BAT74 [NEXPERIA]

• Low forward voltage

• Guard-ring protected

• Small SMD plastic package

• AEC-Q101 qualified

Key Features

1. Two independent Schottky diodes
BAT74 integrates two electrically isolated Schottky diodes in one package, giving designers flexibility for signal steering, clamping, switching, and dual-diode circuit functions.

2. Low forward voltage
As a Schottky diode, BAT74 provides low forward voltage compared with ordinary PN junction diodes. This helps reduce voltage loss and power dissipation in low-voltage signal and protection circuits. Avnet also highlights low forward voltage as a key feature of BAT74.

3. Fast switching behavior
Schottky diodes have very fast switching characteristics because they do not rely on minority-carrier storage like standard PN diodes. This makes BAT74 suitable for high-speed switching and signal-routing circuits.

4. 30V reverse voltage rating
The device supports up to 30V DC reverse voltage, making it suitable for low-voltage signal, logic, communication, and control circuits.

5. 200mA current rating per diode
Each diode is rated for 200mA average rectified current, which is suitable for small-signal switching, clamping, steering, and low-current rectification functions.

6. Integrated guard ring for stress protection
Nexperia describes BAT74 as a planar Schottky barrier double diode with an integrated guard ring for stress protection. This improves robustness in practical circuit environments.

7. Compact SOT143B package
The small SOT143B SMD package saves PCB space and is suitable for dense automotive, communication, consumer, and industrial electronic designs.

8. Automotive-qualified version
Nexperia’s product page identifies BAT74 as automotive qualified, making it relevant for automotive electronics sourcing and BOM support.

• Ultra high-speed switching

• Voltage clamping

• Protection circuits

• Blocking diodes