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Capacitors (Fixed & Variable)
Surface Mount, Leaded, Arrays

Manufacturers & Services

Compared to resistors, capacitors are the second-most often used discrete electronic component. Inductors would be the third most used. Sure, every physical component has a combination of of all three components in the form of parasitics. These companies are the major suppliers of all forms of capacitors, from the smallest surface mount chip format to the monster metal can electrolytic capacitors used in power factor correction banks. They make axial lead, radial lead, electrolytic, tantalum, ceramic, fixed, variable, low voltage, high voltage, low ESR, and any other variation capacitors. As always, I ask you to please check with RF Cafe advertisers as your first choice.

My policy is to only list companies that actually manufacture product or offer services related to the page title subject. Product distributors and sales representatives are not listed (they have their own Distributors page). This helps guarantee that each listing offers a unique product or service.
AFM Microelectronics
AFM Microelectronics775-800-7919 or 858-222-1199

AFM Microelectronics manufactures Multi-Layer Ceramic Capacitors (MLCCs) for the RF / microwave industry.

Our Primary Product Offerings Include:

  • High Frequency; High-Q Capacitors
  • 0201 to 7676; SMT or Leaded
  • High Power, High Current Capacitors
  • High Temperature Capacitors
  • GBBL Substrates
  • Ultra Low Fire Dielectric Powder

Even Higher Q microwave MLCCs Coming Soon!

Ask about this new inexpensive technology using elements and terminations of higher conductivity!

AFM Microelectronics, San Diego, California

AFM Microelectronics |
858-222-1199 | San Diego, CA
RF/microwave multilayer capacitors, high power high current multilayer, high temperature high voltage multilayer, GBBL high K substrates for single layer capacitors, ultra low fire dielectric powder. Sizes range from 0201 - 13560, with operating voltages from 25 - 20k volts.

American Technical Ceramics (ATC) |
631-622-4700 | Huntington Station, NY
Multilayer and single layer ceramic capacitors and wire-wound chip inductors for RF/Microwave, resistors, attenuators.

843-946-0414 | Myrtle Beach, SC
Capacitors,  thin film directional couplers, Z-chip combo R&C impedance matching surface mount chip, ESD/surge protection, EMI/RFI feedthrough filters, AVX SPIMIC capacitor calculation, connectors - PCB, rack-and-panel, DIN, coaxial/RF, filters, resistors.

Cera-Mite (now Vishay)
402-563-6866 | Shelton, CT
Single-layer ceramic capacitors, ceramic positive temperature coefficient (PTC) thermistors, ceramic disc capacitors.

Compex |
856-335-2277 | West Berlin, NJ
Capacitors, submounts & mounting shorts, substrates.

Dielectric Laboratories |
315-655-8710 | Cazenovia, NY
Surface mount, high frequency, DC blocking, CapCAD capacitor calculation, thin film products.

800-689-3717 | Iselin, NJ
Capacitors, SAW, inductors/EMC components, nonlinear resistors, ferrite components, surge arresters.

Ion Beam Milling, Inc |
603-644-2326 | Manchester, NH
Since 1982 has manufactured thin film circuits for use in the microwave and photonics industries. Dry etch ion beam milling process to ensure a high level of repeatability. An array of standard products are ready to ship and we can create custom circuits to match your drawing. Ion Beam Milling also specializes in services. We can offer photolithography, milling, and/or dicing services to meet your needs. ISO 9001:2000 qualified.

Kemet |
864-963-6300 | Greenville, SC
Surface-mount capacitors in aluminum, ceramic and tantalum; and leaded capacitors in ceramic and tantalum. EMI/RFI feedthrough filters.

KOA Speer Electronics |
814-362-5536 | Bradford, PA
Resistors, capacitors, 3-terminal EMI/RFI filters, circuit protection, inductors, integrated components.

Maxwell Technologies |
858-503-3300 | San Diego, CA
BOOSTCAP energy storage UHm capacitors for battery replacement, high voltage capacitors, amplifiers

MicroMetrics (now Aeroflex | Metelics) | 888-641-7364 | Londonderry, NH
Tuning varactors, Schottky mixer and detector, PIN, point contact, step recovery diodes, thin film resistors, chip capacitors, thin film circuits.

Peregrine Semiconductor
Peregrine SemiconductorSan Diego, California

UltraCMOS - PeregrinePeregrine, a Murata company, is a leading fabless provider of high-performance RFICs. The company's solutions leverage UltraCMOS® technology, a patented, advanced form of SOI that enables the design, Test Boards - Peregrinemanufacture and integration of multiple RF, analog and digital functions onto a single chip. Peregrine holds more than 180 filed and pending patents and has shipped more than 2.5 billion UltraCMOS units.

Peregrine holds more than 180 filed and
pending patents and has shipped more than
2.5 billion UltraCMOS® units including:

40 GHz RF SOI Switch - Peregrine• Power Amplifiers      • RF Switches

 • Digital Step Attenuators

  • Digitally Tunable Capacitors

   • DC-DC Converters    • Power Limiters

    • Mixers, Upconverters & Downconverters

      • Monolithic Phase & Amplitude Controllers (MPAC)

        • Phase-Locked Loops (PLL) & Prescalers

Nanowave Technologies |
416-252-5602 | Canada
Thin film substrates, RF and electro-optic components (capacitors, resistors, attenuator pads) and subsystems (amplifiers, transceivers, transmitters).

NIC Components |
631-396-7500 | Melville, NY
Capacitors, attenuators, resistors, thermistors, inductors, ferrite beads, diodes, varistors.

Presidio Components |
858-578-9390 | San Diego, CA
Buried Single Layer, microwave & fiber optic capacitors, multilayer chip, SMPS/stacked, radial leaded, high voltage capacitors. Free Kent Simulator for single-layer capacitor modeling.

RF Power Exchange |
954-344-7379 | Weston, FL
Power tubes, RF & microwave transistors, vacuum capacitors, RF amplifiers/modules, military radio spare parts.

Susumu | | +81-25-552-3988 | Niigata-Pref., Japan
Resistors, capacitors, inductors, coils, filters, sensors.

Syfer Technology |
+44 1603 723300 | Norfolk, Suffolk, England
Syfer has 25+ years experience in manufacturing ceramic capacitors, both SMD and thru-hole EMI filters and EMI Power Filters.

Tusonix |
520-744-0400 | Tucson, AZ
EMI/RFI filters, surface mount EMI filters, variable trimmer capacitors, filtered terminal blocks, custom EMI filter plate assemblies, ceramic disc capacitors.

TXTLinX | | 973-758-0808 | Livingston, NJ
Provides a complete, searchable list of companies and their products, or articles, featured in Microwave Product Digest. Use the Forum to participate in a dynamic discussion about our represented companies and their products.

US Microwaves |
408-970-9680 | Santa Clara, CA
Products include attenuators, diodes, inductors, substrates, capacitors, dividers, resistors, terminations, couplers, filters, MMICs, LDOs.

Voltronics |
973-586-8585 | Denville, NJ
Multi-turn trimmer, ceramic chip trimmer, non-magnetic yrimmer, non-magnetic high Q multi-layer porcelain chip capacitors.

Wurth Electronics Midcom
605-886-4385 | Watertown, SD
+49 79 42 945 - 0 | Waldenburg, Germany
Custom and power magnetics, EMC components, common mode chokes, capacitors, transformers, RF inductors, printed circuits boards, terminal blocks, automotive magnetic components, electronic displays, LEDs, control units, and keypads. Surface mount and through-hole packages available. Free samples of catalog items are available on request.

Yageo |
425-492-2818 | Woodinville WA
Capacitors, resistors, inductors, MLCC's, X2Y products.

Related Pages on RF Cafe
- Capacitors & Capacitance Calculations
- Capacitor Color Codes
- Capacitance Conversions
- Capacitor Dielectrics
- Standard Capacitor Values
- Capacitor Vendors
- The Noble Art of De-Coupling