BAT54C-QR

BAT54C-QR is a dual Schottky diode array with a common cathode (BAT54C). It consists of two Schottky diodes in one SOT-23 (three-pin) package, sharing the cathode node and giving two independent anodes. The “-QR” suffix typically indicates Tape & Reel packaging for automatic assembly.
Key points:
- Configuration: two diodes with a common cathode (useful for OR-ing or clamping signals).
- Low forward voltage (typical ~0.2–0.3 V at modest current) and fast switching.
- Per-diode ratings (vendor variants vary): Vr (reverse voltage) ~30 V; If (continuous) on the order of a few hundred milliamps per diode.
- Low leakage and small capacitance, suitable for high-speed, low-voltage logic and protection circuits.
Common applications: logic-level ORing, input protection, rectification in low-voltage circuits, level shifting in digital or RF front-ends.
Note: Check the specific datasheet for exact electrical ratings, package details, and the exact meaning of the QR packaging for your supplier.

BAT54C-QR is a dual Schottky diode pair in SOT-23 with a common cathode. Equivalents are other vendors’ dual Schottky diodes in the same package/pinout. Examples: Vishay BAT54C, Nexperia BAT54C, Diodes Inc. BAT54C (and similar ON Semiconductor variants). Verify exact footprint, rating (≈20 V reverse, ≈0.2 A forward) and QR packaging on the datasheets.

BAT54C-QR features:
- Dual Schottky barrier diodes in a common-cathode pair (BAT54C)
- SOT-23 package; -QR indicates RoHS-compliant Tape & Reel packaging
- VRRM = 30 V; IF(av) ≈ 200 mA per diode
- Very low forward voltage drop (VF typically ~0.2–0.3 V at low currents)
- Fast switching; no reverse recovery (Schottky)
- Low reverse leakage (microamp range at room temp; rises with temperature)
- Suitable for OR-ing, clamping, protection, and level-shifting applications

Pin count: 3 pins.
Function: BAT54C-QR is a dual Schottky diode with a common cathode. Pins: pin 1 = anode A, pin 2 = anode B, pin 3 = common cathode. Used for OR-ing two signals, clamping, or reverse-polarity protection.

Manufacturer: Nexperia. Nexperia is a global semiconductor company specializing in discrete components (diodes, transistors), as well as logic and ESD protection devices; originally part of Philips Semiconductors.

BAT54C-QR is a dual Schottky diode with common cathode (low forward drop, fast switching; ~30 V, ~0.2 A). Typical applications:
- Logic signal steering/OR-ing: two inputs to one output (common cathode configuration).
- Input protection and clamping for microcontrollers/ICs (protects against over/under voltages with fast response).
- Level shifting in TTL/CMOS interfaces.
- Polarity and power-path protection in battery-powered gear; reverse-polarity protection.
- Low-loss rectification in small DC-DC converters and power supplies.
- Fast detector/clipper roles in RF front-ends and envelope detection.

BAT54C-QR is a dual Schottky diode in a SOT-23 (3-pin) package with a common cathode; -QR denotes tape-and-reel packaging.