Ohmite 90J20R Equivalent & Substitute Parts

Part Overview

The Ohmite 90J20R is a 20 Ohm, 11W through-hole axial wirewound resistor with flame retardant coating and safety features. This component is classified as Active product status and is designed for applications requiring high power dissipation in a compact axial package. Substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across the allowed parameter set.

Substiute Parts

90J20R

OhmiteIn Stock: 99590J20R Datasheet

Current PartRFQ

90J20RE

OhmiteIn Stock: 98690J20RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 90J20RE qualifies as a parametric equivalent to the 90J20R based on the following criteria:

• Identical resistance value: 20 Ohms
• Identical tolerance: ±5%
• Identical power rating: 11W
• Identical composition: Wirewound
• Identical package type: Axial
• Identical temperature coefficient: ±30ppm/°C
• Identical physical dimensions: 0.343" Dia x 1.811" L (8.70mm x 46.00mm)
• Identical number of terminations: 2
• Identical features: Flame Retardant Coating, Safety

The primary difference between these parts is packaging configuration and RoHS compliance status, which do not affect electrical or mechanical interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 90J20R and 90J20RE are Active status components manufactured by Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on compliance requirements and procurement constraints:

The 90J20RE offers ROHS3 compliance, making it suitable for applications subject to RoHS regulations. The 90J20R is RoHS non-compliant and should be selected only when RoHS compliance is not a requirement. Both parts are functionally interchangeable in circuit design and layout, with no performance differences in electrical operation or thermal characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 90J20RE be used as a direct replacement for the 90J20R?

A: Yes. The 90J20RE is electrically and mechanically identical to the 90J20R. All critical parameters—resistance value, tolerance, power rating, temperature coefficient, and physical dimensions—are identical. The parts are directly interchangeable in circuit applications.

Q: What is the difference between the 90J20R and 90J20RE?

A: The primary differences are packaging configuration (standard vs. bulk) and RoHS compliance status. The 90J20RE is ROHS3 compliant, while the 90J20R is RoHS non-compliant. These differences do not affect electrical performance or mechanical fit.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts have identical power ratings (11W), temperature coefficients (±30ppm/°C), and thermal characteristics. Performance in circuit operation is equivalent.

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

A: Selection depends on regulatory and compliance requirements. For applications requiring RoHS compliance, specify the 90J20RE. For applications without RoHS requirements, either part is acceptable based on availability and procurement constraints.

Q: Do these parts have the same physical footprint?

A: Yes. Both parts have identical dimensions of 0.343" Dia x 1.811" L (8.70mm x 46.00mm) and use the same axial package type. PCB layout and mechanical mounting are identical.