Up for Sale. New units from open box. Units are tested prior to shipment. Single discrete Switching Power Regulator from Power Trends Inc. (Acquired by Texas Instruments) The Switching Regulator PT78ST212V 3 PIN Through Hole regulator will replace inefficient TO-220 linear regulators. This is a DC in to a DC out, non-Isolated Power Converter. Greater than 87% efficiencies at output currents above 0.5A to 2.0A can easily handle 3A Iout surges. This is the vertical unit with an aluminum heatsink with side pins. The heatsink is isolated from the unit. It is recommended to be tied to circuit ground (for superior EMI performance, do not tie heatsink to elevated voltages, do not use heat sink to complete circuit paths). Greater efficiencies mean your power converter stays cooler than a linear regulator.
Devices accept 14.5 Vdc to 28 Vdc and produce 12.0 Vout and will deliver up to 2A. These do not have over-voltage input protection. They do have over temperature protection and over current protection. Over current is over 6A so Vin fuses and Vout fusing is recommended for sensitive designs. Unit requires a Vin Capacitor and a Vout capacitor to operate correctly. MLCC is recommended on Vin and Electrolytic/Tantalum is recommended on the Vout. See online datasheet (PT78ST200).
Price is per 1 unit. Buy as many as you want. Ships and stocked in Central USA. Best offer is considered/reserved for orders over 10 devices Thanks for looking and enjoy the auction.
High Efficiency > 87%
• Wide Input Range 14.5Vdc to 28Vdc
• Aluminum Heatsink for Applications with Airflow
• Self-Contained Inductor
• Short Circuit Protection
• Over-Temperature Protection
The 78ST212 is a series of wide
input voltage, 3-terminal Integrated
Switching Regulators (ISRs). With a
surge capability of 3A and an output
voltage that is laser trimmed, it is ideal
for inductive load applications such as
disk drive motors.