant ceramic construction suitable for general-purpose resistive applications in the -40°C to 110°C operating range.

Substiute Parts

EY103KE

OhmiteIn Stock: 873EY103KE Datasheet

Current PartRFQ

PR03000201002JAC00

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 7522PR03000201002JAC00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EY103KE is determined by the following critical parameters:

• Resistance Value: Must be 10 kOhms
• Package Type: Must be Axial through-hole configuration
• Power Rating: Must meet or exceed 2.5W
• Tolerance: Should be ±10% or tighter
• Compliance: Must maintain ROHS3 compliance

The PR03000201002JAC00 qualifies as a direct substitute based on matching resistance value, axial package configuration, and exceeding the power rating requirement at 3W. The substitute offers improved tolerance (±5% versus ±10%) and extended operating temperature range (-55°C to 155°C versus -40°C to 110°C), providing enhanced performance margins for the same functional application.

Parameter Comparison

Engineering Selection Recommendations

The PR03000201002JAC00 is the qualified substitute for the obsolete EY103KE. Both components maintain ROHS3 compliance and are suitable for axial through-hole mounting. The substitute part is currently in active production status with 7496 units available in inventory, ensuring supply chain continuity.

The PR03000201002JAC00 provides superior electrical characteristics including tighter tolerance (±5%), higher power rating (3W), and extended operating temperature range (-55°C to 155°C). The metal film composition offers improved temperature coefficient stability (±250 ppm/°C) compared to the ceramic composition of the original part.

Frequently Asked Questions (FAQ)

Q: Can the PR03000201002JAC00 directly replace the EY103KE in existing designs?

A: Yes. Both components share identical 10 kOhm resistance values and axial package configurations. The substitute meets all minimum electrical requirements with enhanced performance specifications.

Q: What is the physical size difference between these components?

A: The EY103KE measures 0.370" diameter × 1.819" length (9.40mm × 46.20mm). The PR03000201002JAC00 measures 0.205" diameter × 0.657" length (5.20mm × 16.70mm). The substitute is significantly smaller and may require PCB layout verification for existing designs.

Q: Are there tolerance differences that affect circuit performance?

A: The PR03000201002JAC00 provides ±5% tolerance versus the EY103KE's ±10% tolerance. This tighter tolerance improves circuit accuracy and reduces tolerance stack-up in precision applications.

Q: Does the composition change from ceramic to metal film affect reliability?

A: Both compositions are suitable for general-purpose resistive applications. The metal film construction of the substitute offers superior temperature coefficient stability and flame retardant coating for enhanced safety characteristics.

Q: What is the temperature operating range difference?

A: The EY103KE operates from -40°C to 110°C. The PR03000201002JAC00 extends this range to -55°C to 155°C, providing broader environmental compatibility for demanding applications.