BAT54A — Datasheet Summary, Specs & Alternatives

01 — Overview

This datasheet covers the BAT54A, a dual Schottky barrier diode in an SOT23 package. It details electrical characteristics for ultra-high-speed switching and voltage clamping applications. Key parameters include a 30 V reverse voltage rating, 800 mV typical forward voltage at 100 mA, and 2 µA maximum reverse current. The document also lists thermal limits like a 150 °C junction temperature and provides pinout and ordering information.

02 — Key specifications

Datasheet parameters

Parameter	Min	Typ	Max	Conditions
forward voltage	—	—	800 mV	IF = 100 mA; tp≤ 300 μs; δ ≤ 0.02; pulsed; Tamb = 25 °C
operating temperature	-40 °C	—	150 °C
reverse voltage	—	—	30 V
forward current	—	200 mA	—
reverse leakage current	—	—	2 µA	VR = 25 V; tp≤ 300 μs; δ ≤ 0.02; pulsed; Tamb = 25 °C
rectified current	—	200 mA	—
peak pulse current	—	600 mA	—
junction capacitance	—	—	10 pF	VR = 1 V; f = 1 MHz; Tamb = 25 °C
reverse recovery time	—	—	5 ns	IF = 10 mA; IR = 10 mA; IR(meas) = 1 mA; RL = 100 Ω; Tamb = 25 °C

03 — Alternatives

Closest matches to BAT54A

BAT54SW 1.2× lower operating temperature, similar forward current, similar forward voltage

BAT54HT1 4.0× lower reverse leakage current, 3.6× lower forward voltage, 1.3× lower junction capacitance

BAT54SLT1G 4.0× lower reverse leakage current, 3.6× lower forward voltage, 1.3× lower junction capacitance

BAT54T1G 13.7× lower operating temperature, 4.0× lower reverse leakage current, 3.6× lower forward voltage

ESD5Z2.5T1G 18.3× higher peak pulse current, 14.5× higher junction capacitance, 12.0× lower reverse voltage

04 — FAQ

Frequently asked questions

What is the forward current of the BAT54A?

The forward current is 200 mA.

What is the forward voltage of the BAT54A?

The forward voltage is 800 mV at IF = 100 mA; tp≤ 300 μs; δ ≤ 0.02; pulsed; Tamb = 25 °C.

What is the junction capacitance of the BAT54A?

The junction capacitance is 10 pF at VR = 1 V, f = 1 MHz, and Tamb = 25 °C.

What is the maximum operating temperature for the BAT54A?

The maximum operating temperature is 150 °C.

What is the peak pulse current rating for the BAT54A?

The peak pulse current is 600 mA.

What is the rectified current of the BAT54A?

The rectified current is 200 mA.

What is the reverse leakage current of the BAT54A?

The reverse leakage current is 2 µA at VR = 25 V; tp≤ 300 μs; δ ≤ 0.02; pulsed; Tamb = 25 °C.

What is the reverse recovery time of the BAT54A?

The reverse recovery time is 5 ns at IF = 10 mA; IR = 10 mA; IR(meas) = 1 mA; RL = 100 Ω; Tamb = 25 °C.