STPS1150

Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Active
Diode Type:	Schottky
Voltage - DC Reverse (Vr) (Max):	150V
Current - Average Rectified (Io):	1A
Voltage - Forward (Vf) (Max) @ If:	820mV @ 1A
Speed:	Fast Recovery = 200mA (Io)
Current - Reverse Leakage @ Vr:	1µA @ 150V
Capacitance @ Vr, F:	--
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-41
Operating Temperature - Junction:	175°C (Max)
Base Part Number:	STPS1150

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STPS1150 Application Field and Working Principle

The STPS1150 is a single-phase rectifier diode manufactured by STMicroelectronics. This diode is a perfect choice for applications including reduction of harmonics, harmonic cancellations, and smoothing of pulses. Due to its low VF and low-inductance construction, it is also suitable for current deriving restrictions in high-frequency application like small and large AC/DC converters and motor-controls. The STPS1150 is a bridge type rectifier diode with a 200V blocking voltage and 11A max forward current. It is also suitable for high speed diodes shockley-type symmetrical applications since it provides an optimized withstanding high-switching stress. Further feature highlights of the diode include an ultra-low forward voltage drop which is 1.25V at 15A, fast switching frequencies up to 500 kHz, and a high surge current capability of 30A.

Mechanical Properties

The STPS1150 bridge rectifier diode is available in a variety of packages, including TO-274AA, TO-264AB, SMB, and DO-201AD. All packages feature high thermal protection and resistance to all rated current due to its low-inductance construction. The SMB package of STPS1150, in particular, decreases the inductance of diode slowly with VF and it complies with the RoHS Directive 2011/65/EU.

Elementary Working Principle

Every diode acts as a one-way electronic valve. All diodes are based on the basic principle of allowing current to flow in only one direction. The STPS1150 is a bridge-style rectifier, which consists of four junction diodes connected in a series combination known as a Wheatstone bridge. The four diodes form a full-wave rectifier, allowing current to flow through the diode in both directions, but only allowing a flow from the anode to the cathode. When a positive voltage is applied to the anode and a negative one to the cathode, the diode conducts and allows current to flow. The current is then conducted through the diode towards the positive voltage. When a negative voltage is applied to the anode and a positive one to the cathode, the diode still conducts, but instead of flowing towards the positive voltage, the current flows through the diode away from the negative voltage.

Applications

The STPS1150 bridge rectifier diode is mainly used in applications requiring high-frequency-switchable power, such as power supplies, battery chargers, automation and control systems. The device features both extremely low forward voltage drops and fast switching frequency, which makes it an excellent choice for applications where power consumption needs to be minimized. Additionally, the device can also be used in various applications such as power factor correcting, phase-controlled rectification, synchronization of AC variable-speed drives, and thermal protection relays. The high surge current capability of the diode makes it suitable for AC/DC converters, resistive bridge load, and for high-current applications such as motor-controls.

Conclusion

The STPS1150 bridge rectifier diode is a reliable device providing ultra-low forward voltage drop and high surge current capabilities. It is suitable for applications such as reduction of harmonics, harmonic cancellations, and smoothing of pulses, as well as power supplies, battery chargers, automation and control systems, power factor correcting, phase-controlled rectification, synchronization of AC variable-speed drives, and thermal protection relays. The diode is available in a variety of packages and is capable of providing superior performance under extreme conditions.

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