Nexperia USA Inc. PDTA143XMB,315

Overview

PDTA143XMB from Nexperia is a PNP resistor-equipped transistor (RET) in a leadless DFN1006B-3 (SOT883B) package, designed for digital switching in space-constrained PCBs. It integrates R1 = 4.7 kΩ and R2 = 10 kΩ bias resistors, delivers −100 mA output current, exhibits −100 mV V_CE(sat) at −10 mA/−0.5 mA drive, and is AEC-Q101 qualified for automotive signal control.

For engineers reviewing the PDTA143XMB datasheet, PDTA143XMB pinout, PDTA143XMB application, or PDTA143XMB equivalent, this device serves as a drop-in replacement for discrete base-resistor transistor pairs in low-power logic interfacing, mobile peripheral drivers, and IC input control circuits where ultra-small footprint and reduced BOM count are critical.

Technical Context

This PNP RET uses an integrated dual-resistor network (R1 between base and input, R2 between base and emitter) to eliminate external bias components. Its internal transistor features h_FE ≥ 50 at −10 mA/−5 V, f_T = 180 MHz, and C_C = 3 pF - enabling fast switching with predictable turn-on/off thresholds.

The device operates across −65 °C to +150 °C ambient, with thermal resistance R_th(j-a) = 500 K/W on FR4 PCB, and supports VI(on) ≤ −1.5 V and VI(off) ≥ −0.9 V - ensuring robust noise immunity and clean digital state transitions in 1.8 V–5 V logic systems.

Key Specifications

Pinout & Package

Package: DFN1006B-3 (SOT883B), leadless ultra-small plastic package; dimensions 1.0 × 0.6 × 0.37 mm; 3 solder lands; bottom-side thermal pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PDTC143XMB and EMH11T2R, PDTA143XMB uniquely combines AEC-Q101 qualification, 0.37 mm height, and 180 MHz f_T - making it the only option for automotive-grade, ultra-thin, high-speed digital switching in space-critical applications.

Availability

PDTA143XMB is available at Aetrix Electronics and suitable for automotive interior lighting control, mobile display backlight driver, and industrial sensor interface applications requiring stable component supply and long-term lifecycle support.

Supply support for PDTA143XMB 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 discrete, logic, and PowerMOS 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) product line, engineered to replace discrete transistor-resistor combinations in digital logic interfacing and low-power switching applications.

FAQ

What is the maximum operating temperature for PDTA143XMB?

The junction temperature limit is 150 °C, and the ambient operating range is −65 °C to +150 °C. Derating begins above 25 °C ambient per the 500 K/W thermal resistance curve - at 85 °C ambient, maximum continuous power drops to 125 mW to maintain safe junction temperature.

Can PDTA143XMB be used with 1.8 V logic inputs?

Yes. VI(on) is specified as ≤ −1.5 V at −20 mA collector current, meaning it reliably turns on with 1.8 V logic high (referenced to emitter at GND). VI(off) ≥ −0.9 V ensures solid cutoff with 1.8 V logic low, providing >0.9 V noise margin.

Is there a thermal pad on the DFN1006B-3 package?

No. The DFN1006B-3 (SOT883B) package has three solderable terminals (pins 1–3) but no exposed thermal pad. Thermal dissipation relies solely on conduction through the copper traces and solder joints; recommended footprint follows Nexperia's reflow guidelines with 0.3 mm solder land width.

How does the R2/R1 ratio affect switching behavior?

The R2/R1 ratio of 2.1 ensures sufficient base-emitter feedback to prevent false triggering from leakage currents while maintaining adequate base drive for saturation. A higher ratio would increase noise immunity but reduce switching speed; this value balances stability and performance for general-purpose digital switching.