DDTA144GE-7-F

Overview

The DDTA144GE-7-F is a PNP pre-biased small signal surface mount transistor from Diodes Incorporated, belonging to the R2-only series. It features an epitaxial planar die construction in a SOT523 package. The device integrates a single shunt resistor (R2) with a nominal value of 47 kΩ and a tolerance of ±30%. Key electrical parameters include a collector-emitter voltage (VCEO) of -50 V, a continuous collector current (IC) of -100 mA, and a power dissipation (PD) of 150 mW at 25°C. The DC current transfer ratio (hFE) is typically 68 at IC = -5mA and VCE = -5V. The gain-bandwidth product (fT) is 250 MHz. Operating temperature range spans from -55°C to +150°C.

Feature Summary

• Epitaxial planar die construction for high reliability
• Integrated single shunt biasing resistor (R2 only)
• Qualified to AEC-Q101 standards for automotive applications
• Totally lead-free and fully RoHS compliant

Applications

• Automotive electronic circuits requiring AEC-Q101 qualification
• General purpose switching and amplification in surface mount designs
• Biasing networks in portable and battery-powered devices

Procurement Notes

Verify component authenticity through authorized Diodes Incorporated distribution channels. Confirm that the ordering suffix '-7-F' corresponds to the specified reel size of 7 inches and tape width of 8 mm with 3000 units per reel. Ensure compliance with RoHS 3 and REACH regulations as stated in the datasheet notes. Check for specific marking codes corresponding to the production date code.

Selection Notes

Select this component when a PNP pre-biased transistor with a 47 kΩ internal shunt resistor is required. The SOT523 package offers a compact footprint suitable for space-constrained PCB layouts. Consider the 150 mW power dissipation limit and thermal resistance of 833 °C/W for thermal management. Verify that the -50 V voltage rating meets the circuit requirements. Complementary NPN types are available in the DDTC series if needed.

Part Context

The DDTA144GE-7-F is part of the DDTA (R2-ONLY SERIES) E family from Diodes Incorporated. This series specifically includes transistors with only one built-in biasing resistor (R2), distinguishing it from other DDTA variants that may include both R1 and R2. The 'GE' suffix indicates the SOT523 package and AEC-Q101 qualification. Other members of this series include DDTA114GE, DDTA124GE, and DDTA115GE, which differ primarily in their R2 resistance values.

Replacement Considerations

Direct substitutes within the same manufacturer's R2-only series include DDTA114GE-7-F, DDTA124GE-7-F, and DDTA115GE-7-F, provided the different R2 values are acceptable for the application. Cross-manufacturer equivalents should be verified against the absolute maximum ratings and electrical characteristics, particularly VCEO, IC, and hFE.