Equivalent & Substitute Parts for Ohmite 45J2K2

Part Overview

The Ohmite 45J2K2 is a 2.2 kOhms ±5% 5W through-hole resistor with axial wirewound construction, part of the Ohmicone® 40 series. This component is classified as Active product status and is currently in stock. Alternative part numbers may be required due to packaging specifications, compliance requirements, or inventory availability in different distribution channels.

Substiute Parts

45J2K2

OhmiteIn Stock: 90245J2K2 Datasheet

Current PartRFQ

45J2K2E

OhmiteIn Stock: 110245J2K2E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 45J2K2E qualifies as a parametric equivalent based on identical electrical and mechanical specifications. Substitution is valid when the following criteria are met:

• Resistance value: 2.2 kOhms (exact match)
• Tolerance: ±5% (exact match)
• Power rating: 5W (exact match)
• Composition: Wirewound (exact match)
• Package: Axial (exact match)
• Temperature coefficient: ±20ppm/°C (exact match)
• Physical dimensions: 0.343" Dia x 0.937" L (exact match)
• Termination count: 2 (exact match)

The primary distinction between the main part and substitute is packaging format and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the 45J2K2 and 45J2K2E are Active status components suitable for direct substitution based on electrical and mechanical parameters. Selection between these parts should be determined by:

• RoHS compliance requirements: The 45J2K2E meets ROHS3 compliance, while the 45J2K2 is RoHS non-compliant. Applications subject to RoHS directives require the 45J2K2E.
• Packaging requirements: The 45J2K2E is supplied in bulk packaging, while the 45J2K2 uses standard packaging. Procurement volume and handling procedures may influence part selection.
• Regulatory and supply chain considerations: Both parts carry identical ECCN (EAR99) and HTSUS (8533.21.0080) classifications.

Frequently Asked Questions (FAQ)

Q: Can the 45J2K2E replace the 45J2K2 in existing designs?

A: Yes. The 45J2K2E is electrically and mechanically identical to the 45J2K2. All critical parameters including resistance value, tolerance, power rating, composition, package type, and physical dimensions are identical. Substitution is valid for any application where the original part was specified.

Q: What is the difference between these two part numbers?

A: The primary differences are packaging format and RoHS compliance status. The 45J2K2E is supplied in bulk packaging and meets ROHS3 compliance standards, while the 45J2K2 uses standard packaging and is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any dimensional or footprint differences?

A: No. Both parts have identical physical dimensions of 0.343" diameter by 0.937" length (8.70mm x 23.80mm). PCB layout and mechanical mounting are identical.

Q: Which part should I specify for new designs?

A: Selection depends on regulatory requirements. For applications requiring RoHS compliance, specify the 45J2K2E. For applications without RoHS requirements, either part is suitable based on availability and packaging needs.

Q: Do these parts have different temperature performance?

A: No. Both parts have identical temperature coefficient specifications of ±20ppm/°C, ensuring equivalent thermal performance across operating ranges.