Ohmite 90J47R Equivalent & Substitute Parts

Part Overview

The Ohmite 90J47R is a 47 Ohm, 11W wirewound axial resistor with ±5% tolerance and flame retardant coating for safety applications. This component is classified as Active product status and is designed for through-hole mounting in high-power applications requiring reliable thermal dissipation and electrical stability. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, procurement lead times, or design flexibility needs.

Substiute Parts

90J47R

OhmiteIn Stock: 86090J47R Datasheet

Current PartRFQ

90J47RE

OhmiteIn Stock: 93290J47RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 90J47RE qualifies as a parametric equivalent to the 90J47R based on the following critical substitution criteria:

• Identical resistance value: 47 Ohms
• Matching tolerance: ±5%
• Equivalent power rating: 11W
• Same composition: Wirewound
• Identical package configuration: Axial
• Matching temperature coefficient: ±30ppm/°C
• Identical physical dimensions: 0.343" Dia x 1.811" L (8.70mm x 46.00mm)
• Same functional features: Flame retardant coating and safety designation

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

Parameter Comparison

Engineering Selection Recommendations

Both the 90J47R and 90J47RE are Active status components suitable for direct substitution in circuit applications requiring 47 Ohm, 11W wirewound axial resistors. Selection between these parts should be based on the following criteria:

90J47R is appropriate for applications where RoHS non-compliant components are acceptable or required by legacy design specifications.

90J47RE is the preferred selection for new designs and applications requiring ROHS3 compliance and REACH unaffected status. The bulk packaging format of the 90J47RE may offer cost advantages for high-volume production runs.

Both parts maintain identical electrical performance, thermal characteristics, and physical form factor, ensuring seamless integration into existing PCB layouts and circuit designs without modification.

Frequently Asked Questions (FAQ)

Q: Can the 90J47RE be used as a direct replacement for the 90J47R in existing designs?

A: Yes. The 90J47RE is electrically and mechanically equivalent to the 90J47R. All critical parameters including resistance value, tolerance, power rating, temperature coefficient, and physical dimensions are identical. The parts are interchangeable at the component level.

Q: What is the difference between the standard packaging of the 90J47R and the bulk packaging of the 90J47RE?

A: Packaging format refers to the quantity and presentation method for procurement. The 90J47R uses standard packaging, while the 90J47RE is supplied in bulk format. This distinction affects ordering quantities and logistics but does not impact component performance or functionality.

Q: Why does the 90J47RE have ROHS3 compliance while the 90J47R does not?

A: RoHS compliance status reflects the manufacturing process and material composition used during production. The 90J47RE meets ROHS3 standards, making it suitable for applications subject to environmental and regulatory compliance requirements. The 90J47R, while functionally identical, was manufactured under different specifications.

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

A: No. Both parts share identical temperature coefficient (±30ppm/°C), power rating (11W), and resistance tolerance (±5%). Thermal dissipation and electrical behavior are equivalent under identical operating conditions.

Q: Can these parts be used interchangeably in high-reliability applications?

A: Yes, provided that the application's compliance requirements are met. For applications requiring ROHS3 compliance or REACH unaffected status, the 90J47RE is the appropriate selection. For applications without such requirements, either part is suitable.