Peregrine Semiconductor
San Diego, CA 92121
Oct 19, 2009 Supplied in 3 x 3 x 0.85 mm package, 2-bit PE43204 leverages UltraCMOS(TM) and HaRP(TM) technologies to serve 4G Tx/Rx applications. It supports 18 dB attenuation range in 6 and 12 dB steps, protects receive path, and prevents overdriving of ADC. With no gate lag or phase drift, DSA delivers accelerated settling time and Input IP3 greater than +61 dBm at 3 GHz. Typ switching time is 26 nsec, with +0.2 dB attenuation accuracy across DC to 3 GHz operating range.

GAO FiberOptics Inc.
Toronto   Canada
Oct 14, 2009 Operating at wavelengths from 1,290-1,625 Nm and temperature range of -5 to 75°C, manual variable optical attenuator is designed for optical power control and equalization of WDM systems, FTTx, OADM ,OXC, CATV, and measurement instruments. It features insertion loss of less than 1.5 dB, return loss of over 55 dB, and polarization dependent loss of less than 0.2 dB. Maximum handling power is 300 mW and attenuation level ranges from 10-45 dB.

GAO Tek Inc.
Toronto M1B2K4  Canada
Sep 01, 2009 Offering attenuation levels of 0-25 dB at 0.5 dB intervals, plug-in fixed attenuator provides high stability, low insertion loss, and works at wavelengths from 1,260-1,620 Nm with maximum handling power of 1 W. Device is suited for use in telecom networks, optical fiber CATV, measuring instruments, local area networks, and optical fiber sensors. Optimized for doped fiber technology, units are available with different connector types and end face configurations.

International Manufacturing Services, Inc. (IMS)
Portsmouth, RI 02871
Jul 22, 2009 Measuring 0.375 x 0.250 in., VGX-3725WA high power aluminum nitride chip attenuator features wraparound terminals for solder or epoxy attachment and dissipates 100 W at 100°C baseplate temperature. Standard impedance is 50W and attenuation values to 30 dB are available with 0.5 dB increments. Attenuation accuracy starts at ±0.2 dB while achievable VSWR is 1.3:1 to 6 GHz depending on implementation.

GAO Embedded Inc.
Toronto 12345  Canada
Jun 24, 2009 Featuring low insertion loss, high return loss and low PDL, PC board mountable variable optical attenuator is used for power control and equalization for WDMs, FTTx, CATV, OADM and measurement instruments. With operating wavelength between 1,290-1,625 nm, unit has maximum handling power of 1 W, and attenuation level from 10-45 dB at intervals of 0.5 dB. Manual attenuator is suited for fiber optic systems.

Vaunix Technology Corporation
Haverhill, MA 01835
Jun 18, 2009 Offering 63 dB of programmable attenuation through 6 GHz, Lab Brick LDA-102 and LDA-602 offer frequency coverage of 0.1-1000.0 MHz and 6-6,000 MHz, respectively. Both are powered and controlled by connection to PC's USB port or powered USB hub. Based on GaAs MMIC attenuator technology, devices offer 0.5 dB attenuation resolution by means of programmable steps from 0.5-63 dB. Both are designed for 50 W environments and are rated for max switching speed of 80 ns.

Elma Electronic Inc.
Fremont, CA 94538
Jun 02, 2009 Available in 24 positions and in versions from 1-6 channels, MV Series Stepped Attenuators work well within specifications after 50,000 rotations. Precision audio input selector switches are available in 1-4 pole versions. They feature 0.1% tolerance, low-noise, thin-film resistors coveted by audiophiles, and 3 micron gold contact system employs PCB traces. Units require only 3-wire hookup for audio in, audio out, and ground.

International Manufacturing Services
Portsmouth, RI 02871
Mar 13, 2009 Model VGX-2010WA dissipates 20 W at 100°C baseplate temperature, and features wraparound terminals for solder or epoxy attachment. Achievable VSWR is 1.3:1 to 12 GHz depending on implementation and attenuation accuracy starts at ±0.2 dB. Standard impedance of 50 W and attenuation values upto 30 dB are available including 0.5 dB increments.

Crystek Corporation
Ft. Myers, FL 33913
Feb 19, 2009 Packaged in rugged SMA housing, Crystek CATTEN series operate in frequency range of DC to 3 GHz. They provide 1 W of power dissipation (0.5 W for 15 dB and 20 dB models) and impedance of 50 W. With operating temperature range between -40 to +85°C, products suit test equipment, RF lab use and embedded applications.

International Manufacturing Services
Portsmouth, RI 02871
Nov 14, 2008 Available in 0402, 0603, 0805, 1206, and 1612 sizes, A-Series 63 mW precision thin film attenuators offer dB values from -0 to -10 dB. They feature low VSWR of 1.3:1, and RoHS compliant 100% tin terminations with nickel barrier layer for solderability and mechanical integrity. Product is available in 50 piece MOQ for bulk and 1000 piece MOQ for tape and reel.

International Manufacturing Services, Inc. (IMS)
Portsmouth, RI 02871
Jul 25, 2008 Available in 6 standard sizes, IAX Series surface mountable thick film attenuators feature ±0.2 dB attenuation accuracy and standard attenuation values of 0-70 dB in 0.5 dB increments. Suited for RF and microwave applications and rated to 15 W in 3725 size, they offer nominal impedance of 50 W. Platinum Silver terminations are available in both WA and SG styles for solder or epoxy attachment.

Agilent Technologies, Inc
Santa Clara, CA 95051
Jun 20, 2008 Designed in half-rack, 2-unit high form factor, J7211A/B/C attenuation control units operate in dc to 6, dc to 18, and dc to 26.5 GHz frequency bands, respectively. They feature up to 121 dB of attenuation with selectable step values and programmable attenuation sweep function that enables user-defined sweep time, attenuation values, and number of cycles. Units also feature less than 0.03 dB insertion loss repeatability per section over their entire 5 million life cycle.

International Manufacturing Services, Inc. (IMS)
Portsmouth, RI 02871
Mar 27, 2008 Suited for RF and microwave applications, Model IMS2479 alumina attenuator is available in -1 to -10 dB attenuation values in 1 dB increments with attenuation accuracy starting at ±0.3 dB. It offers operating frequency of dc to 3 GHz with rated power of 40 mW.

IRC, Advanced Film Div.
Corpus Christi, TX 78411
Jan 07, 2008 Rated at 10 W when heatsinked, PAT3060P RF Power Attenuator features frequency range from DC-10 GHz with VSWR of less than 1.3 at 10 GHz, and attenuation values of 0-10 dB and 20 dB. With power ratings to 250 W, surface-mount RFTF Terminator ranges from DC-3 GHz with VSWR of less than 1.1 at 3 GHz and stray capacitance of less than 0.1 pF at 250 W. Both are suited for RF power meters, RF and microwave power amplifiers, radar, satellites, and avionics.

G.T. Microwave, Inc.
Randolph, NJ 07869
Oct 31, 2007 Measuring 1.7 x 1.8 x 0.75 in., Model A6P-69N-0MG Multi-Octave Digitally Controlled Miniature PIN Diode Attenuator operates from 2-18 GHz with 64 dB Dynamic Range in 0.25 dB steps. Across entire band, VSWR is less than 2.1:1, insertion loss is less than 4.5 dB, and solution is capable of handling +13 dBm CW, 1.0 W max. With 8 BIT Binary and TTL compatible logic, switching speed is less than 1.5 µsec from any state to any state.

G.T. Microwave, Inc.
Randolph, NJ 07869
Oct 31, 2007 Model A0P-83N-0 Phase Invariant PIN Diode Attenuator is capable of 45 dB dynamic range with monotonic 0.18 dB steps. It features attenuation flatness of ±2.25 dB, delta phase vs. attenuation of 15° max, VSWR of 1.6:1, and insertion loss of 5 dB. Digitally controlled via 8 bits of TTL compatible binary logic, device has switching speed of less than 350 nsec. Unit can handle +15 dBm CW or 1.0 W max in 2.0 x 3.0 x 0.75 in. package.

Timbercon, Inc.
Lake Oswego, OR 97035
Sep 21, 2007 Dual wavelength attenuated Armadillo loopback provides wavelength-independent signal loss simulation across multiple applications. While uniform attenuation technology enables same precision optical loss at 1,310 and 1,550 nm, overall product design eliminates problems with ferrule alignment, fiber breakage, and performance degradation. Solution is available with any level of attenuation from 0-20 dB, with range of ruggedization and customization options.

Agilent Technologies, Inc.
Palo Alto, CA 94303
Sep 14, 2007 Designed for bench-top and ATE environments, models 11713B/C offer GUI along with front-panel and remote-control features that aid in design validation and automated testing. Model 11713B drives combination of 2 programmable attenuators and 2 SPDT switches, or up to 10 SPDT switches concurrently. Model 11713C controls combination of 4 programmable attenuators and 4 SPDT switches, or up to 20 SPDT switches concurrently. Both models offer various connectivity options.

International Manufacturing Services, Inc. (IMS)
Portsmouth, RI 02871
Jul 19, 2007 Offered in case sizes from 0805 to 2512, surface mountable IAX Series features power ratings to 4 W and operates with favorable return loss to 18 GHz. Attenuation accuracy starts at ±0.2 dB, and standard attenuation values are 0-70 dB, including 0.5 dB increments. Featuring nominal impedance of 50 W, attenuators are available with platinum silver terminations in both Wraparound and Single Wrap to Groundpad styles for solder or epoxy attachment.

International Manufacturing Services, Inc. (IMS)
Portsmouth, RI 02871
Apr 20, 2007 Supplied in 0805-size package, IMA2404 is suited for use in RF/microwave applications and communications-oriented circuitry. Surface-mount, thick film product, operational to 15 GHz in properly matched continuous 50 ohm system, is available from 1-70 dB in 1 dB increments. With tolerance as low as ±0.2 dB, product offers input power handling capability to 400 mW using proper thermal management techniques.