Jack Optocoupler EL817S U7 A2 IC 87 – SMD Photocoupler IC

The Jack Optocoupler EL817S (U7 / A2 / U4 / IC 87) from Kazze is a precision SMD photo-coupler IC used in Jack industrial sewing machine motor control boards. This critical component provides electrical signal isolation between the control circuit and motor drive circuit — preventing voltage spikes, noise interference, and board damage. A faulty optocoupler causes signal loss, erratic machine behaviour, or complete control failure.

✅ Key Features:

• EL817S SMD Optocoupler — High-speed photo-coupler for precise signal isolation
• SOT-23 / SOP-4 Package — Compact surface-mount design for direct PCB replacement
• Multi-Reference Compatibility — Used as U7, U4, A2 & IC 87 across Jack PCB boards
• High CTR Ratio — Reliable signal transfer with minimal power loss
• Jack Specific Use — Compatible with Jack industrial sewing machine control boards

🔧 Recommended For: Signal isolation repair, optocoupler replacement & Jack machine electronic PCB servicing.

Source genuine Jack sewing machine spare parts at Kazze — precision-engineered components trusted by garment factories across India.

📞 For Orders & Enquiries: Call +91 9211877277 🌐 Visit: www.kazze.in