Nexperia USA Inc. PDTB143XTVL

Overview

PDTB143XTVL from Nexperia is a PNP resistor-equipped transistor (RET) in SOT23 (TO-236AB) package, designed for digital switching applications with built-in bias resistors R1 = 4.7 kΩ and R2 = 10 kΩ, −50 V VCEO rating, −500 mA output current capability, and AEC-Q101 qualification for automotive use.

For engineers reviewing the PDTB143XTVL datasheet, PDTB143XTVL pinout, PDTB143XTVL application, or PDTB143XTVL equivalent, key selection criteria include input/output voltage thresholds (VI(on)/VI(off)), DC current gain (hFE = 70 at IC = −50 mA), thermal performance up to 175 °C junction temperature, and compatibility with logic-level control signals in space-constrained PCB layouts.

Technical Context

This PNP RET integrates two precision bias resistors (R1 = 4.7 kΩ, R2 = 10 kΩ) to eliminate external base components, enabling direct connection to CMOS/TTL outputs. Its R2/R1 ratio of 2.13 ±0.21 ensures stable saturation under varying temperature and process conditions.

The device operates as a single-pole, single-throw switch with collector-emitter saturation voltage ≤ −100 mV at IC = −50 mA/IB = −2.5 mA, and supports off-state input voltage down to −1.1 V while maintaining ICEO ≤ −0.5 μA at VCE = −50 V.

Key Specifications

Pinout & Package

Package: SOT23 (TO-236AB), surface-mount plastic package with 3 leads, 1.9 mm × 1.1 mm footprint, 0.45 mm nominal thickness, optimized for reflow soldering per IPC-7095.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PDTB143XTVL, PDTB143ET offers superior off-state noise rejection but reduced current gain stability, while BC807-40 delivers higher hFE at the expense of design complexity, qualification, and thermal robustness.

Availability

PDTB143XTVL is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, and consumer appliance power sequencing requiring stable component supply, AEC-Q101 compliance, and high-temperature operation.

Supply support for PDTB143XTVL 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 for efficient power management, logic, and analog functions, serving automotive, industrial, and consumer markets.

PDTB143XTVL belongs to the PDTB1xxxT series of resistor-equipped transistors, engineered to replace discrete BJT + resistor combinations in digital switching applications while meeting stringent automotive reliability standards.

FAQ

What is the maximum allowable ambient temperature for continuous operation?

The PDTB143XTVL supports ambient temperatures from −55 °C to +175 °C, but continuous operation depends on power dissipation and PCB thermal design. At 320 mW total power dissipation (single-layer FR4), ambient must be ≤ 100 °C to maintain junction temperature ≤ 175 °C; derating curves in Figure 1 define precise limits per layout.

Can PDTB143XTVL replace BC807-40 in existing designs without layout changes?

No - PDTB143XTVL has different pinout (input/emitter/collector vs. emitter/base/collector) and internal biasing, requiring schematic and layout revision. It replaces BC807-40 + two external resistors, not the bare transistor alone. Pin 1 is input (not base), Pin 2 is emitter (not base), and Pin 3 is collector (not emitter).

Is the R2/R1 ratio guaranteed over temperature?

Yes - the R2/R1 ratio is specified as 1.91 to 2.34 (typical 2.13) at Tamb = 25 °C, and Nexperia's characterization data (Figures 11–14) confirms stable hFE and VI(on)/VI(off) behavior from −40 °C to +100 °C, indicating matched resistor TC tracking within the monolithic die.

Does PDTB143XTVL support PWM switching at frequencies above 10 kHz?

Yes - with fT = 140 MHz and low Cc = 11 pF, the device supports clean switching at ≥100 kHz. However, practical PWM performance depends on load inductance and drive strength; typical turn-on/turn-off times are <100 ns, verified in Figures 15 and 17 under IC = −50 mA conditions.