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MEXICOWANDERER's avatar
Oct 29, 2018

Nifty MOSFET Complete Rectifier 10 amp



Small module designed as a "Ideal Diode" with a very low Vf (Forward Drop). Features 2 D403 very low resistance P-Channel MOS transistors with associated components.
Used to prevent reverse current in Solar Systems, Chargers, Parallel Battery systems.
Input: 4-28VDC
Current: 10A Rated 15A (max.) Surge: 18A
Additional Heatsinking recommended at >10A
Operating Current: .7mA @ 12VDC
Operating Temperature: - 40 ~ + 85 C
Connection: Solder Terminals
Typical Forward Drop:
Load 2A: voltage drop 0.0086 V
Load 5A: voltage drop 0.022 V
Load 8A: voltage drop 0.036 V
Load 10A: voltage drop 0.042 V
Load 12A: voltage drop 0.052 V
Load 15A: voltage drop 0.075 V
L: 22mm W: 20mm T: 8mm WT: .01

Stock No: 35486 DI

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$4.95


http://www.mpja.com/10-29-18.asp?r=386312&s=5
  • I have built high amperage versions of this rectifier using opticouplers and when all the components are added up, including the heat sink and a pair of Transient Voltage Rectifiers, resistors etc., it's not exactly cheap. What is high amperage? 50+
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    theoldwizard1 wrote:
    Anything less than 0.1V forward voltage drop IS amazing !


    You beat me to it.. AGREED!!!
  • there is another version of that I found that was a 2 input 1 out which may work for preventing back-feeding for the lights on a Toad.
  • Ski Pro 3 wrote:
    Is reverse current ever an issue? I've installed a lot of 12 volt DC solar battery systems for work and never did any of the engineers configure reverse current protection. Some of these systems control gates and valves on dams in remote backcountry locations where AC power is not available. Radio signals control the operations remotely.
    Maybe someone could explain why reverse current protection is needed.


    The blocking diode is only useful in small panel direct to battery configurations. Like a 5w panel charging a LiIon for a garden light.
  • The chip has integral spike protection. And an opticoupler gate

    Reverse BLOCKAGE is represented by PIV peak inverse voltage value

    You will know MOSFET has arrived when alternators are rectified with MOSFETS.
  • Is reverse current ever an issue? I've installed a lot of 12 volt DC solar battery systems for work and never did any of the engineers configure reverse current protection. Some of these systems control gates and valves on dams in remote backcountry locations where AC power is not available. Radio signals control the operations remotely.
    Maybe someone could explain why reverse current protection is needed.
  • Old trick of using a mosfet as an "ideal diode", the forward voltage of newer parts is truely amazing.

    They're not as durable as a chunky silicon diode, transients and esd can wreak havoc on the delicate gate structure.