TWW5JR10 Equivalent & Substitute Parts

Part Overview

The TWW5JR10 is a 100 mOhms ±5% 5W through-hole wirewound resistor manufactured by Ohmite in radial configuration. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing procurement and design continuity. The part features flame-proof and safety-rated construction suitable for applications requiring reliable low-resistance power dissipation in harsh thermal environments.

Substiute Parts

TWW5JR10

OhmiteIn Stock: 768TWW5JR10 Datasheet

Current PartRFQ

TWW5JR10E

OhmiteIn Stock: 3717TWW5JR10E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The TWW5JR10E qualifies as a direct equivalent based on identical electrical and mechanical parameters. Substitution eligibility is determined by the following criteria:

• Resistance value: 100 mOhms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 5W (exact match required)
• Composition: Wirewound (exact match required)
• Package configuration: Radial (exact match required)
• Temperature coefficient: ±400ppm/°C (exact match required)
• Operating temperature range: -55°C to 275°C (exact match required)
• Physical footprint: 12.50mm × 9.00mm × 26.00mm (exact match required)
• Termination count: 2 leads (exact match required)

The TWW5JR10E maintains all specified electrical and mechanical characteristics of the original part while offering improved product status and compliance posture.

Parameter Comparison

Engineering Selection Recommendations

The TWW5JR10E is the direct replacement for the obsolete TWW5JR10. Both parts are manufactured by Ohmite and share identical electrical specifications, thermal characteristics, and physical form factors. The primary distinction is product status and regulatory compliance: the TWW5JR10E is actively produced and ROHS3 compliant, whereas the original part is obsolete and RoHS non-compliant. For new designs and ongoing procurement, the TWW5JR10E should be specified. Both parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can TWW5JR10E be used as a direct replacement for TWW5JR10?

A: Yes. The TWW5JR10E is electrically and mechanically identical to the TWW5JR10. All electrical parameters, thermal ratings, physical dimensions, and lead configurations are equivalent. The parts are interchangeable at the circuit level.

Q: What is the primary reason to transition from TWW5JR10 to TWW5JR10E?

A: The TWW5JR10 is obsolete and no longer manufactured. The TWW5JR10E is the active production equivalent from the same manufacturer, ensuring continued availability and supply chain reliability.

Q: Are there compliance differences between these parts?

A: Yes. The TWW5JR10E is ROHS3 compliant, while the TWW5JR10 is RoHS non-compliant. Both maintain REACH Unaffected status. For applications subject to RoHS regulations, the TWW5JR10E is required.

Q: Will the TWW5JR10E fit the same PCB footprint as the TWW5JR10?

A: Yes. Both parts are radial configuration with identical physical dimensions of 12.50mm length × 9.00mm width and 26.00mm seated height. PCB layouts require no modification.

Q: Are the thermal and electrical characteristics identical?

A: Yes. Both parts operate across -55°C to 275°C, maintain ±400ppm/°C temperature coefficient, and deliver 5W power dissipation at 100 mOhms ±5% resistance.