The IS604 is an optically coupled isolator consisting of two infrared light emitting diodes connected in inverse parallel and an NPN silicon photo transistor. It features high isolation voltage, AC or polarity insensitive input, and more.
The IS604 is an optically coupled isolator that uses two infrared LEDs in inverse parallel and an NPN silicon phototransistor in a standard 6‑pin DIP package. It is intended for computer terminals, industrial system controllers, telephone sets, and other applications requiring signal transmission between circuits of different potentials.
The datasheet lists key specifications such as a high isolation voltage of 5.3 kVRMS (7.5 kVPK), input forward voltage of 1.2‑1.5 V, collector‑emitter breakdown of 30 V, and power dissipation up to 350 mW. It also includes absolute maximum ratings, thermal characteristics, and detailed electrical parameters for design reference.
| Isolation Voltage | 5.3 kVRMS, 7.5 kVPK |
|---|---|
| Input Forward Voltage (VF) | 1.2‑1.5 V |
| Collector‑emitter Breakdown (BVCEO) | 30 V |
| Collector‑base Breakdown (BVCBO) | 70 V |
| Power Dissipation (total) | 350 mW |
| Turn‑on Time (ton) | 3 µs |
| Turn‑off Time (toff) | 3 µs |
The IS604 provides a high isolation voltage of 5.3 kVRMS (7.5 kV peak).
The device can be stored from –55 °C to +150 °C and operated from –55 °C to +100 °C.
The collector‑emitter breakdown voltage (BVCEO) is rated at 30 V.
The input forward voltage is specified as 1.2 V to 1.5 V at ±10 mA.