SMLJ8.5CA

Voltage - Clamping (Max) @ Ipp:	14.4V
Supplier Device Package:	SMC (DO-214AB)
Package / Case:	DO-214AB, SMC
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	3000W (3kW)
Current - Peak Pulse (10/1000µs):	208.4A
Series:	SMLJ
Voltage - Breakdown (Min):	9.44V
Voltage - Reverse Standoff (Typ):	8.5V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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SMLJ8.5CA Application Field and Working PrincipleAs a type of TVS (Transient Voltage Suppressor) Diode, the SMLJ8.5CA is designed for protecting circuits against transients such as inductive kickback, ESD (Electrostatic Discharge), and EFT (Electrical Fast Transient) caused by electrostatic surge. It is widely used in industrial, aerospace, and military applications where high reliability is required.The SMLJ8.5CA has a working voltage range from 8V to 5A, making it suited for use in low-power applications. Its peak pulse power (dissipative limit) is 400W, with a breakdown voltage of 8V and a clamping voltage of 14V. The reverse leakage current is usually about 1 µA. It can handle up to 5A of repetitive peak current and 32A of single pulse current.The SMLJ8.5CA is constructed with a high-reliability glass passivated junction and features fast response times (within 1ns) and a low capacitance of 10pF. This diode comes in a standard DIP (Dual In-line Package) form factor, making it suitable for surface mount and through-hole applications. The typical operating temperature range is -54°C to+150°C.To understand the working principle of the SMLJ8.5CA, it is important to understand its basic components. Firstly, it consists of a metal-oxide semiconductor (MOS) transistor and a voltage overload protection diode. The MOS transistor acts as a switch to allow the passage of electrical current through the diode. It also provides an isolated path for the current to pass through when the voltage exceeds the breakover voltage of the diode.The voltage overload protection diode is designed to protect the circuit from electrostatic build-up and voltage spikes. It helps to limit the voltage across the circuit components, thus preventing them from damage. The SMLJ8.5CA can help protect the circuit from damage caused by Voltage transients, such as electrostatic discharge and inductive kickback. The SMLJ8.5CA also features a low capacitance of 10pF. This means it can react quickly and accurately to voltage transients, which helps improve the circuit\'s reliability. Overall, the SMLJ8.5CA is an ideal protection solution for circuits that require fast response time and high reliability. The high reverse leakage current and low capacitance make it well suited for use in a wide range of applications, such as industrial, aerospace, and military. Additionally, its small size and low power consumption make it ideal for use in low-power applications. This makes the SMLJ8.5CA a great choice for protecting circuits and components from the damaging effects of transients.

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