10 Mbps open-collector optocoupler with 5000 Vrms isolation
The 6N137TSVM is a single-channel optocoupler from onsemi that switches at 10 Mbps and delivers a 5000 Vrms isolation barrier — the combination that makes it a standard choice for isolating digital buses like CAN, RS-485, or logic-level signals where you need galvanic separation without sacrificing speed. The open-collector output sinks up to 50 mA and runs on a 4.5 V to 5.5 V supply, so it mates directly with 5 V logic families without a level translator.
75 ns propagation delay and 10 kV/µs CMTI
Maximum propagation delay is 75 ns in both directions (tpLH and tpHL), and the typical rise/fall times are 30 ns and 10 ns respectively — these numbers set the timing budget for the isolation channel and must be accounted for in the system's worst-case signal path.
Active production with ROHS3 compliance
It comes in a tube of 8-SMD gull-wing parts (package/case 8-SMD, Gull Wing), a surface-mount footprint that saves board space compared to the through-hole DIP-8 variant of the same base device.
Supply and forward current limits
The LED side needs a forward voltage of 1.45 V typical and a maximum DC forward current of 50 mA — a standard 330 Ω series resistor from a 5 V logic output will bias the LED within limits.