Equivalent & Substitute Parts for Ohmite 20J33R

Part Overview

The Ohmite 20J33R is a 33 Ohm, 5% tolerance, 10W axial wirewound resistor with flame retardant coating and safety features. This component is classified as Active product status and is designed for through-hole applications requiring reliable power dissipation in industrial and commercial circuits. Substitute parts are identified to address packaging variations, compliance requirements, and inventory availability while maintaining identical electrical and mechanical specifications.

Substiute Parts

20J33R

OhmiteIn Stock: 99820J33R Datasheet

Current PartRFQ

20J33RE

OhmiteIn Stock: 95120J33RE Datasheet

DirectRFQ

20J33RE

OhmiteIn Stock: 95120J33RE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Ohmite 20J33R is based on strict equivalence of the following electrical and mechanical parameters:

• Resistance value: 33 Ohms
• Tolerance: ±5%
• Power dissipation: 10W
• Composition: Wirewound
• Package configuration: Axial through-hole
• Physical dimensions: 0.394" Dia x 1.858" L (10.00mm x 47.20mm)
• Temperature coefficient: ±30ppm/°C
• Features: Flame retardant coating with safety designation

The identified substitute part maintains all critical electrical characteristics and mechanical form factor. Variations in packaging format (Bulk vs. standard) and compliance certifications do not affect functional interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 20J33R and 20J33RE are Active status components from Ohmite's Series 20 wirewound resistor line. The primary distinction between these parts is compliance certification and packaging format.

The 20J33R is RoHS non-compliant, while the 20J33RE meets RoHS Compliance requirements. Selection between these parts depends on regulatory requirements applicable to the end application. For applications subject to RoHS directives or equivalent environmental compliance standards, the 20J33RE is the appropriate selection. For applications without such compliance mandates, either part provides equivalent electrical performance.

Both parts maintain identical electrical specifications, mechanical dimensions, and thermal characteristics. Packaging format differences (standard vs. bulk) do not affect circuit functionality and relate only to supply chain and inventory management considerations.

Frequently Asked Questions (FAQ)

Q: Are the 20J33R and 20J33RE electrically identical?

A: Yes. Both parts have identical resistance (33 Ohms), tolerance (±5%), power rating (10W), temperature coefficient (±30ppm/°C), and composition (wirewound). They are functionally equivalent in circuit applications.

Q: What is the difference between these substitute parts?

A: The primary differences are RoHS compliance status (20J33RE is RoHS Compliant; 20J33R is non-compliant) and packaging format (20J33RE is supplied in Bulk; 20J33R in standard packaging). Electrical and mechanical specifications are identical.

Q: Can I use 20J33RE as a direct replacement for 20J33R?

A: Yes, the 20J33RE is a direct substitute for the 20J33R. Physical dimensions, mounting configuration, and electrical performance are identical. Selection should be based on compliance requirements and packaging needs.

Q: Do these parts have the same physical dimensions?

A: Yes. Both parts measure 0.394" Dia x 1.858" L (10.00mm x 47.20mm) and use identical axial through-hole configuration with 2 terminations.

Q: What does RoHS Compliant mean for the 20J33RE?

A: RoHS Compliance indicates the part meets Restriction of Hazardous Substances directives, limiting the use of specific hazardous materials. This certification is required for many applications in regulated markets.

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

A: Both parts operate with the same temperature coefficient (±30ppm/°C) and feature flame retardant coating with safety designation. Environmental performance characteristics are equivalent.