Ohmite 20J7R5 7.5 Ohm 10W Axial Wirewound Resistor

Part Overview

The Ohmite 20J7R5 is a 7.5 Ohm, 10W through-hole axial wirewound resistor with flame retardant coating and safety features. This component is classified as Active product status and is currently in stock. Alternative part numbers may be required due to packaging differences, compliance requirements, or inventory considerations in procurement workflows.

Substiute Parts

20J7R5

OhmiteIn Stock: 67420J7R5 Datasheet

Current PartRFQ

20J7R5E

OhmiteIn Stock: 125320J7R5E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Ohmite 20J7R5 is determined by the following critical parameters:

• Resistance value: 7.5 Ohms
• Tolerance: ±5%
• Power rating: 10W
• Composition: Wirewound
• Package configuration: Axial
• Temperature coefficient: ±50ppm/°C
• Physical dimensions: 0.394" Dia x 1.858" L (10.00mm x 47.20mm)
• Termination count: 2
• Flame retardant and safety features

The substitute part 20J7R5E maintains identical electrical and mechanical specifications, with the primary distinction being packaging format (Bulk versus standard packaging) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the 20J7R5 and 20J7R5E are functionally equivalent for circuit applications requiring 7.5 Ohm, 10W axial wirewound resistors. Selection between these parts should be based on:

• RoHS compliance requirements: The 20J7R5E meets ROHS3 compliance, while the 20J7R5 is RoHS non-compliant. Applications subject to RoHS directives must use the 20J7R5E.
• Packaging requirements: The 20J7R5E is supplied in Bulk packaging, whereas the 20J7R5 uses standard packaging. Procurement workflows and assembly processes may dictate packaging preference.
• Inventory availability: The 20J7R5E has higher stock levels (1168 Pcs) compared to the 20J7R5 (645 Pcs).

Both parts share identical electrical performance characteristics, physical dimensions, and safety features.

Frequently Asked Questions (FAQ)

Q: Can the 20J7R5E be used as a direct replacement for the 20J7R5?

A: Yes. Both parts are electrically and mechanically identical, with matching resistance values, tolerance, power ratings, temperature coefficients, and physical dimensions. The primary differences are packaging format and RoHS compliance status.

Q: What is the difference between the standard packaging and Bulk packaging?

A: Packaging format refers to the quantity and presentation method for component delivery. Standard packaging typically includes smaller quantities with protective packaging, while Bulk packaging supplies larger quantities with minimal individual component packaging. Both formats contain identical components.

Q: Does RoHS compliance affect circuit performance?

A: RoHS compliance relates to material composition and environmental regulations, not electrical performance. Both the 20J7R5 and 20J7R5E deliver identical electrical characteristics. RoHS compliance is a regulatory and procurement consideration.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the 20J7R5 and 20J7R5E measure 0.394" Dia x 1.858" L (10.00mm x 47.20mm) and are configured as axial components with 2 terminations. They are mechanically interchangeable.

Q: Which part should be selected for new designs?

A: For new designs subject to RoHS directives or environmental compliance requirements, the 20J7R5E is the appropriate selection. For legacy systems or applications without RoHS requirements, either part is suitable based on availability and packaging needs.