ST/PC Connector SM
ST/PC Connector SM is part of the fiber optic connector range built by Ever Expresslink Limited in Ningbo, China. It is built on the ST (Straight Tip) interface.
Connector bodies and kits for assembly houses and field termination
Interested in ST/PC Connector SM
Email the model and quantity with your destination country. We reply with pricing, lead time and a datasheet.
Product Overview
ST/PC Connector SM is part of the fiber optic connector range built by Ever Expresslink Limited in Ningbo, China. It is built on the ST (Straight Tip) interface.
ST fiber optic connectors and related ST fiber products are widely used in today’s telecommunication filed including both long haul and local network applications. ST is one of the fiber connectors that dominate the market today.
ST fiber connector is with twist-lock bayonet coupling, its 2.5mm keyed ferrule meet the durability and repeatability requirement for the fiber optic links. Typical ST fiber optic connector use metal housing, but plastic housed ST connectors are also used sometimes. ST connectors are generally three types: single mode ST UPC fiber optic connector, single mode ST APC fiber optic connector, multimode ST UPC fiber optic connector. We supply a wide range of the ST fiber optic connectors and ST fiber cable products; they are strictly tested during the production and feature the good price and excellent quality. Our ST fiber connectors and related products follow the IEC 61 754-2 standards.
It remains common in installed multimode building backbones and in industrial or campus networks that were cabled before SC and LC took over. The bayonet pin has to clear the slot fully. A partially rotated ST looks seated but sits off the reference plane and reads high loss.
Single-mode fiber carries one propagation mode in a 9 µm core, so pulse spreading stays low and the link budget is set by loss rather than dispersion. Use it for access, metro and long-haul spans, for PON distribution and for anything that has to survive a future speed upgrade.
PC is the baseline physical-contact polish, with a lighter dome than UPC. It appears on older plant and on multimode links where return loss is not the limiting factor.
Key Benefits
- Supplied as ST/PC Connector SM, so the part you receive matches the designation you ordered against
- PC end face: It appears on older plant and on multimode links where return loss is not the limiting factor.
- Single Mode at 9/125 µm: Use it for access, metro and long-haul spans, for PON distribution and for anything that has to survive a future speed upgrade.
- Bulk packing suited to production rather than single repairs
- Compatible with standard epoxy and polish workflows
- Consistent ferrule bore and geometry so polish recipes stay stable
Problems It Solves
- Housings that do not seat consistently in a given adapter brand
- Spring force drift that changes physical contact under the same mating load
- Sourcing separate parts for each connector type from separate suppliers
- Repair benches held up waiting for a single component type
Application Scenarios
- Campus and industrial LAN risers
- Practice terminations in a fiber training program
- Building custom assemblies for a one-off project
- Producing patch cords and pigtails on an assembly line
- Re-terminating damaged cords on a repair bench
Who It Is For
- OEM equipment makers integrating optical interfaces
- Repair and refurbishment benches
- Training centers and technical schools
- Distributors supplying assembly consumables
Technical Features
- ST (Straight Tip) interface
- The bayonet pin has to clear the slot fully. A partially rotated ST looks seated but sits off the reference plane and reads high loss.
- Single Mode fiber at 9/125 µm
- Single-mode and multimode ferrule bore options
- Zirconia ceramic ferrule with controlled bore diameter
- Spring-loaded ferrule assembly for stable physical contact
- Crimp sleeve and strain-relief boot supplied with the body
Materials
- Zirconia ceramic ferrule
- Copper alloy crimp sleeve
- Stainless or copper alloy body hardware
- Thermoplastic housing and boot
- Stainless compression spring
Specifications
| Product Designation | ST/PC CONNECTOR SM |
|---|---|
| Product Family | Fiber Optic Connector |
| Connector Interface | ST (Straight Tip) |
| End Face Polish | PC |
| Fiber Mode | Single Mode (9/125 µm) |
| Referenced Standards | IEC 61 754-2 |
| Manufactured In | Ningbo, China |
| Warranty | One year against defects in materials and workmanship |
Values shown are those carried by the product designation. Dimensional and optical values for a specific order are confirmed on the quotation.
Manufacturing Process
- Ferrule bore inspection on incoming ceramic
- Housing and hardware assembly
- Spring force setting and verification
- Dimensional check against the connector standard
- Kit packing with crimp sleeve and boot
Quality Control
- Ferrule bore diameter sampled from each ceramic lot
- Housing dimensional checks against the applicable standard
- Spring force verified on sample units
- Trial termination and polish from each production lot
- Packing count and kit completeness verified before dispatch
Customization Options
- Single-mode or multimode ferrule bore
- Ferrule length and boot style
- Bulk or kitted packing
- Private-label packaging for distributors
- Matched sets with the corresponding adapters
Compared With Other Options
| SC | SC pushes straight in; ST needs a twist but is quick once the technique is habitual |
|---|---|
| FC | Both use a 2.5 mm ferrule; FC screws down for vibration, ST trades that for speed |
| APC version | APC adds an eight degree angle so reflections leave the core, which matters on PON, CATV and RF-over-glass paths. It is not interchangeable with this part. |
| Multimode version | Multimode is cheaper to drive over short in-building distances but cannot carry the reach or the upgrade headroom of single mode. |
Handling ST/PC Connector SM
Before You Order
- Match ferrule bore to the fiber you are terminating
- Follow the epoxy manufacturer's mix ratio and cure schedule
- Polish in stages, inspecting the end face between stages
In Service
- Verify geometry on an interferometer before the assembly is released
- Measure insertion loss and return loss on the finished assembly
- Store unused bodies capped and dry
Questions About ST/PC Connector SM
What do you need from us to quote ST/PC Connector SM?
The quantity, the destination and anything that has to match on your side: connector and polish at each end, fiber mode and core size, and length where the item is an assembly. If you are matching a part you already buy, send the sample and we will quote against it.
Can ST/PC Connector SM be supplied with a different connector interface?
Yes. ST (Straight Tip) is what this designation carries, and the same family is stocked across the other mainstream connector standards. Tell us the port you have to mate with and we will confirm the equivalent part.
Is ST/PC Connector SM available in the other fiber mode?
This item is single mode. Single-mode alignment tolerance is tight. End-face cleanliness matters more here than on any multimode link. The corresponding version in the other fiber mode is available; confirm the installed plant at both ends before ordering.
Are the housings compatible with other brands of adapter?
The housings are built to the published dimensions of each connector standard, so they mate with standard-compliant adapters. If you are matching a specific installed adapter, send us the part and we will confirm before you commit to volume.
What polishing film do you recommend?
We supply polishing film alongside the connectors so the consumables come from one order. Grit sequence depends on your ferrule and polish target, which we can advise on for your process.
More Fiber Optic Connector
SC/PC Connector MM
SC fiber products are commonly seen and SC fiber optic connectors are found on many equipment and cable assemblies.
View Details
SC/PC Connector SM
SC fiber products are commonly seen and SC fiber optic connectors are found on many equipment and cable assemblies.
View Details
ST/PC Connector MM
ST fiber optic connectors and related ST fiber products are widely used in today’s telecommunication filed including both long haul and local network applications.
View Details
FC Connector MM
FC fiber products and FC fiber optic connectors are widely used on the equipment and cable assemblies, especially on the test equipment interface.
View DetailsGuides Cases and Industries
What a Hybrid Fiber Adapter Does and When to Use One
Joining two different connector standards without cutting anything, and the three things that still have to match.
Buying GuideHow to Choose a Fiber Optic Connector Type
FC SC LC ST MU MT-RJ and E2000 compared by what actually decides the choice: the port you have to mate with the space you have and how often it gets touched.
Material GuideSingle Mode and Multimode Fiber Compared
Core sizes, where each one earns its place, and the mixing mistake that quietly costs several decibels in the middle of a channel.
IndustryTest Measurement and OEM Integration
Component-level supply for instrument builders and cable assembly houses
IndustryIndustrial and Medical Optical Links
Fiber links in environments where electrical noise, isolation or geometry rules out copper
Request Pricing For ST/PC Connector SM
Tell us the quantity and destination. If you are matching a part you already buy, send the sample and we will quote against it.