This document introduces the features and characteristics of Fairchild Semiconductor Corporation's FOD814 series, FOD617 series and FOD817 series 4-pin high operating temperature phototransistor optocouplers.
The FOD814, FOD617 and FOD817 series are 4‑pin high‑temperature phototransistor optocouplers offered by Fairchild Semiconductor. They are used for AC line monitoring, unknown‑polarity DC sensing, telephone line interfaces, power‑supply regulation, digital logic and microprocessor inputs.
The document lists absolute maximum ratings, electrical and optical characteristics, transfer ratios, isolation specifications, package dimensions for both through‑hole and surface‑mount versions, and recommended lead‑free IR reflow soldering profiles. It also includes trademark information and product status definitions.
| Current Transfer Ratio (CTR) – FOD814 | 20‑300 % |
|---|---|
| Current Transfer Ratio (CTR) – FOD617A | 40‑80 % |
| Minimum BVCEO | 70 V |
| Storage Temperature (all series) | -55 °C to +150 °C |
Yes, the devices are C‑UL, UL and VDE approved.