TWW5JR47 Equivalent & Substitute Parts

Part Overview

The TWW5JR47 is a 470 mOhms ±5% 5W through-hole wirewound resistor manufactured by Ohmite in radial configuration. This component is classified as obsolete, making substitute parts necessary for ongoing production and maintenance applications. The part features flame-proof and safety-rated construction suitable for industrial and high-reliability applications requiring precision current-limiting or load-balancing functions.

Substiute Parts

TWW5JR47

OhmiteIn Stock: 1102TWW5JR47 Datasheet

Current PartRFQ

TWW5JR47E

OhmiteIn Stock: 3445TWW5JR47E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TWW5JR47 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for resistance value (470 mOhms), tolerance (±5%), power rating (5W), composition (wirewound), package configuration (radial), operating temperature range (-55°C to 275°C), temperature coefficient (±400 ppm/°C), and physical dimensions (12.50mm × 9.00mm × 26.00mm max height). The TWW5JR47E meets all these criteria and represents the direct equivalent within the Ohmite TWW series.

Parameter Comparison

Engineering Selection Recommendations

The TWW5JR47E is the direct equivalent substitute for the obsolete TWW5JR47. Both parts are manufactured by Ohmite within the same TWW series and share identical electrical and mechanical specifications. The primary distinction is product status: the TWW5JR47E is active production, ensuring long-term availability and supply chain continuity.

For applications subject to RoHS3 compliance requirements, the TWW5JR47E is the appropriate selection, as it meets ROHS3 standards while the original part does not. Both parts maintain REACH Unaffected status and share identical ECCN and HTSUS classifications, supporting consistent regulatory documentation across procurement and export scenarios.

Frequently Asked Questions (FAQ)

Q: Can TWW5JR47E be used as a direct replacement for TWW5JR47? A: Yes. The TWW5JR47E is electrically and mechanically identical to the TWW5JR47 across all specified parameters, including resistance, tolerance, power rating, temperature range, and physical dimensions. The radial package configuration and flame-proof safety features are preserved.

Q: What is the primary reason to transition from TWW5JR47 to TWW5JR47E? A: The TWW5JR47 is classified as obsolete. The TWW5JR47E is the active production equivalent, ensuring continued availability and supply chain support for new designs and ongoing production requirements.

Q: Are there compliance differences between these parts? A: The TWW5JR47E is ROHS3 compliant, while the TWW5JR47 is RoHS non-compliant. For applications requiring RoHS3 certification, the TWW5JR47E must be specified. Both parts maintain identical REACH Unaffected status.

Q: Do the physical dimensions differ between these parts? A: No. Both parts share identical dimensions: 12.50mm length × 9.00mm width × 26.00mm maximum seated height. Radial package configuration and lead termination count (2) are identical, supporting direct PCB layout compatibility.

Q: What is the temperature operating range for these resistors? A: Both parts operate across -55°C to 275°C with a temperature coefficient of ±400 ppm/°C, supporting high-temperature industrial and automotive applications.