1.5KE27A-TP

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A Transient Voltage Suppressor (TVS) diode is a solid-state semiconductor device that is primarily used to protect sensitive electronic circuitry from damage due to electrical transients, or voltage spikes. TVSs can also be used to suppress noise on power lines, prevent accidental short-circuits, and provide ESD protection. The 1.5KE27A-TP is a general-purpose, three-terminal unidirectional TVS diode, designed to protect sensitive electronic equipment against voltage transients.

The 1.5KE27A-TP is rated for peak pulse power dissipation of 1.5 k Watts and a working voltage of 27 volts. It has a fast, low-capacitance response time of 5 ps, making it ideal for high-speed data lines, and a low reverse leakage current of 1 uA. The diode is also quite small, measuring just 0.062 inches by 0.022 inches. The 1.5KE27A-TP has been designed to meet the UL 1449 3rd edition requirements for protection against surges.

The 1.5KE27A-TP TVS diode works by clamping transient voltages that are higher than its working voltage. During an overvoltage condition, the diode conducts current, and its low voltage drop eliminates the need for additional series-protection diodes. The diode behaves like a “crowbar” circuit, which keeps the voltage on the protected line below the breakdown voltage to minimize the surge energy. The diode also absorbs the surge energy and dissipates it as heat.

The 1.5KE27A-TP TVS diode is primarily used in communications and industrial applications. It can be used to protect networks and data lines from electrostatic discharge (ESD) and lightning-induced transients, and in power-line applications it can be used to protect against negative transients. The diode is also suitable for use in automotive and avionics applications, due to its military-grade (JESD-22) qualification.

In summary, the 1.5KE27A-TP TVS diode is a versatile device that can be used to protect sensitive electronics from voltage transients. Its fast, low-capacitance response time makes it ideal for protecting data lines from ESD and lightning-induced transients. It is also small and can meet the UL 1449 3rd edition requirements for surge protection. The diode is suitable for use in a wide range of applications, from network and data protection to automotive and avionics.

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