DDTA114WKA-7-F

Overview

The DDTA114WKA-7-F is a PNP pre-biased small signal surface mount transistor from Diodes Incorporated, housed in an SC-59 package. It features built-in biasing resistors with nominal values of R1 = 10 kΩ and R2 = 47 kΩ. The device supports a supply voltage (VCC) of -50 V and a continuous collector current (IC) of -100 mA. Power dissipation is rated at 200 mW, with a junction-to-ambient thermal resistance of 625 °C/W. The operating temperature range spans from -55°C to +150°C.

Feature Summary

• Epitaxial planar die construction for reliable performance
• Integrated unequal biasing resistors simplify circuit design
• RoHS compliant and lead-free manufacturing

Applications

• General-purpose switching applications
• Driver circuits for logic interfaces
• Pre-biased transistor replacements in compact designs

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging details. Ensure compliance with RoHS standards if required by the target application. Confirm that the SC-59 footprint matches the PCB layout requirements before finalizing procurement decisions.

Selection Notes

Select this component when a PNP digital transistor with a 10k/47k resistor ratio is needed. Compare the -100mA current limit and -50V voltage rating against system requirements. Consider the SC-59 package dimensions for space-constrained layouts.

Part Context

This part belongs to the DDTA114 series of pre-biased transistors. It serves as the PNP counterpart to the DDTC114 series NPN devices. The KA suffix indicates the SC-59 surface mount package configuration used in this specific product line.

Replacement Considerations

Direct substitutes include other DDTA114 variants with different resistor ratios or the complementary DDTC114 series for NPN requirements. Verify pinout compatibility and electrical ratings before substituting.