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