WNB330FE Equivalent & Substitute Parts

Part Overview

The WNB330FE is a 330 Ohm ±1% 1W through-hole axial wirewound resistor manufactured by Ohmite. This non-inductive composition resistor is designed for precision applications requiring tight tolerance and stable performance across extended temperature ranges. The part is currently in active production status with 882 units available in stock. Substitute parts are identified when packaging configurations differ while maintaining identical electrical and mechanical specifications, enabling procurement flexibility without compromising circuit performance.

Substiute Parts

WNB330FE

OhmiteIn Stock: 917WNB330FE Datasheet

Current PartRFQ

WNB330FET

OhmiteIn Stock: 7777WNB330FET Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The WNB330FE and WNB330FET are direct electrical and mechanical equivalents within the Ohmite WN series. Substitution is valid based on the following matching parameters:

• Resistance value: 330 Ohms (identical)
• Tolerance: ±1% (identical)
• Power rating: 1W (identical)
• Composition: Wirewound (identical)
• Non-inductive feature (identical)
• Temperature coefficient: ±20ppm/°C (identical)
• Operating temperature range: -55°C to 150°C (identical)
• Package type: Axial (identical)
• Physical dimensions: 0.130" Dia × 0.276" L (identical)
• Termination count: 2 (identical)

The primary difference between these parts is packaging configuration: WNB330FE is supplied in standard packaging, while WNB330FET is supplied in Tape & Reel (TR) format for automated assembly processes.

Parameter Comparison

Engineering Selection Recommendations

Both WNB330FE and WNB330FET are active production parts from Ohmite with full RoHS compliance. Selection between these parts should be based on assembly methodology and procurement requirements:

• WNB330FE: Select for manual assembly, prototyping, or low-volume production where standard packaging is appropriate.
• WNB330FET: Select for automated pick-and-place assembly operations where Tape & Reel packaging is required for production efficiency.

Both parts meet identical electrical specifications and are suitable for applications requiring 330 Ohm ±1% precision resistors with 1W power dissipation capability across the -55°C to 150°C operating range. The non-inductive wirewound construction ensures performance in circuits sensitive to parasitic inductance.

Frequently Asked Questions (FAQ)

Q: Can WNB330FET be used as a direct replacement for WNB330FE in manual assembly?

A: Yes. The electrical and mechanical specifications are identical. The only difference is packaging format. WNB330FET can be manually placed on PCBs despite being supplied in Tape & Reel format.

Q: Are there any performance differences between WNB330FE and WNB330FET?

A: No. Both parts have identical resistance values, tolerance, power rating, temperature coefficient, and operating temperature range. Performance in circuit operation is equivalent.

Q: What does "non-inductive" mean for this wirewound resistor?

A: Non-inductive wirewound resistors use a bifilar winding technique where the wire is wound back on itself, canceling parasitic inductance. This is critical for high-frequency and precision applications where inductance would degrade circuit performance.

Q: Can these 330 Ohm resistors be used in high-temperature applications?

A: Yes. Both parts are rated for operation from -55°C to 150°C. The ±20ppm/°C temperature coefficient ensures stable resistance values across this range.

Q: What is the difference between RoHS3 and RoHS compliance listed for these parts?

A: Both designations indicate compliance with Restriction of Hazardous Substances regulations. RoHS3 represents the current EU directive version. Both parts meet hazardous substance restrictions.

Q: Which packaging format should I specify for high-volume production?

A: WNB330FET (Tape & Reel) is the standard choice for automated assembly lines. It enables efficient pick-and-place machine operation and reduces manual handling.