Ohmite 90J33R Equivalent & Substitute Parts

Part Overview

The Ohmite 90J33R is a 33 Ohm, 5% tolerance, 11W through-hole axial wirewound resistor with flame retardant coating and safety features. This component is designed for applications requiring reliable power dissipation in compact form factors. The part is currently in active production status. Substitute parts may be required due to packaging preferences, compliance requirements, or inventory availability across different distribution channels.

Substiute Parts

90J33R

OhmiteIn Stock: 111390J33R Datasheet

Current PartRFQ

90J33RE

OhmiteIn Stock: 97590J33RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 90J33RE qualifies as a parametric equivalent to the 90J33R based on the following critical substitution criteria:

• Electrical Parameters: Identical resistance value (33 Ohms), tolerance (±5%), and power rating (11W)
• Physical Specifications: Matching axial package configuration and dimensions (0.343" Dia x 1.811" L)
• Thermal Characteristics: Identical temperature coefficient (±30ppm/°C)
• Material Composition: Same wirewound construction with flame retardant coating and safety features
• Termination Configuration: Both parts feature 2 terminations

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

Parameter Comparison

Engineering Selection Recommendations

Both the 90J33R and 90J33RE are active production components from Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on the following criteria:

90J33R is appropriate for applications where standard packaging is preferred or where RoHS non-compliant components are acceptable per design requirements.

90J33RE is the preferred selection for applications requiring ROHS3 compliance or where bulk packaging format aligns with procurement and assembly workflows. The improved RoHS compliance status and MSL rating of 1 (Unlimited) provide enhanced environmental and moisture handling characteristics.

Both parts are electrically and mechanically interchangeable in circuit design and layout.

Frequently Asked Questions (FAQ)

Q: Are the 90J33R and 90J33RE electrically interchangeable?

A: Yes. Both parts share identical resistance (33 Ohms), tolerance (±5%), power rating (11W), temperature coefficient (±30ppm/°C), and wirewound composition. They are direct electrical equivalents.

Q: What is the difference between these two part numbers?

A: The primary differences are packaging format (standard vs. bulk) and RoHS compliance status. The 90J33R is RoHS non-compliant, while the 90J33RE is ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Can I use 90J33RE as a direct replacement for 90J33R in PCB assembly?

A: Yes. Both parts have identical axial package dimensions (0.343" Dia x 1.811" L) and termination configuration (2 terminations). No PCB layout or footprint modifications are required.

Q: Which part should I specify for new designs?

A: For new designs, the 90J33RE is recommended due to ROHS3 compliance and improved moisture sensitivity rating, unless specific design constraints require the 90J33R.

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

A: No. Both parts have identical temperature coefficient (±30ppm/°C) and power dissipation characteristics (11W). Thermal performance is equivalent.