1.5KE91CA-B

Voltage - Clamping (Max) @ Ipp:	125V
Supplier Device Package:	DO-201
Package / Case:	DO-201AA, DO-27, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Current - Peak Pulse (10/1000µs):	12.2A
Series:	1.5KE
Voltage - Breakdown (Min):	86.5V
Voltage - Reverse Standoff (Typ):	77.8V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

1.5KE91CA-B Application Field and Working Principle

Introduction

TVS-diodes, also known as Transient Voltage Suppression-diodes, are three-terminal devices that protect other components or circuit boards from excessive voltage and current. 1.5KE91CA-B is a very common TVS diode designed and manufactured by the popular semiconductor company ON Semiconductor. It is ideal for protecting delicate electronic components from high voltage and current stresses, such as those created by ESD (electrostatic discharge) or lightning. Its surge current ratings range from 5.8A to 8.3A.

Application

1.5KE91CA-B is primarily designed for use in low-voltage, high-voltage, and electrostatic discharge (ESD) protection applications. Its size and organization makes it suitable for surface-mount technologies, such as automotive, consumer, and lighting circuits. It can also be found in routers, data centers, power supplies, and other areas. It\'s compact size also makes it suitable for use in small devices where its presence is often not noticeable.

Construction and Working Principle

1.5KE91CA-B is a three-legged component with two anodes and a cathode. It is made up of a PN junction constructed of silicon, and it also contains a charge storage region, which is formed by diffusing dopant impurities into the silicon substrate. When an external voltage is applied to the device, a small current will flow from the anode to the cathode. If the voltage increases beyond the breakdown voltage of the PN junction, a large current will be able to flow until the breakdown voltage has been reached. This large current flow triggers a protection mechanism, which will in turn provide protection against excessive voltage or current in the circuit.

Major Characteristics

1.5KE91CA-B has several major characteristics that make it an ideal choice for many electronics applications. It has a high surge current rating of 8.3A, and a peak surge current of 17A, which is very impressive. It also has a breakdown voltage of 91V, which provides a wide range of protection. The pulse power rating is 40W, which allows it to withstand a wide range of power surges. Finally, the peak pulse power rating is 110W, which gives it the ability to handle even higher power surges.

Conclusion

1.5KE91CA-B is a versatile and reliable TVS diode that is suitable for many electronics applications. Its high surge current rating, wide breakdown voltage, and pulse power ratings make it an ideal choice for protecting delicate electronics components from damaging voltage and current stresses. Its small size also makes it ideal for use in many devices.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description