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1,000 pcs
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1000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The KA78T12TU from ON Semiconductor is a monolithic integrated circuit designed as a 3A positive voltage regulator. It provides a fixed 12V output voltage and requires no external components for basic operation. This regulator family features internal circuitry for output transistor safe operating area compensation, internal short circuit current limiting, and internal thermal overload protection.
With an output current capability exceeding 3.0A, the KA78T12TU is suitable for a variety of power supply applications. It operates with an input voltage range up to 35V and features a low dropout voltage of 2.5V at 3A. The device is designed for operation within a junction temperature range of 0°C to 125°C and is available in a TO-220-3 package for through-hole mounting.
Key electrical characteristics include a typical quiescent current of 3.5mA, a ripple rejection of 75dB at 120Hz, and an output resistance of 2 mΩ at 1.0kHz. The regulator's thermal resistance from junction to case is 2.5°C/W, facilitating efficient heat dissipation when properly mounted.
This series offers output voltages of 5V, 12V, and 15V, with the KA78T12TU specifically providing a 12V output. The output voltage is offered in a 4% tolerance. The device is RoHS3 compliant and has an MSL rating of 1.
| Qty | Low | High |
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| 1+ | $0.30 | $0.30 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The KA78T12TU provides a fixed output voltage of 12V.
The KA78T12TU can deliver a maximum output current of 3A.
The KA78T12TU is supplied in a TO-220-3 package.
The operating temperature range for the KA78T12TU is 0°C to 125°C.
Yes, the KA78T12TU includes over-temperature and short circuit protection.
The dropout voltage for the KA78T12TU is a maximum of 2.5V at 3A.