Ohmite 90J50R Equivalent & Substitute Parts

Part Overview

The Ohmite 90J50R is a 50 Ohm, 11W axial wirewound resistor with flame retardant coating and safety features. This through-hole component is designed for applications requiring high power dissipation in a compact axial package. The part is currently active in production with 751 units in stock. Equivalent substitute parts are identified to provide procurement flexibility, inventory alternatives, and compliance options for design engineers and procurement teams.

Substiute Parts

90J50R

OhmiteIn Stock: 82090J50R Datasheet

Current PartRFQ

90J50RE

OhmiteIn Stock: 112090J50RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 90J50RE is identified as a parametric equivalent to the 90J50R based on matching electrical and mechanical specifications. Substitution eligibility is determined by the following critical parameters:

• Resistance value: 50 Ohms (exact match)
• Tolerance: ±5% (exact match)
• Power rating: 11W (exact match)
• Composition: Wirewound (exact match)
• Package: Axial (exact match)
• Physical dimensions: 0.343" Dia x 1.811" L (exact match)
• Temperature coefficient: ±30ppm/°C (exact match)
• Safety features: Flame retardant coating (exact match)

Both parts share identical electrical performance characteristics and physical form factors, making them directly interchangeable in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 90J50R and 90J50RE are active production parts from Ohmite's Series 90 wirewound resistor line. Selection between these parts should be based on regulatory compliance requirements:

The 90J50R is suitable for applications where RoHS compliance is not mandated. The 90J50RE provides ROHS3 compliance, making it the appropriate choice for designs subject to RoHS3 regulations or customer specifications requiring RoHS compliance. Both parts maintain identical electrical performance and physical characteristics, ensuring seamless substitution from a circuit design perspective. Inventory availability favors the 90J50RE with 1020 units in stock compared to 751 units for the 90J50R.

Frequently Asked Questions (FAQ)

Q: Are the 90J50R and 90J50RE electrically identical? A: Yes. Both parts have identical resistance (50 Ohms), tolerance (±5%), power rating (11W), temperature coefficient (±30ppm/°C), and composition (wirewound). They are electrically interchangeable.

Q: Can I use these parts interchangeably on a PCB? A: Yes. Both parts share identical axial package dimensions (0.343" Dia x 1.811" L) and two-terminal configuration, making them mechanically and functionally interchangeable in circuit layouts.

Q: What is the primary difference between these parts? A: The 90J50RE is ROHS3 compliant, while the 90J50R is RoHS non-compliant. This is the only specification difference between the two parts.

Q: Which part should I specify for new designs? A: Specify the 90J50RE for designs requiring RoHS3 compliance. For applications without RoHS requirements, either part is acceptable based on availability and cost considerations.

Q: Are both parts currently in production? A: Yes. Both the 90J50R and 90J50RE are active production parts with confirmed inventory availability.