BETAPIN 1 · Supply
EmitterE
Function
Emitter terminal of the bipolar transistor.
How to connect
Connect to +5 V in the high-side example.
Electrical note
TO-92 pin 1 becomes SOT-23 pin 2.
High-voltage PNP transistor
MPSA92 Pinout
Explore MPSA92 pins, signal names, electrical functions and connection guidance for each package.
Package view
3Physical pins
MPSA92BKTO-92
Manufacturer-referencedDiotec Semiconductor
Pin diagram
Select a pin to explore its connection
Highlight
MPSA92BKTO-92Front view · flat face · E1, B2, C3
MMBTA92SOT-23Top view · rotated 90° · B1 upper left, E2 lower left, C3 right
Click a lead or use the arrow keys. Front view · flat face · E1, B2, C3
PIN 2 · Base / control
BaseB
Function
Base current controls the collector current within the circuit operating region.
How to connect
Pull down through 4.7 kΩ to turn on; 100 kΩ returns base to emitter.
Electrical note
TO-92 pin 2 becomes SOT-23 pin 1.
PIN 3 · Collector / load
CollectorC
Function
Load-current terminal of the transistor.
How to connect
Feeds the resistor and LED to ground.
Electrical note
Collector remains physical pin 3 in both selected packages.