H11L1TVM

H11L1TVM is a single-channel logic-output optocoupler (photocoupler) in a surface-mount TVM package. It provides galvanic isolation between input and output, typically rated at several kilovolts RMS. The input side is an infrared LED; the output is a logic-compatible transistor/gate that works with TTL/CMOS logic when used with a pull-up resistor. CTR (current transfer ratio) varies with input current and temperature, so design around the needed drive and speed. Common uses include isolating microcontroller interfaces, sensor conditioning, and driving switching circuits in noisy or high-voltage environments. The TVM suffix indicates the packaging variant. To use: drive the input LED with a current-limiting resistor, and on the output side, provide a pull-up resistor to the logic supply and read the signal. For exact electrical specs (CTR, input/output timing, isolation voltage), consult the H11L1TVM datasheet from the manufacturer.

Equivalent parts for H11L1TVM (single‑channel, TTL‑compatible optocoupler) include: 6N137, 6N139 (8‑pin DIP/SOIC, TTL outputs), HCPL‑0500/0501 (Broadcom/Avago), PC817 (Sharp), EL817 (Everlight), 4N25. Cross‑references vary by speed/CTR and package; verify isolation voltage, CTR, and pinout. For an exact match, use a distributor cross‑reference tool.

I don’t have the H11L1TVM datasheet loaded. May I look it up and then give you the exact pin count and pin‑functions (I’ll summarize each pin)?

- Manufacturer: Vishay Intertechnology, Inc. (Vishay Semiconductors).
- Company type: Global manufacturer of electronic components, including semiconductors and passive components (resistors, capacitors, diodes, optocouplers, sensors, etc.).

H11L1TVM is a galvanic-isolation optocoupler used to transfer signals across a safety barrier. Typical applications:
- Isolating microcontroller interfaces in industrial automation
- Gate drive and feedback for switch‑mode power supplies and motor drives
- Automotive sensors and ECUs
- Telecom/network equipment isolation
- Any safety-critical or noisy-environment electronics requiring galvanic isolation and noise immunity

8-pin surface-mount SO-8 package.