Powerfilm™ Chip Attenuators

Up to 250 Watts, Up to 18 GHz

Powerfilm chip attenuators from API Inmet come in two varieties: "Temperature Stable" (standard) and "Temperature Variable" attenuators. The standard attenuators reduce the RF power uniformly at all temperatures while the temperature-variable chips are designed to reduce their attenuation at elevated temperatures to provide optimal response needed in signal- leveling applications. Chip attenuators are used in amplifier circuits, receivers, up/down converters, phase-matched arrays, and switching applications. Depending on desired specifications, chips are fabricated on BeO, Aluminum Nitride, or Alumina ceramics with either thin or thick resistors. Other designs, values and options may be available upon request.

 

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PRODUCT SOLUTIONS

ModelPower (Watts)Frequency (GHz)Ceramic SubstrateResistor FilmWrap OptionsFinish OptionWidth (Inches)Length (Inches)Height (Inches)
PCAAF 0.75 8 Alumina Thin F N, T, H, G 0.060 0.075 0.010
PCAAL 0.75 18 Alumina Thin Tabbed G, T, H 0.060 0.075 0.040
PCAAW 0.75 18 Alumina Thin W N, T, H, G 0.060 0.075 0.010
PCAA 0.75 18 Alumina Thin   N, T, H, G 0.060 0.075 0.010
PCAF 1.5 4 Alumina Thin F N, T, H, G 0.125 0.150 0.010
PCA 1.5 12.4 Alumina Thin   N, T, H, G 0.125 0.150 0.010
PCAW 1.5 12.4 Alumina Thin W N, T, H, G 0.125 0.150 0.010
PCAL 1.5 12.4 Alumina Thin Tabbed G, T, H 0.125 0.150 0.040
KPA10 10 4 BeO Thin G N, T, H 0.100 0.200 0.040
KPA20 20 4 BeO Thin G N, T, H 0.250 0.250 0.040
KPA50 50 1 BeO Thin G N, T, H 0.375 0.375 0.040
TPA100 100 0.4 BeO Thin G N, T, H 0.500 0.500 0.040
KPA100 100 0.5 BeO Thin G N, T, H 0.500 0.500 0.40
2KNA100 100 2.3 AlN Thin & Thick G, Tabbed N, T, H 0.350 0.225 0.040
3KNA100 100 3 AlN Thin G, Tabbed N, T, H 0.375 0.250 0.040
2KNA150 150 1.9 AlN Thin & Thick G, Tabbed N, T, H 0.375 0.250 0.040
1KNA250 250 1 AlN Thin & Thick G, Tabbed N, T, H 0.375 0.375 0.040
2KNA250 250 2.3 AlN Thin & Thick G, Tabbed N, T, H 0.500 0.500 0.040

Finish Options: N - Silver over Nickel, T - Tin-lead Solder, H - Lead-free Solder, G - Gold

Up to 18GHz

Powerfilm temperature-variable chip attenuators are designed to reduce their attenuation at elevated temperatures to provide optimal response needed in signal-leveling applications. TCA chips are fabricated on Alumina ceramics with proprietary thick resistors. Other designs, values and options may be available upon request.

 

To requests samples, please click the "Contact Us" button!

 
ModelPower (Watts)Frequency (GHz)VSWRTemperature Coefficient of AttenuationCeramic SubstrateResisitor FilmWrapsFinish OptionWidth (Inches)Length (Inches)Height (Inches)
TCAAF-N05 0.2 18 1.5 -0.0005 Alumina Thick F N, T, H 0.060 0.075 0.010
TCAA-N05 0.2 18 1.5 -0.005 Alumina Thick   N, T, H 0.060 0.075 0.010
TCAAW-N05 0.2 18 1.5 -0.005 Alumina Thick W N, T, H 0.060 0.075 0.010
TCAF-N05 1.5 12 1.5 -0.005 Alumina Thick F N, T, H 0.125 0.150 0.010
TCA-N05 1.5 12 1.5 -0.005 Alumina Thick   N, T, H 0.125 0.150 0.010
TCAW-N05 1.5 12 1.5 -0.005 Alumina Thick W N, T, H 0.125 0.150 0.010
TCAF-N09 1.5 12 1.5 -0.009 Alumina Thick F N, T, H 0.125 0.150 0.010
TCA-N09 1.5 12 1.5 -0.009 Alumina Thick   N, T, H 0.125 0.150 0.010
TCAW-N09 1.5 12 1.5 -0.009 Alumina Thick W N, T, H 0.125 0.150 0.010
F WrapG WrapTabbed
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W Wrap No Wrap   
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Designed to help the engineer select the perfect component for their application, PowerfilmTM Design Kits offer a variety of components conveniently packaged and labeled for easy access.Powerfilm design kits are available for the most common PCA, PCAA, and TCA attenuator chips in a variety of wrap configurations and finishes. A table below describes the contents of the kit and is linked to the datasheet for the products included in the kit. Individual components in the Inmet Powerfilm Design Kits are available in prototype and small product run quantities. Other designs, values and options may be available upon request. 

 

Model

Power

(Watts)

Frequency

(GHz)

dB Values Included Cermaic Film Wrap Options Finish

Width

(Inches)

Length

(Inches)

Height

(Inches)

PCA-9005 1.5 12.4 0-10, 20 Alumina Thin   Silver 0.125 0.15 0.01
PCAA-9002 0.75 18 0-10, 20 Alumina Thin   Silver 0.06 0.075 0.01
PCAA-T9012 0.75 18 0-10, 15, 20 Alumina Thin   Tin-Lead 0.06 0.075 0.01
PCAAF KIT 2 0.75 8 1,2,3,4, 5 Alumina Thin F Silver 0.06 0.075 0.01
PCAAF-9003 0.75 8 0-10, 20 Alumina Thin F Silver 0.06 0.075 0.01
PCAAF-T9007 0.75 8 0-10, 15, 20 Alumina Thin F Tin-Lead 0.06 0.075 0.01
PCAAW-9004 0.75 18 0-10, 20 Alumina Thin W Silver 0.06 0.075 0.01
PCAF-9006 1.5 4 0-10, 20 Alumina Thin F Silver 0.125 0.15 0.01
PCAW-9000 1.5 12.4 1,2,3,4, 5 Alumina Thin W Silver 0.125 0.15 0.01
PCAW-9001 1.5 12.4 0-10, 20 Alumina Thin W Silver 0.125 0.15 0.01
TCAF-9008 2 12 1,2,3,4, 5, 6 Alumina Thin F Silver 0.125 0.15 0.01
TCAF-9011 2 12 2,3,4,5 Alumina Thin F Silver 0.125 0.15 0.01

These measurement-based models, available for selected lnmet Brand PowerFilm™ devices, are for use with microstrip applications.

View Powerfilm S-Parameter Data and Circuit Models!