Selection guides, application notes and design checks for rectifiers, Schottky diodes, TVS protection, MOSFETs, SiC and IGBTs — written for engineers and sourcing teams.
Electric power steering runs a motor whose load swings from a light cruise current to a full stall current in seconds, and the freewheeling diode must survive both. This guide covers the load profile, the diode’s role, the AMBRB3045CT fit, and the automotive reliability validation. EPS Load Profile: Peak vs Continuous Torque The steering motor … Read more
An ECU power tree runs from the battery’s 12 V through protection, buck converters, and down to 3.3 V logic rails, and every stage has a rectifier or protection diode with a different job. This guide walks the tree, sizes a 10 A rail, and covers the under-hood thermal and EMC reality. ECU Power Rails: … Read more
An automotive lamp module seals its electronics in a small, hot housing, and the rectifier—often the smallest component—carries the efficiency and thermal story. This guide covers the driver architectures, the 60/100 V classes, the compact packages, the AWSS family, and the sealed-housing validation. LED Driver Architectures and Where the Rectifier Sits Automotive LED drivers come … Read more
A PV bypass diode is selected by five numbers—forward current, forward drop, leakage at temperature, surge capability, and thermal resistance—and the selection only works when those numbers are checked inside the real junction-box heat-flow route. The part that looks best at 25 °C often fails the hot, shaded-hour test. This guide walks through the selection … Read more
In a PV inverter, rectifiers appear in three places—the boost diode of the MPPT stage, freewheeling diodes around switches, and protection paths—and each is chosen by voltage, frequency, and the outdoor thermal environment. This guide maps the roles, compares SiC and fast recovery in the boost, and sizes a 10 kW example. Where Rectifiers Appear … Read more
Server power supplies run at high power density, and the output rectifier is where the thermal design is won: 40 A of load current turns every 0.1 V of forward drop into 4 W of heat inside a rack full of sealed boxes. This guide walks the thermal-first method, the package decision, the loss math, … Read more
In an AC-DC adapter, the output rectifier’s forward drop is the last big lever left for efficiency, and every 0.1 V at the output current is a watt of heat in a sealed case. This guide follows the loss through a 65 W USB-PD output stage, compares the Schottky with synchronous rectification, and lands on … Read more
Inside one switch-mode power supply, rectifiers do three different jobs with three different constraints: the input bridge survives surge and voltage, the PFC stage manages frequency and recovery, and the output stage wins on forward drop. Selecting for the role—not for a generic “rectifier”—is the whole method. This guide walks the three roles and sizes … Read more
Three voltage columns on a rectifier datasheet answer three different questions: VRRM is the repetitive peak reverse voltage the part blocks, VRMS is the RMS AC level it can handle, and VDC is its DC blocking capability. The margin rule that ties them together—20–30% over the worst real peak—is the habit that prevents most voltage-related … Read more
Thermal design for a rectifier is one arithmetic chain: heat generated at the junction flows through the junction-to-case resistance, the mounting interface, and the heatsink-to-ambient path, and the sum of those temperature drops sets the junction temperature. If TJ stays below the datasheet maximum with margin, the part lives; if it does not, no headline … Read more
IFSM—peak forward surge current—is a single-pulse rating: the part survives one large current event at a defined pulse width and starting temperature, and every repeated event ages it. This guide explains what the number actually means, how it is tested, and how to check it against the real events your circuit produces. The One-Number Trap: … Read more
Forward voltage (VF) is not a fixed datasheet number; it is a function of current, junction temperature, and device construction. Design with the maximum VF at the operating temperature, and the loss math—conduction loss is simply IF × VF—stops producing surprises. This guide covers the physics behind the number, how it moves with temperature, and … Read more
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