ChipApex | Global Electronic Components Supplier
FOD814
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-DIP
- Series：-
- Mfr：onsemi
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：20% @ 1mA
- Current Transfer Ratio (Max)：300% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：AC, DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：200mV
- Operating Temperature：-55°C ~ 105°C
- Mounting Type：Through Hole
- Package / Case：4-DIP (0.300", 7.62mm)
- Supplier Device Package：4-DIP
- Grade：-
- Qualification：-
Download product information
Overview
The onsemi FOD814 is a single-channel, transistor-output optocoupler featuring dual inverse-parallel gallium arsenide infrared LEDs driving a silicon phototransistor. It supports AC and DC input signals with a maximum forward current of 50 mA and a typical forward voltage of 1.2 V to 1.4 V. The device provides 5000 Vrms isolation voltage and an NPN phototransistor output rated for 70 V collector-emitter voltage and 50 mA collector current. Current transfer ratios range from 20% to 300%, with typical rise/fall times of 4 µs/3 µs (SMD) or 18 µs (DIP). Operating temperatures span -55°C to 105°C/110°C.
Feature Summary
- Dual inverse-parallel LED configuration enables direct AC signal coupling without external rectification.
- High isolation voltage rating ensures robust electrical separation between input and output circuits.
- Wide operating temperature range supports deployment in demanding industrial environments.
Applications
- AC mains detection and monitoring circuits
- Solid-state relay driver interfaces
- Microcontroller I/O isolation for digital signal transmission
Procurement Notes
Verify the specific suffix (e.g., SD for SMD, W for DIP) to confirm package type and pin configuration. Confirm RoHS compliance status and moisture sensitivity level requirements against project specifications. Ensure the selected variant matches the required insulation voltage and thermal performance criteria for the target application environment.
Selection Notes
Select based on required package style (surface mount vs. through-hole) and isolation voltage needs. Verify that the current transfer ratio meets the load requirements at the intended drive current. Check if the standard FOD814 suffices or if the A-series variants are needed for specific regulatory certifications or enhanced performance characteristics.
Part Context
The FOD814 belongs to the FOD814/FOD817 family of general-purpose phototransistor optocouplers. It shares functional similarities with the FOD817 but distinguishes itself through the dual-LED input structure designed specifically for AC applications. This architecture simplifies circuit design by eliminating the need for external diode bridges for AC signal isolation.
Replacement Considerations
FOD817 series parts may serve as substitutes for DC-only applications, though they lack the integrated dual-LED AC capability. Verify pinout compatibility and isolation ratings when cross-referencing with other generic transistor-output optocouplers.
