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FODM121BV
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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 4-SMD
- Series：-
- Mfr：onsemi
- Package：Box
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：50% @ 5mA
- Current Transfer Ratio (Max)：150% @ 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
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Overview
The FODM121BV is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and operates with a maximum collector-emitter voltage of 80 V and a collector current of 80 mA. The device provides an isolation voltage of 3750 Vrms and supports a forward current of up to 50 mA. It is housed in a 4-SMD, gull wing package suitable for surface mount applications. The component operates within a temperature range of -40°C to +110°C.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits
- Utilizes a compact surface-mount package for automated assembly
- Features fast switching characteristics with typical rise and fall times of 3 µs
Applications
- General-purpose signal isolation in industrial control systems
- Interface circuits for microcontrollers and logic devices
- Power supply feedback loops requiring galvanic isolation
Procurement Notes
Verify the specific suffix 'BV' against the manufacturer's latest documentation, as availability may vary. Confirm that the requested quantity aligns with standard factory packaging configurations. Ensure compliance with RoHS directives if required by the end application. Cross-reference the datasheet revision date to confirm parameter validity before finalizing procurement specifications.
Selection Notes
Select this component when a single-channel transistor output is required for moderate-speed signal transmission. The 3750 Vrms isolation rating suits applications demanding robust barrier protection. Consider the 4-SMD package dimensions for PCB layout constraints. Verify that the 80 V collector voltage meets the load requirements of the target circuit design.
Part Context
This part belongs to the FODM121 series of transistor output optocouplers from onsemi. The series is designed for general-purpose isolation tasks. The FODM121BV variant specifically denotes the tape and reel packaging configuration or specific manufacturing lot attributes defined by the manufacturer. It shares core electrical characteristics with other variants in the family while differing in packaging or ordering suffixes.
Replacement Considerations
The FODM121B is listed as a parametric equivalent substitute. Verify pinout compatibility and electrical parameters before substitution. Ensure the replacement part meets the same isolation voltage and package type requirements.
