DDTC115EKA-7-F

Overview

The DDTC115EKA-7-F is an NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features built-in biasing resistors where R1 equals R2, with a nominal resistance of 100 kΩ. The device utilizes epitaxial planar die construction and is housed in an SC-59 (SOT-23) package. Key electrical parameters include a maximum collector-emitter voltage (VCC) of 50 V, a continuous collector current (IC) of 100 mA, and a power dissipation (Pd) of 200 mW. The gain-bandwidth product (fT) is 250 MHz at VCE = 10V and IE = 5mA. The DC current gain (hFE) has a minimum value of 82 at VO = 5V and IO = 5mA.

Feature Summary

• Integrates dual biasing resistors (R1=R2) to simplify circuit design and reduce component count.
• Utilizes epitaxial planar die construction for reliable performance.
• Available in a compact SC-59 surface mount package suitable for space-constrained applications.

Applications

• General-purpose switching applications
• Driver circuits for low-power loads
• Logic level translation interfaces

Procurement Notes

Verify the specific ordering suffix '-7-F' corresponds to the tape and reel packaging configuration containing 3000 units per reel. Confirm that the 'KA' designation aligns with the required SC-59 case style and RoHS compliance status before finalizing procurement orders.

Selection Notes

Select this component when a single NPN digital transistor with equal base and emitter biasing resistors is required. Ensure the 100 kΩ resistor value matches the target input current requirements. Verify that the 50 V voltage rating and 200 mW power dissipation are sufficient for the intended operating conditions.

Part Context

This part belongs to the DDTC series of NPN pre-biased transistors from Diodes Incorporated. The '115' identifier specifically denotes the 100 kΩ resistor value within the R1=R2 configuration family. Complementary PNP types are available under the DDTA series numbering convention.

Replacement Considerations

Direct substitutes must match the NPN polarity, 100 kΩ internal resistor ratio, and SC-59 package. Verify equivalent electrical ratings for VCEO, IC, and Pd. Check manufacturer-specific marking codes and thermal resistance values for compatibility.