Specs side by side
2 parts compared · 18 differing specs across 18 total parameters.
| Parameter | ||
|---|---|---|
| Voltage - Isolation | - | 5300Vrms |
| Operating temperature | - | -55°C ~ 100°C |
| Voltage - Forward (vf) | - | 1.18V |
| Voltage - Output | - | 30V |
| Case | DIP-6 | 6-DIP (0.300\", 7.62mm) |
| Package | - | Tube |
| Channels | - | 1 |
| Component Category | Phototransistor Optocouplers (6-pin) | - |
| Current - Dc Forward (if) | - | 100 mA |
| Current Transfer Ratio | - | 100% @ 10mA |
| Input Type | - | DC |
| Market Reality | The 4N2x / 4N3x row is the general-purpose opto that predates the PC817 and still fills industrial boards, instruments and old audio gear: a 6-pin DIP with an infrared LED, a phototransistor, and one extra pin the 4-pin generation gave up - the base of the phototransistor, brought out for speed-up tricks and threshold trimming. The family is a CTR ladder wearing four part numbers: 4N25/26 at 20% minimum, 4N27/28 at 10%, and the 4N35/36/37 trio at 100% - one of the highest CTRs of any general-purpose opto, which is why it survives in circuits that need gain more than speed. Substituting within the row is honest work; substituting against the 4-pin PC817 row is the classic socket error. | - |
| Mounting | - | Through Hole |
| Output Type | - | Transistor with Base |
| Role In Circuit | Original Reference Part | - |
| Sourcing Status | Active Shenzhen Spot Sourcing (24–48h) | - |
| Turn On (turn Off Time) | - | 2µs, 2µs |
| Vce Saturation | - | 300mV |
Parts
- 4N35 / 4N25 · onsemi
- 4N37 · onsemi