- Home
- Our Products
- Fiber Optic Connector Module
- SMI Connector for Industrial Control / Medical Sensor Cable
SMI Connector for Industrial Control / Medical Sensor Cable
The SMI connector is a compact plastic optical fiber connector used on industrial control equipment and medical sensor signal cables. It provides a small, light-weight optical link for sensor data and control signals where EMI immunity matters.
Product Overview
SMI is a small-form POF connector typically used in sensor and device internal optical links. Its compact body suits space-limited medical and industrial instrumentation.
Because it is plastic and light-weight, the SMI is a cost-effective choice for short sensor signal runs rather than long backbone links.
Key Features
- Compact SMI POF connector
- For industrial control and medical sensors
- EMI-immune optical signal link
- Light-weight plastic body
- Short sensor signal cable termination
Specifications
| Parameter | Value | Unit | Notes / Conditions |
|---|---|---|---|
| Connector type | SMI | – | Compact POF connector |
| Typical use | Sensor / control signal link | – | Industrial and medical |
| Fiber type | POF | – | Large-core plastic optical fiber |
| Insertion loss (typical) | <=0.2 | dB | Per supplier generic connector table |
| Operating temperature | -40 ~ +75 | C | Per generic table |
| Cable diameter | 0.9 / 2.0 / 3.0 | mm | Per generic table |
Applications
- Industrial control equipment
- Medical sensor signal cables
- Instrumentation optical links
- EMI-sensitive sensor connections
See our full fiber optic connector range for other connector styles and fiber sizes. Visit the home page or read the FAQ for fiber selection help.
Ordering & Customization
We can supply SMI-terminated sensor cables to length and port spec. Send the device model and cable run length for a quotation.
FAQ
What is the difference between SMI and ST/SMA905? SMI is a smaller, light-weight plastic connector for short sensor/control links, while ST and SMA905 are larger rugged metal connectors for machine and industrial jumpers. Choose SMI for compact device ports and ST/SMA905 for rugged external cables.
Why Choose Us
We match the SMI termination to your actual port and fiber, and keep assembly records per order so replacement cables match.
For pricing, lead time or custom lengths, contact our sales team.
Related products: You may also need SMA905 Industrial POF Patch Cord / Jumper, ST 1500 um (1.5 mm) Large Aperture POF Connector and SC APC to LC UPC Duplex Single-Mode G.657A Fiber Patch Cord.

