Equivalent & Substitute Parts for Ohmite 93J75R

Part Overview

The Ohmite 93J75R is a 75 Ohm, ±5% tolerance, 3.25W axial wirewound resistor with flame retardant coating and safety features. This component is classified as Active product status and is suitable for through-hole applications requiring precision resistance values in moderate power dissipation scenarios. Substitute parts become necessary when inventory constraints exist, when enhanced compliance requirements are mandated, or when higher power ratings are required for thermal margin in circuit design.

Substiute Parts

93J75R

OhmiteIn Stock: 80993J75R Datasheet

Current PartRFQ

95J75RE

OhmiteIn Stock: 114295J75RE Datasheet

MFR RecommendedRFQ

93J75RE

OhmiteIn Stock: 69693J75RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 93J75R is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 75 Ohms
• Tolerance: ±5%
• Composition: Wirewound
• Package/Case: Axial
• Temperature Coefficient: ±30ppm/°C
• Features: Flame Retardant Coating, Safety
• Series: 90
• Number of Terminations: 2

Allowable Variation Parameters:

• Power Rating: Equal or greater than 3.25W
• RoHS Status: May differ (non-compliant to compliant)
• Packaging format: May differ (tape/reel to bulk)

Two substitute parts meet these criteria and are grouped as follows:

Group 1 - MFR Recommended: 95J75RE (higher power rating, 5W) Group 2 - Parametric Equivalent: 93J75RE (identical electrical specifications, different compliance)

Parameter Comparison

Engineering Selection Recommendations

95J75RE (MFR Recommended Substitute): This part is the manufacturer-recommended alternative. It maintains all electrical and mechanical specifications of the 93J75R while providing a higher power rating of 5W versus 3.25W. The 95J75RE achieves ROHS3 compliance, addressing regulatory requirements where the original part does not. Physical dimensions increase to accommodate the higher power rating (0.264" diameter vs. 0.233", and 0.969" length vs. 0.579"). This substitution is appropriate when enhanced thermal margin is required or when RoHS3 compliance is mandated. Higher inventory availability (1126 units) supports supply chain continuity.

93J75RE (Parametric Equivalent Substitute): This part provides identical electrical and mechanical specifications to the 93J75R, including the same 3.25W power rating and physical dimensions. The primary distinction is ROHS3 compliance status. This substitution is appropriate when regulatory compliance upgrade is required without altering circuit thermal characteristics or board layout. Inventory availability is adequate at 675 units.

Frequently Asked Questions (FAQ)

Q: Can the 95J75RE be used in place of the 93J75R without circuit modification? A: Yes. The 95J75RE maintains identical resistance, tolerance, temperature coefficient, and package type. The higher 5W power rating is a superset capability. Physical dimensions differ; verify board layout clearance before substitution.

Q: What is the primary difference between the 93J75RE and 93J75R? A: Both parts are electrically and mechanically identical with matching 3.25W power ratings and dimensions. The 93J75RE achieves ROHS3 compliance while the 93J75R does not. Selection depends on regulatory requirements.

Q: Are all three parts interchangeable from a circuit functionality perspective? A: All three parts deliver the same 75 Ohm resistance value with ±5% tolerance and ±30ppm/°C temperature coefficient. Functional interchangeability is confirmed. Physical dimensions of the 95J75RE differ; verify PCB layout compatibility.

Q: Which substitute should be selected for new designs? A: Selection is based on compliance requirements and thermal margin needs. For ROHS3-compliant designs with standard thermal requirements, use 93J75RE. For designs requiring enhanced thermal margin or higher power dissipation tolerance, use 95J75RE.

Q: Do all substitute parts maintain the same axial package configuration? A: Yes. All three parts use axial through-hole packaging with two terminations. Physical diameter and length vary for the 95J75RE due to higher power rating.