PinOuts
Pinout Diagrams and specs for various components
2N3906 PNP Transistors
Top View
    _____
/     \\
_______
    | | |
    | | |
    E B C
Manufactured by Fairchild Semiconductor. 2 cents from Arrow Electronics, 7 cents from Jameco, 9 cents from Jameco, 39 cents from [DigiKey](http://www.digikey.com/scripts/US/DKSUS.dll?KeywordSearch?Keywords=2N3906BU%20fairchild)
TIP120 NPN Darlington Transistor
Top View
    -------
|   O   |
    -------
|       |
|_______|
  | | |
  | | |
  B C E
- VBE(on) = 2.5V max
 - DC current gain hFE = 1000 (min).
 - Ib = Ic / hFE
 - Rb = ( Vin - Vbe ) / Ib
 
IFR510 N-Channel Power MOSFET
Top View
    -------                 o D
|   O   |                |
    -------             | |--
|       |            |
|_______|       G o--| |<-|
  | | |              |    |
  | | |              | |--|
  G D S                   |
                          o S
[RatShack](RatShack.html) # 276-2072A
[http://support.radioshack.com/support_supplies/doc31/31806.htm](http://support.radioshack.com/support_supplies/doc31/31806.htm)
local copy of specs:
N-Channel Field Effect Transistor
(276-2072)                  Specifications            Faxback Doc. # 31806
Absolute Maximum Ratings
Drain Source Voltage.................................................100 V
Drain Gate Voltage...................................................100 V
Continuous Drain Current...............................................4 A
Pulsed Drain Current..................................................16 A
Gate Source Voltage...................................................20 V
Max. Power Dissipation................................................20 W
Electrical Specifications
Gate Threshold Voltage............................................2 to 4 V
On-state Resistance.........................................0.6 Ohm (Max.)
Forward Transductance................................................1 mho
Input Capacitance............................................150 pF (Max.)
Output Capacitance...........................................100 pF (Max.)
Input and Output Capacitance calculated at 1 MHz
Specifications are typical; individual units might vary.  Specifications
are subject to change without notice.
(IR-04/08/96)
Notes:
This MOSFET can't be driven directly from an AVR unless you crank VCC up to
around 6 volts.  The IRL5x0 series are similar but with a logic level gate.
Op Amps
Digital Pots
Stepper Drivers and H-Bridges
- 3955 Full-Bridge PWM Microstepping Motor Driver
 - IR3220S Fully Protected H-Bridge for DC Motor in a 20 Lead SOIC package
 - LMD18200 3A, 55V H-Bridge
 - look at TPIC0108b