BBY40TA

Overview

The BBY40TA is a silicon varactor diode manufactured by Diodes Incorporated, housed in an SOT-23-3 surface-mount package. It is designed for high-frequency tuning applications within electronic circuits. The component supports a maximum operating temperature of +150°C and features a single configuration. Key electrical specifications include a maximum reverse voltage rating of 28V and a power dissipation capacity of 330mW. It provides a minimum tuning ratio of 5, enabling effective capacitance variation for oscillator and filter circuit adjustments.

Feature Summary

• Utilizes silicon technology for reliable high-frequency performance
• Provides variable capacitance characteristics suitable for tuning applications
• Features a compact SOT-23-3 surface-mount package design

Applications

• High-frequency oscillator circuits
• Voltage-controlled filter designs
• Frequency modulation modules

Procurement Notes

Verify the specific suffix and marking codes on the physical component to ensure alignment with the BBY40TA designation from Diodes Incorporated. Confirm that the received units match the SOT-23-3 package dimensions and pinout configuration documented in the official datasheet. Ensure compliance with RoHS directives and check for any regional distribution restrictions or supply limitations before finalizing procurement orders.

Selection Notes

Select this component when a small-form-factor varactor diode is required for VCO or tuning applications. The SOT-23-3 package offers space efficiency for dense PCB layouts. Consider the 28V reverse voltage limit and 330mW power dissipation rating against the circuit's operational requirements. Ensure the minimum tuning ratio of 5 meets the necessary frequency deviation specifications for the target application.

Part Context

This part belongs to the category of varactor diodes produced by Diodes Incorporated. It serves as a passive semiconductor device used primarily for its voltage-dependent capacitance properties. Unlike standard rectifier or switching diodes, this component is engineered specifically for reactive circuit elements where capacitance adjustment via applied voltage is critical for signal processing functions.

Replacement Considerations

Consult official manufacturer substitution guides for verified equivalent part numbers. Cross-reference pin configurations, maximum ratings, and capacitance-voltage curves to ensure functional compatibility. Generic substitutes may not match the specific tuning ratio or thermal characteristics of the original component.