Ohmite 42J82R Equivalent & Substitute Parts

Part Overview

The Ohmite 42J82R is an 82 Ohm, 5% tolerance, 2W axial wirewound through-hole resistor from the Ohmicone® 40 series. This component is designed for general-purpose resistive applications requiring moderate power dissipation in compact axial form factor. The part is currently active in production. Substitute parts are identified to address packaging variations and compliance requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

42J82R

OhmiteIn Stock: 70242J82R Datasheet

Current PartRFQ

42J82RE

OhmiteIn Stock: 115642J82RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 42J82RE qualifies as a parametric equivalent to the 42J82R based on the following criteria:

• Identical resistance value: 82 Ohms
• Identical tolerance: ±5%
• Identical power rating: 2W
• Identical composition: Wirewound
• Identical package type: Axial
• Identical temperature coefficient: ±20ppm/°C
• Identical physical dimensions: 0.220" Dia x 0.406" L (5.60mm x 10.30mm)
• Identical number of terminations: 2

The primary difference between these parts is packaging configuration (tape and reel versus bulk) and compliance certifications, which do not affect electrical or mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both the 42J82R and 42J82RE are electrically and mechanically interchangeable for circuit applications requiring an 82 Ohm, 2W axial wirewound resistor. Selection between these parts should be based on the following criteria:

• Packaging Requirements: The 42J82R is supplied in standard packaging, while the 42J82RE is supplied in bulk configuration. Choose based on assembly process requirements and inventory management practices.

• Compliance Requirements: The 42J82RE is RoHS compliant with defined moisture sensitivity level (MSL 1), while the 42J82R is RoHS non-compliant. For applications subject to RoHS directives or customer compliance mandates, the 42J82RE is the appropriate selection.

• Operating Temperature Specification: The 42J82RE provides an explicit operating temperature range of -55°C to 275°C. For applications requiring documented temperature performance data, the 42J82RE offers this specification.

• Inventory Availability: Both parts are in active production with current stock availability (42J82R: 610 pcs; 42J82RE: 1070 pcs).

Frequently Asked Questions (FAQ)

Q: Are the 42J82R and 42J82RE electrically identical?

A: Yes. Both parts have identical resistance (82 Ohms), tolerance (±5%), power rating (2W), temperature coefficient (±20ppm/°C), and composition (wirewound). They are electrically interchangeable.

Q: Can I substitute the 42J82RE for the 42J82R in my circuit design?

A: Yes. The 42J82RE is a direct parametric equivalent with identical electrical and mechanical specifications. The parts are pin-compatible and functionally equivalent in circuit applications.

Q: What is the difference between these two part numbers?

A: The primary differences are packaging configuration (standard versus bulk) and compliance certifications. The 42J82RE is RoHS compliant with specified moisture sensitivity level, while the 42J82R is RoHS non-compliant. Both parts have identical electrical performance and physical dimensions.

Q: Which part should I use for a new design?

A: Selection depends on your specific requirements. If RoHS compliance is required, use the 42J82RE. If packaging configuration is a constraint, verify which format aligns with your assembly process. Both parts are active and available.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical dimensions of 0.220" diameter by 0.406" length (5.60mm x 10.30mm). They are mechanically interchangeable in PCB layouts and through-hole applications.

Q: What is the operating temperature range for these resistors?

A: The 42J82RE specifies an operating temperature range of -55°C to 275°C. The 42J82R does not provide an explicit operating temperature specification in the available data.