Nexperia USA Inc. PDTD113EUF

Overview

PDTD113EUF from Nexperia is an NPN resistor-equipped transistor (RET) in SOT323 (SC-70) package, designed for digital switching applications with 50 V V_CEO, 500 mA I_O, and integrated 1 kΩ R1 / 1 kΩ R2 bias resistors. It simplifies driver-stage design in automotive and industrial control circuits where space-constrained PCBs require high-temperature operation up to 175 °C.

For engineers reviewing the PDTD113EUF datasheet, PDTD113EUF pinout, PDTD113EUF application, or PDTD113EUF equivalent, key selection criteria include its AEC-Q101 qualification, ±10 % R2/R1 ratio tolerance, 100 mV V_CE(sat) at 50 mA, and compatibility with 3.3 V/5 V logic-level inputs driving inductive loads.

Technical Context

This RET integrates a monolithic NPN transistor with two precision on-die bias resistors-R1 (base input) and R2 (base-emitter feedback)-enabling single-resistor external drive and eliminating discrete base bias networks. Its architecture supports direct interfacing with microcontroller GPIOs without additional passive components.

The device operates across −55 °C to +175 °C ambient, with thermal resistance R_th(j-a) of 353 K/W on 4-layer FR4 PCBs, and delivers h_FE ≥33 at I_C = 50 mA, V_CE = 5 V. Built-in resistor matching ensures stable turn-on/off thresholds under temperature and process variation.

Key Specifications

Pinout & Package

SOT323 (SC-70) plastic surface-mounted package: 1.35 mm × 1.15 mm × 0.45 mm body, 3-terminal leadframe, tin-plated terminations compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN resistor-equipped transistor applications.

Compared with PDTB113EU, PDTD113EUF enables low-side switching with identical biasing simplicity but opposite current direction; versus BC807-40, it trades minor V_CE(sat) penalty for guaranteed resistor matching, reduced assembly steps, and AEC-Q101 assurance in automotive-grade designs.

Availability

PDTD113EUF is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output modules, consumer appliance control boards, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.

Supply support for PDTD113EUF 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 focused on essential semiconductors, delivering high-performance, reliable components for automotive, industrial, mobile, and computing markets.

The PDTD1xxxU series targets cost-sensitive, space-constrained digital switching applications where integration, qualification, and thermal resilience outweigh raw analog performance-designed specifically to replace legacy discrete BJT + resistor combinations in automotive ECUs and industrial controls.

FAQ

What is the maximum safe operating voltage for PDTD113EUF?

The absolute maximum collector-emitter voltage (V_CEO) is 50 V under open-base conditions. For reliable long-term operation, design should maintain V_CE ≤ 40 V in transient-heavy environments such as automotive load-dump scenarios, with appropriate snubbing or clamping to prevent overshoot beyond 50 V.

Can PDTD113EUF drive a 12 V relay coil directly?

Yes-its 500 mA I_O rating and 50 V V_CEO support typical 12 V relay coils drawing 20–150 mA. Ensure the relay's back-EMF is suppressed with a flyback diode across the coil, as the device lacks integrated clamp protection. Verify V_CE(sat) remains ≤100 mV at the actual coil current to avoid excessive heating.

How does the built-in R2/R1 ratio affect switching behavior?

With R2/R1 = 1.0 ±10 %, the device provides tightly controlled input threshold hysteresis: VI(on) ≈ 1.4 V and VI(off) ≈ 0.9 V at 25 °C. This ensures robust noise immunity against 100–200 mV supply ripple or crosstalk, preventing unintended toggling in noisy industrial or automotive harness environments.

Is PDTD113EUF compatible with lead-free reflow soldering?

Yes-the SOT323 package uses standard SnAgCu (SAC305) compatible terminations and is qualified for JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260 °C. The recommended footprint matches Nexperia's sot323_fr layout (2.65 mm × 2.35 mm pad pitch, 0.55 mm pad width).