The 32-TQFN (5x5 mm) with exposed pad is a hand-solderable package if you have hot air and a steady hand; the pad underneath needs a thermal via or a solid ground pour to sink heat. No through-hole version exists, so plan for a stencil or a rework station if you're prototyping.
MAX4999ETJ+T USB 2.0 8:1 Multiplexer, 1.2 GHz, 32-TQFN
MPNMAX4999ETJ+T
End of Life
Maxim Integrated MAX4999ETJ+T, 8:1 analog multiplexer/demultiplexer, 1.2 GHz -3dB bandwidth, 12 Ohm max on-resistance, single 3V to 3.6V supply, USB 2.0, -40°C to 85°C, 32-TQFN (5x5 mm) exposed pad, surface mount.
$7.09Ref. price · indicative, final on quote
Packaging32-WFQFN Exposed Pad
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Voltage - supply, single (V+) | 3V ~ 3.6V |
| Operating temperature | -40°C ~ 85°C (TA) |
| -3db bandwidth | 1.2GHz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Features | USB 2.0 |
| Applications | USB |
| Case | 32-WFQFN Exposed Pad |
| Channels | 1 |
| On-State resistance | 12Ohm |
| Multiplexer (Demultiplexer circuit) | 8:1 |
Product details
Frequently asked questions
Does MAX4999ETJ+T support USB 2.0 high-speed switching?
Yes, the part is explicitly listed with USB 2.0 features and a 1.2 GHz -3dB bandwidth, which is more than sufficient to pass 480 Mbps USB 2.0 high-speed signals with good signal integrity.