FODM217C

Overview

The FODM217C is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output with a maximum collector-emitter voltage of 80 V and a collector current of 50 mA. The device provides 3750 Vrms isolation voltage and operates within a temperature range of -55°C to +110°C. Key electrical parameters include a forward current of 50 mA, a forward voltage of 1.4 V, and a saturation voltage of 400 mV. The current transfer ratio ranges from 200% to 400%, with rise and fall times of 3 µs. It is housed in a 4-SOP surface-mount package.

Feature Summary

• Provides high-voltage isolation of 3750 Vrms between input and output circuits.
• Features fast switching performance with typical rise and fall times of 3 microseconds.
• Designed for AC/DC sensing applications with a wide operating temperature range.

Applications

• AC/DC sensing input circuits
• General-purpose signal isolation
• Single-channel data transmission

Procurement Notes

Verify the specific suffix (e.g., CV, CR2V) against the required packaging format, such as tube or reel, as these affect logistics but not function. Confirm RoHS compliance status via official manufacturer declarations. Ensure the ordering part number matches the exact current transfer ratio grade needed for the design. Cross-reference datasheet revisions to confirm pinout and thermal characteristics remain consistent with previous versions.

Selection Notes

Select this component when a single-channel transistor output is required for moderate-speed signal isolation. The FODM217C offers a balance of speed and gain suitable for general industrial applications. Consider the C-grade current transfer ratio if higher gain is not strictly necessary. Verify that the SOP-4 package dimensions fit the available PCB space. Compare against other FODM217 variants if different packaging or CTR grades are preferred.

Part Context

The FODM217C belongs to the FODM217 series of transistor output optocouplers from onsemi. This series includes variants with different current transfer ratios and packaging options, such as the FODM217A, B, D, and their respective reel or tube suffixes. All members share the same core electrical architecture and isolation capabilities, differing primarily in gain specifications and supply configuration.

Replacement Considerations

Direct substitutes within the same family include FODM217CV and FODM217CR2V. These parts share identical electrical specifications and pinouts but differ in packaging type. Verify that any replacement maintains the required 3750 Vrms isolation and 80 V collector-emitter voltage ratings.

FAQ

What is the maximum collector-emitter voltage for the FODM217C?

The maximum collector-emitter voltage is 80 V.

Does the FODM217C support AC input signals?

Yes, it is specified for AC/DC sensing input applications.

What is the typical switching speed of this optocoupler?

The typical rise and fall times are both 3 microseconds.