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Thin Film Attenuators
Thin Film Attenuators
Product Features
- Reduces amplitude or power of a signal by a known value. This is achieved with very little distortion of the signal, maintaining accuracy up to 40 GHz.
- Attenuators are available with or without center Taps.
- Single wraps of the ground pad to a full gold backside available.
- Additional Attenuator configurations, including balanced attenuators, are available as custom parts.
- Can be used in Non-Magnetic Applications.
Attenuator Top Contact
Attenuator, Single Pad Wrap
Attenuator, 3-Sided Wrap
Thin Film Attenuator
Part Numbering
Example PPI Part Number: PATS35-50x50x10A3R00FQGW
Resistive Materials
Attenuator Type
| Code | Material | Passivation | Sheet Resistivity (Ω/Sq) |
Abs. Tolerance | Ratio Tolerance |
| T | Tantalum Nitride (TaN) |
Self Passivating Ta₂O₅ | 5 to 270 | From ±0.01% | From ±0.01% |
| Code | Description |
| S | T-Pattern |
Properties: Power Handling and Attenuation by Size
| Dimensions (mils) |
Power (W) |
Value | |||
| L x W x T | Al₂O₃ (35) | AlN (28) | BeO (25) | Min | Max |
| 50 x 50 x 10 | 250 mW | 1 W | 2 W | 0.5 db | 24.5 db |
| 80 x 60 x 15 | 250 mW | 1 W | 2 W | 0.5 db | 24.5 db |
| 150 x 120 x 25 | 2 W | 8 W | 16 W | 0.5 db | 24.5 db |
Bond Pad Metallization
Attenuation Range
| Code | Metallization | Description | Attachment Options |
| A | Pd/Au | Top Only | Wirebond, Non-Cond. Epoxy |
| M | Flip Chip (Ti/Pt/Au) |
Single Wrap Full GRD Place |
Cond. Epoxy, Non-Cond. Epoxy, Eutectic Attach Solder |
| R | Pd/Au | Flip Chip | Wirebond, Non-Cond. Epoxy |
| X | TiW/Ni/Au | 3-Sided Wrap | Wirebond, Cond. Epoxy, Non-Cond. Epoxy, Eutectic Attach Solder |
Attenuation is displayed as 4 digits, the third digit is represented as an R as a decimal point. The fourth digit is the number after the decimal point.
Examples:
-
- Code 00R5 = 0.5 dB
- Code 05R0 = 5 dB
- Code 15R0 = 15 dB
Attenuation Tolerance
Temperature Coefficient
Power Handling
| Code | Tolerance |
| F | ±0.1 dB (-0.5 to -6.0 dB) |
| G | ±0.2 dB (-6.5 to -24.5 dB) |
| Code | TCC |
| Q | ±150PPM/°C (Standard) |
| V | ±100PPM/°C |
| Code | Watts |
| G | 250 mW |
| K | 1.0 W |
| L | 2.0 W |
| R | 8.0 W |
| Y | 16.0 W |
Power Ratings assume proper heat sinking is used.
Packaging
General Properties
Testing
| Code | Style |
| W | Waffle Pack (Standard) |
For additional packaging options, please contact PPI.
| Operating Temperature | -55°C to +150°C |
| Storage Temperature | -65°C to +150°C |
| Operating Frequency | DC to 40 GHz |
| Voltage Rating | 100V maximum |
| Power Derating (See Chart below) |
Full power up to 70°C Derated linearly to zero power at 150°C |
| Testing Performed | Specification/Standard |
| Visual Inspection | MIL-PRF-55342 MIL-STD-883 |
| Mechanical Inspection | MIL-PRF-55342 |
| DC Resistance | MIL-PRF-55342 MIL-STD-202 |
| Resistance Temperature Characteristics (TCR) | MIL-PRF-55342 |
| Short Time Overload | MIL-PRF-55342 |
| High Temperature Exposure | MIL-PRF-55342 |
| Thermal Shock | MIL-PRF-55342 MIL-STD-202 |
| Resistance to Bonding Exposure | MIL-PRF-55342 |
| Wire Bonding Integrity | MIL-PRF-55342 |
| Life Test | MIL-PRF-55342 MIL-STD-202 |
Performance Specifications
Higher power ratings, additional sizes, and custom resistors available. Please contact sales@passiveplus.com.
Passive Plus offers a comprehensive range of Thin Film Components, designed to meet the diverse needs of the engineering community. PPI Thin Film Components are Made-to-Order and customized to specific applications. Offering precision, reliability, and customization options that cater to your unique requirements.
PPI Thin Film Components deliver tight tolerances, precision, and reliability for any engineering project. Explore each Thin Film type to determine the perfect fit for your application or contact PPI (sales@passiveplus.com) and our team can work with you to determine the best solution.
Once these specifications are confirmed, PPI will then supply the customer with a Spec Sheet with pricing and delivery options.
Please contact PPI directly at 631-425-0938 or by email at sales@passiveplus.com to start this process.
