GC15008-150A/TR

Overview

The GC15008-150A/TR is a frequency linear tuning varactor from the GC15000 series, manufactured by Microchip Technology. It features a silicon epitaxial mesa design optimized for wideband linear tuning in VCO and filter applications up to Ku band. Key electrical parameters include a breakdown voltage of 22V at 10μA leakage, a capacitance of 2.0pF at -4V bias, and a sensitivity of 0.11. The device offers a typical Q factor of 900 at 4V and 50MHz, with a tuning ratio (CJ0/CJ15) of 13:1. It operates within a temperature range of -55°C to +125°C.

Feature Summary

• Provides wideband linear tuning characteristics suitable for octave tuning without external linearization.
• Features superior passivation for high reliability, low leakage current, and low surface noise.
• Delivers exceptional Q values compared to ion-implanted hyperabrupt diodes.
• Utilizes computer-controlled grown junction epitaxy for consistent performance.

Applications

• Voltage Controlled Oscillators (VCOs)
• Filters
• Modulators
• Amplifiers

Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors or direct factory channels. Confirm RoHS compliance status and specific package style requirements prior to ordering. Ensure proper ESD handling procedures are followed during storage and assembly due to the sensitivity of the silicon epitaxial mesa structure.

Selection Notes

Select this model based on required capacitance at -4V bias and sensitivity coefficient. Evaluate the trade-off between Q factor and capacitance for the target operating frequency. Ensure circuit designs accommodate the 22V breakdown voltage limit. Consider package options such as chip style or surface mount variants depending on integration needs.

Part Context

This component belongs to the GC15000 series of frequency linear tuning varactors originally developed by Microsemi. The series includes models ranging from GC15001 to GC15013, offering various capacitance values and tuning ratios. These devices are designed for microwave applications requiring stable linear tuning characteristics across wide bandwidths.

Replacement Considerations

Direct substitutes within the same series include GC15007-00 and GC15009-00, which share similar breakdown voltages but differ in capacitance and sensitivity. Verify compatibility with existing circuit constraints before substitution.

FAQ

What is the typical Q factor of the GC15008-150A/TR?

The typical Q factor is 900, measured at a reverse bias voltage of 4V and a frequency of 50MHz.

Does the GC15008-150A/TR require external linearization?

No, the frequency linear characteristics allow for over one octave linear tuning in suitable circuits without the need for external linearization.

What is the maximum operating temperature for this varactor?

The maximum operating temperature is +125°C.