RN242CST2R

RF Diode Overview

The RN242CST2R is a PIN diode manufactured by ROHM Semiconductor, designed for high-frequency switching applications. It features a reverse voltage of 30 V and a maximum forward current of 100 mA. The device exhibits a low junction capacitance of 0.35 pF at 1 V reverse bias and a typical RF resistance of 3 Ohms at 100 MHz with 3 mA forward current. Operating within a temperature range of -55°C to +150°C, it utilizes an SOD-923 (VMN2) surface-mount package.

RF Diode Feature Summary

• Ultra-small mold type construction suitable for compact designs
• Low high-frequency resistance and low capacitance characteristics
• Silicon epitaxial planer structure for reliable performance

RF Diode Applications

• High frequency switching circuits
• RF signal routing and attenuation
• Microwave phase shifters

RF Diode Procurement Notes

Verify the specific ordering suffix 'T2R' against the manufacturer's official documentation to confirm tape and reel specifications. Ensure compatibility with existing PCB footprints for the SOD-923 package. Confirm supply status as this component may be subject to lifecycle changes or obsolescence notices from ROHM Semiconductor.

RF Diode Selection Notes

Select this component when a small form factor is required alongside standard 30 V reverse voltage ratings. Compare the 0.35 pF capacitance and 3 Ohm RF resistance against circuit requirements for insertion loss and isolation. Consider the SOD-923 package dimensions if space constraints are critical compared to larger packages like SOD-523.

RF Diode Part Context

The RN242CST2R belongs to ROHM's RN series of PIN diodes, which are engineered for RF and microwave applications. This specific part number denotes the SOD-923 package variant, offering a smaller footprint than the SOD-523 version while maintaining similar electrical performance parameters for high-frequency switching tasks.

RF Diode Replacement Considerations

The RN242SMT2R is listed as a recommended replacement with similar specifications but uses the SOD-523 package. Verify that the larger SOD-523 footprint fits the design constraints before substitution.