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FODM121AR2
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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 FODM121AR2 is a single-channel optocoupler featuring a DC input and phototransistor output. It provides an isolation voltage of 3750Vrms with a maximum collector-emitter voltage of 80V. The device supports a maximum DC forward current of 50mA and offers a typical current transfer ratio ranging from 100% to 300% at 5mA input. It operates within a temperature range of -40°C to 110°C, utilizing a 4-SMD surface-mount package.
Feature Summary
- High isolation voltage capability for robust circuit protection
- Fast switching performance with typical rise and fall times of 3µs
- Wide operating temperature range suitable for industrial environments
Applications
- Industrial control systems requiring signal isolation
- Power supply feedback loops
- Communication interface isolation
Procurement Notes
Verify the specific suffix 'R2' against official onsemi documentation to confirm tape-and-reel packaging configuration. Ensure compatibility with standard SMD reflow profiles. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing procurement orders.
Selection Notes
Select this component when high isolation voltage and moderate speed are required in a compact surface-mount form factor. Consider the 80V output voltage limit and 50mA input current constraints during design. Evaluate thermal management requirements given the wide operating temperature range and surface-mount package type for optimal performance.
Part Context
This device belongs to the FODM121 family of transistor-output optocouplers manufactured by onsemi. It is designed for general-purpose isolation applications where reliable signal transmission across isolated boundaries is critical. The product line emphasizes durability and consistent electrical characteristics across varying environmental conditions.
Replacement Considerations
FODM121A is listed as a parameter-equivalent alternative available from onsemi. Verify pinout compatibility and electrical specifications before substitution.
