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FODM121AR2V
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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 4-SMD
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：100% @ 5mA
- Current Transfer Ratio (Max)：300% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：3µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- Current - Output / Channel：80mA
- Voltage - Forward (Vf) (Typ)：1.3V (Max)
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：400mV
- Operating Temperature：-40°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Grade：-
- Qualification：-
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Overview
The FODM121AR2V is a single-channel optocoupler featuring an infrared LED input and an NPN phototransistor output. It provides 3750Vrms isolation voltage with a maximum collector-emitter voltage of 80V and peak output current of 80mA. The device operates within a temperature range of -40°C to 110°C, offering a typical rise/fall time of 3µs. It supports a DC forward current up to 50mA and exhibits a current transfer ratio between 100% and 300% at 5mA input.
Feature Summary
- Provides electrical isolation via infrared transmission between input and output circuits
- Features a compact surface-mount Mini-Flat (SMD-4) package design
- Utilizes an NPN phototransistor for digital logic signal transmission
Applications
- Digital logic signal transmission and level shifting
- Power supply control and switching circuits
- Electrical insulation between circuit stages or systems
Procurement Notes
Verify the specific suffix 'R2V' corresponds to the required tape and reel packaging configuration during procurement. Confirm that the 3750Vrms isolation rating meets the safety requirements of the target application environment. Ensure the operating temperature range aligns with system thermal constraints.
Selection Notes
Select this component when high isolation voltage is required in a small surface-mount footprint. Consider the 3µs switching speed for moderate-frequency digital applications. Evaluate the 100%-300% current transfer ratio range to ensure adequate noise margin for the driven load under varying temperature conditions.
Part Context
This part belongs to the FODM121 family of general-purpose optocouplers manufactured by onsemi. It is designed for robust signal isolation in industrial and consumer electronics. The R2V suffix typically indicates specific packaging and handling characteristics distinct from bulk or cut-tape variants.
Replacement Considerations
The FODM121A is documented as a parameter-equivalent substitute. Verify pinout compatibility and isolation voltage ratings before substitution. Ensure the replacement part meets the same RoHS compliance and moisture sensitivity level requirements.
