onsemi Surface Mount Schottky Diode 40 V 120 mA 3-Pin SOT-23 BAS40-04LT1G

onsemi BAS40-04LT1G is a Schottky barrier diode designed for surface mount applications in electronic circuits, offering low forward voltage drop and fast switching capabilities. This diode uses the Schottky barrier principle to optimize the trade-off between forward voltage drop and reverse leakage current, making it suitable for high frequency and low voltage rectification tasks.

Featuring a compact 3-pin SOT-23 package, this device measures 2.9 mm in length, 1.3 mm in width, and 0.94 mm in height, with a very lightweight body at approximately 11.7 mg. It operates reliably in a broad temperature range from -55°C to 150°C, making it suitable for demanding industrial, automotive, and consumer electronics environments.

The diode withstands a maximum continuous forward current of 120 mA, a peak reverse repetitive voltage of 40 V, and a peak non-repetitive forward surge current of 600 A, offering robustness in transient conditions. Its forward voltage drop is maximized at 1 V, supporting improved power efficiency in circuits.

Compliant with AEC-Q101 automotive standards, the BAS40-04LT1G is optimized for automotive and industrial applications requiring compact size, low weight, and superior switching characteristics. Common uses include power rectification in power supplies, polarity protection circuits, and freewheeling diode roles in switching regulators and DC/DC converters.

The epoxy moulded case provides stress protection and mechanical strength, enhancing reliability through thermal cycles and vibrations commonly encountered in industrial and automotive settings.

Surface mount package optimized for high volume automated assembly. Schottky barrier technology lowers forward voltage drop and switching losses. Complies with automotive-grade AEC-Q101 standard. Wide temperature range supports harsh environmental conditions.

Compact form factor for space constrained circuit designs. Lightweight and robust epoxy moulded construction. Designed for low voltage, high frequency rectification in industrial electronics. Suitable for freewheeling and polarity protection diode applications.

Excellent transient current capability with 600 A surge rating. 3-pin SOT-23 package ensures easy PCB mounting and integration.

onsemi products with model numbers prefixed by NSV-, SBR- or S- are automotive qualified and offer reliable performance in stringent conditions. This diode represents a high-quality solution for design engineers requiring efficiency, durability, and size optimization.

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