ST Fiber Optic Connector 250-3000 um for Machines
ST-style fiber optic connector for 250-3000 um fiber. Robust metal ST bayonet connector for industrial and machine optical links.
This is an ST-style fiber optic connector with a robust metal body and bayonet latch, offered for optical fibers from 250 um up to 3000 um (0.25-3.0 mm). It is used in industrial machines, sensor links and electrical equipment where a rugged, repeatable connector is needed.
Product Overview
The ST interface uses a 2.5 mm ferrule and a bayonet twist-lock coupling. For large-core POF/H-PCF fibers the ferrule bore is sized to the actual fiber, so the connector is listed across a range of core diameters rather than one fixed bore.
Because ST is a common industrial connector style, it is often chosen for retrofit and replacement of machine optical links.
Key Features
- ST bayonet-latch metal connector
- Fiber bore options 250, 500, 750, 1000, 1500, 3000 um
- Rugged metal body for industrial machines
- Strain-relief boot
- Repeatable bayonet coupling
Specifications
| Parameter | Value | Unit | Notes / Conditions |
|---|---|---|---|
| Connector type | ST (bayonet lock) | – | Metal body |
| Available fiber sizes | 250 / 500 / 750 / 1000 / 1500 / 3000 | um | Specify core at order |
| Ferrule diameter | 2.5 | mm | ST standard |
| Insertion loss (typical) | <=0.2 | dB | Per supplier generic connector table |
| Operating temperature | -40 ~ +75 | C | Per generic table |
| Storage temperature | -45 ~ +85 | C | Per generic table |
| Cable diameter range | 0.9 / 2.0 / 3.0 | mm | Per generic table |
Applications
- Electrical machines and drives
- Industrial sensor optical links
- Machine tool data links
- Retrofit and replacement optical cables
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 ST connectors pre-assembled onto your specified fiber and length, or as bulk connector kits. Custom boot and housing colors are available.
FAQ
Which ST connector size do I need? It depends on your fiber core: choose 250, 500, 750, 1000, 1500 or 3000 um to match the actual fiber you are terminating. Send us the fiber outer diameter and core size and we will match the ferrule bore.
Why Choose Us
We match the ferrule bore to your real fiber rather than shipping a generic ST that only fits glass fiber. Send the fiber spec and we confirm before assembly.
For pricing, lead time or custom lengths, contact our sales team.
Related products: You may also need ST (BFOC) POF Connector, 1.0 mm, Custom, ST 1-to-2 Plastic Optical Fiber Splitter and SMA905 PMMA POF Fiber Jumper for Arc Detection, 1.0 mm / 2.2 mm.