SMA905 High-Power Fiber Optic Connector, 230-2000 um Bore for Large-Core POF / H-PCF
SMA905 high-power fiber optic connectors accept large-core fibers from 230 um up to 2000 um (0.23-2.0 mm), built for high-power light delivery where standard small-bore connectors are unsuitable. They are commonly used with large-core POF, H-PCF and liquid light guide applications.
Product Overview
The SMA905 is a threaded, ferrule-based connector widely used for high-power visible and near-IR light delivery. This variant is bored to match large-core fibers in seven sizes – 230, 250, 500, 750, 1000, 1500 and 2000 um – so you select the bore that matches your fiber core. The connector body is stainless steel / nickel-plated and supplied with a black strain-relief boot and protective cap. Explore related parts on the fiber optic connector module category page.
Key Features
- Seven large-core bore sizes: 230 / 250 / 500 / 750 / 1000 / 1500 / 2000 um.
- High-power design for large-core light delivery rather than standard telecom SM/PC.
- Stainless / nickel-plated body with knurled coupling nut and black strain-relief boot.
- Low typical insertion loss and threaded SMA905 interface for repeatable connection.
- Supplied as components or assembled to your specified large-core fiber.
Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Connector type | SMA905 | – | high-power design |
| Fiber bore sizes | 0.23 / 0.25 / 0.50 / 0.75 / 1.0 / 1.5 / 2.0 | mm | 230-2000 um large-core POF / H-PCF |
| Insertion loss typical (PC) | <=0.3 | dB | SM column of reference table |
| Insertion loss typical (UPC) | <=0.2 | dB | SM column |
| Insertion loss typical (MM PC) | <=0.2 | dB | MM column |
| Return loss (PC) | >=45 | dB | SM |
| Return loss (UPC) | >=50 | dB | SM |
| Return loss (MM) | >=30 | dB | MM |
| Operating wavelength | 1310 / 1550 | nm | table reads 1310,15110; normalized to 1310/1550 |
| Exchangeability | <=0.2 | dB | reference table |
| Vibration | <=0.2 | dB | reference table |
| Operating temperature | -40 to +75 | deg C | reference table |
| Storage temperature | -45 to +85 | deg C | reference table |
| Cable diameter range | Phi3.0 / Phi2.0 / Phi0.9 | mm | reference table |
| Body / hardware | Stainless steel / nickel-plated, black strain-relief boot | – | per product photos |
The optical rows above are taken from the connector reference performance sheet (SMA905 column). For large-core POF / H-PCF light delivery, the bore diameter is the primary selection parameter; confirm exact loss for your core size when ordering.
Applications
High-power light delivery, laser and LED illumination, medical and industrial lighting, spectroscopy, sensor and endoscope light guides, and large-core POF / H-PCF links. Pair this connector with the right fiber: see the Asahi Kasei DB-750 / DB-1000 PMMA POF for decorative visible-light links and the Sumitomo CS-DL72 H-PCF jumper for industrial FA duplex links.
Ordering and Customization
Tell us the required bore size (230-2000 um), your fiber outer diameter, and whether you need the connector loose, as a kit, or pre-assembled onto a cut fiber. Request a quote at sales@fevelectronics.com. Further details are in the FAQ; return to the home page to browse.
FAQ
How do I choose the SMA905 bore size?
Match the connector bore to your fiber core/cladding diameter – for example 230/250 um for thin H-PCF and up to 1500/2000 um for large-core light guides. Using a mismatched bore causes excess loss and poor strain relief.
Is this a standard telecom SM/MM connector?
The SMA905 interface is common in high-power and industrial light delivery. The listed insertion/return values are a connector performance reference; for large-core POF/H-PCF, treat the bore as the key spec and confirm loss for your fiber.
Can you assemble the SMA905 onto my fiber?
Yes – we can supply the connector or assemble it to your specified large-core fiber length. Contact us with the fiber and length.
Why Choose Us
We stock SMA905 high-power connectors across the full 230-2000 um bore range and match them to large-core POF and H-PCF rather than applying generic telecom specs. Start from the connector category or the home page.