P4SMA7.5A

Voltage - Clamping (Max) @ Ipp:	11.3V
Supplier Device Package:	DO-214AC (SMA)
Package / Case:	DO-214AC, SMA
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	400W
Current - Peak Pulse (10/1000µs):	36.3A
Series:	P4SMA
Voltage - Breakdown (Min):	7.13V
Voltage - Reverse Standoff (Typ):	6.4V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes

Transient Voltage Suppressor (TVS) diodes are semi-conductor devices which have been specifically designed to limit voltage that exceeds normal levels. This function is performed through the use of a specially designed avalanche or Zener diode that is designed for over-voltage protection that is available in either uni-directional or bi-directional options. These diode devices provide protection against electrostatic discharge (ESD), transients, and/or common mode voltages that are typically more severe than less sensitive devices such as reverse-biased diodes. As such, TVS diodes are commonly used in a variety of different applications for over-voltage protection in automotive, industrial, commercial, and residential applications. In this paper, we will dive into the application fields and working principles of P4SMA7.5A, a uni-directional TVS diode that is specifically designed for use in the expansion card slot designs of computer motherboards or peripheral cards.P4SMA7.5A is an ultra-small glass passivated 14-Lead JEDEC DO-214AB package with an Insulation Type of SMA that is designed for an I-T-A (Current-Voltage-Temperature) rating of 7.5A 8.0/71V at 25°C. The package has a peak pulse power rating is 700W and a surge peak forward current of 7.5A. It has a lead-free finish and leads made of solderable per MIL-STD-202 method 208 for lead-free soldering compatibility. The P4SMA7.5A is able to provide excellent clamping capability to protect against ESD events or other transients. The peak-pulse-power (PPP) rating is 800W and the maximum working voltage is 8.0V, ensuring excellent over-voltage protection for sensitive components in computer motherboards and peripheral cards. It is specifically designed to protect against ESD-susceptible devices from power surges and the associated catastrophic damage that can result from such transients, thus making it an ideal device for a variety of commercial and consumer applications. The P4SMA7.5A has an excellent clamping ratio and low leakage current of 10uA at 8V. The P-channel MOSFET integrated circuit (IC) structure is designed to provide an effective clamping action which reduces transients to a safe voltage level. Its low VF of 0.60V enables the device to provide increased protection against over-voltage transients. The working principle of P4SMA7.5A is fairly simple: When a voltage potential above the 8V breakdown voltage is applied, the diode clamps the voltage to 8V. When the voltage potential returns to below the breakdown voltage, the diode turns off. The P4SMA7.5A is able to provide this clamping action in an efficient manner, providing excellent protection from over-voltage transients. In conclusion, the P4SMA7.5A uni-directional TVS diode is an ideal choice for over-voltage protection in computer motherboards and peripheral cards. Not only does it provide a high level of protection from ESD-susceptible devices, but it is also able to do so in an efficient manner, thanks to the IC structure and low VF. As such, it is an excellent choice for a variety of commercial and consumer applications.

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