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Texas Instruments PCA9518DBT — Discrete Semiconductors
Texas Instruments

PCA9518DBT I²C Buffer, 20-SSOP, 3V–3.6V – Active

MPNPCA9518DBT
End of Life

Texas Instruments PCA9518DBT, I²C Buffer, 20-SSOP (0.209", 5.30mm Width), 3V ~ 3.6V Supply, Surface Mount, Active.

$2.59Ref. price · indicative, final on quote
PCA9518DBT datasheet
Packaging20-SSOP (0.209", 5.30mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

PCA9518DBT Technical Specifications
ParameterValue
Mounting typeSurface Mount
Voltage3V ~ 3.6V
InterfaceI²C
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsBuffer
Case20-SSOP (0.209\", 5.30mm Width)

Product details

I²C bus buffer — what it does and where it fits

The PCA9518DBT is an I²C interface buffer IC. It buffers clock and data lines, operating from a 3V to 3.6V supply rail. Housed in a 20-SSOP package (0.209", 5.30 mm), it is surface-mount.

Supply voltage — the 3.3V rail constraint

The 3V to 3.6V supply window ties this buffer to a 3.3V I²C bus. Verify the bus voltage before committing the line.

Package and mounting — 20-SSOP footprint

The 20-SSOP package (0.209" body width, 5.30 mm) is a standard surface-mount footprint. The supplier device package is also 20-SSOP.

Lifecycle and compliance — active, no LTB risk

The PCA9518DBT carries an Active product status with ROHS3 compliance. There is no last-time-buy notice, no NRND flag, and no announced end-of-life. For a BOM freeze or a multi-year production run, this part does not introduce obsolescence risk. The ROHS3 compliance covers the current EU directive without exemptions.

Frequently asked questions

Is PCA9518DBT obsolete or active?

The PCA9518DBT is Active in production. No end-of-life notice or last-time-buy has been issued. It remains available for new designs and production replenishment.

What is the PCA9518DBT used for?

The PCA9518DBT is an I²C bus buffer. It isolates bus capacitance, extends the physical reach of the I²C bus, and allows more devices on the same segment. Typical applications include buffering the clock and data lines between a master controller and a downstream peripheral bank.