Ohmite 45F30K Equivalent & Substitute Parts

Part Overview

The Ohmite 45F30K is a 30 kOhms ±1% 5W through-hole resistor with axial wirewound construction, part of the Ohmicone® 40 series. This component is currently active in production. Finding equivalent and substitute parts may be necessary due to inventory availability, packaging requirements, or compliance specifications for new designs.

Substiute Parts

45F30K

OhmiteIn Stock: 65645F30K Datasheet

Current PartRFQ

45F30KE

OhmiteIn Stock: 94745F30KE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 45F30K are determined by matching the following critical electrical and mechanical parameters:

• Resistance value: 30 kOhms
• Tolerance: ±1%
• Power rating: 5W
• Composition: Wirewound
• Package configuration: Axial
• Temperature coefficient: ±20ppm/°C
• Physical dimensions: 0.343" Dia x 0.937" L (8.70mm x 23.80mm)
• Termination count: 2

The 45F30KE meets all these criteria and is classified as a parametric equivalent within the Ohmicone® 40 series.

Parameter Comparison

Engineering Selection Recommendations

The 45F30KE is a direct parametric equivalent to the 45F30K, with identical electrical and mechanical specifications. The primary distinction is compliance status: the 45F30KE is ROHS3 compliant, while the 45F30K is RoHS non-compliant. Both parts maintain REACH Unaffected status and share the same ECCN and HTSUS classifications.

Selection between these parts should be based on regulatory requirements for the end application. Applications requiring RoHS3 compliance must use the 45F30KE. Both parts are active in production and available in inventory.

Frequently Asked Questions (FAQ)

Q: Can the 45F30KE be used as a direct replacement for the 45F30K?

A: Yes. The 45F30KE is electrically and mechanically identical to the 45F30K. Both parts have the same resistance value (30 kOhms), tolerance (±1%), power rating (5W), temperature coefficient (±20ppm/°C), and axial package dimensions (0.343" Dia x 0.937" L). The parts are interchangeable from a functional standpoint.

Q: What is the difference between these two parts?

A: The primary difference is RoHS compliance status. The 45F30KE is ROHS3 compliant, while the 45F30K is RoHS non-compliant. All other electrical, mechanical, and regulatory parameters are identical.

Q: Which part should I specify for a new design?

A: Specify the 45F30KE if your application or market requires RoHS3 compliance. Specify the 45F30K only if RoHS compliance is not a requirement and the non-compliant version is acceptable for your application.

Q: Are there any packaging differences?

A: The 45F30K is supplied in standard packaging, while the 45F30KE is supplied in bulk packaging. Both parts have identical physical dimensions and termination configuration.

Q: Do these parts have the same temperature performance?

A: Yes. Both parts have a temperature coefficient of ±20ppm/°C and are rated for the same operating temperature range.