Nexperia USA Inc. PIMN32PAX

Overview

PIMN32PA from Nexperia is an NPN/NPN resistor-equipped double transistor (RET) in a DFN2020-6 (SOT1118) leadless SMD package, rated for 50 V V_CEO and 500 mA per transistor output current, with integrated bias resistors R1 = 2.2 kΩ and R2 = 10 kΩ (R2/R1 = 4.55), used for digital switching and IC input control in space-constrained consumer and industrial PCBs.

For engineers reviewing the PIMN32PA datasheet, PIMN32PA pinout, PIMN32PA application, or PIMN32PA equivalent, this device serves as a drop-in alternative to discrete BC817-based driver stages-offering reduced BOM count, simplified layout, and verified thermal performance up to 150 °C junction temperature on standard FR4 PCBs.

Technical Context

This dual NPN RET integrates two matched silicon transistors with monolithically embedded base bias networks-R1 connects each base to its input, while R2 shunts base to emitter-enabling single-resistor drive logic-level signals without external pull-downs. The architecture supports independent switching of two loads with shared ground terminals (GND1, GND2) and cross-coupled collector outputs (O1, O2).

Each transistor exhibits DC current gain (h_FE) ≥ 70 at I_C = 50 mA, V_CE = 5 V, and maintains V_CE(sat) ≤ 100 mV under same conditions. Input voltage thresholds are VI(on) = 0.95 V (typ) and VI(off) = 0.65 V (typ), ensuring reliable TTL/CMOS compatibility across −40 °C to +100 °C ambient.

Key Specifications

Pinout & Package

Package: DFN2020-6 (SOT1118), 2.0 mm × 2.0 mm × 0.65 mm, leadless, thermally enhanced ultra-thin outline with 0.65 mm pitch and exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with PIMC32PA, the PIMN32PA provides native low-side switching with tighter input threshold control; versus BC847BDW1T1G, it trades off maximum h_FE for 5× higher output current and 60% fewer passives-making it optimal for cost- and area-sensitive 24 V digital I/O stages.

Availability

PIMN32PA is available at Aetrix Electronics and suitable for industrial control panels, consumer appliance PCBs, and automotive body electronics requiring stable component supply, long-term lifecycle support, and RoHS-compliant leadless packaging.

Supply support for PIMN32PA 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 essential semiconductors-including logic, discretes, MOSFETs, and ESD protection-serving automotive, industrial, mobile, and computing markets.

The PIMN32PA belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically to replace multi-component discrete switch stages in cost-sensitive, high-density digital interface applications.

FAQ

What is the maximum continuous current per transistor in PIMN32PA?

The PIMN32PA supports 500 mA continuous DC output current per transistor under specified thermal conditions-specifically, when mounted on a 4-layer FR4 PCB with a 1 cm² copper pad for the collector terminal. Derating applies above Tamb = 25 °C per Figure 1 in the datasheet, reaching zero current at ~125 °C ambient.

Can PIMN32PA be used in 1.8 V logic systems?

Yes-its VI(on) = 0.95 V (typ) and VI(off) = 0.65 V (typ) ensure reliable turn-on with 1.8 V GPIOs, provided series resistance limits input current to ≤0.7 mA (within R1 tolerance). No level shifter is needed, though layout must minimize noise coupling due to low threshold margins.

Is the thermal pad on the DFN2020-6 package electrically connected?

No-the exposed thermal pad on the SOT1118 package is not electrically connected to any internal die structure. It serves solely for thermal conduction and must be soldered to a large copper pour for optimal heat dissipation; no electrical isolation or grounding is required.

How does PIMN32PA differ from PIMP32PA?

PIMP32PA is the PNP/PNP complement of PIMN32PA-same package, pinout, and resistor values-but configured for high-side switching. While PIMN32PA sinks current from loads tied to V_CC, PIMP32PA sources current to loads tied to GND, making them functionally inverse rather than interchangeable.