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S-Parameter Data and Circuit Models

These measurement-based models, available for selected lnmet Brand PowerFilm™ devices, are for use with microstrip applications. The models account for printed circuit board related parasitic effects and are substrate scalable, in that substrate height, dielectric constant, loss tangent, and solder pad terminal dimensions are input parameters. Each attenuator series model is dB value scalable and the resistor models are available for a variety of ohm values.

Each model includes complete documentation detailing the test fixtures used, measurement conditions, range of validity, and model-to-measurement data comparisons.

TCAF N05 Series Temperature Variable Chip Attenuators S-Parameter

Scattering parameters of APITech Inmet Brand TCAF N05 series of temperature variable attenuators. All testing performed on a 30 mil thick Rogers RO4350B microstrip board, with the attenuator circuit facing up.

Attenuator Values 2, 3, 4, 5, 6 dB

  • Model and S-Parameter data is available here.

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PCAF Series Chip Attenuators

Scattering parameters of APITech Inmet Brand PCA and PCAF series of chip attenuators. All testing performed by Modelithics, Inc. on a 20 mil thick Rogers R04003 microstrip board, with the attenuator circuit facing up (PCAF) adn facing down (PCA).

Attenuator Values 1, 2, 3, 4, 5, 6, 10, 20 dB

  • Model and S-Parameter data on additional dB values is available here.

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(Full input/output and ground terminal wraps)

PCA Series Chip Attenuators (No terminal wraps)

Scattering parameters of APITech Inmet Brand PCA and PCAF series of chip attenuators. All testing performed by Modelithics, Inc. on a 20 mil thick Rogers R04003 microstrip board, with the attenuator circuit facing up (PCAF) adn facing down (PCA).

Attenuator Values 1, 2, 3, 4, 5, 6, 10, 20 dB

  • S-Parameter data on additional dB values is available here.

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PCAAF Series Chip Attenuators

Scattering parameters of APITech Inmet Brand PCAA and PCAAF series of chip attenuators. All testing performed by Modelithics, Inc. on a 20 mil thick Rogers R04003 microstrip board, with the attenuator circuit facing up (PCAAF) and facing down (PCAA).

Attenuator Values 1, 2, 3, 4, 5, 6, 10, 20 dB

  • Model and S-Parameter data on additional dB values is available here.

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(Full input/output and ground terminal wraps)

PCAA Series Chip Attenuators (No terminal wraps)

Scattering parameters of APITech Inmet Brand PCAA and PCAAF series of chip attenuators. All testing performed by Modelithics, Inc. on a 20 mil thick Rogers R04003 microstrip board, with the attenuator circuit facing up (PCAAF) and facing down (PCAA).

Attenuator Values 1, 2, 3, 4, 5, 6, 10, 20 dB

  • Model and S-Parameter data on additional dB values is available here.

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ANC50-50W-50R0G Chip Resistor

Scattering parameters of Inmet ANC series (50 x 50 mils) chip resistor. All testing performed on a 20 mil thick Rogers RO4003 microstrip board, with the resistor facing up.

Resistor Value: 50 ohms

  • Model and S-Parameter data on additional resistor values is available here.

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ANC50-100W-50R0G Chip Resistor

Scattering parameters of Inmet ANC series (50 x 50 mils) chip resistor. All testing performed on a 20 mil thick Rogers RO4003 microstrip board, with the resistor facing up.

Resistor Value: 50 ohms

  • Model and S-Parameter data on additional dB values is available here.

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NPC20-40S Chip Resistors

Scattering parameters of Inmet NPC series (20 x 40 mils) chip resistors. All testing performed on a 20 mil thick Rogers RO4003 microstrip board, with the resistor facing down.

Resistor Value: 50 ohms

  • Model and S-Parameter data on additional resistor values is available here.

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NPC50-50W Chip Resistors

Scattering parameters of Inmet NPC series (50 x 50 mils) chip resistors. All testing performed by Modelithics, Inc. on a 20 mil thick Rogers R04003 microstrip board, with the resistor facing up.

Resistor Value: 50 ohms

  • Model and S-Parameter data on additional resistor values is available here.

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NPC50-100W Chip Resistors

Scattering parameters of Inmet NPC series (50 x 100 mils) chip resistors. All testing performed by Modelithics, Inc. on a 20 mil thick Rogers R04003 microstrip board, with the resistor facing up.

Resistor Value: 50 ohms

  • Model and S-Parameter data on additional resistor values is available here.

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PPC100-200AW Chip Resistors

Scattering parameters of Inmet PPC series (100 x 200 mils) chip resistors. All testing performed on a 20 mil thick Rogers RO4003 microstrip board, with the resistor facing up.

Resistor Value: 50 ohms

  • Model and S-Parameter data on additional resistor values is available here.

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