Pros and Cons of SFP+ Fiber Optic Transceiver Thermal and EMI

The SFP+ was introduced to expand the capabilities of the SFP product family. The new small form-factor pluggable (SFP) provides interconnects up to 10 Gb/s. It is compatible with the SFF (Small Form-Factor) specification, which supports 8G Fiber Channel and 10G Ethernet applications. If you want to know more about these useful products, let’s take a look at the pros and cons and determine if they will work for your application.

SFP+ Fiber Optic Transceiver Thermal and EMI Pros and Cons
Advantages
SFP+ Interconnect System Supports Data Rates Up to 10 Gb/s
SFP+ interconnect system will support faster data rates than SFP interconnect systems. This is one of the major benefits of SFP+. Most people are pleased with the performance of the device at these speeds.

SFP+ is Backwards Compatible with SFP
If you still have some solutions with SFP, SFP+ is backwards compatible and will work with this device.

16G SPF+ Support Data Rates up to 16 Gb/s
There are faster SPF+ devices on the market. In fact, one of the SPF+ devices supports data rates up to 16 Gb/s. This is a welcome addition to those who need faster data transmission than the traditional SPF+ supports.

Heat Sink is Optional for Single Port Cages
Though heat dissipation is a primary concern of SFP+ devices, it is optional for single port cages. This is an added benefit for people considering these devices.

Cages Will Accommodate Belly-to-Belly Mounting
The cages for SFP+ will support belly-to-belly mounting.

Cages are Available for PCI Card Applications
There are cages available for PCI card applications.

Both EMI Spring and Gasket Options for Cages Provide Excellent Shielding
Both EMI spring and gasket options for cages provide excellent shielding for SFP+ devices. This is a major advantage of this particular device.

Can Be Used for a Variety of Applications
These devices can be used for a variety of applications including storage, servers, networking, switches, routers, network interface cards (NICs), and hubs.

Disadvantages
Devices Known For Emitting Excessive Heat
The heat and EMI emissions are some of the biggest problems associated with these devices, but there are safeguards integrated to prevent this problem from occurring.

SFP+ Modules Can Be Outshined by Other Solutions
There are some more powerful solutions on the market for transceivers. These solutions range from 1.25 to 1.5 watts for each port. The traditional SFP+ modules can be used in long-reach applications and short-reach applications of 1 watt or less.

Requires a Robust Connector to Withstand the Heat
A robust connector is required to withstand the significant heat temperatures. Even with heat sinks and a robust connector, the device cannot withstand temperatures above 70 degrees Celsius. Newer versions of the SFP+ have made it possible to withstand more pressure on the device.

The pros of using SFP+ devices outweigh the cons, but it’s important to know the limitations of the device before making a purchase. Review the limitations and test it with your application to determine if it will work for you. You’ll be surprised at how powerful the SFP+ application really is when it’s applied properly.

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