ROHM Semiconductor RN781VM Low rF Pin Diode

ROHM Semiconductor RN781VM Low High-Frequency Forward Resistance (rF) Pin Diode is a compact, high-performance pin diode specifically designed for RF switching and attenuation applications. With a low (4.0Ω maximum) forward resistance (rF), this ROHM diode minimizes signal loss, ideal for high-frequency circuits where efficient signal transmission and fast switching are essential. Housed in a space-saving SOD-323FL surface-mount package, the RN781VM supports streamlined PCB layouts and automated manufacturing processes.

This diode offers a reverse voltage rating of 100V (maximum) and can handle forward currents up to 50mA, providing robust performance across a wide range of operating conditions. A maximum 4.0Ω forward resistance (at 10mA and 100MHz) and a low 0.4pF junction capacitance (at 30V and 1.0MHz) contribute to excellent isolation and fast response times. With a forward voltage of 1.0V maximum and a reverse leakage current of 10μA, the ROHM RN781VM is well-suited for RF switch circuits, attenuators, mobile communication devices, and wireless systems requiring reliable and efficient signal control.

Features

  • High reliability
  • Small mold type
  • Epitaxial planar structure
  • Single configuration
  • Low high-frequency forward resistance
  • Low capacitance between terminals
  • Surface-mount SOD-323FL (SC-90A) package
  • RoHS compliant

Applications

  • Auto gain control circuits
  • Antenna amplifiers and attenuators

Specifications

  • 2x terminals
  • 100V maximum reverse voltage
  • 50mA maximum forward current
  • 1.0V maximum forward voltage at 10mA
  • 0.4pF maximum capacitance between terminals at 35V, 1.0MHz
  • 4.0Ω maximum high-frequency forward resistance at 10mA, 100MHz
  • 10μA maximum reverse current at 100V
  • +150°C maximum junction temperature
  • 2.5mm x 1.25mm package, 0.9mm thickness

Inner Circuit

Schematic - ROHM Semiconductor RN781VM Low rF Pin Diode
Publicado: 2025-11-04 | Actualizado: 2026-01-22