VS-VSKL91/10

Current - On State (It (AV)) (Max):	95A
Package / Case:	ADD-A-PAK (3 + 4)
Mounting Type:	Chassis Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Current - Hold (Ih) (Max):	250mA
Current - Non Rep. Surge 50, 60Hz (Itsm):	2000A, 2094A
Current - Gate Trigger (Igt) (Max):	150mA
Voltage - Gate Trigger (Vgt) (Max):	2.5V
Current - On State (It (RMS)) (Max):	210A
Series:	--
Voltage - Off State:	1kV
Number of SCRs, Diodes:	1 SCR, 1 Diode
Structure:	Series Connection - SCR/Diode
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Thyristor is a semiconductor device which is widely used in power electronic applications, such as DC-AC converters, inverters, rectifiers and AC motor control. A SCR (Silicon Controlled Rectifier) or Thyristor is a type of thyristor which uses a positive voltage to turn off the device. SCRs can be used in a variety of applications, including power and lighting control systems, rectification, and motor control applications. VS-VSKL91/10 is a suitable SCR module that specifically works in pulse or reversal control applications. This article will discuss the VS-VSKL91/10 application fields and its working principle.

VS-VSKL91/10

The VS-VSKL91/10 is a SCR module from Eaton Motor Control Ltd. It has a trigger current of 91A, with a maximum rating of 10A. The module has a trigger voltage of 28V, with a maximum permissible operating voltage of 16V. It is designed for use in pulse or open loop applications, including AC motor control. It has self-backed glass passivated blocking diodes to provide over voltage protection.In addition, the VS-VSKL91/10 has an integrated snubber circuit, which helps limit the turn-off overshoot. It also has a built-in current-limiting resistor, which helps reduce the triggering current during high-speed switching.

Application Fields

The VS-VSKL91/10 is suitable for use in pulse and reversal control applications, such as AC motor control. Its wide range of control functions, including zero-crossing, phase control, reverse action, and bidirectional switching, make it suitable for use in a wide range of industries.The key application fields of the VS-VSKL91/10 are AC motor control, heating and lighting control, rectifiers, phase angle control, and industrial automation applications. The VS-VSKL91/10 can be used in systems requiring high-speed switching, such as furnaces, cutting equipment, and other industrial conditioning systems.

Working Principle

The VS-VSKL91/10 SCR module is a thyristor that is switched on and off by applying a control voltage to the gate terminal. The device is triggered by a short pulse of current between the gate and main terminals. When the gate-main current is greater than the turn-on specified current (Igt), the device turns on. The turn-on voltage (Vgt) is a function of temperature, with a typical value of 28V.Once on, the SCR module remains on until the anode-cathode current (Iac) falls below the turn-off voltage specified current (Igt). The device can be turned off by reversing the gate-cathode (G-C) voltage. This is known as commutation or snubbering. The snubber circuit provides protection of the module during fast turn-off transitions.

Conclusion

The VS-VSKL91/10 is a suitable SCR module for use in pulse and reversal control applications, such as AC motor control. It has a trigger current of 91A, with a maximum rating of 10A and trigger voltage of 28V. It has an integrated snubber circuit and current-limiting resistor to limit the triggering current and turn-off overshoot. The VS-VSKL91/10 is suitable for use in a wide range of industries, including AC motor control, heating and lighting control, rectifiers, phase angle control and industrial automation applications.

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