Categorized | Industry News, ROHM


Posted on 28 May 2019

ROHM Semiconductor Introduces 3rd Generation Fast Recovery Diodes








Optimized performance and high reliability for a wide range of applications

ROHM Semiconductor showcased a broad line-up of highly reliable 3rd Gen Fast Recovery Diodes at PCIM 2014 in Nuremberg. The different families address a wide range of applications and offer multiple design options. Two new series have been added to the standard balance and soft recovery types, demonstrating optimized performance: The low Vf RFNL series features ultra low Vf & soft recovery, suitable for discontinous current mode applications of 200W~300W like TV, PC and white goods. The new RFV series has been developed with a high speed switching & hard recovery behaviour, supporting high wattage, continous mode applications such as UPS power, power conditioner and industrial modules.

Through their high current overload capacity and ultra low forward voltage characteristics the new FRDs demonstrate significant efficiency increase of switching power supply as well as switching loss reduction and in consequence, contribute to greater energy savings (about 35% compared to conventional solutions). Based on new proprietary processes, the RFV series offers ultra-fast trr and a reduced reverse recovery time of 40%. Both families feature 600 Vr reverse voltage and complement ROHM’s RFN low Vf balanced type series and RFUH high-speed trr soft recovery type series.

Key Features

RFNL Series

  • Vr(V)                   600
  • Io (A)                   5 – 10
  • Vf (V) max            1.3
  • If (A)                    5 – 10
  • Trr (ns) max.        60 – 65
  • Packages:             TO-252 (D-PAK), TO-220NFM (2pin)

RFV Series

  • Vr(V)                   600
  • Io (A)                   5 – 20
  • Vf (V) max            2.8 – 3.0
  • If (A)                    5 – 20
  • Trr (ns) max.        20 – 30
  • Packages:             TO-220NFM (2pin)


  • RFNL series: Power supplies for TV, PC and white goods
  • RFV series: UPS power, power conditioners, industrial modules


Both line-ups are available.

About ROHM Semiconductor

ROHM Semiconductor is a global company of 331,087 million yen (3,24 billion $) revenue with 19.985 employees in the last fiscal year ending March 2014. ROHM Semiconductor develops and manufactures a very large product range from the Ultra Low Power Microcontroller, Power Management, Standard ICs , SiC Diodes, Mosfets and Modules , Power Transistors and Diodes, LEDs to passives components such as Resistors, Tantalum Capacitors and LED display units, thermal Printheads in state-of-the-art manufacturing plants in Japan, Korea, Malaysia, Thailand, the Philippines, China and Europe.

Lapis Semiconductor (former OKI Semiconductor), SiCrystal AG and Kionix are  companies of ROHM Group.

ROHM Semiconductor Europe has its head office near Dusseldorf serving the EMEA region (Europe, Middle East and Africa). For further information please contact


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