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The DDTC115GUA-7 is an NPN pre-biased small signal surface mount transistor from Diodes Incorporated, housed in a SOT-323 package. It features an epitaxial planar die construction with a built-in bleeder resistor (R2) of 100 kOhms nominal value. Key electrical ratings include a collector-emitter voltage (VCEO) of 50 V, continuous collector current of 100 mA, and power dissipation of 200 mW. The device exhibits a minimum DC current gain (hFE) of 82 at IC=5mA, VCE=5V, and operates within a temperature range of -55°C to +150°C.
Verify the specific ordering suffix against official documentation to confirm packaging details such as tape and reel quantities. Confirm compliance requirements including RoHS status and green molding compound availability based on the manufacturing date code. Ensure the component meets the required thermal resistance and moisture sensitivity levels for the intended assembly process.
Select this component when a single NPN pre-biased transistor with a 100 kOhm internal resistor is required in a compact SOT-323 footprint. Consider the 50 V voltage rating and 100 mA current capability for appropriate load driving. Verify that the hFE characteristics and saturation voltages align with the specific logic interface requirements of the target application.
This part belongs to the DDTC115 series of NPN pre-biased transistors manufactured by Diodes Incorporated. The series offers complementary PNP types (DDTA) and varies primarily by the value of the integrated resistor. The DDTC115 variant specifically utilizes a 100 kOhm resistor, distinguishing it from other members like the DDTC114 or DDTC124.
Direct substitutes may include other NPN pre-biased transistors with similar voltage, current, and resistor values in SOT-323 packages. Verify pinout compatibility and electrical parameters before substitution.