Cheap And Discounts FSQ510 0.36 A SWITCHING CONTROLLER, 100 kHz SWITCHING FREQ-MAX, PDIP7, ROHS COMPLIANT, MS-001BA, DIP-7 Wholesale. Buy Directly From Merchant HWS Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.