FAIRCHILD FOD814 Series, FOD617 Series, FOD817 Series Data Sheet
Summary
These three series of phototransistor optocouplers provide excellent signal isolation, characterized by high operating temperatures and a robust 5kVrms isolation voltage. Engineers can utilize manual data covering full electrical characteristics (CTR, saturation voltage) to implement reliable solutions for AC line monitoring, power supply regulation, digital logic interfaces, and microprocessor input sensing. Ideal for demanding industrial and electronic applications requiring stable performance.
Page 1 Text Content
814 S eries, F 617 S eries, F 817 S eries 4-P in ig eratin Tem eratu re P to tran sisto r O to co lers
May 2006
FOD814 Series, FOD617 Series, FOD817 Series
4-Pin High Operating Temperature Phototransistor Optocouplers Features Description AC input response (FOD814 only) The FOD814 consists of two gallium arsenide infrared
Applicable to Pb-free IR reflow soldering emitting diodes, connected in inverse parallel, driving a silicon phototransistor output in a 4-pin dual in-line
Compact 4-pin package
package. The FOD617/817 Series consists of a gallium
Current transfer ratio in selected groups:
arsenide infrared emitting diode driving a silicon
FOD617A: 40–80% FOD817: 50–600%
phototransistor in a 4-pin dual in-line package.
FOD617B: 63–125% FOD817A:80–160% FOD617C:100–200% FOD817B: 130–260% FOD617D:160–320% FOD817C:200–400% FOD814: 20–300% FOD817D:300–600% FOD814A: 50–150% C-UL, UL and VDE approved High input-output isolation voltage of 5000Vrms Minimum BV of 70V guaranteed
Higher operating temperatures (versus H11AXXX counterparts)
Applications FOD814 Series AC line monitor Unknown polarity DC sensor Telephone line interface FOD617 and FOD817 Series Power supply regulators Digital logic inputs Microprocessor inputs
Functional Block Diagram
1ANODE, CATHODE COLLECTOR
COLLECTORANODE
3CATHODE, ANODE EMITTER
CATHODE EMITTER
FOD814 FOD617/817
©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FOD814 Series, FOD617 Series, FOD817 Series Rev. 1.0.5
Page Summary Contents For FAIRCHILD FOD814 Series, FOD617 Series, FOD817 Series Data Sheet
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 12 |
| File Size | 584.08 KB |
| Published | May 19, 2026 |
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Frequently Asked Questions
What is the maximum safety isolation voltage of these optocouplers?
The devices feature a high input-output isolation voltage of 5000Vrms.
What is the temperature rating for these series?
For FOD617 and FOD817, the operating temperature range is -55 to +105°C. The FOD814 operates up to +110°C.
Are these components approved for use in life support equipment?
No, they are not authorized for use as critical components in life support systems without express written approval from the manufacturer.
What types of applications is the FOD814 series best suited for?
The FOD814 Series is applicable to AC line monitoring and unknown polarity DC sensor usage.