CLA4608-000

RF Diode Overview

The Skyworks CLA4608-000 is a silicon PIN limiter diode chip designed for high-power and mid-range applications. It features a planar construction with an intrinsic region base width of 7.0 μm. The device supports a breakdown voltage range of 120 V to 180 V, with a typical junction capacitance of 0.60 pF at 0 V bias and 0.50 pF at 6 V bias. Series resistance is specified as 1.2 Ω at 10 mA forward current. Minority carrier lifetime is 100 ns. Thermal resistance averages 106 °C/W under continuous wave conditions. The die has a top contact diameter of 6.50 mils (0.165 mm) and utilizes the 149-815 package outline.

RF Diode Feature Summary

• Planar design optimized for high-power and mid-range limiter applications
• Low spike leakage power for effective receiver protection
• Tight control of I layer base width for consistent performance

RF Diode Applications

• LNA receiver protection
• Commercial radar systems
• Defense radar systems

RF Diode Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via the official Certificate of Conformance. Ensure proper electrostatic discharge handling procedures are followed during storage and assembly due to the bare die nature of the component.

RF Diode Selection Notes

Select this part for multi-stage limiter designs requiring high power handling capabilities. The 7.0 μm base width distinguishes it from lower capacitance mesa devices intended for cleanup stages. Verify that the 1.2 Ω series resistance and 0.60 pF capacitance align with the specific insertion loss and limiting threshold requirements of the target RF circuit.

RF Diode Part Context

The CLA4608-000 belongs to the Skyworks CLA series of silicon limiter diodes, which provides passive receiver protection across frequencies from 100 MHz to over 30 GHz. This series includes eleven individual chip designs varying in intrinsic region base widths and capacitances to accommodate diverse multi-stage limiter configurations.

RF Diode Replacement Considerations

The datasheet does not list specific substitute part numbers. For equivalent performance, consider other planar devices within the same CLA series, such as the CLA4607-000 or CLA4610-000, ensuring their electrical parameters match the application's power and frequency requirements.