PDTC124TK,115

Overview

The PDTC124TK,115 is a digital transistor manufactured by Nexperia (formerly NXP Standard Products), housed in the SOT-323 surface-mount package. It integrates an NPN bipolar junction transistor with built-in bias resistors configured as a single unit. The device features a typical base resistor of 22 kOhms and a standard resistor ratio of 1. Key electrical ratings include a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 100 mA. It operates within a temperature range of -65°C to +150°C.

Feature Summary

• Integrates an NPN transistor with built-in bias resistors to reduce component count and PCB space.
• Designed for high switching performance with a compact SOT-323 surface-mount footprint.
• Capable of operating across a wide industrial temperature range up to 150°C.

Applications

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

Procurement Notes

Verify the manufacturer designation carefully, as the product originates from Nexperia following the divestiture of NXP's Standard Products business. Confirm that the '115' suffix corresponds to the specific reel or tape packaging required for your assembly line. Ensure compliance with RoHS directives and check for any relevant PCN documentation regarding material changes.

Selection Notes

Select this component when a compact solution is needed for driving logic inputs or small loads without external biasing components. Compare the 22 kOhm input resistance against circuit requirements to ensure proper drive levels. Verify that the 50 V rating provides sufficient margin for the application's supply voltage and transient conditions.

Part Context

This part belongs to the PDTC1xx series of digital transistors, which are widely used in consumer electronics and computing equipment. The TK suffix typically denotes the SOT-323 package variant. While historically associated with NXP branding in older documentation, current production and datasheets identify Nexperia as the active manufacturer.

Replacement Considerations

Compatible substitutes include the PDTC124EU and PDTC124TT, provided the package type matches the design constraints. Verify pinout compatibility and electrical parameters such as hFE and VCEO before substitution.