Transistor Replacement 2 – Pack ZTX450-ND

Transistor replacement 2 - pack ZTX553-ND MSx30 Q22, Q23

5 pack of PN2222AD26ZCT-ND NPN transistors. Replacement for V2.2 Q3, Q5, Q9-Q11

9 pack of 2N3904FS-ND transistors MSx30 Q6, 7, 8, 10, 1, 14, 15, 19, 20 These transistors are used as general purpose switching transistors at many points in the V3.0 board.

This is the Bosch BIP373 coil driver triple darlington on its own. If replacing a VB921, you must use a mica insulator. For a BIP373 packaged with a mica insulator, or more information on BIP373s, please see our BIP373 mod kit.

Package of 2 TIP42COS-ND transistors. These go in the Q3 and Q11 slots on the V3.0 board and are part of the active flyback circuit.

PNP 200 mA transistor. As used in the MSStim V2.2 and later.