The Finisar FTLF8536P4BCL is a 25GBASE-SR SFP28 short-wave optical transceiver widely specified for data center and enterprise links up to 100 m over OM4 multimode fiber. For our wholesale customers — resellers, system integrators and IT procurement teams — this is a high-turnover SKU for 10G-to-25G Ethernet migration projects, server, storage and top-of-rack switch deployments where existing duplex LC multimode cabling is reused. Reach figures depend on fiber grade, so we recommend confirming the OM3/OM4 plant of the end customer before placing bulk orders.
Key specifications (table)
| Parameter | Specification |
| Part Number | FTLF8536P4BCL |
| Manufacturer | Finisar (now Coherent) |
| Form Factor | SFP28 (backward-compatible with SFP+ cages, platform dependent) |
| Data Rate | Up to 25.78 Gbps |
| Ethernet Standard | 25GBASE-SR |
| Wavelength | 850 nm (short-wave VCSEL window) |
| Fiber Type | Multimode Fiber (MMF) |
| Connector Type | Duplex LC |
| Transmitter Type | Oxide VCSEL Laser |
| Receiver Type | PIN Photodiode |
| Maximum Distance (OM4) | 100 m |
| Maximum Distance (OM3) | 70 m |
| Maximum Distance (OM2) | 20 m |
| Power Supply | 3.3 V |
| Maximum Power Consumption | 1.2 W |
| Digital Diagnostics | DDM/DOM Supported (via I2C per SFF-8472) |
| Hot-Pluggable | Yes |
| Operating Temperature | 0°C to +70°C (commercial range; typical data center ambient) |
| EMI Protection | Metal Enclosure, Low EMI |
| Standards Compliance | IEEE 802.3by, SFF-8402, SFF-8472 (MSA-aligned, multi-vendor interoperability) |
| Environmental Compliance | RoHS Compliant |
Supply & Sourcing Information for B2B Buyers
We stock the FTLF8536P4BCL in volume, with inventory refreshed on a rolling basis to support ongoing project roll-outs and repeated order cycles. Units are supplied in consistent, single-batch lots wherever possible, so integrators deploying across multiple racks or sites can rely on uniform firmware revision and labeling. Date codes and batch numbers can be provided on request prior to shipment for large orders.
All modules are shipped with a standard warranty covering manufacturing defects, supported by a structured RMA process: failed units reported within the warranty period are issued an RMA number, tested on receipt, and replaced or credited per the agreed terms. Our support team coordinates directly with resellers’ technical staff to speed up fault verification and minimize project downtime.
Shipments are export-ready: products are RoHS compliant and CE/FCC documentation can be supplied for customs and compliance filings in destination markets. Typical dispatch for in-stock quantities is within 1–3 business days; larger or scheduled orders can be allocated against a confirmed PO with staggered deliveries. If your switch vendor enforces coded-module whitelists, confirm compatibility before committing volumes — MSA alignment (IEEE 802.3by, SFF-8402/8472) generally permits third-party use, and DDM/DOM monitoring helps validate link health after installation.
For resellers and system integrators planning 25G upgrades, this SKU sits in the cost-sensitive short-reach multimode tier of the Finisar (Coherent) SFP28 family, making it well suited to bid pricing and multi-site deployments. To check current stock levels, batch availability and volume pricing, request a wholesale quote from our sales desk.
Wholesale & Procurement Notes
- MOQ negotiable — flexible minimum order quantities for trial orders and framework supply agreements.
- Tiered volume pricing available — request a quote for project-scale quantities.
- Typical lead time: 1–3 business days for in-stock items; scheduled deliveries available for large POs.
- Packing & shipping options: anti-static bulk trays or retail-boxed units; DHL/FedEx/UPS express or consolidated air/sea freight.
- RMA window: standard warranty with RMA acceptance within the agreed period from delivery; replacement or credit issued after verified testing.
