Discontinued (May, 2023)

Released 1998
Warranty Period 2-year

This power supply is manufactured by SMD technology. The stress to P.C.B like twisting or bending causes the defect of the unit, so handle the unit with care.

Recommended Model for Replacement

Type Product Name Released Catalog
Instruction Manuals
Documents for replacement
PCB Mount type TUHS5F12 2014
  • Catalog
  • Instruction Manuals
    • * For further information and how to use, please see in Cosel product catalog.

    Features of VAA512

    • P.C. board mount AC-DC converter
    • Built-in inrush current and overcurrent protection circuits
    • Small and compact size

    Ordering Information and Options

    VAA(1)  5(2)  05(3)  

    (1) Series name
    (2) Output wattage
    (3) Output voltage


    Contents Specifications
    Input Voltage AC85 - 132V 1Φ or DC110 - 170V
    Output Wattage 5.4W
    Voltage/Current 12V 0.45A
    Adjustable  Voltage Range -
    Protection Circuit And Others Overcurrent Protection Works over 105% of rating and recovers automatically
    Overvoltage Protection Works over 115% of rating (by zener diode clamping)
    Remote ON/OFF -
    Remote Sensing -
    Others -
    Operating Temperature/Humidity -10 to +70℃, 20 - 90%RH (Non condensing) *
    Safety And Noise Regulations Agency Approvals (At only AC input) UL60950-1, C-UL Complies with DEN-AN (External Fuse is required)
    Conducted Noise Complies with FCC-B, additional capacitors required for meeting VCCI class B
    High Attenuation -
    Others Dimensions (WxHxD) 32x18x65mm [1.26x0.71x2.56 inches]
    Weight 30g max
    Cooling Method Convection
    Warranty Period 2-year
    • * For further information and how to use, please see in Cosel product catalog.

    Documents Download

    Technical Data
    • * For another documents aren't listed, please feel free to contact to a Cosel representative.
    Table1 Product Status Information
    No. Product Status Definition
    1 New Product New Product. Recommended for new design.
    2 Recommended Recommended for new design.
    3 blank Product in mass production
    4 NRND Not recommended for new design.
    5 To be discontinued PDN (Product Discontinuation Notice) is issued and LTB (Last Time Buy) is under consideration.
    6 Discontinued LTB order is no longer available.