Ohmite 30J4R7 Equivalent & Substitute Parts

Part Overview

The Ohmite 30J4R7 is a 4.7 Ohm, 5% tolerance, 10W through-hole resistor with axial wirewound construction. This component is part of the High Energy Wirewound series and maintains active product status. Substitute parts are identified to provide alternative sourcing options while maintaining identical electrical and mechanical specifications.

Substiute Parts

30J4R7

OhmiteIn Stock: 123030J4R7 Datasheet

Current PartRFQ

30J4R7E

OhmiteIn Stock: 117630J4R7E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 30J4R7 are qualified based on the following critical parameters:

• Resistance value: 4.7 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 10W (exact match required)
• Composition: Wirewound (exact match required)
• Package configuration: Axial (exact match required)
• Physical dimensions: 0.406" Dia x 1.843" L (exact match required)
• Termination count: 2 (exact match required)

The substitute part 30J4R7E meets all electrical and mechanical criteria for direct substitution with the primary part number 30J4R7.

Parameter Comparison

Engineering Selection Recommendations

Both the 30J4R7 and 30J4R7E are active products from Ohmite with identical electrical and mechanical specifications. The primary distinction is regulatory compliance: the 30J4R7E carries ROHS3 compliance, while the 30J4R7 is RoHS non-compliant. Selection between these parts should be based on application regulatory requirements and supply chain constraints. Both parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can the 30J4R7E replace the 30J4R7 in existing designs?

A: Yes. The 30J4R7E provides identical electrical performance and physical form factor. The primary difference is RoHS compliance status. Designs requiring RoHS3 compliance should specify the 30J4R7E.

Q: Are there any dimensional differences between these parts?

A: No. Both parts share identical dimensions of 0.406" diameter by 1.843" length (10.30mm x 46.80mm), ensuring compatibility with existing PCB layouts and mechanical assemblies.

Q: What is the significance of the packaging difference?

A: The 30J4R7 is supplied in standard packaging, while the 30J4R7E is supplied in bulk packaging. This affects order quantities and handling but does not impact component performance or compatibility.

Q: Are both parts currently available?

A: Yes. Both parts maintain active product status with documented inventory levels.