Voltage regulator for security cam?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • ryan74
    Badcaps Veteran
    • Oct 2012
    • 471
    • usa

    #1

    Voltage regulator for security cam?

    I have a waterproof cctv cam(yellow=video, white=audio, black=power)
    I have no clue who made it but I did find a bad voltage regulator
    part# CJ78L05(datasheet below)
    The replacement comes from china for a total of $6
    http://www.ebay.com/itm/CJ78L05-Manu...item5651a3edc4

    I dont want to wait 3-4 weeks so I am looking at another replacement from digikey. I think I have narrowed it down but could use someone help.

    I need to know if I selected the right specs? I think I just need to verify physical size so it fits.
    http://www.digikey.com/scripts/dksea...7=5865&stock=1
    Attached Files
    Last edited by ryan74; 03-01-2013, 03:11 PM.
  • smason
    Badcaps Legend
    • Feb 2010
    • 1652
    • Canada

    #2
    Re: Voltage regulator for security cam?

    That's just a "jellybean" 78L05 so any of the SOT-89 package ones should work fine.
    36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....

    Comment

    • ryan74
      Badcaps Veteran
      • Oct 2012
      • 471
      • usa

      #3
      Re: Voltage regulator for security cam?

      Originally posted by smason
      That's just a "jellybean" 78L05 so any of the SOT-89 package ones should work fine.
      Digikey recommended http://www.digikey.com/product-detai...18-1-ND/382184

      I went through my link above and pulled out these SOT-89
      http://www.digikey.com/product-detai...MSCT-ND/804706
      http://www.digikey.com/product-detai...XCT-ND/2053106
      http://www.digikey.com/product-detai...FCT-ND/3042635
      http://www.digikey.com/product-detai...83-1-ND/586183

      I am only a hobbiest but arent my choices(with Smason's help) better than what they recommended?
      Last edited by ryan74; 03-01-2013, 03:20 PM.

      Comment

      • tom66
        EVs Rule
        • Apr 2011
        • 32560
        • UK

        #4
        Re: Voltage regulator for security cam?

        All are suitable -- may as well pick the cheapest...
        Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
        For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        Related Topics

        Collapse

        • Document Archive
          ISL95831HRTZ ISL95831HRTZ-T ISL95831IRTZ ISL95831IRTZ-T Voltage Regulator Datasheet
          by Document Archive
          3+1 Voltage Regulator for IMVP-7/VR12 CPUs

          Compliant with IMVP-7/VR12, the ISL95831 provides a complete solution for microprocessor and graphic processor
          core power supply. It provides two Voltage Regulators (VRs) with three integrated gate drivers. The first VR can be
          configured as 3-, 2- or 1-phase VR while the second output is 1- phase VR, providing maximum flexibility. The two VRs share the
          serial control bus to communicate with the CPU and achieve lower cost and smaller board area compared with the two chip approach.
          Based on Intersil's Robust Ripple Regulator...
          11-05-2024, 03:24 PM
        • playit
          diy - voltage injection possiblity with voltage and ampere regulator - possiblity ?
          by playit
          hello ,for diy voltage injector for short killer/finder -- is it possible to use something like this - LM317 DC Linear Regulator, DC-DC 4.5~40V Turn 1.2~37V, Step Down Power Module, Adjustable

          and ampere controller along (to make it zero amps ) with some addons(transistors diodes etc.) for it -- and use some 5v adaptor or 3.3v volt rail of my smps power supply as input and finally get 1v and zero amps for injecting voltage to find out short circuit component ? ..
          for source input -- can we use 3.3 -4 volt 18550 battery ?( i have some of those ) and then adding ampere regulator...
          02-26-2025, 05:39 AM
        • artvandalai
          Help identifying voltage regulator on this concept 2 pm5 monitor pcb board?
          by artvandalai
          This Concept 2 rower pm5 monitor doesn't shut down. It keeps turning on and stays on after being turned off. I read on another forum by another user that replaced the same component to check the voltage regulator.
          The monitor should pull around 35mA when turned on and in shutdown it should drops to around 0.060mA. Any advice on finding the voltage regulator on this board to check if it needs to be replaced?

          11-05-2024, 07:38 AM
        • Long AMD
          Acer AL1916W - Two seconds to black - Voltage regulator problem?
          by Long AMD
          Hello all. Excellent forum you have here - it has already been a great help to me. I am posting the details of my situation before I go and start buying parts to see what suggestions the great minds here may have on diagnostics or otherwise.

          I have an Acer AL1916W monitor which has recently failed in the following way: the screen comes on at power on, but after a couple seconds the screen goes black. Using a flashlight, I can easily verify the LCD is fine but there is simply no backlight.

          The power supply board is of the type ILPI-025 Rev C (Date of manufacture was...
          09-13-2020, 05:59 PM
        • shakib200
          Ram regulator misbehaving DDR3 VTT voltage Tps 51216
          by shakib200
          The ram regulator produces VTT voltage of 0.65V and the display comes. When we restart the laptop the VTT voltage becomes 0.75 and no display.[Used same ddr3l ram].
          Also, it becomes 1.35 V on the ram coil and all are okay but after restarting Voltage becomes 1.5V with no display.
          03-16-2024, 11:33 AM
        • Loading...
        • No more items.
        Working...