TWW5J33R Equivalent & Substitute Parts

Part Overview

The TWW5J33R is a 33 Ohm, 5W through-hole wirewound resistor manufactured by Ohmite, designed for radial mounting applications. This component features flame-proof and safety-rated construction suitable for industrial and safety-critical circuits. The TWW5J33R is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and procurement planning.

Substiute Parts

TWW5J33R

OhmiteIn Stock: 1051TWW5J33R Datasheet

Current PartRFQ

TWW5J33RE

OhmiteIn Stock: 5387TWW5J33RE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TWW5J33R are identified based on electrical and mechanical parameter equivalence within the Ohmite TWW series. The substitution criteria are:

• Identical resistance value: 33 Ohms
• Matching tolerance: ±5%
• Equivalent power rating: 5W
• Same composition: Wirewound
• Identical package configuration: Radial
• Matching operating temperature range: -55°C to 275°C
• Equivalent temperature coefficient: ±350ppm/°C
• Identical physical dimensions and height specifications
• Equivalent safety and flame-proof features

The TWW5J33RE meets all these criteria and is classified as an active product, providing a direct functional and mechanical replacement for the obsolete TWW5J33R.

Parameter Comparison

Engineering Selection Recommendations

The TWW5J33RE is the direct substitute for the obsolete TWW5J33R. Both components are electrically and mechanically identical across all specified parameters. The primary distinction is product status and regulatory compliance: the TWW5J33RE is an active product with ROHS3 compliance, whereas the TWW5J33R is obsolete and RoHS non-compliant.

For new designs or component replacement in existing applications, the TWW5J33RE should be selected. The active product status ensures continued availability and manufacturing support. The ROHS3 compliance of the TWW5J33RE satisfies modern regulatory requirements for electronic components in most markets.

Frequently Asked Questions (FAQ)

Q: Can the TWW5J33RE be used as a direct replacement for the TWW5J33R?

A: Yes. The TWW5J33RE is electrically and mechanically equivalent to the TWW5J33R. All electrical parameters, physical dimensions, and functional characteristics are identical. The components are interchangeable in circuit applications.

Q: What is the difference between TWW5J33R and TWW5J33RE?

A: The TWW5J33R is obsolete, while the TWW5J33RE is an active product. The TWW5J33RE is ROHS3 compliant, whereas the TWW5J33R is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there packaging differences between these parts?

A: The TWW5J33R is supplied in standard packaging, while the TWW5J33RE is supplied in bulk packaging. Both use identical radial package configuration with the same physical dimensions and mounting characteristics.

Q: Is the TWW5J33RE suitable for safety-critical applications?

A: Yes. The TWW5J33RE retains the flame-proof and safety features of the original TWW5J33R, maintaining the same operating temperature range and thermal characteristics required for safety-rated circuit designs.

Q: What is the availability status of these components?

A: The TWW5J33R is obsolete with limited inventory. The TWW5J33RE is an active product with higher inventory availability, making it the recommended choice for procurement and design implementation.