Quick Specs
| Category | Fiber Optic Adaptor, Simplex (SC) and Duplex (LC) |
| Polish types | PC, UPC, APC |
| Fiber mode | Single-mode (SM) and multi-mode (MM) |
| Insertion loss | ≤ 0.2dB (SM) / ≤ 0.1dB (MM) |
| Compliance | ISO/IEC 11801:2008 ANSI/TIA/EIA 568-C.3 |
The Heizka optical fiber adaptor is the precision coupling sleeve that joins two fiber connectors of the same type end-to-end, keeping the fiber cores aligned so light passes through the mated pair with minimal loss. Every optical fiber adaptor in this range uses a ceramic split sleeve to hold the ferrules on-axis, so patch panels, splice trays and rack-mount enclosures can be built up from a common, interchangeable coupling part.
The line covers both simplex adaptors, built around the SC connector footprint, and duplex adaptors, built around the LC connector footprint, each available in PC, UPC and APC polish to match the connector polish already terminated on the fiber, and in single-mode or multi-mode fiber versions. A zinc-alloy body is used for metal-flange variants while a PC plastic housing is used for the SC/LC plastic-flange variants, so the same optical fiber adaptor family can be specified across fiber patch panels, wall boxes and distribution frames without mixing incompatible parts.
Features
- ✓Compatible, repeatable and interchangeable coupling between matching connectors
- ✓High-precision ceramic split sleeve for accurate ferrule alignment
- ✓Good mechanical and optical stability over repeated matings
- ✓Low insertion loss and high return loss
- ✓Simplex (SC) and duplex (LC) versions in a shared numbering scheme
- ✓PC, UPC and APC polish options for single-mode and multi-mode fiber
- ✓Rated for 500 or more mating cycles
Standard Compliance
ISO/IEC 11801:2008 ANSI/TIA/EIA 568-C.3 IEC 61754
Coupling geometry and optical performance follow the connector-family requirements of ISO/IEC 11801:2008, ANSI/TIA/EIA 568-C.3 and the IEC 61754 fiber optic connector interface series.
Ordering Information
Each item number encodes category, connector type, polish and fiber mode: for example HEA-AS-1-P-1 reads as Heizka Accessories, Adaptor Simplex, connector code 1 (SC), polish code P (PC), fiber code 1 (MM). The confirmed, currently listed SKUs are:
| Item # | Description |
|---|---|
| HEAAS1P1 | SC/PC MM simplex adaptor |
| HEAAS1P0 | SC/PC SM simplex adaptor |
| HEAAD2P1 | LC/PC MM duplex adaptor |
| HEAAD2P0 | LC/PC SM duplex adaptor |
| HEAAS1U1 | SC/UPC MM simplex adaptor |
| HEAAS1U0 | SC/UPC SM simplex adaptor |
| HEAAD2U1 | LC/UPC MM duplex adaptor |
| HEAAD2U0 | LC/UPC SM duplex adaptor |
| HEAAS1A1 | SC/APC MM simplex adaptor |
| HEAAS1A0 | SC/APC SM simplex adaptor |
| HEAAD2A1 | LC/APC MM duplex adaptor |
| HEAAD2A0 | LC/APC SM duplex adaptor |
Technical Specifications
Construction & Materials
| Adaptor material | Ceramic split sleeve |
| Outer cover material | Zinc alloy (FC, ST) or PC plastic (LC, SC) |
| Work/storage temperature | -40°C ~ 80°C (metal-flange types) / -25°C ~ 70°C (plastic-flange types) |
| Mechanical durability | ≥ 500 mating cycles |
Optical Performance
Physical Performance
Simplex (SC) vs Duplex (LC) Adaptor — Which Configuration Do You Need?
| Feature | Simplex Adaptor (SC-based) | Duplex Adaptor (LC-based) |
|---|---|---|
| Connector housed | SC | LC |
| Fiber path per adaptor | Single fiber | Two fibers (transmit/receive pair) |
| Polish options | PC, UPC, APC | PC, UPC, APC |
| Fiber mode | SM or MM | SM or MM |
| Best for | Patch panels and enclosures standardised on SC connectors | High-density patch panels and enclosures standardised on LC connectors |
Frequently Asked Questions
An optical fiber adaptor is a coupling sleeve, usually a ceramic split sleeve inside a metal or plastic housing, that aligns and joins two fiber connectors of the same type so light continues through the mated pair with minimal insertion loss.
The simplex adaptor is built around the SC connector footprint and couples a single fiber, while the duplex adaptor is built around the LC connector footprint and couples a transmit/receive fiber pair in one housing.
PC, UPC and APC describe the ferrule end-face polish of the connectors the adaptor is designed to mate. The adaptor’s polish code must match the polish already terminated on the fiber connectors it will join, so an APC adaptor is used with APC-terminated patch cords and pigtails.
No. Single-mode and multi-mode versions are separate SKUs, distinguished by the trailing fiber-mode code, because the two modes call for different insertion-loss targets and are usually colour-coded to avoid mixing SM and MM links by mistake.
Reading left to right after the HEA prefix: adaptor category (simplex or duplex), connector code, polish code, then fiber-mode code, matching the same coding key shown above so the correct part can be re-ordered from the label alone.
Packaging & Delivery
Each Heizka optical fiber adaptor is packed by SKU with the connector type, polish and fiber mode clearly marked on the label, so the correct simplex or duplex part can be picked, verified and re-ordered without opening the pack. Bulk carton counts are available for patch-panel and enclosure roll-outs.
Heizka Cable — Designed in the USA, distributed in 20+ countries worldwide.
