BAV99QAZ

BAV99QAZ is a dual small-signal, fast-switching diode in a single SOT-23 package. It contains two diodes in one device and is commonly used for high-speed switching, level shifting, clipping, and signal conditioning in compact circuits. The “QAZ” suffix is a supplier/assembly code and typically indicates RoHS Pb-free packaging; always check the specific datasheet for exact pinout and variant details.
Key points:
- Per-diode: fast switching, suitable for digital/analog signals.
- Voltage/current: reverse voltage in the tens of volts range (typical around 70–75 V), forward current up to a few hundred milliamperes, with a forward voltage around 0.6–0.9 V at moderate current.
- Package: three-pin SOT-23; variants exist with common cathode or common anode configurations—verify the exact pinout in the datasheet.
Typical uses: input protection, high-speed logic interfacing, clipping/limiting circuits, and small-signal demodulation.
For precise electrical values and pin configuration, consult the specific manufacturer’s datasheet for BAV99QAZ.

BAV99QAZ features (concise):
- Dual series high-speed switching diodes in a single SOT-23 (3-pin) package
- VR (per diode) about 75 V; IF(AV) ≈ 150 mA
- Very fast switching response (ns-scale)
- Low leakage and low forward voltage drop for small-signal use
- Suitable for clipping, protection, and high-speed logic applications
- Wide operating temperature range (-55°C to +125°C)
- RoHS compliant, Pb-free, halogen-free
- Package: SOT-23, tape & reel (QAZ variant)
Note: electrical specs are typical values; consult the exact datasheet for your lot.

SOT-23 (3-pin) surface-mount package.

- Pin count: 3 pins (SOT-23-3)
- Function: Dual high-speed switching diodes connected in series inside one package (anode of D1 at pin 1, junction at pin 2, cathode of D2 at pin 3). Used for fast signal switching, level shifting, and clipping/protection tasks.

Manufacturer: Nexperia. Nexperia is a global semiconductor company that designs and manufactures discrete components (diodes, transistors, protection devices) and related technologies; it originated from Philips Semiconductors.

BAV99QAZ is a dual fast-switching signal diode. Common applications:
- High-speed switching and digital logic interfaces
- Input clipping, waveform shaping, and level shifting
- AM demodulation/envelope detection
- Small-signal rectification and peak detection
- Protection/clamping in TTL/CMOS circuits

Equivalent parts for BAV99QAZ (dual, high-speed switching diodes in SOT-23) include:
- BAV99 (same family, different vendor)
- BAV99W (alternate packaging)
- MMBD4148 (dual 4148 diodes)
- PMBD4148 (Panasonic variant)
Note: verify pinout and ratings (voltage/current) before substituting.