Ohmite 40J10K Equivalent & Substitute Parts

Part Overview

The Ohmite 40J10K is a 10 kOhms ±5% 10W through-hole resistor with axial wirewound composition, part of the Ohmicone® 40 series. This component is designed for applications requiring precision power dissipation in axial package format. The part is currently active in production. Substitute parts may be required due to packaging preferences, compliance requirements, or inventory availability across different distribution channels.

Substiute Parts

40J10K

OhmiteIn Stock: 107040J10K Datasheet

Current PartRFQ

40J10KE

OhmiteIn Stock: 108640J10KE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 40J10KE qualifies as a parametric equivalent to the 40J10K based on identical electrical and mechanical specifications. Substitution is valid when the following criteria are met:

• Resistance value: 10 kOhms (exact match)
• Tolerance: ±5% (exact match)
• Power rating: 10W (exact match)
• Composition: Wirewound (exact match)
• Package: Axial (exact match)
• Temperature coefficient: ±20ppm/°C (exact match)
• Physical dimensions: 0.406" Dia x 1.902" L (exact match)
• Termination count: 2 (exact match)

The primary difference between these parts is packaging format (standard vs. bulk) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the 40J10K and 40J10KE are active production parts from Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on compliance requirements and packaging needs:

The 40J10K is suitable for applications where RoHS non-compliant components are acceptable and standard packaging is preferred.

The 40J10KE is the appropriate choice for applications requiring ROHS3 compliance. This part maintains all electrical and mechanical equivalence while meeting enhanced environmental and material restriction standards.

Both parts carry identical REACH and ECCN classifications, ensuring equivalent regulatory treatment in export and supply chain contexts.

Frequently Asked Questions (FAQ)

Q: Are the 40J10K and 40J10KE electrically interchangeable?

A: Yes. Both parts have identical resistance (10 kOhms), tolerance (±5%), power rating (10W), temperature coefficient (±20ppm/°C), and composition (wirewound). They perform identically in circuit applications.

Q: What is the difference between these two parts?

A: The primary differences are packaging format and RoHS compliance status. The 40J10KE is ROHS3 compliant, while the 40J10K is RoHS non-compliant. Both are supplied in axial package format with identical physical dimensions.

Q: Can I use the 40J10KE as a direct replacement for the 40J10K?

A: Yes, the 40J10KE is a direct parametric equivalent. All electrical specifications, mechanical dimensions, and termination characteristics are identical. Selection depends on compliance requirements for your application.

Q: Do these parts have the same physical footprint?

A: Yes. Both parts have identical dimensions of 0.406" diameter by 1.902" length (10.30mm x 48.30mm), ensuring identical PCB layout compatibility.

Q: Which part should I specify for new designs?

A: For new designs, specify the 40J10KE if ROHS3 compliance is required by your application or regulatory environment. Both parts are active production items with equivalent availability.