TWM3J47R Equivalent & Substitute Parts

Part Overview

The TWM3J47R is a 47 Ohm, 3W through-hole resistor manufactured by Ohmite, featuring metal oxide film construction with flame-proof and safety characteristics. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. The radial package configuration and specific electrical ratings define the scope of compatible alternatives.

Substiute Parts

TWM3J47R

OhmiteIn Stock: 714TWM3J47R Datasheet

Current PartRFQ

TWM3J47RE

OhmiteIn Stock: 1079TWM3J47RE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TWM3J47R is determined by strict equivalence across the following parameters:

• Resistance value: 47 Ohms
• Tolerance: ±5%
• Power rating: 3W
• Composition: Metal Oxide Film
• Package configuration: Radial
• Operating temperature range: -55°C to 275°C
• Temperature coefficient: ±350ppm/°C
• Physical dimensions: 0.492" L x 0.354" W with maximum seated height of 1.024"

The TWM3J47RE meets all substitution criteria as a direct equivalent within the same TWM series.

Parameter Comparison

Engineering Selection Recommendations

The TWM3J47RE is the direct substitute for the obsolete TWM3J47R. Both components share identical electrical specifications, mechanical dimensions, and thermal characteristics. The primary distinction is product status: the TWM3J47R is obsolete while the TWM3J47RE is active production.

For new designs and ongoing procurement, the TWM3J47RE is the appropriate selection. The TWM3J47RE additionally provides ROHS3 compliance, whereas the original TWM3J47R is RoHS non-compliant. Both components maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can TWM3J47RE be used as a direct replacement for TWM3J47R?

A: Yes. The TWM3J47RE is electrically and mechanically equivalent to the TWM3J47R across all specified parameters, including resistance, tolerance, power rating, temperature range, and physical dimensions.

Q: What is the primary reason to substitute TWM3J47R with TWM3J47RE?

A: The TWM3J47R is classified as obsolete. The TWM3J47RE is the active production equivalent within the same TWM series, ensuring continued component availability.

Q: Are there packaging differences between these parts?

A: The TWM3J47R is supplied in standard packaging, while the TWM3J47RE is supplied in bulk packaging. Both maintain identical radial package configuration and physical dimensions.

Q: Does the RoHS compliance difference affect substitution?

A: The TWM3J47RE provides ROHS3 compliance, whereas the TWM3J47R is RoHS non-compliant. For applications requiring RoHS compliance, the TWM3J47RE is the appropriate selection.

Q: Are the electrical characteristics identical?

A: Yes. Both components specify 47 Ohms ±5% at 3W with metal oxide film composition, ±350ppm/°C temperature coefficient, and -55°C to 275°C operating range.