- Part number
- 6GK5991-1AF00-8AA0
- Model no
- SFP991-1LD SCALANCE X accessory; SFP991-1LD; 1x 100 Mbit/s LC port, optical; single- mode optical up to max. 26 km.
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· From Türkiye
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SCALANCE XSiemens 6GK5991-1AF00-8AA0 SCALANCE X SFP991-1LD 100 Mbit/s Single-Mode 26 km SFP Transceiver Module
Siemens SFP991-1LD single-mode SFP, 100 Mbit/s LC port, up to 26 km, -40...+85C
Description
About the SFP991-1LD SCALANCE X accessory; SFP991-1LD; 1x 100 Mbit/s LC port, optical; single- mode optical up to max. 26 km.
About the SFP991-1LD SCALANCE X accessory; SFP991-1LD; 1x 100 Mbit/s LC port, optical; single- mode optical up to max. 26 km.
The Siemens SFP991-1LD (6GK5991-1AF00-8AA0) is a single-mode SFP transceiver module for SCALANCE X Industrial Ethernet switches, providing one 100 Mbit/s optical LC port with a transmission range up to 26 km via the 100BASE-LX method. It runs across a -40 to +85 °C ambient range, matching SCALANCE X switches rated for outdoor cabinets or unconditioned enclosures.
Certifications & Standards
- CE
- C-Tick
- BV
- EPD
Selection Notes
This is the single-mode 100 Mbit/s variant in the SCALANCE X SFP portfolio: pick it over a multi-mode 100 Mbit/s SFP once the run exceeds roughly 2 km, since the 1310 nm single-mode path is rated to 26 km. The -40...+85 °C window lets it sit in the same enclosure as SCALANCE X switches specified for unheated or outdoor cabinets without a separate temperature derating check.
Applications
Extends optical uplinks between SCALANCE X switches in ring or line topologies once copper's roughly 100 m reach is exceeded - linking switch cabinets between buildings, along long conveyor or process lines, or across plant sections on a single-mode fiber backbone.
Specification
Full specification
General 2
| product type designation | SFP991-1LD SCALANCE X accessory; SFP991-1LD; 1x 100 Mbit/s LC port, optical; single- mode optical up to max. 26 km. |
|---|---|
| product brand name | SCALANCE |
Interfaces 11
| number of electrical/optical connections / for network components or terminal equipment / maximum | 1 |
|---|---|
| number of optical interfaces / for network components or terminal equipment / maximum | 1 |
| number of 100 Mbit/s LC ports | 1 |
| design of the optical interface / for network components or terminal equipment | LC |
| wavelength / of the optical interface | 1310 nm; Single-mode |
| connectable optical power relative to 1 mW: of the transmitter output / minimum | -15 dB |
| connectable optical power relative to 1 mW: of the receiver input / maximum | -8 dB |
| optical sensitivity relating to 1 mW / of the receiver input / minimum | -28 dB |
| attenuation factor / of the FOC transmission link / minimum necessary | 0 dB |
| range / at the optical interface / depending on the optical fiber used | 0 ... 26 km |
| transmission method / for connection type 1 | 100BASE-LX |
Ambient conditions 6
| ambient temperature: during operation | -40 ... +85 °C |
|---|---|
| ambient temperature: during storage | -40 ... +85 °C |
| ambient temperature: during transport | -40 ... +85 °C |
| ambient temperature: note | A maximum operating temperature of +85 °C is permissible for a duration of 16 hours |
| relative humidity / at 25 °C / without condensation / during operation / maximum | 95 % |
| protection class IP | IP20 |
Show all 59 specifications ↓ Show less ↑40 more values in Identification, Design, dimensions and weights, Standards, specifications, approvals / Environmental Product Declaration, Logistics.
Identification 10
| Part number | 6GK5991-1AF00-8AA0 |
|---|---|
| Type designation | SFP991-1LD SCALANCE X accessory; SFP991-1LD; 1x 100 Mbit/s LC port, optical; single- mode optical up to max. 26 km. |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4019169207584 |
| ETIM class | EC003628 |
| eCl@ss | 19170302 |
Design, dimensions and weights 18
| design | SFP Module |
|---|---|
| width | 14 mm |
| height | 9 mm |
| depth | 57 mm |
| fastening method | latched |
| standards, specifications, approvals standard: for FM | FM3611: Class 1, Divison 2, Group A, B, C, D / T4, Class 1, Zone 2, Group IIC, T4 |
| standards, specifications, approvals standard: for hazardous zone | EN 60079-0: 2006, EN60079-15: 2005, II 3 G Ex nA II T4, KEMA 07 ATEX 0145 X |
| standards, specifications, approvals standard: for safety / from CSA and UL | UL 62368-1 and CAN/CSA C22.2 No. 62368-1:19 |
| standards, specifications, approvals standard: for emitted interference | EN 61000-6-4:2007 (Class A) |
| standards, specifications, approvals standard: for interference immunity | EN 61000-6-2:2005 |
| certificate of suitability | EN 61000-6-2:2005, EN 61000-6-4:2007 |
| CE marking | Yes |
| C-Tick | Yes |
| KC approval | No |
| CCC / for hazardous zone according to GB standard | Yes; GB3836.1, GB3836.8 |
| CCC / for hazardous zone according to GB standard / as marking | Ex nA IIC T4 Gc |
| Marine classification association: French marine classification society (BV) | Yes |
| MTBF | 490 a |
Standards, specifications, approvals / Environmental Product Declaration 5
| Environmental Product Declaration | Yes |
|---|---|
| global warming potential [CO2 eq]: total | 12.91 kg |
| global warming potential [CO2 eq]: during manufacturing | 1.7 kg |
| global warming potential [CO2 eq]: during operation | 11.2 kg |
| global warming potential [CO2 eq]: after end of life | 0.01 kg |
Logistics 7
| Net weight | 0.034 kg |
|---|---|
| Package dimensions | 100 × 60 × 22 mm |
| Country of origin | Malaysia |
| Shipping weight | 0.534 kg |
| Ships from | Türkiye |
| Dispatch | 9 Nov |
| Stock | Low stock |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
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Ask us for the datasheet
Certifications
Certifications and standards
- CE marking
- C-Tick
- French marine classification society (BV)
- Environmental Product Declaration
Quick answers
Questions about the SFP991-1LD SCALANCE X accessory; SFP991-1LD; 1x 100 Mbit/s LC port, optical; single- mode optical up to max. 26 km.
What is the HS code of SFP991-1LD SCALANCE X accessory; SFP991-1LD; 1x 100 Mbit/s LC port, optical; single- mode optical up to max. 26 km. for customs?
The tariff (HS) code on file for SFP991-1LD SCALANCE X accessory; SFP991-1LD; 1x 100 Mbit/s LC port, optical; single- mode optical up to max. 26 km. is 85176200.
What is the EAN of SFP991-1LD SCALANCE X accessory; SFP991-1LD; 1x 100 Mbit/s LC port, optical; single- mode optical up to max. 26 km.?
The EAN (GTIN) of SFP991-1LD SCALANCE X accessory; SFP991-1LD; 1x 100 Mbit/s LC port, optical; single- mode optical up to max. 26 km. is 4019169207584.
Where does SFP991-1LD SCALANCE X accessory; SFP991-1LD; 1x 100 Mbit/s LC port, optical; single- mode optical up to max. 26 km. ship from, and how fast?
SFP991-1LD SCALANCE X accessory; SFP991-1LD; 1x 100 Mbit/s LC port, optical; single- mode optical up to max. 26 km. ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
Reviews
Customer reviews
Series
Siemens SCALANCE X
- Brand
- Siemens
- Series
- SCALANCE X
