CLA4603-000

RF Diode Overview

The CLA4603-000 is a silicon PIN limiter diode chip designed for high-power and mid-range applications within the Skyworks CLA series. It features a planar construction with an intrinsic region base width of 1.5 μm. The device supports a breakdown voltage range of 20 V to 45 V and exhibits a typical junction capacitance of 0.20 pF at 0 V reverse bias. Electrical performance includes a series resistance of 2.0 Ω measured at 10 mA, a minority carrier lifetime of 5 ns, and a thermal resistance (θjc) of 135 °C/W. The component utilizes a passivated flat-chip configuration suitable for multi-stage limiter circuits.

RF Diode Feature Summary

• Planar design optimized for high-power and mid-range limiting applications
• Passivated flat-chip configuration for robust performance
• Tightly controlled I-layer base width for consistent limiting action

RF Diode Applications

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

RF Diode Procurement Notes

Verify the specific datasheet revision and compliance documentation directly with Skyworks Solutions Inc. before procurement. Confirm that the bondable chip form factor aligns with the intended assembly process, as handling requires specialized methods such as conductive epoxy mounting and gold wire bonding. Ensure electrostatic discharge precautions are strictly followed during storage and installation.

RF Diode Selection Notes

Select the CLA4603-000 when a planar structure is required for high-power or mid-range limiter stages. Compare its 1.5 μm base width against mesa designs like the CLA4601-000 if lower capacitance or faster response is prioritized over peak power handling. Verify that the 20 V to 45 V breakdown voltage range meets the circuit's reverse voltage requirements.

RF Diode Part Context

The CLA4603-000 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 comprises eleven distinct chip designs differentiated by intrinsic region widths and capacitances to accommodate various multi-stage limiter configurations.

RF Diode Replacement Considerations

The CLA4606-000 serves as a comparable alternative within the same series, offering similar planar construction but with a wider 2.5 μm base width and higher breakdown voltage range of 45 V to 75 V.