TWM3J2K7 Equivalent & Substitute Parts

Part Overview

The TWM3J2K7 is a 2.7 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 TWM3J2K7 is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new production sourcing.

Substiute Parts

TWM3J2K7

OhmiteIn Stock: 1139TWM3J2K7 Datasheet

Current PartRFQ

TWM3J2K7E

OhmiteIn Stock: 938TWM3J2K7E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TWM3J2K7 is determined by strict equivalence across the following parameters:

• Resistance value: 2.7 kOhms
• Tolerance: ±5%
• Power rating: 3W
• Composition: Metal Oxide Film
• Package configuration: Radial with 2 terminations
• Physical dimensions: 0.492" L x 0.354" W, height 1.024" maximum
• Temperature coefficient: ±350ppm/°C
• Operating temperature range: -55°C to 275°C

The TWM3J2K7E qualifies as a direct substitute based on complete alignment with all specified electrical and mechanical parameters. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The TWM3J2K7E is the direct substitute for the obsolete TWM3J2K7. Both components are manufactured by Ohmite and share identical electrical specifications and physical dimensions. The TWM3J2K7E maintains active product status, ensuring continued availability and supply chain reliability.

The TWM3J2K7E provides ROHS3 compliance, whereas the original TWM3J2K7 is RoHS non-compliant. For applications subject to RoHS regulations or requiring compliance with modern environmental standards, the TWM3J2K7E is the appropriate selection. Both components maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can the TWM3J2K7E be used as a direct replacement for the TWM3J2K7?

A: Yes. The TWM3J2K7E is electrically and mechanically equivalent to the TWM3J2K7. All critical parameters—resistance, tolerance, power rating, composition, package type, temperature coefficient, and operating temperature range—are identical. Physical dimensions and termination configuration match exactly.

Q: What is the primary difference between these two parts?

A: The TWM3J2K7 is obsolete, while the TWM3J2K7E is active. Additionally, the TWM3J2K7E is ROHS3 compliant, whereas the TWM3J2K7 is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any packaging differences?

A: The TWM3J2K7 is supplied in standard packaging, while the TWM3J2K7E is supplied in bulk packaging. Both use the same radial package configuration with identical physical dimensions.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching resistance value (2.7 kOhms), tolerance (±5%), power rating (3W), composition (metal oxide film), package type (radial), temperature coefficient (±350ppm/°C), operating temperature range (-55°C to 275°C), and physical dimensions (0.492" L x 0.354" W, 1.024" height maximum).

Q: Is the TWM3J2K7E suitable for applications requiring RoHS compliance?

A: Yes. The TWM3J2K7E is ROHS3 compliant. The original TWM3J2K7 is RoHS non-compliant and should not be used in applications with RoHS requirements.