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Product Detailed Parameters
- Description：VARIABLE-CAPACITANCE DIODE
- Series：-
- Mfr：onsemi
- Package：Bulk
- Capacitance @ Vr, F：38pF @ 1.6V, 1MHz
- Capacitance Ratio：1.7
- Capacitance Ratio Condition：C1.6/C5
- Voltage - Peak Reverse (Max)：12 V
- Diode Type：Single
- Q @ Vr, F：-
- Operating Temperature：100°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：2-SIP
- Supplier Device Package：2-SPA
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Overview
The SVC251SPA-AC is a single varactor diode manufactured by onsemi, designed for variable capacitance applications. It is housed in the 2-Pin SPA (Small Plastic Assembly) through-hole package. The device operates with a maximum voltage rating of 12 V and provides a nominal capacitance of 23 pF. This component is engineered to support tuning circuits and frequency control functions within electronic systems requiring precise capacitive adjustment.
Feature Summary
- Provides variable capacitance functionality for circuit tuning
- Designed for through-hole mounting via the 2-Pin SPA package
- Optimized for stable operation at low voltage ratings
Applications
- Frequency tuning circuits
- Voltage-controlled oscillators
- RF signal processing systems
Procurement Notes
Verify the specific datasheet version when sourcing this component to ensure alignment with current manufacturing specifications. Confirm that the 2-Pin SPA package dimensions match your PCB layout requirements. Ensure the 12 V maximum voltage rating meets the operational limits of your target application environment before finalizing procurement decisions.
Selection Notes
Select this component when a through-hole solution is required for variable capacitance needs. The 23 pF nominal value suits applications needing specific tuning ranges. Consider the 12 V rating to ensure compatibility with low-voltage signal paths. The SPA package offers a compact footprint suitable for standard assembly processes.
Part Context
This part belongs to onsemi’s portfolio of discrete semiconductor devices, specifically within the diodes and rectifiers category. Varactor diodes like the SVC251SPA-AC are essential for creating tunable reactive components in analog and RF designs. They enable dynamic adjustment of circuit parameters without mechanical moving parts.
Replacement Considerations
Consult official cross-reference lists or distributor databases for verified substitute part numbers. Ensure any replacement matches the 12 V rating, 23 pF capacitance, and 2-Pin SPA package form factor to maintain system integrity.
