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Thread: SMD to Through hole

  1. #1
    AtomSoft Excellent AtomSoft Excellent AtomSoft Excellent AtomSoft Excellent AtomSoft Excellent AtomSoft Excellent AtomSoft Excellent AtomSoft Excellent
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    SMD to Through hole

    Im looking for some parts. The originals are SMD parts and im looking for the equivalent through hole devices.

    NDS352AP :
    * MOSFET
    * Transistor Type:MOSFET
    * Transistor Polarity:P Channel
    * Drain Source Voltage, Vds:-30V
    * Continuous Drain Current, Id:2A
    * On Resistance, Rds(on):80mohm
    * Rds(on) Test Voltage, Vgs:-10V
    * Drain-Source Breakdown Voltage:-30V RoHS Compliant: Yes

    MICROCHIP TC77:
    * Temperature Sensor IC
    * Termination:SMD
    * Package/Case:5-SOT-23
    * No. of Pins:5
    * Leaded Process Compatible:No
    * Operating Temp. Min:-55°C
    * Peak Reflow Compatible (260 C):No
    * Reel Quantity:3000
    * Supply Voltage:3.3V RoHS Compliant: Yes

    So far those 2 are SMD and need the same but in through hole. Any help? Thanks.
    Last edited by AtomSoft; 11th November 2008 at 05:41 AM. Reason: bad title


  2. #2
    picasm Good picasm Good
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    They don't do a TC77 through hole option but Microchip direct have a "demo board" option which allows easy connection to it:

    TC77 Thermal Sensor PICtail Demo Board

    A TC74 is available in a 5 lead TO220 package but it uses the 12C protocol instead of SPI

  3. #3
    AtomSoft Excellent AtomSoft Excellent AtomSoft Excellent AtomSoft Excellent AtomSoft Excellent AtomSoft Excellent AtomSoft Excellent AtomSoft Excellent
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    Wow i rather use the SMD part that a 10:1 price. I can get the TC77 for $1. I rather buy the SMD (at least 5 then lol)

    I found they have it in 8Pin SOIC also. Ill get that since its bigger.
    Last edited by AtomSoft; 11th November 2008 at 02:48 PM.

  4. #4
    3v0
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    There are many parts that are either only avialable in SMD or are much cheaper in SMD.

    For a long time I resisted using SMD parts. In some ways it is better. There are so few holes in most projects you can drill them by hand with a pin vice. As a hobby person I feel free to mix through hole and SMD parts.

    I would rather install a through hole resistor then solder on a SMD resistor and a jumper. I am thinking 1/8 watt.

    I have a good supply of TO-92 regulators so I use them. That sort of thing.

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    The issue is that since im not making custom boards as of yet its hard to do some SMD devices. I have in the past split the wholes on a pref board and used it for a smd part and worked fine but its a hassle. I might order some of those nice boards from dip micro but until i can get my laser printer im stuck.

    But i would love to solder some smd parts if the board is ready. I would also mix and match with through hole as you say because i would save on drilling.

    Ill go smd here i guess. Thanks!

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