TWM5J270 Equivalent & Substitute Parts

Part Overview

The TWM5J270 is a 270 Ohm, 5W through-hole radial resistor manufactured by Ohmite, featuring metal oxide film composition with flame-proof and safety characteristics. This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design support and procurement continuity. The TWM5J270E serves as the direct active equivalent, maintaining identical electrical and mechanical specifications while offering improved compliance status.

Substiute Parts

TWM5J270

OhmiteIn Stock: 734TWM5J270 Datasheet

Current PartRFQ

TWM5J270E

OhmiteIn Stock: 967TWM5J270E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TWM5J270 is determined by strict equivalence across the following parameters:

• Resistance value: 270 Ohms
• Tolerance: ±5%
• Power rating: 5W
• Composition: Metal Oxide Film
• Package configuration: Radial through-hole
• Temperature coefficient: ±350ppm/°C
• Operating temperature range: -55°C to 275°C
• Physical dimensions and termination count

The TWM5J270E maintains complete electrical and mechanical compatibility with the original part while transitioning from obsolete to active product status.

Parameter Comparison

Engineering Selection Recommendations

The TWM5J270E is the direct equivalent for the obsolete TWM5J270. Both parts are manufactured by Ohmite and share identical electrical specifications, mechanical dimensions, and thermal characteristics. The primary distinction is product status and regulatory compliance: the TWM5J270E is active and ROHS3 compliant, whereas the TWM5J270 is obsolete and RoHS non-compliant. For new designs or component replenishment, the TWM5J270E is the appropriate selection. Both parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can TWM5J270E be used as a direct replacement for TWM5J270?

A: Yes. The TWM5J270E is electrically and mechanically identical to the TWM5J270. All critical parameters—resistance, tolerance, power rating, composition, package type, temperature coefficient, and operating temperature range—are equivalent. Physical dimensions and termination configuration are identical.

Q: What is the difference between TWM5J270 and TWM5J270E?

A: The TWM5J270E is the active production equivalent of the obsolete TWM5J270. The substitute part is ROHS3 compliant, whereas the original is RoHS non-compliant. All other specifications remain unchanged.

Q: Are there any packaging differences between these parts?

A: The TWM5J270 is supplied in standard packaging, while the TWM5J270E is supplied in bulk packaging. Both maintain identical radial through-hole configuration and physical dimensions of 12.50mm L × 9.00mm W with a maximum seated height of 26.00mm.

Q: Can these parts be used in high-temperature applications?

A: Yes. Both the TWM5J270 and TWM5J270E are rated for operating temperatures from -55°C to 275°C with a temperature coefficient of ±350ppm/°C, making them suitable for high-temperature circuit applications.

Q: What is the tolerance specification for these resistors?

A: Both parts have a tolerance of ±5%, meaning the actual resistance value will fall within 256.5 Ohms to 283.5 Ohms for the 270 Ohm nominal value.