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FOD250L
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Product Detailed Parameters
- Description：OPTOISO 5KV TRANS W/BASE 8-DIP
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：15% @ 16mA
- Current Transfer Ratio (Max)：50% @ 16mA
- Turn On / Turn Off Time (Typ)：1µs, 1µs (Max)
- Rise / Fall Time (Typ)：-
- Input Type：DC
- Output Type：Transistor with Base
- Voltage - Output (Max)：7V
- Current - Output / Channel：8mA
- Voltage - Forward (Vf) (Typ)：1.45V
- Current - DC Forward (If) (Max)：25 mA
- Vce Saturation (Max)：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-DIP
- Grade：-
- Qualification：-
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Overview
The FOD250L is a single-channel logic output optocoupler featuring an AlGaAs LED optically coupled to a high-speed photodetector transistor. Designed for LVTTL and LVCMOS 3.3V applications, it offers a minimum current transfer ratio of 15%. The device supports a maximum forward current of 25 mA and a maximum forward voltage of 1.8 V. It provides an insulation voltage of 5000 Vrms and operates within a temperature range of -40 °C to 85 °C. The unit is housed in an 8-DIP package with through-hole mounting.
Feature Summary
- Integrates an AlGaAs LED with a high-speed photodetector transistor for rapid signal transmission
- Optimized for direct interface with LVTTL and LVCMOS 3.3V logic circuits
- Provides high electrical isolation capability between input and output sides
Applications
- LVTTL/LVCMOS 3.3V logic interfacing
- High-speed data transmission systems
- Digital signal isolation in industrial control
Procurement Notes
Verify the specific suffix (e.g., LT, LSDV) against the datasheet to confirm package type and lead-free status. Ensure the procurement source provides the official Fairchild Semiconductor datasheet for the exact part number variant. Confirm RoHS compliance and operating temperature range requirements match the application environment before finalizing orders.
Selection Notes
Select this component when interfacing 3.3V logic families requires galvanic isolation. The high-speed phototransistor output suits digital communication lines where propagation delay is critical. Verify that the required isolation voltage exceeds 5000 Vrms for the specific safety standards applicable to the target equipment design.
Part Context
The FOD250L belongs to the FOD050L/FOD250L/FOD053L family of LVTTL/LVCMOS 3.3V high-speed transistor optocouplers manufactured by Fairchild Semiconductor. These devices are engineered to replace slower optocouplers in modern low-voltage digital systems, providing enhanced speed and compatibility with 3.3V logic levels while maintaining robust electrical isolation.
Replacement Considerations
Cross-reference with FOD050L or FOD053L if different current transfer ratios or pin configurations are required within the same family. Verify pinout compatibility and thermal characteristics when substituting with other high-speed logic output optocouplers from different manufacturers.
