Ohmite 90J8R2 8.2 Ohm 11W Axial Wirewound Resistor Equivalent & Substitute Parts

Part Overview

The Ohmite 90J8R2 is an 8.2 Ohm, 11W through-hole axial wirewound resistor with flame retardant coating and safety features. This component is classified as Active product status and is widely used in power dissipation applications requiring high wattage tolerance and thermal stability. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, packaging preferences, or compliance requirements.

Substiute Parts

90J8R2

OhmiteIn Stock: 87390J8R2 Datasheet

Current PartRFQ

90J8R2E

OhmiteIn Stock: 119890J8R2E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 90J8R2 are qualified based on the following critical parameters:

• Resistance value: 8.2 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 11W (exact match required)
• Composition: Wirewound (exact match required)
• Package type: Axial (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Physical dimensions: 0.343" Dia x 1.811" L (exact match required)
• Termination count: 2 (exact match required)
• Features: Flame Retardant Coating, Safety (exact match required)

The 90J8R2E qualifies as a parametric equivalent substitute because it maintains all critical electrical and mechanical specifications identical to the main part while differing only in packaging configuration and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 90J8R2 and 90J8R2E are Active status components from Ohmite's Series 90 wirewound resistor line. Selection between these parts should be based on the following criteria:

90J8R2: Select this part number when standard packaging is required and RoHS non-compliant components are acceptable for the application.

90J8R2E: Select this part number when bulk packaging is preferred or when ROHS3 compliance is mandated by design specifications or regulatory requirements. This variant provides equivalent electrical performance with enhanced environmental compliance certification.

Both parts share identical electrical characteristics, thermal performance, and mechanical dimensions, ensuring direct functional interchangeability in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the 90J8R2E be used as a direct replacement for the 90J8R2?

A: Yes. The 90J8R2E is a parametric equivalent with identical resistance value (8.2 Ohms), tolerance (±5%), power rating (11W), temperature coefficient (±100ppm/°C), composition (Wirewound), package type (Axial), and physical dimensions (0.343" Dia x 1.811" L). The parts differ only in packaging configuration and RoHS compliance status.

Q: What is the difference between the standard 90J8R2 and the 90J8R2E packaging?

A: The 90J8R2 is supplied in standard packaging, while the 90J8R2E is supplied in bulk packaging. Both contain identical components with the same electrical and mechanical specifications.

Q: Does the RoHS compliance difference affect circuit performance?

A: No. RoHS compliance status reflects manufacturing and material sourcing standards but does not alter the electrical performance, thermal characteristics, or mechanical properties of the resistor. Selection should be based on application regulatory requirements.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the 90J8R2 and 90J8R2E measure 0.343" diameter by 1.811" length (8.70mm x 46.00mm) and are compatible with identical PCB layouts and mounting configurations.

Q: What is the temperature coefficient specification, and why is it important?

A: Both parts have a temperature coefficient of ±100ppm/°C, which defines the resistance change per degree Celsius of temperature variation. This specification is critical for applications requiring stable resistance performance across operating temperature ranges.