NXP Semiconductors PDTA114EK,115

Overview

PDTA114EK,115 from Nexperia (formerly Philips Semiconductors) is a PNP resistor-equipped transistor with integrated 10 kΩ base bias resistors (R1 = R2 = 10 kΩ), designed for simplified switching in low-power digital interface circuits. It features −50 V V_CEO, −100 mA I_O, and SOT346 (SC-59) surface-mount package, commonly used in level-shifting and logic buffer applications.

For engineers reviewing the PDTA114EK,115 datasheet, PDTA114EK,115 pinout, PDTA114EK,115 application, or PDTA114EK,115 equivalent, key selection criteria include its built-in bias network, guaranteed −1.8 V V_i(on) threshold, −150 mV V_CE(sat) at −10 mA/−0.5 mA drive, and compatibility with reflow-only assembly per JEDEC J-STD-020.

Technical Context

This device integrates two precision 10 kΩ resistors (R1 between base and input, R2 between base and emitter) to form a single-transistor digital switch with fixed current-limiting and turn-on/off control. Its PNP topology enables active-low signal inversion and high-side switching without external bias components.

Designed for DC-coupled logic interfacing, it operates reliably across −65 °C to +150 °C ambient, supports ≤−100 mA peak collector current, and delivers consistent h_FE ≥30 at −5 mA I_C, enabling predictable gain in saturated-switch mode.

Key Specifications

Pinout & Package

Package: SOT346 (TO-236, SC-59), plastic surface-mounted, 3-lead package with standard lead pitch of 1.9 mm and body dimensions 2.9 × 1.3 × 1.0 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP digital transistor applications.

Compared with PDTC114EK and NSV11201T1G, PDTA114EK,115 provides optimal balance of proven reliability, standardized SOT346 pinout for legacy designs, and precise −1.8 V V_i(on) for seamless integration with modern low-voltage logic families.

Availability

PDTA114EK,115 is available at Aetrix Electronics and suitable for logic interface design, high-side switching, and inverter circuits requiring stable component supply, long-term obsolescence management, and traceable sourcing for automotive infotainment modules, industrial PLC I/O cards, and consumer appliance control boards.

Supply support for PDTA114EK,115 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET solutions, spun off from Philips Semiconductors in 2017 and headquartered in Nijmegen, Netherlands.

The PDTA114EK,115 belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically for reducing component count and improving assembly yield in digital signal conditioning and power switching applications across consumer, industrial, and automotive markets.

FAQ

What is the pin configuration of PDTA114EK,115?

The PDTA114EK,115 uses SOT346 package with pin 1 = Base, pin 2 = Emitter, pin 3 = Collector. This configuration is confirmed in the "Simplified outline, symbol and pinning" section of the official datasheet and matches the standard pinout for all PDTA114E-series variants in SOT346. No external base connection is needed due to internal R1/R2 network.

Does PDTA114EK,115 support lead-free reflow soldering?

Yes, PDTA114EK,115 is qualified for lead-free reflow soldering per JEDEC J-STD-020. The datasheet explicitly states "Reflow soldering is the only recommended soldering method" and specifies thermal profiles compatible with standard Pb-free processes. This makes PDTA114EK,115 suitable for RoHS-compliant manufacturing lines without requiring special handling.

What is the typical V_i(on) for PDTA114EK,115 and how does it affect logic interfacing?

The typical V_i(on) for PDTA114EK,115 is −1.8 V, with a guaranteed range of −2.5 V to −1.8 V at I_C = −10 mA and V_CE = −0.3 V. This ensures reliable turn-on when driven by 3.3 V or 5 V logic outputs, as the input sees sufficient reverse bias across R1 to activate the PNP junction without requiring additional pull-down resistors or level shifters in the PDTA114EK,115 circuit.

Can PDTA114EK,115 replace a discrete PNP transistor plus two resistors?

Yes, PDTA114EK,115 is functionally designed to replace a discrete PNP transistor (e.g., BC807) plus two 10 kΩ bias resistors. Its integrated R1 and R2 match the specified values within ±30%, and its electrical characteristics-including h_FE ≥30, V_CE(sat) ≤−150 mV, and V_CEO = −50 V-are aligned with common general-purpose PNP devices. Using PDTA114EK,115 reduces component count, placement time, and potential mismatch errors in production.

What is the maximum operating temperature for PDTA114EK,115?

The maximum junction temperature (T_j) for PDTA114EK,115 is +150 °C, and the operating ambient temperature range is −65 °C to +150 °C. These limits are specified in the "Limiting Values" table of the datasheet and apply under standard mounting conditions. Thermal resistance from junction to ambient (R_{th j-a}) is 500 K/W for the SOT346 package, so proper PCB copper area must be provided to maintain T_j within spec at full 250 mW dissipation.