SwitchBlox Nano – 1 Inch Ethernet Switch

Need an NDAA Compliant version? Check out SwitchBlox Nano NDAA.

SwitchBlox Nano is the smallest ethernet switch currently available, with three 10/100MB ethernet ports in the size of a quarter coin.

With an overall size of 25.5mm (1 inch) by 25.5mm (1 inch), SwitchBlox Nano is designed for truly space-constrained applications that need compact, robust ethernet connectivity.

SwitchBlox Nano runs from a wide input voltage of 5 to 45V and outputs an auxiliary 5V, 1A output. These features make SwitchBlox Nano ideal limited internal volumes.

Plug and play network switch

As an unmanaged network switch it works straight out the box, all you need to do is...

1. Apply a 5 to 45V DC supply.
2. Connect your devices using the included cable set.
3. It will automatically begin forwarding packets, no coding or setup is needed.

Dimensions

By utilising surface mount transformers, and a dense layout we've squeezed three ethernet ports into a 1x1 inch square. SwitchBlox Nano boards are fully tested to perform data rates of up 100MB/s.

Cables

We use Molex Picoblade connectors on all our boards to keep them tiny. All boards ship with a cable set included, which consists of...

3 x PicoBlade to RJ-45 300mm (SKU: BB-PBRJ1-4-0.3)

1 x PicoBlade to bare wires 300mm (SKU: BB-PBTL1-4-0.3)

Ethernet Pinout

SwitchBlox Nano has a microcontroller onboard, allowing basic switch management functions such as VLAN (port and tag based) and Port Mirroring.

This allows the creation of a very small traffic sniffer or VLAN tag stripper. 

To configure this, read our software guide or get in touch for support. 

SwitchBlox Nano Harwin 1.27mm (Board Mount) Variant

We offer a board-mountable version of SwitchBlox Nano that uses board-mount connectors for direct mounting onto a PCB. This board uses Harwin M50-3530442 connectors instead of the standard Molex PicoBlade connectors. The DXF profile and 3D model of this part can be found in the links below. Documentation for this board mount version is below.

CAD Files

SWITCHBLOX NANO HARWIN CONNECTOR VARIANT (BB-SWN-C-1-HW) 3D CAD

SWITCHBLOX NANO HARWIN CONNECTOR VARIANT (BB-SWN-C-1-HW) Dimensional Drawing (PDF)

SWITCHBLOX NANO HARWIN CONNECTOR VARIANT (BB-SWN-C-1-HW) Dimensional Drawing (DXF)

SWITCHBLOX NANO HARWIN CONNECTOR VARIANT (BB-SWN-C-1-HW) Footprint (DXF)

SWITCHBLOX NANO HARWIN CONNECTOR VARIANT (BB-SWN-C-1-HW) Mating Keepout Drawing (PDF)

SWITCHBLOX NANO HARWIN CONNECTOR VARIANT (BB-SWN-C-1-HW) Mating Keepout Drawing (DXF)

SWITCHBLOX NANO HARWIN CONNECTOR VARIANT (BB-SWN-C-1-HW) ECAD SYMBOL AND FOOTPRINT

BB-AN-0005 - GUIDELINES FOR CONNECTING SWITCHBLOX NANO HARWIN CONNECTOR VARIANT TO A RJ-45 JACK

Connectors

Connectors on BB-SWN-C-1-HW
Connectors used on BB-SWN-C-1-HW: M50-3530442

Associated mating connector options
Through hole mating connector: M50-3030442
Surface mount 3.6mm mating connector: M50-3140445
Surface mount 2.1mm mating connector: M50-3130445

Covered under the BotBlox Supply Guarantee Program

This board is covered by our supply guarantee, which guarantees availability and low lead times until at least 2028. Read more about the BotBlox Supply Guarantee Program.

Custom Cables

All our boards are shipped with the required 0.3 meter power and data cables included, so you do not need to purchase extra cables. However if you need custom cable lengths for your application, you can order those here. 

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Cool Components (UK distributor):

https://coolcomponents.co.uk/products/switchblox-nano?_pos=1&_sid=152ed188c&_ss=r

Digi-Key (International distributor):

https://www.digikey.com/short/21z72tr5

Hexadrone (EU distributor):

https://www.hexadrone.fr/en/electronique-divers/3407-switchblox-nano-ethernet-botblox.html

Input Voltage Range	5-45V
Power Consumption	220mW (idle) to 400mW (full switching)
Output Voltage	5V, 1A (5V Test Results)
Ports	3 x 10/100Mb ports
Operating Temperature	-10 to +80°C
Storage Temperature	-40 to +85°C
Dimensions	25.5mm x 25.5mm x 7.23mm
HS Tariff Code	8517.62.00.20
US ECCN	5A991
Product Status and Lifetime	Active, with a 5-Year Minimum Lifetime