Ohmite 42J47R Equivalent & Substitute Parts

Part Overview

The Ohmite 42J47R is a 47 Ohm, 2W axial wirewound through-hole resistor from the Ohmicone® 40 series. This component is designed for applications requiring precision resistance with moderate power dissipation in a compact axial package. The part maintains Active product status and is currently in stock with 804 units available. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

42J47R

OhmiteIn Stock: 82242J47R Datasheet

Current PartRFQ

42J47RE

OhmiteIn Stock: 88942J47RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 42J47RE qualifies as a parametric equivalent to the 42J47R based on identical electrical and mechanical specifications. Both parts share the same resistance value (47 Ohms), tolerance (±5%), power rating (2W), composition (wirewound), package configuration (axial), temperature coefficient (±20ppm/°C), and physical dimensions (0.220" Dia x 0.406" L). The primary distinction between these parts is packaging format and compliance certification status, which do not affect functional performance in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 42J47R and 42J47RE are Active products from Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on compliance requirements and packaging needs. The 42J47RE offers RoHS compliance and documented operating temperature range (-55°C ~ 275°C), making it suitable for applications subject to environmental or regulatory restrictions. The 42J47R remains available for applications where RoHS compliance is not a requirement. Both parts are suitable for direct substitution in circuit designs where the specified electrical parameters are met.

Frequently Asked Questions (FAQ)

Q: Can the 42J47RE be used as a direct replacement for the 42J47R? A: Yes. Both parts are electrically and mechanically identical, with matching resistance (47 Ohms), tolerance (±5%), power rating (2W), composition (wirewound), and axial package dimensions (0.220" Dia x 0.406" L). The 42J47RE is a direct functional substitute.

Q: What is the difference between the 42J47R and 42J47RE? A: The primary differences are packaging format (standard vs. bulk) and compliance certifications. The 42J47RE is RoHS compliant with a documented operating temperature range of -55°C ~ 275°C, while the 42J47R is RoHS non-compliant with unspecified operating temperature limits.

Q: Are there any mechanical compatibility issues when substituting these parts? A: No. Both parts share identical physical dimensions (0.220" Dia x 0.406" L / 5.60mm x 10.30mm) and axial package configuration, ensuring mechanical compatibility in PCB layouts and through-hole applications.

Q: Which part should I select for RoHS-compliant applications? A: The 42J47RE is RoHS compliant and should be selected for applications requiring environmental or regulatory compliance certification.

Q: Do these parts have different temperature operating ranges? A: The 42J47RE specifies an operating temperature range of -55°C ~ 275°C. The 42J47R does not provide an operating temperature specification in the available data.