$3.49
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Transistor replacement 2 – pack ZTX553-ND
MSx30 Q22, Q23
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Set of 2 IRFIZ34G-ND FET transistors. Q1 and Q5 in the V3.0 kits. Q2 and Q7 in the V2.2 kits.
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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.
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Transistor replacement 2 - pack ZTX450-ND MSx30 Q2, Q4
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9 pack of 2N3904FS-ND transistors MSx30 Q6, Q7, Q8, Q10, Q13, Q14, Q15, Q19, Q20 These transistors are used as general purpose switching transistors at many points in the V3.0 board.
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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.
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2 pack of TIP125TU-ND transistors MSx30 Q9 and Q12 These are part of the flyback circuit on the V3.0 and V3.57 boards. The V2.2 flyback board also uses these, and it replaces the TIP125 high side driver on the DIYPNP V1.5 board as well.
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