Ohmite 93J3R0 3 Ohms 3.25W Wirewound Resistor Equivalent & Substitute Parts

Part Overview

The Ohmite 93J3R0 is a 3 Ohms ±5% 3.25W through-hole wirewound resistor with flame retardant coating and safety features, packaged in axial configuration. This component is classified as Active product status and is suitable for applications requiring precision power dissipation in industrial and electronic equipment. Substitute parts are identified when packaging format changes or compliance upgrades are required while maintaining identical electrical and mechanical specifications.

Substiute Parts

93J3R0

OhmiteIn Stock: 71493J3R0 Datasheet

Current PartRFQ

93J3R0E

OhmiteIn Stock: 101093J3R0E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 93J3R0E is classified as a parametric equivalent to the 93J3R0 based on the following criteria:

Electrical Parameters (Identical):

• Resistance: 3 Ohms
• Tolerance: ±5%
• Power Rating: 3.25W
• Temperature Coefficient: ±100ppm/°C
• Composition: Wirewound

Mechanical Parameters (Identical):

• Package Type: Axial
• Size / Dimension: 0.233" Dia x 0.579" L (5.90mm x 14.70mm)
• Number of Terminations: 2
• Features: Flame Retardant Coating, Safety

Differentiation Factor:

• Packaging format: 93J3R0 supplied in Box; 93J3R0E supplied in Bulk
• RoHS Compliance: 93J3R0 is RoHS non-compliant; 93J3R0E is ROHS3 Compliant

Parameter Comparison

Engineering Selection Recommendations

93J3R0 (Box Packaging): Select this part number when box packaging is required for inventory management or when RoHS non-compliance is acceptable for the application.

93J3R0E (Bulk Packaging): Select this part number when ROHS3 compliance is mandated by design specifications, regulatory requirements, or customer standards. The bulk packaging format is suitable for high-volume production environments. Electrical and mechanical performance are identical to the main part.

Both part numbers are Active status products from Ohmite Series 90 and are suitable for direct substitution in applications where the specified packaging and compliance requirements are met.

Frequently Asked Questions (FAQ)

Q: Can 93J3R0E replace 93J3R0 in my circuit design? A: Yes. The 93J3R0E is electrically and mechanically identical to the 93J3R0. Both parts have the same resistance value (3 Ohms), tolerance (±5%), power rating (3.25W), temperature coefficient (±100ppm/°C), and axial package configuration. The primary difference is packaging format (Bulk vs. Box) and RoHS compliance status.

Q: What is the difference between Box and Bulk packaging? A: Box packaging (93J3R0) is typically used for smaller quantity orders and individual component distribution. Bulk packaging (93J3R0E) is used for high-volume production runs and is more economical for large-scale manufacturing. The component itself is identical.

Q: Does RoHS3 compliance affect circuit performance? A: No. RoHS3 compliance is a material composition standard that restricts hazardous substances. It does not alter the electrical or thermal performance of the resistor. The 93J3R0E meets ROHS3 requirements while maintaining identical electrical specifications to the 93J3R0.

Q: Are the physical dimensions identical between these parts? A: The dimensions are functionally equivalent. The 93J3R0 is specified as 0.232" Dia x 0.579" L, while the 93J3R0E is 0.233" Dia x 0.579" L. The 0.001" diameter variation is within manufacturing tolerance and does not affect PCB layout or mechanical fit for standard axial component mounting.

Q: Can I use 93J3R0E in applications requiring RoHS non-compliance? A: Yes. The 93J3R0E is ROHS3 compliant, which means it meets stricter material standards than the non-compliant 93J3R0. A compliant part can be used in non-compliant applications without functional impact.