The Everlight EL817 series phototransistor photocoupler datasheet provides specifications, electrical characteristics, and package information.
The EL817 series phototransistor photocoupler from Everlight is a 4‑pin DIP device used in isolation applications such as telecom, home appliances, and signal transmission. It offers high isolation voltage, wide current transfer ratio options, and RoHS‑compliant construction.
The datasheet lists absolute maximum ratings, electro‑optical characteristics, transfer ratios for each CTR grade, and detailed ordering and packaging options. It also includes recommended soldering profiles and safety precautions for reliable integration.
| Isolation Voltage | 5000 V rms |
|---|---|
| Operating Temperature | -55 to 110 °C |
| Collector‑Emitter Voltage (VCEO) | 35 V |
| Forward Voltage (VF) | 1.2 – 1.4 V |
| Current Transfer Ratio (CTR) | 50 % – 600 % |
| Isolation Resistance (RIO) | 5×10^10 Ω |
| Rise Time (tr) | 4 – 18 µs |
| Fall Time (tf) | 3 – 18 µs |
The isolation voltage is rated at 5000 V rms.
It can operate from –55 °C to +110 °C.
The CTR ranges from 50 % to 600 % (measured at IF = 5 mA, VCE = 5 V).
The absolute maximum forward current (IF) is 60 mA.