Nexperia USA Inc. PDTD113EQAZ

Overview

PDTD113EQAZ from Nexperia is an NPN resistor-equipped transistor (RET) in a DFN1010D-3 (SOT1215) package, designed for digital switching and IC input control. It features integrated 1 kΩ base bias resistors (R1 = R2), 50 V V_CEO, 500 mA I_O, AEC-Q101 qualification, and 0.37 mm profile-enabling compact automotive and industrial logic interface designs.

For engineers reviewing the PDTD113EQAZ datasheet, PDTD113EQAZ pinout, PDTD113EQAZ application, or PDTD113EQAZ equivalent, this device serves as a space- and BOM-optimized replacement for discrete BJT + resistor networks in load switching, level translation, and microcontroller GPIO interfacing where low saturation voltage (<100 mV at 50 mA) and ±10% resistor ratio tolerance are critical.

Technical Context

This RET integrates a monolithic NPN transistor with two precision-matched on-die bias resistors (R1 = R2 = 1 kΩ), eliminating external components for standard digital drive configurations. Its internal topology supports direct connection to 3.3 V/5 V logic outputs without external current-limiting resistors.

The DFN1010D-3 package provides dual collector terminals (pins 3 and 4) for enhanced thermal and current-handling capability, while side-wettable flanks enable AOI-compatible solder joint inspection. Thermal resistance to ambient is 218 K/W on single-layer FR4 with 1 cm² collector pad.

Key Specifications

Pinout & Package

DFN1010D-3 (SOT1215) is a 4-terminal, leadless surface-mount package with visible side pads for AOI and thermal enhancement. Dual collector terminals (pins 3 and 4) share the same electrical node and improve current derating and thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PDTB113EQAZ, PDTD113EQAZ enables low-side switching with simpler drive logic; compared with BC847B,315, it reduces BOM count and board area but trades off bias flexibility for integration-making it optimal for high-volume, space-constrained digital interface roles.

Availability

PDTD113EQAZ is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and wearable power management requiring stable component supply, AEC-Q101 compliance, and ultra-small footprint.

Supply support for PDTD113EQAZ 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 leader in high-performance discrete, logic, and power MOSFET semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.

This part belongs to Nexperia's Resistor-Equipped Transistor (RET) family, engineered to replace discrete BJT-resistor combinations in digital switching applications-reducing size, cost, and assembly complexity while maintaining AEC-Q101 reliability.

FAQ

What is the maximum continuous current PDTD113EQAZ can switch?

PDTD113EQAZ is rated for 500 mA continuous output current (I_O) under specified thermal conditions-specifically, when mounted on an FR4 PCB with a 1 cm² copper pad on the collector side. Derating applies above 25 °C ambient; at 100 °C, maximum usable current drops to approximately 325 mA based on its 575 mW power dissipation limit and thermal resistance of 218 K/W.

Can PDTD113EQAZ be used with 3.3 V logic without external resistors?

Yes. With R1 = R2 = 1 kΩ, PDTD113EQAZ draws ≈2.2 mA base current when driven by a 3.3 V logic high, placing it well within typical MCU GPIO sink capability (often ≥4 mA). Its VI(on) range (1.0–1.8 V) ensures reliable turn-on, and VI(off) (0.6–1.5 V) guarantees solid turn-off-eliminating need for external biasing components in standard digital interface roles.

How does the dual-collector pin configuration improve performance?

Pins 3 and 4 are internally shorted collector terminals. This design lowers effective bond wire resistance and spreads current across two solder joints, reducing localized heating and improving thermal transfer to the PCB. In practice, it increases current handling margin and enhances long-term reliability under pulsed or sustained 500 mA loads-especially on thermally constrained layouts where single-collector devices would exceed junction temperature limits.

Is PDTD113EQAZ pin-compatible with other parts in the PDTD1xxEQA series?

No. While all PDTD1xxEQA variants share the same DFN1010D-3 package and pinout, their internal resistor values differ (e.g., PDTD123EQAZ uses 2.2 kΩ resistors). Substituting them without circuit revalidation risks incorrect biasing-resulting in insufficient drive (if R too high) or excessive base current (if R too low). Always verify resistor values and VI(on)/VI(off) specs before interchange.