Nexperia USA Inc. PIMC32-QX

Overview

PIMC32-QX from Nexperia is an AEC-Q101-qualified NPN/PNP resistor-equipped double transistor (RET) in SOT457 (SC-74/TSOP6) package, integrating built-in bias resistors R1 = 2.2 kΩ and R2 = 10 kΩ. It delivers 500 mA per transistor, supports ±50 V V_CEO, and serves as a compact, automotive-grade switching solution for digital control and load switching in space-constrained PCBs.

For engineers reviewing the PIMC32-QX datasheet, PIMC32-QX pinout, PIMC32-QX application, or PIMC32-QX equivalent, this device is selected for its dual-polarity RET architecture, integrated resistor ratio (R2/R1 = 4.55), low V_CEsat (≤100 mV at IC = 50 mA), and qualification for automotive environments - key criteria when replacing discrete BJT pairs or BC807-Q/BC817-Q series in cost-sensitive digital interfaces.

Technical Context

The PIMC32-QX integrates two complementary silicon transistors - TR1 (NPN) and TR2 (PNP) - each with dedicated on-chip base bias networks. TR1 features h_FE ≥ 70 at IC = 50 mA and f_T = 225 MHz; TR2 provides h_FE ≥ 70 under identical conditions and f_T = 140 MHz, enabling high-speed digital switching with matched gain characteristics across temperature.

Its internal resistor topology enables direct logic-level drive: VI(on) = 0.5–1.4 V (TR1) and −0.5–−1.4 V (TR2), while VI(off) remains ≤1 V magnitude, ensuring robust noise immunity. Thermal resistance is specified at R_th(j-a) = 298 K/W (per device, FR4 PCB), supporting operation up to T_amb = 150 °C.

Key Specifications

Pinout & Package

SOT457 (SC-74/TSOP6) 6-pin surface-mount plastic package, 3.0 mm × 1.7 mm footprint, 0.95 mm height, with gull-wing leads and pin 1 index marking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-transistor switching applications.

Compared with PIMN32-Q, PIMC32-QX adds essential PNP functionality for complementary switching; compared with BC807-Q/BC817-Q, it reduces board area by 65%, eliminates two passive components per channel, and guarantees matched R1/R2 ratios - critical for timing-critical digital interfaces.

Availability

PIMC32-QX is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, consumer appliance motor control, and medical diagnostic equipment requiring stable component supply, AEC-Q101 compliance, and compact dual-transistor integration.

Supply support for PIMC32-QX 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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.

PIMC32-QX belongs to Nexperia's Q-qualified Resistor-Equipped Transistor (RET) product line, designed specifically to simplify digital interface design in automotive and industrial systems by integrating biasing networks into dual-transistor packages.

FAQ

What is the maximum junction temperature and how does it affect continuous operation?

The absolute maximum junction temperature is 150 °C. At ambient temperatures above 25 °C, total power dissipation must be linearly derated from 420 mW using the specified R_th(j-a) = 298 K/W value. For example, at T_amb = 85 °C, maximum allowable P_tot drops to 295 mW - limiting sustained 500 mA operation unless heatsinking or airflow is added.

Can PIMC32-QX be used in analog amplifier configurations?

No - PIMC32-QX is optimized for digital switching, not linear amplification. Its built-in resistors fix base biasing for saturation, and h_FE variation across IC (±30% typical) and temperature makes it unsuitable for stable analog gain. Use discrete BJTs like BC847B or PBSS4041 for amplifier designs.

How does the R2/R1 ratio impact switching performance?

The R2/R1 = 4.55 ratio sets the internal base current division, ensuring TR1 and TR2 achieve simultaneous saturation under matched drive conditions. This prevents shoot-through in complementary configurations and maintains consistent V_CEsat across temperature (−40 °C to +150 °C), unlike discrete resistor pairs subject to tolerance stacking.

Is there a recommended PCB layout for thermal management?

Yes - the datasheet specifies mounting on FR4 with 35 µm copper, tin-plated, and standard SOT457 footprint (Fig. 20). To achieve rated 420 mW dissipation, maintain ≥1.5 mm clearance around all pins, avoid copper pours under the package body, and use thermal vias under pins 1 and 4 (GND terminals) to inner ground planes.