ZC829BTC

Overview

ZC829BTC is a single varactor diode manufactured by Diodes Incorporated, housed in an SOT-23-3 surface-mount package. It features a peak reverse voltage of 25 V and a specified capacitance of 8.61 pF at 2 V and 1 MHz. The device offers a capacitance ratio of 6.0 (measured at C2/C20) and maintains a Q value of 300 at 3 V and 50 MHz. Operating junction temperature ranges from -55°C to 150°C. This component is currently obsolete.

Feature Summary

• Single-channel varactor diode design for RF tuning applications
• High Q factor performance at 50 MHz for efficient signal handling
• Capacitance ratio of 6.0 enables wide tuning range capabilities

Applications

• RF circuit tuning
• Voltage-controlled oscillators
• Frequency synthesizers

Procurement Notes

This part number is officially listed as obsolete by the manufacturer. Procurement should focus on verified replacement components or alternative series within the same product family that maintain compatible electrical specifications and package dimensions. Verify RoHS compliance status through current datasheets before integration.

Selection Notes

Select this component only if legacy compatibility is required due to its obsolete status. Ensure the application can accommodate the specific 8.61 pF baseline capacitance and 25 V reverse rating. Consider thermal management within the -55°C to 150°C operating range during design validation.

Part Context

The ZC829BTC belongs to the 830 Series varactor diode line from Diodes Incorporated. It is designed for high-frequency applications requiring precise capacitance control via reverse bias voltage. The SOT-23-3 package allows for compact PCB layouts in consumer and industrial electronics.

Replacement Considerations

ZC831BTC is a documented substitute with similar SOT-23-3 packaging and 25 V rating, though it specifies 15.75 pF capacitance and a 6.0 ratio.