RN142SMT2R

RF Diode Overview

The RN142SMT2R is a single PIN diode manufactured by ROHM Semiconductor, designed for high-frequency switching applications. It features a reverse voltage (VR) of 60 V and a forward current (IF) rating of 100 mA. The device operates with a junction temperature (Tj) up to 150 °C and exhibits a low capacitance (Ct) of 0.45 pF at 1 V reverse bias. Its RF resistance (rF) is specified at 3 Ω when driven by a 3 mA forward current at 100 MHz. The component is housed in an SOD-523 package (JEITA SC-79), measuring 1.6 x 0.8 mm with a thickness of 0.7 mm, suitable for surface mount mounting.

RF Diode Feature Summary

• Small mold type construction for compact circuit integration
• Low RF resistance characteristics optimized for high-frequency performance
• Low capacitance design supporting efficient signal switching

RF Diode Applications

• High-frequency switching circuits
• RF signal routing and attenuation
• Microwave frequency control systems

RF Diode Procurement Notes

Verify the specific ordering suffix to ensure correct packaging configuration, as the base part number may correspond to different reel quantities or tape types. Confirm RoHS compliance status through the official datasheet before procurement. Check supply status indicators such as 'Recommended' or 'Last Time Buy' to assess long-term availability and production lifecycle constraints for your project timeline.

RF Diode Selection Notes

Select this component when a 60 V reverse voltage rating and 100 mA forward current capability are required within a small SOD-523 footprint. Ensure the application demands low capacitance around 0.45 pF and low RF resistance near 3 Ω at 100 MHz. Verify that the operating environment supports a maximum junction temperature of 150 °C and that surface mount assembly processes align with the specified package dimensions.

RF Diode Part Context

The RN142SMT2R belongs to ROHM's RN series of PIN diodes, which are engineered for high-speed switching operations. This specific variant utilizes the EMD2 package code, corresponding to the SOD-523 form factor. It serves as a standard-grade discrete component distinct from automotive-qualified variants, focusing on general-purpose high-frequency electronic applications where size and speed are critical parameters.

RF Diode Replacement Considerations

The RN142ZS is listed as a similar level replacement with the same pinout but differs in package (GMD2 vs EMD2) and electrical ratings (30 V VR). Direct substitution requires verifying mechanical fit and ensuring the lower reverse voltage rating meets the circuit requirements.