onsemi Digital Transistor 50 V NPN Surface Mount SOT-23 3-Pin MMUN2235LT1G

onsemi MMUN2235LT1G is a digital transistor featuring a single NPN bipolar transistor with an integrated bias resistor network embedded in a compact SOT-23 surface mount package. The device is engineered to replace traditional transistor-plus-resistor circuits, simplifying design and reducing component count and PCB area.

This transistor offers a maximum collector-emitter voltage of 50 V and maximum power dissipation of 400 mW, making it suitable for a wide range of electronic switching applications, including automotive and industrial sectors. Its minimum DC current gain of 80 ensures dependable switching and amplification performance.

Designed to meet the AEC-Q101 automotive standard, the MMUN2235LT1G excels in demanding environments, capable of operating up to 150°C. The component’s dimensions (3.04 mm length, 1.4 mm width, and 1.11 mm height) make it a compact choice for space-constrained circuit designs.

By integrating two resistors internally - a series base resistor and a base-emitter resistor - this device reduces the number of external components needed for biasing, thereby simplifying circuitry and lowering overall system cost.

Maximum Collector-Emitter Voltage of 50 V. Integrated monolithic bias resistor network. Compact surface mount SOT-23 package. Minimum DC Current Gain (hFE) of 80. Maximum Power Dissipation of 400 mW. Automotive standard compliant: AEC-Q101.

Operating temperature up to 150°C. Compact physical dimensions for PCB space efficiency.

This transistor is widely applicable in electronics manufacturing, automotive electronics, industrial automation, and general-purpose switching and amplification circuits where board space and design simplification are critical.

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