ISOCOM IS621XSM Optocoupler, Triac Output, SMD DIP, 6 Pins, 5.3kV

The ISOCOM IS621XSM is a sophisticated 6-pin optically coupled isolator designed for safe and reliable control of AC loads. This component combines a gallium arsenide infrared emitting diode with a monolithic silicon detector, functioning as a zero-crossing bilateral TRIAC driver. Its primary role is to provide robust electrical isolation between low-voltage control circuits and high-voltage power systems, protecting sensitive electronics from voltage spikes and noise.

A key feature of this optocoupler is its zero-crossing operating mode, which ensures the TRIAC triggers only when the AC load voltage is near zero volts. This dramatically reduces inrush current and electromagnetic interference (EMI), leading to longer component life and improved system reliability. With a high isolation voltage of 5.3kV, it offers excellent protection for both equipment and users.

Housed in a compact Surface Mount DIP (SMD) package, the IS621XSM is ideal for modern, space-constrained printed circuit board (PCB) designs. All critical electrical parameters are 100% tested, guaranteeing consistent performance and meeting the stringent demands of industrial and consumer applications. Its robust construction makes it suitable for driving power TRIACs in a wide range of control scenarios.

Specifications

• Product Range: IS621XSM
• Case Style: Surface Mount DIP (SMD)
• Number of Pins: 6
• Isolation Voltage: 5.3kV
• Triac Operating Mode: Zero Crossing
• Peak Repetitive Off-State Voltage: 600V
• Forward Current: 50mA
• Reverse Voltage: 6V
• Total Power Dissipation: 250mW
• Dimensions (H x W x D): 43mm x 33mm x 15mm
• Weight: 4.536 grams

This reliable optocoupler is a fundamental component for creating safe, efficient, and isolated control interfaces in electronic systems.