GMV15007-GM1 22V HyperAbrupt Varactor Diode for RF Tuning

ElecSuppliers Part Number GuideAug 29, 2026

GMV15007-GM1 is a Microchip Technology silicon variable capacitance diode designed for RF tuning and frequency-control circuits. As a 22V HyperAbrupt GigaMite varactor, it provides voltage-dependent capacitance in a compact 0805 surface-mount package, making it suitable for RF designs where electronic tuning is preferred over mechanically adjustable components.

For engineers searching specifically for GMV15007-GM1, the important characteristics are its 22V reverse-voltage rating, low capacitance at higher reverse bias, high capacitance ratio and strong RF quality factor. These characteristics make the part particularly relevant to voltage-controlled RF networks and frequency-selective circuits.

GMV15007-GM1 Product Overview

GMV15007-GM1 is a silicon varactor diode from Microchip Technology's GigaMite RF diode product family. Unlike a conventional rectifier diode, a varactor is normally operated under reverse bias so that its junction capacitance changes with the applied voltage.

The capacitance variation allows the diode to act as an electronically controlled capacitor. This characteristic is useful in RF circuits where a control voltage needs to change resonance, frequency or impedance without using a mechanical tuning element.

Microchip's published data identifies GMV15007-GM1 as a 22V HyperAbrupt GigaMite device. The manufacturer's electrical data specifies a minimum breakdown voltage of 22V, while the capacitance is specified at different reverse-bias conditions to characterize its tuning behavior.

GMV15007-GM1 Electrical Characteristics

The electrical behavior of a varactor is best understood by looking at how its junction capacitance changes as reverse voltage increases.

For GMV15007-GM1, the published specification includes a capacitance of approximately 0.5 pF at 20V and 1 MHz. The device also has a typical C0/C20 capacitance ratio of 13, showing the substantial capacitance change available across the specified voltage range.

Another important characteristic is RF quality factor. Available specifications list a minimum Q value of 1200 at 4V and 50 MHz, while the Microchip family documentation provides the corresponding electrical characterization for the device.

These characteristics are important when the diode is used inside a resonant RF network. A larger capacitance tuning range can provide greater frequency adjustment, while a high Q value can help limit losses within the RF tuning network.

GMV15007-GM1 Voltage Rating

GMV15007-GM1 has a minimum peak reverse voltage or breakdown specification of 22V. This value should not be interpreted as the recommended continuous operating voltage for every circuit.

In practical RF designs, the control voltage and RF signal conditions should remain within the manufacturer's specified operating limits. Designers should also consider transient conditions and the voltage that can appear across the diode during circuit startup or abnormal operation.

GMV15007-GM1 Capacitance Ratio

The capacitance ratio is one of the most useful parameters when selecting a varactor.

GMV15007-GM1 has a typical C0/C20 ratio of 13. This means the junction capacitance changes significantly between zero reverse bias and a 20V reverse-bias condition. Such a characteristic can be useful when a circuit requires a relatively wide electronic tuning range.

The actual capacitance in a finished RF circuit will also depend on PCB parasitics, package effects, bias-network components and the operating frequency. Therefore, the diode's datasheet values should be treated as component-level reference points rather than the complete capacitance of the assembled circuit.

GMV15007-GM1 0805 Package

GMV15007-GM1 is available in an 0805 surface-mount package, corresponding to approximately 2012 metric dimensions. The compact package is useful for RF PCB layouts where board area and component placement are important.

The small footprint also allows the diode to be positioned close to inductors, resonators and RF transmission structures. This can help reduce unwanted interconnect length and associated parasitic effects.

However, compact packaging does not eliminate the need for careful RF layout. At high frequencies, even a short PCB trace can contribute measurable inductance or capacitance to the tuning network.

GMV15007-GM1 RF Tuning Applications

The primary value of GMV15007-GM1 comes from its voltage-controlled capacitance.

Voltage-Controlled Oscillators

A varactor can be incorporated into a voltage-controlled oscillator so that a control voltage changes the effective capacitance of the resonant network.

As the control voltage changes, the resonant frequency can move accordingly. This makes varactor diodes useful in frequency-generation and frequency-adjustment circuits.

RF Filters

GMV15007-GM1 can also be considered for electronically adjustable RF filter networks.

By placing the varactor within an appropriate resonant structure, the filter's electrical characteristics can be influenced by the applied bias voltage. This approach can be useful when a fixed-frequency filter is not sufficient for the application.

RF Matching Networks

RF impedance matching networks sometimes require a tunable reactive element. A varactor can provide electronic adjustment of the network without requiring a mechanical trimmer.

The suitability of GMV15007-GM1 depends on the required frequency range, RF power level, bias voltage and target impedance.

Frequency Tuning Circuits

Electronic frequency tuning is another important application area for varactors. GMV15007-GM1 can be evaluated in circuits where the operating frequency needs to be adjusted through a control voltage.

The actual tuning range depends not only on the diode but also on the inductance, fixed capacitors and other components connected to it.

GMV15007-GM1 RF PCB Design Considerations

Using a varactor successfully requires more than simply selecting the correct capacitance value.

The RF layout should minimize unwanted parasitic elements around the tuning diode. Short connections, controlled grounding and appropriate placement of the bias network can help maintain predictable RF performance.

The DC control path should also be isolated from the RF signal path where necessary. Bias resistors, RF chokes and bypass capacitors can be arranged to supply the required control voltage while limiting unwanted RF interaction.

Because GMV15007-GM1 has very small capacitance at higher reverse-bias voltage, PCB parasitic capacitance can become significant relative to the diode itself. This is an important consideration when designing a high-frequency tuning circuit.

GMV15007-GM1 Temperature Considerations

Available component specifications list an operating temperature range of approximately -55°C to +125°C.

RF circuits operating across a wide temperature range should account for changes in semiconductor characteristics and the surrounding passive components.

For precision frequency-control systems, the complete tuning network should therefore be evaluated over the intended temperature range rather than relying only on room-temperature measurements.

GMV15007-GM1 and GMV15007-GM1/TR

GMV15007-GM1 and GMV15007-GM1/TR are related ordering designations for the same basic GMV15007 device family.

The GMV15007-GM1 designation identifies the component itself, while the GMV15007-GM1/TR designation is associated with the tape-and-reel ordering format. Both versions should be checked against the supplier's current packaging and purchasing information before an order is placed.

For automated PCB assembly, the packaging format can be particularly important because component feeders and production lines are configured according to the supplied packaging.

Selecting GMV15007-GM1 for a New RF Design

When evaluating GMV15007-GM1, engineers should first define the RF frequency range and required tuning range.

The next step is to determine the required bias voltage and calculate the effective capacitance of the complete resonant network. The diode's capacitance is only one part of the final circuit because PCB traces, pads and other passive components contribute additional parasitic capacitance.

RF power is another important consideration. A varactor intended for small-signal tuning should not automatically be treated as a high-power RF switching component.

For production designs, the recommended application circuit and the latest manufacturer documentation should be checked before final component approval.

GMV15007-GM1 Component Sourcing

Searching for the complete GMV15007-GM1 part number is preferable to searching only for “Microchip varactor diode” because the GigaMite family contains multiple devices with different capacitance characteristics.

Current component listings identify GMV15007-GM1 as a Microchip Technology silicon variable-capacitance diode in an 0805 package.

For purchasing teams, the complete part number should be included in RFQs together with the required quantity, packaging preference and target delivery schedule.

ElecSuppliers provides a supplier-focused platform where electronic component buyers can search for specific manufacturer part numbers such as GMV15007-GM1 and evaluate available supplier information.

GMV15007-GM1 for RF Design and Component Procurement

GMV15007-GM1 combines a relatively high capacitance tuning ratio with a compact surface-mount package, making it a useful component to consider for electronically tunable RF circuits.

Its 22V breakdown specification, 0.5pF capacitance at 20V, typical C0/C20 ratio of 13 and high RF Q characteristics give engineers several useful parameters for evaluating its position within a tuning network.

For a new design, the most important step is to evaluate the complete RF network rather than selecting the varactor from a single capacitance figure. For an existing design, matching the exact GMV15007-GM1 ordering code and package is equally important.

GMV15007-GM1 therefore fits a specific component search intent: engineers and buyers looking for a compact Microchip varactor for RF frequency tuning, matching and other voltage-controlled RF applications.