規格
| 屬性 | 價值 |
| Supplier | Nexperia USA Inc. |
| Package / Case | Bulk |
| Series | Automotive, AEC-Q101 |
| Part Status | Active |
| Diode Configuration | 1 Pair Series Connection |
| Diode Type | Schottky |
| Voltage - DC Reverse (Vr) (Max) | 30 V |
| Current - Average Rectified(Io)(per Diode) | 200mA (DC) |
| Voltage - Forward (Vf) (Max) @ If | 800 mV @ 100 mA |
| Speed | Small Signal =< 200mA (Io), Any Speed |
| Reverse Recovery Time (trr) | 5 ns |
| Current - Reverse Leakage @ Vr | 2 µA @ 25 V |
| Operating Temperature - Junction | 150°C |
| Mounting Type | Surface Mount |
概述
Description
BAT54S-QR is a dual Schottky barrier diode in a SOT-23 package with a common-cathode configuration (two anodes, one shared cathode). It combines fast switching with a very low forward-voltage drop, making it ideal for high-speed, low-loss switching and protection circuits.
Key specs (typical):
- Reverse voltage (VR): 30 V
- Average forward current (IF(AV)): ~0.2 A (200 mA)
- Forward voltage (VF): ≈0.25–0.4 V at moderate current; rises with current
- Low leakage and no substantial reverse-recovery charge (Schottky behavior)
-QR suffix: indicates tape-and-reel packaging for automated assembly and RoHS-compliant lead-free construction.
Common uses:
- Diode-ORing and rail switching
- Input protection and clamping
- Small-signal/high-speed switching in compact electronics
Note: check the specific manufacturer’s datasheet for exact parameters, as values may vary slightly by vendor.
Key specs (typical):
- Reverse voltage (VR): 30 V
- Average forward current (IF(AV)): ~0.2 A (200 mA)
- Forward voltage (VF): ≈0.25–0.4 V at moderate current; rises with current
- Low leakage and no substantial reverse-recovery charge (Schottky behavior)
-QR suffix: indicates tape-and-reel packaging for automated assembly and RoHS-compliant lead-free construction.
Common uses:
- Diode-ORing and rail switching
- Input protection and clamping
- Small-signal/high-speed switching in compact electronics
Note: check the specific manufacturer’s datasheet for exact parameters, as values may vary slightly by vendor.
Equivalent
BAT54S-QR is a dual Schottky diode (common cathode) in SOT-23. Equivalents are other dual-Schottky diodes with the same package and similar ratings (around 30 V, 0.2–0.5 A). Representative cross-refs include Vishay’s BAT54S and other vendors’ identical dual-Schottky parts in SOT-23. For exact cross-references and packaging options (QR, TR, etc.), check distributor databases (Digi-Key, Mouser) with BAT54S-QR.
Features
Here are the features of BAT54S-QR:
- Dual Schottky barrier diodes in a single SOT-23 package
- Common cathode configuration (two anodes, one shared cathode)
- Reverse voltage VRRM: typically 30 V
- Forward current: IF(AV) ≈ 200 mA per diode
- Very low forward voltage drop (VF ~0.2–0.3 V at modest current)
- Fast switching with no minority-carrier tail
- Low reverse leakage
- Operating temp range typically −55 °C to 125 °C
- Packaging: -QR indicates Tape & Reel (for automated assembly); RoHS-compliant
Typical uses: diode-ORing, level shifting, clamping, and other high-speed, low-current switching tasks.
- Dual Schottky barrier diodes in a single SOT-23 package
- Common cathode configuration (two anodes, one shared cathode)
- Reverse voltage VRRM: typically 30 V
- Forward current: IF(AV) ≈ 200 mA per diode
- Very low forward voltage drop (VF ~0.2–0.3 V at modest current)
- Fast switching with no minority-carrier tail
- Low reverse leakage
- Operating temp range typically −55 °C to 125 °C
- Packaging: -QR indicates Tape & Reel (for automated assembly); RoHS-compliant
Typical uses: diode-ORing, level shifting, clamping, and other high-speed, low-current switching tasks.
Pinout
- Pin count: 3 pins (SOT-23 package).
- Function: Dual Schottky diode pair with a common anode. Pin 3 is the common anode; Pin 1 is the cathode of D1; Pin 2 is the cathode of D2. Used for OR-ing, clamping, and low-drop rectification.
- Function: Dual Schottky diode pair with a common anode. Pin 3 is the common anode; Pin 1 is the cathode of D1; Pin 2 is the cathode of D2. Used for OR-ing, clamping, and low-drop rectification.
Manufacturer
Manufacturer: Nexperia.
What kind of company: Nexperia is a global semiconductor company that designs and manufactures discrete components (such as diodes, transistors, and ESD protection), as well as related signal-conditioning devices. It is headquartered in the Netherlands and operates worldwide.
What kind of company: Nexperia is a global semiconductor company that designs and manufactures discrete components (such as diodes, transistors, and ESD protection), as well as related signal-conditioning devices. It is headquartered in the Netherlands and operates worldwide.
Application
BAT54S-QR is a dual Schottky diode (common cathode) in SOT-23 with low forward voltage and fast switching. Typical application areas:
- Diode-ORing of two sources to a common rail (power or signal lines)
- Reverse-polarity and input protection in low-voltage/battery circuits
- Freewheeling/clamping diodes in DC-DC converters and low-power supplies
- Fast rectification for compact adapters, USB, telecom interfaces
- Demodulation, envelope detection, and simple level-shifting in RF/logic circuits
- MCU/IC input protection from voltage spikes
QR signifies reel packaging for automated assembly.
- Diode-ORing of two sources to a common rail (power or signal lines)
- Reverse-polarity and input protection in low-voltage/battery circuits
- Freewheeling/clamping diodes in DC-DC converters and low-power supplies
- Fast rectification for compact adapters, USB, telecom interfaces
- Demodulation, envelope detection, and simple level-shifting in RF/logic circuits
- MCU/IC input protection from voltage spikes
QR signifies reel packaging for automated assembly.
Package
BAT54S-QR uses a SOT-23 (3-pin) package; it’s a dual Schottky diode with a common cathode configuration.
