DALC112S1RL Circuit Protection

Current - Peak Pulse (10/1000µs):	--
Base Part Number:	DALC112
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	--
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	--
Series:	DA1
Voltage - Clamping (Max) @ Ipp:	--
Voltage - Breakdown (Min):	--
Voltage - Reverse Standoff (Typ):	15V
Unidirectional Channels:	6
Type:	Steering (Rail to Rail)
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes: DALC112S1RL Application Field and Working Principle

TVS - Diodes are an essential component of electrical and electronic equipment. They have become increasingly popular among electronic engineers and designers due to their superior surge protection capabilities. DALC112S1RL is a low capacitance TVS Diode used for the protection of high speed data lines as well as sensitive equipment from overload voltage surges.

What are TVS Diodes?

TVS diodes (Transient Voltage Suppression diodes) are specialized diodes that provide over-voltage and over-current protection. They are used to protect sensitive components from voltage and current spikes, and can help prevent equipment from suffering catastrophic destruction. They are designed to absorb and dissipate the energy of electrical transients which can occur due to various reasons, including lightning strikes, electrostatic discharge, and AC line surges.

What is DALC112S1RL?

DALC112S1RL is a low capacitance (100 to 150pF) TVS Diode designed to provide over-voltage and over-current protection for high speed data lines and sensitive electronic equipment. It is designed to protect components from voltage and current surges that can occur due to lightning strikes, electrostatic discharge, and AC line surges. It has a low clamping voltage of 34V (at 10A) and is capable of peak current of 350A (10/1000μs).

Application Field of DALC112S1RL

DALC112S1RL is primarily used in applications where high speed data line protection is required. These include cellular phones, tablet computers, computer peripherals, laptops, and TV receivers amongst others. It is also used for providing secondary protection for low voltage power supplies rated at up to 5.5V and USB applications. It provides reliable and robust protection from voltage and current surges, and also helps reduce electromagnetic interference (EMI).

Working Principle of DALC112S1RL

When an over-voltage or over-current surge occurs in an electrical system, it can cause serious damage to sensitive components. The DALC112S1RL uses avalanche breakdown for protection. It contains a PN junction or an avalanche diode which is operated in reverse bias mode. When a transient voltage higher than the diode\'s breakdown voltage is applied reversely to the PN junction, a sudden large current flows through the junction due to the avalanche effect. This sudden current dissipates the energy of the transient, thus providing protection to the downstream components.

Conclusion

The DALC112S1RL is a low capacitance TVS Diode used for protecting high speed data lines and sensitive equipment from overload voltage and current surges. It provides reliable and robust protection from voltage and current surges and is capable of absorbing high surge power. It is mainly used in cellular phones, tablet computers, computer peripherals, TVs, and USB connections. Its working principle is based on the avalanche breakdown effect which absorbs the energy of the transient by producing an avalanche current.

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