Equivalent & Substitute Parts for Ohmite 25JR33

Part Overview

The Ohmite 25JR33 is a 330 mOhms ±5% 5W through-hole axial wirewound resistor with flame retardant coating and safety features. This component is classified as Active product status and is suitable for applications requiring precision current-sensing or low-resistance power dissipation in electronic circuits. Substitute parts are identified based on matching electrical specifications, mechanical form factor, and compliance certifications to ensure direct interchangeability in circuit designs.

Substiute Parts

25JR33

OhmiteIn Stock: 74925JR33 Datasheet

Current PartRFQ

25JR33E

OhmiteIn Stock: 147725JR33E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 25JR33 are qualified based on the following critical parameters:

• Electrical Match: Resistance value of 330 mOhms with ±5% tolerance and 5W power rating
• Form Factor Match: Axial through-hole package with identical physical dimensions (0.276" Dia × 1.016" L)
• Composition Match: Wirewound construction with flame retardant coating and safety features
• Termination Match: 2-terminal axial lead configuration
• Series Compatibility: Series 20 classification

The substitute part 25JR33E meets all these criteria and is therefore electrically and mechanically interchangeable with the main part number.

Parameter Comparison

Engineering Selection Recommendations

Both the 25JR33 and 25JR33E are Active product status components manufactured by Ohmite. The primary distinction between these parts is compliance certification and packaging configuration.

The 25JR33E offers ROHS3 compliance, making it suitable for applications subject to RoHS3 regulatory requirements. The 25JR33 is RoHS non-compliant and should be selected only when RoHS compliance is not a design constraint.

Both parts carry identical REACH Unaffected and EAR99 ECCN classifications. Packaging differs between standard and bulk configurations; selection depends on procurement and inventory management requirements rather than functional performance.

Frequently Asked Questions (FAQ)

Q: Can 25JR33E be used as a direct replacement for 25JR33?

A: Yes. Both parts are electrically and mechanically identical, with matching resistance values (330 mOhms ±5%), power ratings (5W), axial form factors, and physical dimensions (0.276" Dia × 1.016" L). The primary difference is RoHS compliance status and packaging type.

Q: What is the difference in RoHS compliance between these parts?

A: The 25JR33 is RoHS non-compliant, while the 25JR33E is ROHS3 compliant. Selection depends on whether your application or regulatory jurisdiction requires RoHS3 certification.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.276" diameter by 1.016" length (7.00mm × 25.80mm) and use identical axial lead terminations, ensuring mechanical compatibility in PCB layouts.

Q: Does packaging type affect electrical performance?

A: No. The difference between standard and bulk packaging is administrative and logistical only. Electrical and thermal performance remain identical.

Q: What applications require these low-resistance wirewound resistors?

A: These 330 mOhm 5W axial resistors are used in current-sensing circuits, power supply designs, and applications requiring precision low-resistance dissipation with thermal stability.