Optocoupler modules typically range from $0.50 to $5 per unit, depending on type, channel count, and vendor.

Price Overview

• PC817 Optocoupler Modules: Single-channel PC817 modules are commonly priced around $0.50 to $1.50 per unit, while multi-channel versions (up to 20 channels) can cost $5 or more, depending on the number of channels and supplier .
• High-Speed Optocouplers (e.g., 6N138): Packs of 10 units are available on Amazon for approximately $5 to $10, making the per-unit cost around $0.50 to $1 .
• Standard Optocouplers (e.g., 4N35): Single-channel 4N35 modules are priced similarly, typically $0.50 to $1 per unit, with bulk purchases reducing the cost further .

Vendor Examples

• DigiKey and Mouser Electronics offer a wide range of optocouplers with prices varying by model, speed, and input/output configuration. Prices are often listed per unit and may include additional tariffs if shipping internationally .
• Amazon provides both individual modules and multi-packs, which can be convenient for hobbyists or small-scale projects, with prices reflecting brand and quantity .

Factors Affecting Price

1. Channel Count: Multi-channel modules cost more than single-channel versions.
2. Speed and Type: High-speed or specialized optocouplers (e.g., photodiode Darlington output) are priced higher.
3. Quantity: Bulk purchases reduce the per-unit cost.
4. Vendor and Shipping: Prices vary slightly between distributors and may include tariffs or shipping fees. In summary, for a typical PC817 or 4N35 optocoupler module, expect to pay $0.50–$1.50 per unit, while multi-channel or high-speed modules can reach $5 or more per unit, depending on specifications and supplier .