Texas Instruments 74CB series Bus Switch, SN74CB3T1G125DCKR, 1 x 1:1 circuit, 2.3V ~ 3.6V single supply, -40°C ~ 85°C, SC-70-5, ROHS3 compliant, Active.
| Parameter | Value |
|---|---|
| Type | Bus Switch |
| Series | 74CB |
| Mounting | Surface Mount |
| Supply voltage | 2.3V ~ 3.6V |
| Voltage supply source | Single Supply |
| Operating temperature | -40°C ~ 85°C |
| Circuit | 1 x 1:1 |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 5-TSSOP, SC-70-5, SOT-353 |
| Independent circuits | 1 |
The SN74CB3T1G125DCKR: Housed in a 5-pin SC-70-5 (also known as SOT-353), the same footprint as the standard SOT-23 but with a narrower 1.25 mm body width — useful when routing traces under the part on a dense board.
ROHS3 compliant, so it clears EU and UKCA regulatory gates without exemption paperwork.
It's a single-bit bus switch — one digital signal line connects through when the enable pin is active, isolating the bus when disabled. Common in hot-swap interfaces, signal muxing, or connecting/disconnecting a peripheral from a shared I2C or SPI bus without loading the line.