Ohmite 40J75R Equivalent & Substitute Parts

Part Overview

The Ohmite 40J75R is a 75 Ohm, 5% tolerance, 10W axial wirewound through-hole resistor from the Ohmicone® 40 series. This component is classified as Active product status and is currently in stock with 1060 units available. The 40J75R serves applications requiring precision resistive elements with moderate power dissipation in through-hole configurations. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category, enabling procurement flexibility and supply chain continuity.

Substiute Parts

40J75R

OhmiteIn Stock: 109040J75R Datasheet

Current PartRFQ

40J75RE

OhmiteIn Stock: 114840J75RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 40J75R are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are:

• Resistance value: 75 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 10W (exact match required)
• Composition: Wirewound (exact match required)
• Package type: Axial (exact match required)
• Temperature coefficient: ±20ppm/°C (exact match required)
• Physical dimensions: 0.406" Dia x 1.902" L (exact match required)
• Number of terminations: 2 (exact match required)

The 40J75RE meets all substitution criteria as a parametric equivalent within the Ohmicone® 40 series. The primary distinction between these parts is packaging configuration and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the 40J75R and 40J75RE are Active status components from Ohmite's Ohmicone® 40 series with identical electrical and mechanical specifications. Selection between these parts should be based on regulatory and compliance requirements:

The 40J75RE is ROHS3 compliant, making it the appropriate choice for applications subject to RoHS directives and regulations requiring lead-free component compliance. The 40J75R, classified as RoHS non-compliant, is suitable for applications without RoHS compliance mandates or legacy systems where RoHS compliance is not required.

Both parts carry identical ECCN (EAR99) and HTSUS (8533.21.0080) classifications. Packaging configuration differs between standard and bulk options, with inventory availability comparable across both variants.

Frequently Asked Questions (FAQ)

Q: Can the 40J75RE directly replace the 40J75R in all applications?

A: The 40J75RE is electrically and mechanically equivalent to the 40J75R. Direct substitution is valid from a functional standpoint. However, the 40J75RE is ROHS3 compliant while the 40J75R is not. Substitution suitability depends on whether your application or regulatory environment requires RoHS compliance.

Q: What is the difference between the packaging options?

A: The 40J75R is supplied in standard packaging, while the 40J75RE is supplied in bulk packaging. Both contain identical components with the same electrical and mechanical properties. Packaging selection is typically driven by procurement volume requirements and inventory management practices.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the 40J75R and 40J75RE share identical dimensions of 0.406" diameter by 1.902" length (10.30mm x 48.30mm). They are mechanically interchangeable in PCB layouts and through-hole applications.

Q: What does the temperature coefficient specification mean for substitution?

A: Both parts specify ±20ppm/°C temperature coefficient, indicating identical thermal stability characteristics. This parameter is critical for precision applications and confirms that substitution does not compromise temperature-dependent performance.

Q: How do I determine which part to order?

A: If your design or regulatory requirements mandate RoHS compliance, select the 40J75RE. If RoHS compliance is not required, either part is functionally suitable. Verify your procurement specifications and regulatory obligations before final selection.