2SA1774

Single Bipolar Transistors Overview

The onsemi 2SA1774 is a single PNP epitaxial planar silicon bipolar junction transistor (BJT) designed for general-purpose switching applications. It operates with a maximum collector-emitter voltage of 50 V and supports a continuous DC collector current of up to 100 mA. The device features a transition frequency of 140 MHz, enabling high-speed switching performance. It is housed in the compact SC-75 (SOT-416) surface-mount package, which measures approximately 1.65 x 0.9 x 0.8 mm. The component is qualified under AEC-Q100 standards for automotive reliability and can withstand junction temperatures up to +150°C.

Single Bipolar Transistors Feature Summary

• AEC-Q100 qualified for automotive-grade reliability
• High-speed switching capability with 140 MHz transition frequency
• Compact SC-75 surface-mount package design
• Low collector-emitter saturation voltage

Single Bipolar Transistors Applications

• Automotive load switching circuits
• General-purpose signal switching
• Driver stages for low-power loads

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix against the official onsemi datasheet to confirm exact electrical tolerances and packaging options. Ensure the selected variant matches the required AEC-Q100 qualification status if used in automotive systems. Confirm the package type corresponds to SC-75/SOT-416 dimensions for PCB layout compatibility. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Single Bipolar Transistors Selection Notes

Select this component when a small-form-factor PNP transistor is required for high-speed switching in space-constrained designs. The 100 mA current rating suits low-power driver applications rather than heavy load handling. Consider the thermal dissipation limits of the SC-75 package during circuit design. Verify that the 50 V breakdown voltage meets the system's maximum operating voltage requirements.

Single Bipolar Transistors Part Context

This device belongs to the 2SA1774 series of small-signal PNP transistors manufactured by onsemi. It utilizes epitaxial planar silicon technology optimized for fast switching speeds. The series is engineered to provide reliable performance in consumer electronics and automotive environments where miniaturization and speed are critical factors.

Single Bipolar Transistors Replacement Considerations

Publicly confirmed substitute part numbers were not identified in the provided documentation.