Shopping cart

Subtotal: $0.00
Diodes - Variable Capacitance (Varicaps, Varactors)
Diodes - Variable Capacitance (Varicaps, Varactors)

Diodes - Variable Capacitance (Varicaps, Varactors) - Category Overview

Definition & Functionality
Variable capacitance diodes, commonly known as varicaps or varactors, are specialized semiconductor devices designed to function as voltage-controlled capacitors. These diodes exploit the inherent capacitance variation across their PN junction when reverse-biased, enabling precise tuning of resonant circuits in RF applications. Unlike standard diodes, varactors prioritize capacitive reactance over rectification, making them essential in frequency modulation, phase-locked loops (PLLs), and voltage-controlled oscillators (VCOs).

Product Types & Key Variations
This category encompasses multiple varactor diode configurations, including:
- Abrubt Junction Varactors: Optimized for high-Q, low-loss performance in microwave systems.
- Hyperabrubt Varactors: Deliver steeper capacitance-voltage (C-V) curves for wide-tuning-range applications like TV tuners.
- GaAs Varactors: Offer superior high-frequency stability in 5G and millimeter-wave designs.
- Silicon Tuning Diodes: Cost-effective solutions for consumer electronics and industrial RF circuits.

Selection Guidelines
When sourcing varicap diodes, consider these critical parameters:
1. Capacitance Range (Cj): Match the diode s min/max Cj to your tuning requirements (e.g., 2 20pF for VCOs).
2. Q Factor: Select high-Q (>100) variants for low-noise oscillator designs.
3. Voltage Sensitivity (C-V Slope): Hyperabrupt types provide wider tuning per volt (e.g., 1:4 ratio).
4. Package Type: SOT-23 for compact PCBs; ceramic packages for high-power RF.

Why Choose This Category?
Varactors bridge analog tuning and digital control, reducing system complexity in modern RF architectures. Their compatibility with automated tuning algorithms makes them indispensable for 5G base stations, satellite transceivers, and IoT connectivity modules. For engineers prioritizing frequency agility, this category delivers proven performance with parametric precision.

Found 1160 items

HVC300BTRV-E

VARIABLE CAPACITANCE DIODE


MPV21004-206/TR

SI TVAR NON HERMETIC MMSM


MA46452-134

DIODE ,VARACTOR, GAAS, CHIP


MA46474-95

DIODE,GAASVARACTOR,1.25GAMMA


HVU316-1TRU-E

VARIABLE CAPACITANCE DIODE


HVC376BTRF-E

VARIABLE CAPACITANCE DIODE


HVC355BTRF-E

VARIABLE CAPACITANCE DIODE


SVC220-PM-TB-E

VARIABLE-CAPACITANCE DIODE (IOCA


1SV314(TPL3,F)

DIODE VARACTOR 10V SINGLE ESC


RKV607KM#R1

VARIABLE CAPACITANCE DIODE


HVC202A3TRF-E

VARIABLE CAPACITANCE DIODE


HVC321B1TRF-E

VARIABLE CAPACITANCE DIODE


HVD368BKRF-E

VARIABLE CAPACITANCE DIODE


HVD359KRF-E

VARIABLE CAPACITANCE DIODE


LV2209

VARIABLE CAPACITANCE DIODE, 33PF


SVC220-TB-E

FM VARICAP TWIN VR 8V


MA46416-134

DIODE,VARACTOR,GAAS 1.5


BB131,115

VHF VARIABLE CAPACITANCE DIODE


HVU350TRF-E

VARIABLE CAPACITANCE DIODE


RKV655KL#R6

VARIABLE CAPACITANCE DIODE


Top