Specs side by side
2 parts compared · 20 differing specs across 20 total parameters.
| Parameter | ||
|---|---|---|
| Voltage - Isolation | 5000Vrms | - |
| Operating temperature | -55°C ~ 110°C | - |
| Voltage - Forward (vf) | 1.2V | - |
| Voltage - Output | 35V | - |
| Case | 4-DIP (0.300\", 7.62mm) | DIP-4 / SMD-4 |
| Package | Tube | - |
| Channels | 1 | - |
| Component Category | - | Phototransistor Optocouplers |
| Current - Dc Forward (if) | 50 mA | - |
| Current - Output (channel) | 50mA | - |
| Current Transfer Ratio | 600% @ 5mA | - |
| Input Type | DC | - |
| Market Reality | - | The PC817 is the optocoupler of SMPS feedback loops and low-speed isolation across every price class of equipment - one of the highest-volume optos ever made. Genuine supply is continuous, but the part is a specification, not a single part number: the CTR rank (A / B / C / D or combined bins) and the isolation class decide whether a substitute works, and the second-source universe (LTV-817, EL817, TLP521-1, HCPL-817) is enormous precisely because designers treat the function as generic. The buying question is always which rank and which vendor, not whether the part exists. |
| Mounting | Through Hole | - |
| Output Type | Transistor | - |
| Rise (fall Time) | 4µs, 3µs | - |
| Role In Circuit | - | Original Reference Part |
| Series | LTV-8x7 | - |
| Sourcing Status | - | Active Shenzhen Spot Sourcing (24–48h) |
| Vce Saturation | 200mV | - |