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Product Detailed Parameters
- Description：DIODE VAR CAPACITANCE SOT23-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Capacitance @ Vr, F：24.2pF @ 2V, 1MHz
- Capacitance Ratio：6.5
- Capacitance Ratio Condition：C2/C20
- Voltage - Peak Reverse (Max)：25 V
- Diode Type：Single
- Q @ Vr, F：200 @ 3V, 50MHz
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
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Overview
The ZC832ATC is a single hyperabrupt junction varactor diode manufactured by Diodes Incorporated in the SOT-23-3 surface-mount package. It features a peak reverse voltage of 25 V and an input capacitance of 24.2 pF at 2 V and 1 MHz. The device offers a capacitance ratio of 6.5 (C2/C20) and maintains a Q factor of 200 at 3 V and 50 MHz. Operating temperature range spans from -55°C to +150°C junction temperature.
Feature Summary
- Hyperabrupt junction profile for high capacitance tuning ratios
- Single-channel varactor configuration in compact SOT-23-3 package
- Wide operating temperature range suitable for industrial environments
Applications
- Voltage-controlled oscillator (VCO) tuning circuits
- Frequency modulation (FM) modulators
- Phase-locked loop (PLL) filter networks
Procurement Notes
This component is officially listed as obsolete and no longer manufactured by Diodes Incorporated. Procurement should focus on verifying stock availability through authorized distributors or surplus suppliers. Ensure that any available units are genuine and properly stored to prevent moisture sensitivity damage, as the part is no longer in active production.
Selection Notes
Select this part only if legacy compatibility with existing hyperabrupt varactor designs is required. Consider modern replacements with higher Q factors or lower series resistance if new design-in opportunities exist. Verify that the 25 V reverse voltage rating meets the specific circuit bias requirements before substitution.
Part Context
The ZC832ATC belongs to the ZC832A family of discrete semiconductor varactors. It is designed for RF and microwave applications requiring variable capacitance control via reverse bias voltage. The hyperabrupt doping profile distinguishes it from standard abrupt or planar varactors, offering superior tuning linearity.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. As the part is obsolete, engineers must evaluate equivalent hyperabrupt varactors from other manufacturers based on matching capacitance, voltage, and package specifications.
