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FODM214
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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 4-SOP
- Series：FODM214
- Mfr：onsemi
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：20% @ 1mA
- Current Transfer Ratio (Max)：400% @ 1mA
- Turn On / Turn Off Time (Typ)：3µs, 3µs
- Rise / Fall Time (Typ)：3µs, 3µs
- Input Type：AC, DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：400mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：4-SOP
- Grade：-
- Qualification：-
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Overview
The FODM214 is a single-channel phototransistor optocoupler featuring an AC/DC sensing input. It utilizes two inverse-connected gallium arsenide infrared emitting diodes to enable bidirectional current flow for AC signal detection. The device provides electrical isolation with a rated insulation voltage of 3750 Vrms. Key electrical parameters include a collector-emitter voltage of 80 V, a maximum forward current of 50 mA, and a current transfer ratio ranging from 20% to 400%. The unit operates within a temperature range of -55°C to +110°C.
Feature Summary
- Bidirectional AC sensing capability via dual inverse-connected infrared LEDs
- High-voltage electrical isolation for safety-critical applications
- Wide operating temperature range suitable for industrial environments
Applications
- AC mains voltage monitoring and detection circuits
- Industrial control systems requiring isolated signal feedback
- Power supply units with primary-side regulation
Procurement Notes
Verify the specific package variant during procurement, as the FODM214 series includes both MFP-4 (Mini-Flat) and SOP-4 configurations. Confirm that the selected component matches the required insulation voltage rating of 3750 Vrms for the intended application safety standards. Ensure compatibility with surface-mount assembly processes if utilizing the SMD variants.
Selection Notes
Select this component when bidirectional AC input sensing is required without additional external rectification circuitry. The wide Current Transfer Ratio (CTR) range of 20% to 400% allows for flexibility in drive current design. Consider the thermal dissipation limits and ensure the operating temperature remains within the specified -55°C to +110°C range for reliable long-term performance.
Part Context
The FODM214 belongs to onsemi's family of transistor-output optocouplers designed for general-purpose isolation. It serves as a compact solution for isolating low-voltage control logic from higher-voltage AC or DC lines. The integration of dual LEDs distinguishes it from standard single-LED optocouplers, simplifying AC signal interface designs.
Replacement Considerations
FODM214R2 is a documented variant within the same series, offering identical electrical characteristics but packaged in SOP-4 instead of Mini-Flat 4-pin.
