Equivalent & Substitute Parts for TWM3J470

Part Overview

The TWM3J470 is a 470 Ohms ±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 TWM3J470 is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

TWM3J470

OhmiteIn Stock: 937TWM3J470 Datasheet

Current PartRFQ

TWM3J470E

OhmiteIn Stock: 977TWM3J470E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TWM3J470 is determined by strict equivalence across the following critical parameters:

• Resistance value: 470 Ohms
• Tolerance: ±5%
• Power rating: 3W
• Composition: Metal Oxide Film
• Package configuration: Radial with 2 terminations
• Operating temperature range: -55°C to 275°C
• Temperature coefficient: ±350ppm/°C
• Physical dimensions: 0.492" L x 0.354" W with maximum seated height of 1.024"

The TWM3J470E meets all these criteria and is classified as an active product, providing direct functional and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The TWM3J470E is the direct equivalent for the obsolete TWM3J470. Both components are manufactured by Ohmite and share identical electrical and mechanical specifications. The primary distinction is product status and regulatory compliance: the TWM3J470E is actively produced and ROHS3 compliant, whereas the TWM3J470 is obsolete and RoHS non-compliant.

For new designs or ongoing procurement, the TWM3J470E is the appropriate selection. For legacy systems currently using the TWM3J470, the TWM3J470E provides drop-in compatibility without circuit redesign or board layout modification.

Frequently Asked Questions (FAQ)

Q: Can TWM3J470E replace TWM3J470 in existing applications? A: Yes. The TWM3J470E is electrically and mechanically identical to the TWM3J470. Both components have the same resistance value, tolerance, power rating, temperature range, and physical dimensions. Direct substitution is possible without circuit modification.

Q: What is the difference between TWM3J470 and TWM3J470E? A: The TWM3J470 is obsolete, while the TWM3J470E is an active product. The TWM3J470E is ROHS3 compliant, whereas the TWM3J470 is RoHS non-compliant. All electrical and mechanical parameters are identical.

Q: Are there packaging differences between these parts? A: The TWM3J470 is supplied in standard packaging, while the TWM3J470E is supplied in bulk packaging. Both use the same radial package configuration with identical physical dimensions.

Q: What is the operating temperature range for these resistors? A: Both the TWM3J470 and TWM3J470E operate from -55°C to 275°C, with a temperature coefficient of ±350ppm/°C.

Q: Are these resistors suitable for high-temperature applications? A: Yes. The 275°C maximum operating temperature and metal oxide film composition make these resistors suitable for high-temperature industrial and safety-critical applications.

Q: What does "flame proof" mean for these resistors? A: Flame-proof designation indicates that the resistor is designed to prevent flame propagation and is suitable for applications requiring enhanced safety characteristics.