This is a surface mount silicon abrupt tuning varactor
The Temex Tuning Varactor Selection Guide provides an overview of the company’s silicon abrupt and hyperabrupt varactor families. It describes the epitaxial mesa design, high‑Q performance, and typical applications such as VCOs, voltage‑tuned filters, phase shifters and delay lines from HF up to microwave frequencies.
The document lists detailed electrical characteristics, package options (SOT23, SOT143, SOD323), temperature ranges and part numbers for the DH71000, DH76000, DH77000 and related series. It also includes tables of reverse breakdown voltage, capacitance, Q‑factor and recommended test conditions.
| Reverse breakdown voltage (30 V series) | 30 V min. |
|---|---|
| Operating junction temperature range | -55 °C to +125 °C |
| Storage temperature range | -65 °C to +150 °C |
| Q‑factor (example DH71010) | 4300 |
The 30 V series has a minimum reverse breakdown voltage of 30 V.
Varactors can be stored from –65 °C up to +150 °C.
The DH71010 part has a Q‑factor of about 4300 at 1 MHz.