Ohmite 21J2K5 Equivalent & Substitute Parts

Part Overview

The Ohmite 21J2K5 is a 2.5 kOhms ±5% 1W through-hole resistor with axial leads, featuring wirewound construction and flame retardant coating for safety applications. This component is classified as Active product status with 1006 units currently in stock. Equivalent parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.

Substiute Parts

21J2K5

OhmiteIn Stock: 105221J2K5 Datasheet

Current PartRFQ

21J2K5E

OhmiteIn Stock: 113521J2K5E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Ohmite 21J2K5 is determined by strict equivalence across the following critical parameters:

• Resistance value: 2.5 kOhms
• Tolerance: ±5%
• Power rating: 1W
• Composition: Wirewound
• Package configuration: Axial
• Physical dimensions: 0.157" Dia x 0.421" L (4.00mm x 10.70mm)
• Temperature coefficient: ±30ppm/°C
• Features: Flame retardant coating and safety designation

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes. Packaging format (bulk versus standard) does not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The Ohmite 21J2K5E serves as a direct parametric equivalent to the 21J2K5, with identical electrical performance and mechanical compatibility. Both components are Active status products from the same manufacturer and series.

The primary distinction between these parts is regulatory compliance status. The 21J2K5E achieves RoHS compliance, while the 21J2K5 is RoHS non-compliant. For applications subject to RoHS directives or customer specifications requiring RoHS-compliant components, the 21J2K5E is the appropriate selection. For applications without RoHS requirements, either part satisfies the electrical and mechanical specifications.

Both parts carry EAR99 export classification and are suitable for equivalent circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the 21J2K5E replace the 21J2K5 in existing designs?

A: Yes. The 21J2K5E is a parametric equivalent with identical resistance value, tolerance, power rating, wirewound composition, axial package configuration, physical dimensions, and temperature coefficient. Direct substitution is supported for all electrical and mechanical requirements.

Q: What is the difference between the 21J2K5 and 21J2K5E?

A: The primary difference is RoHS compliance status. The 21J2K5E is RoHS compliant; the 21J2K5 is RoHS non-compliant. All electrical and mechanical parameters are identical. Packaging format differs (bulk versus standard), but this does not affect component performance or circuit compatibility.

Q: Are there any physical dimension differences between these parts?

A: No. Both the 21J2K5 and 21J2K5E share identical physical dimensions of 0.157" diameter by 0.421" length (4.00mm x 10.70mm). Axial lead configuration and termination count are identical, ensuring PCB layout and assembly compatibility.

Q: Which part should I select for RoHS-regulated applications?

A: The 21J2K5E is RoHS compliant and is the appropriate selection for applications subject to RoHS directives or customer specifications requiring RoHS compliance.

Q: Do these parts have the same temperature coefficient?

A: Yes. Both the 21J2K5 and 21J2K5E have a temperature coefficient of ±30ppm/°C, ensuring equivalent thermal performance across the operating range.