Ohmite 90J27R Equivalent & Substitute Parts

Part Overview

The Ohmite 90J27R is a 27 Ohm, 11W wirewound axial resistor with ±5% tolerance and flame retardant coating for safety applications. This through-hole component is designed for high-power dissipation in industrial and electronic equipment. The part is currently in active production status. Substitute parts are identified to provide alternative sourcing options while maintaining identical electrical and mechanical specifications.

Substiute Parts

90J27R

OhmiteIn Stock: 82690J27R Datasheet

Current PartRFQ

90J27RE

OhmiteIn Stock: 126190J27RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 90J27RE qualifies as a parametric equivalent to the 90J27R based on the following critical substitution criteria:

• Identical resistance value: 27 Ohms
• Matching tolerance: ±5%
• Equivalent power rating: 11W
• Same composition: Wirewound
• Identical package type: Axial
• Matching temperature coefficient: ±30ppm/°C
• Identical physical dimensions: 0.343" Dia x 1.811" L (8.70mm x 46.00mm)
• Same electrical features: Flame retardant coating and safety designation

Both parts belong to the Ohmite 90 series and maintain full electrical and mechanical compatibility for direct substitution in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 90J27R and 90J27RE are active production components from Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on regulatory and compliance requirements:

The 90J27R is suitable for applications where RoHS compliance is not a requirement. The 90J27RE provides ROHS3 compliance and Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), making it the preferred choice for applications subject to RoHS3 regulations or requiring enhanced moisture handling specifications. Both parts maintain identical performance characteristics and are directly interchangeable from an electrical and mechanical standpoint.

Frequently Asked Questions (FAQ)

Q: Can the 90J27RE be used as a direct replacement for the 90J27R?

A: Yes. The 90J27RE is electrically and mechanically identical to the 90J27R. All critical parameters including resistance, tolerance, power rating, temperature coefficient, and physical dimensions are identical. The primary difference is RoHS compliance status.

Q: What is the difference between the 90J27R and 90J27RE?

A: The 90J27RE is ROHS3 compliant with an MSL rating of 1 (Unlimited), while the 90J27R is RoHS non-compliant. All electrical and mechanical specifications are identical.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts have identical dimensions of 0.343" Dia x 1.811" L (8.70mm x 46.00mm) and use the same axial package type, ensuring identical PCB layout compatibility.

Q: What does the temperature coefficient ±30ppm/°C mean for these resistors?

A: The temperature coefficient specifies the maximum change in resistance value per degree Celsius of temperature change. A ±30ppm/°C rating indicates the resistance will vary by a maximum of 30 parts per million for each degree Celsius deviation from the reference temperature.

Q: Can these 11W wirewound resistors be used in high-temperature applications?

A: These resistors are rated for 11W power dissipation with a temperature coefficient of ±30ppm/°C. Specific operating temperature limits are not provided in the technical specifications. Thermal design calculations should account for the resistor's power dissipation and ambient conditions.

Q: What does "Flame Retardant Coating, Safety" mean?

A: This designation indicates the resistor has a flame retardant coating applied to the component body and is designed for safety-critical applications where fire resistance is required.