BAT54A-QR

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BAT54A-QR

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規格

Supplier Nexperia USA Inc.
Package Bulk
Series Automotive, AEC-Q101
ProductStatus Active
DiodeConfiguration 1 Pair Common Anode
DiodeType Schottky
Voltage-DCReverse(Vr)(Max) 30 V
Current-AverageRectified(Io)(perDiode) 200mA (DC)
Voltage-Forward(Vf)(Max)@If 800 mV @ 100 mA
Speed Small Signal =< 200mA (Io), Any Speed
ReverseRecoveryTime(trr) 5 ns
Current-ReverseLeakage@Vr 2 µA @ 25 V
OperatingTemperature-Junction 150°C
MountingType Surface Mount
Package/Case TO-236-3, SC-59, SOT-23-3

概述

Description

BAT54A-QR is a dual Schottky diode pair in one SOT-23 package with a common anode (the “A” in BAT54A). The “QR” suffix denotes a specific package/marking variant (lead-free/RoHS, typical reel packaging used by distributors).
Key features
- Configuration: two Schottky diodes with shared anode; individual cathodes.
- Typical electrical: VRRM ≈ 30 V; IF(AV) ≈ 200 mA per diode; VF about 0.2–0.35 V at modest forward current.
- Fast switching; low forward voltage drop enables low-loss OR-ing, polarity protection, and clamping in low-voltage circuits.
- Package: compact SOT-23 (3 pins), suitable for surface-mount designs; RoHS-compliant.
Common applications
- Power-path OR-ing and source switching
- Reverse-polarity and protection diodes
- Level shifting and clamping in low-voltage logic
Tip: Always check the specific datasheet for the exact “QR” lot/measured parameters and any package/reel differences for your supplier.

Features

Key features of BAT54A-QR (dual Schottky diodes, common anode):
- Configuration: dual Schottky diodes with a common anode (BAT54A).
- Blocking voltage: about 30 V per diode.
- Forward current: typical I_F(AV) around 200 mA per diode.
- Low forward drop: V_F ≈ 0.2–0.5 V across operating currents (Schottky behavior).
- Fast switching: very short recovery with no stored charge.
- Low leakage: reverse leakage current on the order of microamps at room temp (rises with temperature).
- Package: SOT-23, RoHS-compliant; -QR indicates Tape-and-Reel packaging.
- Applications: high-speed rectification, OR-ing, clamping, and protection in compact power/logic circuits.

Package

BAT54A-QR uses a SOT-23 (3-pin) package, shipped in Tape & Reel (QR) packaging.

Pinout

Pin count: 3 pins (SOT-23 package).
Function: Dual Schottky diode array with a common anode. Pin 1 is the common anode; Pins 2 and 3 are the two cathodes. Used for diode-ORing, level shifting, and fast, low-forward-voltage protection.

Manufacturer

- Manufacturer: Nexperia.
- What kind of company: A global semiconductor company (Dutch-based) that designs and manufactures discrete components such as diodes, transistors, protection devices, and related electronics components.

Application

BAT54A-QR is a dual Schottky diode (common-anode) in a compact package. Typical applications:
- Fast, low-loss switching and low-current rectification
- Diode-logic and signal routing (OR/AND in low-voltage circuits)
- Input/output protection, clamping, and reverse-polarity protection for MCUs and sensors
- Level shifting and protection in 3.3–5 V logic and power rails
- RF/analog front-end protection and demodulation in small-signal circuits

Equivalent

BAT54A-QR is a dual Schottky diode. Equivalent parts include the BAT54A from Vishay, Nexperia, ON Semiconductor or Diodes Inc., and functionally similar SOT‑23 dual Schottky variants (BAT54S, BAT54C). Verify pin‑out, Vf, IR and package before substituting.

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