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Home > Products > Discrete Semiconductor Products > Diodes > Variable Capacitance (Varicaps, Varactors)

Microchip Technology GC15007-150A

Name: GC15007-150A
Brand: Microchip Technology
SKU: GC15007-150A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: GC15007-150A

Manufacturer:: Microchip Technology

Category:: Variable Capacitance (Varicaps, Varactors)

Package:: Die

Datasheet:: GC15007-150A.pdf

Description:: SI TVAR NON HERMETIC EPSM SMT

Quantity:: RFQ Add To RFQ list

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Inventory:6,185

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Product details

Overview

GC15007-150A from Microsemi is a frequency-linear tuning varactor diode designed for high-linearity voltage-controlled oscillator (VCO) and filter tuning in Ku-band RF systems. It delivers 1.0 pF capacitance at −4 V, 0.2 pF at −20 V, 13:1 tuning ratio (C_J0/C_J20), 1000 typical Q at 4 V/50 MHz, and 0.11 sensitivity coefficient - enabling octave-spanning linear frequency tuning without external compensation circuits.

For engineers reviewing the GC15007-150A datasheet, GC15007-150A pinout, GC15007-150A application, or GC15007-150A equivalent, key selection criteria include reverse bias voltage range (0–22 V), low leakage current (<50 nA @ 20 V), RoHS-compliant gold-plated terminals, surface-mount compatibility, and verified performance through 18 GHz in modulated VCOs and bandpass filters.

Technical Context

This FLTVAR™ device uses computer-controlled grown junction epitaxy to achieve precise C-V linearity across its full tuning range. Its hyperabrupt doping profile yields constant sensitivity (S = 0.11) and supports stable modulation response up to Ku-band frequencies.

The diode operates from −55 °C to +125 °C with storage capability down to −65 °C and up to +150 °C. Its low surface noise and high Q minimize FM noise in VCOs, making it especially suitable for phase-critical communication and radar front-ends requiring clean spectral output.

Key Specifications

Parameter	Value and Actual Design Meaning
Capacitance @ −4 V	1.0 pF ±10% - sets center-frequency anchor point in VCO tank circuits
Capacitance @ −20 V	0.2 pF typical - defines minimum capacitance for maximum frequency tuning endpoint
Tuning Ratio C_J0/C_J20	13:1 typical - enables >1-octave linear frequency sweep without calibration
Sensitivity Coefficient	0.11 - ensures constant ∆f/∆V over full bias range for predictable modulation
Q Factor	1000 typical @ 4 V, 50 MHz - reduces resonator loss and improves VCO phase noise
Max Leakage Current	<50 nA @ 20 V - preserves tuning stability and low-power bias network integrity
Operating Temp Range	−55 °C to +125 °C - supports deployment in aerospace, defense, and industrial RF modules

Pinout & Package

GC15007-150A is supplied in non-hermetic surface-mount Package Style 450A-E, featuring gold-plated terminals optimized for RF hybrid and MMIC assembly. The package includes anode and cathode terminals with defined thermal and electrical parasitics for impedance-matched stripline integration.

Pin/Terminal	Circuit Role	Design Meaning
Anode	DC Bias Input / RF Ground Reference	Connected to ground plane in shunt-tuned VCO topologies; carries DC tuning current
Cathode	RF Signal Node / Tuning Port	Interfaces directly with LC tank or filter resonator; voltage-controlled capacitance appears here

Key Features

Feature	Design Value
Frequency-linear C-V response	Constant 0.11 sensitivity enables direct voltage-to-frequency mapping in PLL/VCO loops
High Q factor (1000 @ 50 MHz)	Reduces phase noise floor by >10 dB compared to standard hyperabrupt varactors
Low surface noise	Minimizes AM-to-FM conversion in modulated VCOs, critical for QAM/OFDM transmitters
Ku-band functional range	Validated operation up to 18 GHz supports satellite comms, radar, and 5G mmWave test equipment
RoHS-compliant gold finish	Enables lead-free reflow assembly without intermetallic degradation or solder wettability loss

Applications

Phase-Locked Loop (PLL) VCOs	Ku-Band Bandpass Filters
Use Scenario: Wideband frequency synthesis in satellite transponders requiring 12–18 GHz coverage with <±5 kHz phase noise at 100 kHz offset. IC Role / Device Role / Timing Role: Voltage-controlled tuning element in Colpitts VCO core, defining instantaneous oscillation frequency via analog tuning voltage. Use Value: 13:1 tuning ratio and 0.11 sensitivity allow single-loop PLL design with no varactor bank switching or digital calibration.	Use Scenario: Reconfigurable channel-select filter in phased-array radar front-end operating at 15.5 GHz with 200 MHz bandwidth. IC Role / Device Role / Timing Role: Tunable shunt capacitor in coupled-resonator topology, adjusting center frequency under FPGA-controlled DAC voltage. Use Value: Low leakage and high Q maintain insertion loss <2.1 dB and stopband rejection >45 dB across full tuning range.
FM Modulated Oscillators	Test Equipment Local Oscillators
Use Scenario: Direct FM generation in microwave signal generators where modulation index must remain stable across 10:1 frequency sweep. IC Role / Device Role / Timing Role: Linear tuning element in wide-deviation VCO, biased at fixed DC point while AC modulation signal superimposes on cathode. Use Value: Constant sensitivity (0.11) ensures flat modulation response and eliminates pre-distortion circuitry.	Use Scenario: Agile LO source in vector network analyzers requiring rapid, repeatable frequency hopping between 10–18 GHz points. IC Role / Device Role / Timing Role: Primary tuning diode in YIG-tuned or dielectric-resonator hybrid oscillator architecture. Use Value: Octave-spanning linear tuning enables single-VCO coverage of full Ku-band without mechanical retuning or module swapping.

Phase-Locked Loop (PLL) VCOs

Ku-Band Bandpass Filters

Use Scenario: Wideband frequency synthesis in satellite transponders requiring 12–18 GHz coverage with <±5 kHz phase noise at 100 kHz offset.

IC Role / Device Role / Timing Role: Voltage-controlled tuning element in Colpitts VCO core, defining instantaneous oscillation frequency via analog tuning voltage.

Use Value: 13:1 tuning ratio and 0.11 sensitivity allow single-loop PLL design with no varactor bank switching or digital calibration.

Use Scenario: Reconfigurable channel-select filter in phased-array radar front-end operating at 15.5 GHz with 200 MHz bandwidth.

IC Role / Device Role / Timing Role: Tunable shunt capacitor in coupled-resonator topology, adjusting center frequency under FPGA-controlled DAC voltage.

Use Value: Low leakage and high Q maintain insertion loss <2.1 dB and stopband rejection >45 dB across full tuning range.

FM Modulated Oscillators

Test Equipment Local Oscillators

Use Scenario: Direct FM generation in microwave signal generators where modulation index must remain stable across 10:1 frequency sweep.

IC Role / Device Role / Timing Role: Linear tuning element in wide-deviation VCO, biased at fixed DC point while AC modulation signal superimposes on cathode.

Use Value: Constant sensitivity (0.11) ensures flat modulation response and eliminates pre-distortion circuitry.

Use Scenario: Agile LO source in vector network analyzers requiring rapid, repeatable frequency hopping between 10–18 GHz points.

IC Role / Device Role / Timing Role: Primary tuning diode in YIG-tuned or dielectric-resonator hybrid oscillator architecture.

Use Value: Octave-spanning linear tuning enables single-VCO coverage of full Ku-band without mechanical retuning or module swapping.

Equivalent & Alternatives

The following parts are listed as comparable options for similar frequency-linear tuning varactor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
GC15007-00	Chip-only form; no package parasitics; requires hybrid mounting	Used in custom MMIC designs where board-level parasitics must be minimized	Select GC15007-00 only when integrating into ceramic substrate hybrids with wire-bonded interconnects
GC15007-17	Hermetic stripline SMT package; higher cost; tighter C-V tolerance	Preferred for space-grade or high-reliability military radar modules	Choose GC15007-17 when environmental sealing and long-term parameter stability outweigh cost constraints

Compared with GC15007-00 (bare die) and GC15007-17 (hermetic SMT), GC15007-150A offers optimized RF performance per dollar in commercial Ku-band test equipment and terrestrial microwave links - balancing package-induced capacitance, thermal dissipation, and assembly yield without hermetic overhead.

Availability

GC15007-150A is available at Aetrix Electronics and suitable for Ku-band VCOs, reconfigurable RF filters, and FM-modulated oscillator designs requiring stable component supply, consistent C-V linearity, and RoHS-compliant surface-mount integration.

Supply support for GC15007-150A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, RF, and timing solutions for aerospace, defense, and industrial markets.

The GC15000 series was developed specifically for wideband, linear-tuning RF applications - targeting Ku-band VCOs, agile filters, and low-noise modulators where conventional varactors fail to deliver consistent sensitivity or Q.

FAQ

What is the maximum reverse bias voltage rating for GC15007-150A?

The absolute maximum reverse bias voltage for GC15007-150A is 22 V at 25 °C. Operation beyond this voltage risks irreversible junction breakdown. Derating is recommended above 85 °C ambient; consult Microsemi's GC15000 series datasheet for temperature-dependent safe operating area curves. GC15007-150A must never be forward-biased during normal operation.

Does GC15007-150A require special ESD handling procedures?

Yes - GC15007-150A is classified as ESD-sensitive per ANSI/ESDA-JEDEC JS-001. It must be handled using Class 1A ESD controls: grounded wrist straps, dissipative mats, ionized air, and shielded packaging. Static discharge exceeding 250 V HBM can degrade C-V linearity or increase leakage. GC15007-150A devices shipped by Aetrix are packed in static-shielded trays with humidity-controlled desiccant.

How does the 0.11 sensitivity coefficient impact VCO design with GC15007-150A?

The 0.11 sensitivity coefficient means ∆C/∆V remains constant across the full 0–22 V tuning range, enabling truly linear ∆f/∆V response in properly designed VCO tanks. This eliminates need for lookup tables or analog correction networks. GC15007-150A's fixed S-value simplifies loop filter design in PLLs and improves settling time in frequency-hopping systems.

Is GC15007-150A compatible with lead-free reflow soldering profiles?

Yes - GC15007-150A features a gold terminal finish compliant with J-STD-020D moisture sensitivity level 1 and qualified for peak reflow temperatures up to 260 °C (per JEDEC). Standard SAC305 profile (217–220 °C liquidus, 60–90 sec above liquidus) is fully supported. No pre-bake is required unless exposed to >60% RH for >168 hours.

What is the guaranteed capacitance tolerance for GC15007-150A at −4 V?

GC15007-150A has a guaranteed capacitance tolerance of ±10% at −4 V, as specified in the official Microsemi GC15000 series datasheet (Rev: 2008-12-08, Page 2). This tolerance applies to all units shipped in Package Style 450A-E. Tighter tolerances are available under custom test screening but not standard for GC15007-150A.

GC15007-150A Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: Die

Packaging:: Tape & Reel (TR)

Product Status:: Active

Capacitance @ Vr, F:: 0.2pF @ 20V, 1MHz

Capacitance Ratio:: 13.0

Capacitance Ratio Condition:: C0/C20

Voltage - Peak Reverse (Max):: 22 V

Diode Type:: Single

Q @ Vr, F:: 1000 @ 4V, 50MHz

Operating Temperature:: -55°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: Chip

GC15007-150A FAQ

1.How can I place an order for GC15007-150A through Aetrix?

Please submit a Request for Quotation (RFQ) for GC15007-150A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for GC15007-150A reliable?

The price and inventory of GC15007-150A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GC15007-150A is usually 5 days.

3.What payment methods are accepted for GC15007-150A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GC15007-150A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for GC15007-150A?

GC15007-150A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your GC15007-150A order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for GC15007-150A?

For technical support, including GC15007-150A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GC15007-150A requirements.

6.How does Aetrix verify that GC15007-150A is sourced from the original manufacturer or authorized distributors?

All GC15007-150A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that GC15007-150A meets industry standards.

7.What is the process for return or replacement of GC15007-150A?

All GC15007-150A units undergo pre-shipment inspection (PSI). If there is an issue with GC15007-150A, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The GC15007-150A part is unused and in its original packaging.

Return procedure for GC15007-150A:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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