1500 W TVS Ratings: Pulse Energy and Protection Coordination
A 1500 W TVS diode is rated in power but chosen in joules: about 1.5 J per pulse, against a load dump worth hundreds. What the class really covers.
James
Low Capacitance ESD Diode: Protecting High-Speed Signal Integrity in Modern Electronics
A low capacitance ESD diode keeps 3.5 pF off a high-speed line. Why 45 pF parts are wrong there, and how capacitance, clamping and IEC levels decide.
USB ESD Protection Diodes: Selection, Pin Mapping and PCB Layout
A USB ESD protection diode diverts a short electrostatic-discharge transient away from vulnerable circuitry while adding as little loading as practical to the normal signal. Selection depends on the protected pin: high-speed data, configuration, sideband and power pins have different voltage and signal-integrity requirements. A diode rating alone does not prove that the finished port … Read more
What Is a Low Clamping Voltage TVS?
A low clamping TVS is chosen by its clamping voltage at the fault current, not by breakdown voltage. What the datasheet rows mean and how the margin is checked.
SMBJ TVS Diodes: Package, Polarity and 24 V Rail Selection
An SMBJ TVS diode is a 600 W part in a DO-214AA body with a 5-188 V standoff range. How the rating, the CA bidirectional option and clamping decide fit.
Is an SMAJ TVS Diode the Right Surge Protector for Your Design?
An SMAJ TVS diode can be a useful rail protector when its voltage window and pulse capability match the disturbance. It should remain acceptably inactive during normal operation, clamp the defined transient low enough for the protected circuit, and survive the resulting current at its starting temperature. The familiar 400 W family description answers only … Read more
SMCJ TVS Diodes: Package, Clamping and Device Selection
An SMCJ TVS is a 1500 W class part in a DO-214AB body. What the power class, 5-495 V standoff range and 200 A surge rating actually allow in a design.
What is a bidirectional surge protection diode and how does it work?
Bidirectional TVS diodes clamp in both directions. What 600 W and 130 W parts really specify, and how standoff, clamping and capacitance decide the part.
What Is a Unidirectional TVS Diode? Working, Polarity and Selection
A unidirectional surge protection diode is usually a unidirectional transient voltage suppressor, or TVS diode. Across a positive DC rail, it normally blocks with limited leakage. A sufficiently positive transient drives it into reverse avalanche, diverting surge current through the protection return. A negative transient can forward-bias the same junction. “Unidirectional” describes its asymmetric voltage … Read more
How do TVS diodes solve automotive load dump issues?
Load dump delivers hundreds of joules over tens of milliseconds. What ISO 16750-2 test A actually specifies, and why a 600 W TVS is not the answer.
Low Profile Bridge Rectifier: Compact AC-to-DC Conversion For Modern Power Designs
A low-profile bridge rectifier is a height decision and a thermal decision at once. How I2t versus fuse coordination and creepage decide the low part.
What Is a Single Phase Bridge Rectifier Module?
A single-phase bridge rectifier module loses two forward drops in the output path. What 2 A and 1000 V ratings mean, and how surge and heat decide it.