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The DDTA144TE-7 is a PNP pre-biased transistor manufactured by Diodes Incorporated, housed in an SOT523 surface-mount package. It features a built-in single biasing resistor (R1) with a nominal value of 47 kΩ. The device supports a collector-emitter voltage (VCEO) of -50 V and a continuous collector current of -100 mA. Maximum power dissipation is rated at 150 mW, with an operating temperature range spanning from -55°C to +150°C. Electrical characteristics include a minimum DC current gain (hFE) of 100 and a transition frequency (fT) of 250 MHz.
Verify the specific ordering suffix against official documentation to confirm compliance status and packaging details. Confirm that the component meets required environmental standards such as RoHS 3 and REACH before integration into final products. Ensure proper handling procedures are followed during assembly to maintain moisture sensitivity level 1 integrity.
Select this component when a compact PNP solution with integrated base resistance is required. The SOT523 package offers space efficiency for high-density layouts. Verify that the 47 kΩ internal resistor aligns with the target drive current and logic interface requirements. Consider thermal derating curves if operating near maximum ambient temperatures.
This part belongs to the DDTA R1-only series, which integrates a single biasing resistor directly onto the transistor die. This configuration reduces external component count compared to discrete resistor-transistor networks. The series includes various resistor values to accommodate different input drive conditions while maintaining a consistent form factor across the product line.
Direct replacements must match the PNP polarity, SOT523 package, and 47 kΩ internal resistor value. Verify that alternative components meet the same -50 V voltage rating and 100 mA current capacity. Check for equivalent thermal resistance and transition frequency specifications to ensure circuit stability is maintained.