Ethernet Interface Chip products

JL6108 Gigabit Ethernet Switch IC

JL6108 provides eight external gigabit ports with no host uplink, in an LQFP128 package measuring 20 by 14 millimetres. Eight gigabit ports concentrate significant power and board area, so plan the thermal design and panel layout early.

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Filter the JL6108 by data rate, ports, supply voltage, temperature, package and body size.

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JL6108 Gigabit Ethernet Switch IC product selection results
Image	Part number	Datasheet	Compare	Downloads	Series	Data Rate	Ports	Interface Mode	MAC interface voltage	External supply voltage	Copper Port	Optical Port	Temperature	Package	Size	Sample
	JL6108-PC	SPEC	Compare JL6108-PC	PDF	JL6108 series	1G	8	NA	NA	1.1V	10 Base-T	NA	0~70℃	LQFP128	20*14 mm

By port topology

Switch ICs by port count and uplink

Port notation such as 5+1 means five external ports plus one host uplink.

01JL5104 series2 part numbers 02JL5105 series2 part numbers 03JL5106 series2 part numbers 04JL5108 series2 part numbers 05JL5109 series1 part numbers 06JL5110 series1 part numbers 07JL6105 series1 part numbers 08JL6107 series6 part numbers 09JL6108 series1 part numbers 10JL6110 series2 part numbers

Series overview

Laying out a JL6108 Ethernet switch IC

The JL6108 Ethernet switch IC switches eight gigabit copper ports among themselves, with no MAC interface for a host processor. That makes it an 8 port gigabit switch IC for unmanaged desktop and rack switches, in an LQFP128 package and a commercial grade. For uplinks and fiber, compare the JL6110 series; for 100M, the JL5108.

Eight gigabit ports

Each of the eight gigabit copper ports needs gigabit-rated magnetics and an RJ45 jack; see our gigabit Ethernet transformers. No port is set aside for a host.

LQFP128 at 20 × 14 mm

JL6108-PC uses LQFP128 at 20 × 14 mm. The JL6107 uses LQFP128 at 14 × 14 mm, so do not reuse its footprint.

Supply listing

The external supply is listed as 1.1 V. Eight active gigabit ports draw more than a 100M design, so size the regulator from the datasheet power figures.

Commercial grade

JL6108-PC is rated 0 to 70 °C for offices, homes and equipment rooms. An eight-port gigabit design for −40 to +85 °C points to the industrial grade of the JL6110 series.

Open the Ethernet Switch ICs selection guide →

Applications

JL6108 Ethernet switch IC applications

It fits products that need many gigabit ports and no processor on the network.

Office

Eight-port gigabit switches

As an 8 port gigabit switch chip, it suits home and small office switches that link the router with PCs, NAS units, printers and access points.

Labs

Racks and test benches

Lab racks and production test benches can fan one gigabit link out to instruments or units under test through an internal switch board.

Security

Recorder cabinets

A recorder cabinet can join gigabit cameras, the recorder and the site uplink on one switch board within its 0 to 70 °C rating.

Documents

Get the JL6108 Ethernet switch IC datasheet

Search JL6108-PC for its datasheet, then check the LQFP128 drawing, 1.1 V supply and port circuit before layout.

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Showing representative available file sets. Search to find a specific SKU.

JL6108-PCJL6108 series

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0: PCB footprints listed

VOOHU’s published product content is reviewed by its engineering team. Specifications, downloads and technical support information are tied to specific part numbers, so you can verify them before requesting samples or a quotation.

Sourcing

Buying JL6108 Ethernet switch ICs from VOOHU

Through VOOHU, an authorized JLSemi distributor, JL6108-PC can be quoted and sampled; its datasheet (PDF) covers pinout, supply and the 20 × 14 mm LQFP128 package.

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Contact FAE for a replacement assessment.

Already have a part number? Request samples or a quote.

Samples and quotes

Samples are available for evaluation, and selected parts are free of charge. Our FAE team will be glad to confirm the options for your project. For a quotation, tell us the quantity and target build, and we will confirm availability.

Alternative to an existing chip

When an eight-port gigabit design needs an alternative switch IC, send its part number and datasheet. Our FAE team reviews register and layout differences and points to candidates you can validate with samples before production.

Company

VOOHU is ISO 9001 and ISO 14001 certified. Since 2018 VOOHU has supplied more than 1,500 customers, including 150+ listed companies. Our FAE team also reviews eight-port layouts.

FAQ

JL6108 Ethernet switch IC: your questions

Sourcing, design files and the 100M alternative.

Guide 01Selecting an Ethernet switch IC in four steps Guide 02Where these switch ICs are used Guide 03Switch IC datasheets and reference designs

What is an eight port gigabit device with no uplink for?

Products with a dense front panel where the host controller plays no part in forwarding. It keeps the design free of uplink routing. If the product needs management, remote access or host traffic, compare the JL6110 which adds two uplinks and fibre support.

How much board area should I allow?

Considerably more than the 20 by 14 millimetre package. Each of the eight gigabit ports needs magnetics and a controlled impedance differential pair to its connector. Plan the port area, the magnetics placement and the panel arrangement before you place the device.

What about cooling?

Eight gigabit ports in one package concentrate significant power. Follow the datasheet thermal pad requirements, provide generous copper and via stitching, and plan airflow in the enclosure. Measure the case temperature at full load at the highest rated ambient rather than relying on the rating alone.

How does it compare with JL6110?

Both provide eight external gigabit ports. JL6108 has no uplink and comes in LQFP128 at 20 by 14 millimetres. JL6110 adds two uplinks and 1000Base-X fibre support in a larger TQFP176 at 20 by 20. Decide on uplinks and fibre first.

How do I request samples or a quote?

With a complete part number, send the part number, quantity, delivery region and the date you need it. If you are still selecting, send the external port count and confirm whether the host needs to be on the network.

Who distributes the JL6108 Ethernet switch IC?

VOOHU does, as an authorized JLSemi distributor, and quotes JL6108-PC for prototype and production orders. Our FAE team can review the eight port circuits and the power design.

Is a 3D model available for the JL6108?

The selector offers the datasheet (PDF) and no 3D model, so model the LQFP128 body and 20 × 14 mm outline from its package drawing.

JL6108 or JL5108 for an eight-port switch?

The JL6108 runs eight gigabit ports in LQFP128 at 20 × 14 mm, listed at 0 to 70 °C. The JL5108 runs 100M in QFN64 at 9 × 9 mm, with commercial and industrial grades.

Engineer support

JL6108 Ethernet switch IC samples and layout review

Send the candidate part number and the condition you need reviewed. Sample support can be added after the selection is clear; commercial questions may be discussed in the same engineering conversation.

1Selected part numbers
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4Commercial discussion

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Engineering review identifies candidate parts and explains the differences.

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Samples are free of charge. Sample quantity and lead time depend on the part number and project stage. Sales will respond on business days.

Related guides and reviews Multi-port network port design for PoE switches Switch board power: molded inductor selection View all alternatives

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