TWM3J7K5 Equivalent & Substitute Parts

Part Overview

The TWM3J7K5 is a 7.5 kOhms ±5% 3W through-hole resistor with radial leads, manufactured by Ohmite using metal oxide film composition. This component features flame-proof and safety characteristics suitable for industrial and high-reliability applications. The part is currently classified as obsolete, making identification of equivalent substitute parts essential for ongoing system maintenance and new production requirements.

Substiute Parts

TWM3J7K5

OhmiteIn Stock: 732TWM3J7K5 Datasheet

Current PartRFQ

TWM3J7K5E

OhmiteIn Stock: 1116TWM3J7K5E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TWM3J7K5 is determined by strict equivalence across the following critical parameters:

• Resistance value: 7.5 kOhms
• Tolerance: ±5%
• Power rating: 3W
• Composition: Metal Oxide Film
• Package configuration: Radial with 2 terminations
• Temperature coefficient: ±350ppm/°C
• Operating temperature range: -55°C to 275°C
• Physical dimensions: 0.492" L x 0.354" W with maximum seated height of 1.024"

The TWM3J7K5E meets all these criteria and is classified as a direct substitute. This part maintains identical electrical specifications and mechanical form factor while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The TWM3J7K5E is the direct equivalent substitute for the obsolete TWM3J7K5. Both parts are manufactured by Ohmite within the TWM series and maintain identical electrical and mechanical specifications. The primary distinction is product status and regulatory compliance.

The TWM3J7K5E offers ROHS3 compliance, whereas the original part is RoHS non-compliant. Both parts maintain REACH Unaffected status and share the same ECCN and HTSUS classifications. For applications requiring RoHS compliance or long-term component availability, the TWM3J7K5E is the appropriate selection. For legacy systems where RoHS compliance is not a requirement, either part satisfies the electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can TWM3J7K5E be used as a direct replacement for TWM3J7K5?

A: Yes. The TWM3J7K5E is electrically and mechanically identical to the TWM3J7K5. Both parts have 7.5 kOhms resistance, ±5% tolerance, 3W power rating, metal oxide film composition, and identical radial package dimensions. The substitute part is currently in active production status.

Q: What is the difference between TWM3J7K5 and TWM3J7K5E?

A: The primary differences are product status and RoHS compliance. The TWM3J7K5 is obsolete and RoHS non-compliant, while the TWM3J7K5E is active and ROHS3 compliant. All electrical parameters, mechanical dimensions, and thermal characteristics are identical.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts have identical dimensions of 0.492" L x 0.354" W (12.50mm x 9.00mm) with a maximum seated height of 1.024" (26.00mm). They are fully interchangeable in PCB layouts and mechanical assemblies.

Q: Does the RoHS compliance difference affect circuit performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical performance. Both parts deliver identical resistance, tolerance, power handling, and temperature characteristics.

Q: What packaging options are available for the substitute part?

A: The TWM3J7K5E is supplied in bulk packaging, whereas the original TWM3J7K5 packaging specification is not detailed in the available data.