DC-DC Converter Modules: HNDS/HNAS Series

Shindengen Electric Manufacturing Co., Ltd. (headquartered in Otemachi, Chiyoda-ku, Tokyo, Japan)
imagined“a design to save energy easily just by putting it on top”when we developed the two types of non-insulating step-down DC-DC converter modules called the HNDS series and HNAS series.March 2009 marks the start of mass production, with over 1 million shipments expected in the first year, mainly to the industrial device market.

  • Designed to save energy easily just by putting on top!
  • HNDS series supports 12 V/24 V-type input
  • HNAS series supports 3.3 V/5 V-type input
  • Supports high-current (3 A) output
  • Incorporates comprehensive protection functions
  • Full range of mounting variations


 In recent years, as momentum for protection of the global environment rises, energy-saving demands have intensified for devices of all kinds, not just products for consumers. Likewise, the market for industrial devices requires cuts in power consumption.
 To improve response speed and lower power consumption in memory and system LSIs used in industrial device control, etc., leaps are being made in lowering voltage and raising current. Power specifications, accordingly, grow increasingly diverse and complex. However, as faster product development is demanded of power design, it is becoming impossible to devote adequate time to consideration. Therefore, a number of cases can be seen in which the dropper method is used despite its low conversion efficiency because it is easy to design with, one factor slowing the movement towards energy conservation.
 We, however, have developed the concept of “a design to save energy easily just by putting it on top”into the non-insulating step-down DC-DC converter module HNDS series and HNAS series. It eliminates design headaches while helping to save energy with high-efficiency power. We have 3 mounting variations, considerate of the details of power designers' needs.

 We shall continue to provide high-efficiency power responsive to power designers' needs and to contribute to the protection of the global environment.



  • Designed to save energy easily just by putting on top!
    Input/output condensers and chokes come installed; no need for external components; no need for radiator fins
  • Supports a wide range of input voltages
    12 V/24 V-type input:  HNDS series:  9 V to 28 V
    3.3 V/5 V-type input:  HNAS series:  3.0 V to 5.5 V
  • Supports large currents (3 A):  HNDS030A/HNAS030A
  • Operating surrounding temperature:  -40°C~+85°C (temperature derating available)
  • Remote control function installed
  • Comprehensive protection functions installed (overcurrent protection function, overheating protection function)
  • Mounting variations:  SIP (L)/DIP (D)/SMD (S)

  • HNDS010A-L

    (SIP-type product form example:  HNDS010A-L)

    (SMD-type product form example:  HNAS030A-S)
    HNDS030A-D(DIP-type product form example: HNDS030A-D)  


3.Product Chart


4.Main Applications

  • Industrial devices
  • Control devices
  • Measurement devices
  • Office devices
  • Information/communication
        devices, etc.

  • 5.Production Plants

  • Shindengen Electric Manufacturing Co., Ltd. and its subcontracting factories

  • 6.Production

    • Mass production from March 2009
    • 1 million expected in FY 2009

    • 7.Prices (Reference Standard Prices)

      • HNDS010A-L/D:  700 yen 
      • HNDS030A-L/D:  850 yen 
      • HNAS030A-L:  700 yen 
      • HNAS030A-S:  750 yen 
      • * The letter after the - indicates the mounting method.

        8.Minimum Order Quantity

        Minimum order number:  50; 600/box
        This product comes in trays; so shipments will be by the tray.


         Shindengen Electric Manufacturing Co., Ltd. 
         Power  Systems Div.  Group Power Module Div.  Sales Dept. 2Group