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Product Detailed Parameters
- Description：DIODE VAR CAP DUAL 47PF SOT23-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Capacitance @ Vr, F：51.7pF @ 2V, 1MHz
- Capacitance Ratio：6.5
- Capacitance Ratio Condition：C2/C20
- Voltage - Peak Reverse (Max)：25 V
- Diode Type：1 Pair Common Cathode
- 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 ZDC834ATC is a dual varactor diode manufactured by Diodes Incorporated, housed in a surface-mount SOT-23-3 package. It features a common cathode configuration with a maximum peak reverse voltage of 25 V. The device provides a nominal capacitance of 47 pF and achieves a quality factor of 200 at 3 V and 50 MHz. It operates within a junction temperature range of -55°C to 150°C.
Feature Summary
- Dual varactor structure with common cathode topology
- Surface mount SOT-23-3 packaging for compact integration
- High Q-factor performance at specified RF frequencies
Applications
- RF tuning circuits
- Voltage-controlled oscillators
- Frequency modulation modules
Procurement Notes
This component is officially listed as obsolete and no longer manufactured by Diodes Incorporated. Verification of availability should focus on distributor surplus stock or secondary market channels rather than direct factory orders. Ensure compliance with RoHS3 standards if applicable to the specific batch, though lifecycle status takes precedence over environmental certifications for procurement planning.
Selection Notes
Engineers selecting this part must account for its discontinued status when designing new products. Alternative components from the same manufacturer or compatible pin-out equivalents should be evaluated for long-term supply chain stability. The dual common cathode design suits applications requiring balanced varactor pairs in tight space constraints.
Part Context
The ZDC834ATC belongs to the varactor diode category within Diodes Incorporated's discrete semiconductor portfolio. It is functionally related to single-channel variants like the ZC834A but offers integrated dual functionality. The product line has been subject to production change notices indicating end-of-life management.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation due to the component's obsolete status. Engineers should consult official replacement guides or contact the manufacturer for qualified alternatives.
