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| Coad | 663651 | Type | Fiber Optic Flange | |
| Dimension(mm) | - | Connector Type | FC/PC，Narrow Key（2 mm） | |
| Thread Specification | SM1 External Thread | Material | 304 Stainless Steel | |
| Surface Treatment | Electromagnetic Demagnetization (Note: Weak magnetic force may remain after demagnetization) | |||
LBTEK fiber optic flanges currently include SM1 and SM05 types, which can adapt FC/PC, FC/APC, and SMA connectors to standard SM-series threads. These flanges are suitable for single-mode and multimode fiber couplers as well as other free-space mechanical couplings. They can also be combined with lens tubes for light-tight coupling in SM05 (0.535"-40) or SM1 (1.035"-40) systems. All adapters are made of 304 stainless steel and undergo electromagnetic demagnetization treatment.
The LBTEK SM1-series fiber flanges can be integrated into 30 mm coaxial systems via 30 mm mounting plates or lens tubes. The SM1E external-thread series features light-blocking recessed holes on both sides, allowing installation from either direction using a snap-ring spanner (OWR-1B). The SM1 internal-thread series has a knurled outer edge for hand-tightening convenience.
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