Equivalent & Substitute Parts for Ohmite 33J30RE

Part Overview

The Ohmite 33J30RE is a 3W wirewound axial resistor with 30 Ohms resistance and ±5% tolerance. This component is designed for through-hole applications requiring reliable power dissipation in high-energy circuits. The part maintains Active product status and is RoHS compliant, making it suitable for modern electronic assemblies. Substitute parts are identified when packaging or compliance requirements differ while maintaining identical electrical and mechanical specifications.

Substiute Parts

33J30RE

OhmiteIn Stock: 109333J30RE Datasheet

Current PartRFQ

33J30R

OhmiteIn Stock: 101433J30R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 33J30R qualifies as a parametric equivalent to the 33J30RE based on the following criteria:

• Identical resistance value: 30 Ohms
• Identical tolerance: ±5%
• Identical power rating: 3W
• Identical composition: Wirewound
• Identical package type: Axial
• Identical physical dimensions: 0.217" Dia x 0.594" L (5.50mm x 15.10mm)
• Identical number of terminations: 2

The primary difference is packaging format (Box versus Bulk) and RoHS compliance status. Both parts are manufactured by Ohmite and share the same electrical and mechanical specifications, allowing direct substitution in applications where packaging and compliance requirements align.

Parameter Comparison

Engineering Selection Recommendations

Both the 33J30RE and 33J30R are Active products from Ohmite with identical electrical and mechanical specifications. Selection between these parts depends on specific application requirements:

The 33J30RE is the appropriate choice for applications requiring RoHS compliance certification or for assemblies subject to regulatory restrictions on hazardous substances.

The 33J30R is suitable for applications where RoHS compliance is not a requirement and bulk packaging is acceptable for manufacturing or inventory management purposes.

Frequently Asked Questions (FAQ)

Q: Can the 33J30R replace the 33J30RE in a circuit design?

A: Yes, from an electrical and mechanical standpoint. Both parts have identical resistance (30 Ohms), tolerance (±5%), power rating (3W), composition (wirewound), package type (axial), and physical dimensions. The substitution is valid if the application does not require RoHS compliance certification.

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

A: Box packaging typically includes individual component packaging suitable for smaller quantities or controlled inventory environments. Bulk packaging is used for larger quantity orders where components are supplied without individual packaging, reducing material costs and storage space.

Q: Does the RoHS non-compliance of the 33J30R affect electrical performance?

A: No. RoHS status relates to material composition and regulatory compliance, not electrical performance. Both parts deliver identical electrical characteristics. RoHS compliance is a regulatory and environmental consideration, not a performance specification.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the 33J30RE and 33J30R measure 0.217" Dia x 0.594" L (5.50mm x 15.10mm), ensuring identical PCB footprint and mounting compatibility.

Q: What applications require the RoHS-compliant version?

A: Applications subject to EU Directive 2002/95/EC, consumer electronics regulations, or customer specifications mandating RoHS compliance require the 33J30RE. Industrial and legacy applications without such requirements may use either part.