Last-time-buy — sourcing the H11AG1TVM for existing BOM lines
The H11AG1TVM is classified as Last Buy by onsemi, meaning the manufacturer has announced end-of-life and is accepting final orders through a defined window — after which no further production runs. For designs already qualified to this 1-channel, DC-input, transistor-with-base-output optoisolator, the sourcing path is through independent distribution: we source and quote against your RFQ, confirming availability and pricing at quote time.
The 4170 Vrms isolation rating certifies galvanic isolation for reinforced insulation in mains-connected circuits — suitable for AC line monitoring, motor drive feedback, or industrial sensor isolation where the optocoupler bridges a hazardous-voltage boundary. A minimum current transfer ratio of 100% at a forward current of just 1 mA means the output transistor saturates with a very low LED drive current — a key parameter for battery-powered or microcontroller-driven designs where the I/O pin cannot source tens of milliamps. The 5 µs typical turn-on and turn-off times place this part in the medium-speed class for optocouplers — adequate for 50/60 Hz line-frequency sensing, relay-drive logic, and DC signal isolation, but not for high-speed data or switching power supply feedback loops.
Package and deployment context — 6-DIP through-hole
The 6-DIP (0.400-inch, 10.16 mm) through-hole package with a 30 V output maximum and 50 mA per-channel output current is a legacy footprint — it requires a board spin to replace with a surface-mount alternative, so the Last Buy status makes it critical to secure enough inventory for the remaining production run.