00:00Need Clean Signal Isolation?
00:02Voltage Spikes Destroy Logic Boards
00:04Found Best Deals for Top 5 Opticoupler Isolator Chips for Signal Decoupling
00:10Breakdown Follows
00:12First, 100-piece PC817DIP 4-Pack
00:16$4.17
00:195-kilovolt Isolation Rating, Breadboard-Ready Pins, Reliable Optical Barrier
00:25Perfect for Lab Stock, Power Supply Feedback Loops, Sensor Decoupling
00:29High 4.9 Rating Across 4,000 Sales
00:33Second, 20-piece PC817C Package
00:37$1.58
00:40C-Rank Current Transfer Ratio Gives Tight, Predictable Switching Margins
00:45Available DIP-4 or SOP-4
00:48Excellent for Consistent Logic Level Shift Without Sorting Individual Pieces
00:54Flawless 5-Star Score
00:56Third, 50-piece PC817DIP 4-Set
01:01$4.41
01:03Built for 5-volt microcontroller safety against inductive flyback spikes from relays and solenoids
01:09Good middle-ground inventory size for small production runs
01:13Proven 5-Star Performance
01:16Fourth, 10-piece PC817 SOP4 SMD Lot
01:21$0.68 Total
01:22Micro Surface Mount Package Freeze Critical Circuit Board Real Estate
01:27Ideal Pick for Custom Compact Boards, Small Enclosures, Cheap Signal Cleanup
01:325-Star Feedback, Rock Bottom Cost
01:35Fifth, 17-Chinese Yuan Series Beginning $20
01:41Exposes Transistor Base Pin
01:43Enables Pull-Down Resistor Tuning to Drain Base Charge Fast, Doubling Switching Speed over PC817
01:50Crucial for AC Zero Cross Detection and Higher Frequency Digital Lines
01:545-Stars
01:56Parts Links Placed in Description
01:59Tap Like, Subscribe for Direct Component Benchmarks
02:03Drop Circuit Questions in Comments