Nexperia USA Inc. PEMD24,115

Overview

PEMD24 from Nexperia is a resistor-equipped double transistor (RET) integrating one NPN and one PNP bipolar junction transistor in a single SOT666 package, with built-in 100 kΩ input bias resistors (R1 = R2 = 100 kΩ), 50 V V_CEO, 20 mA output current rating per transistor, and optimized for low-current digital interface and peripheral driver applications.

For engineers reviewing the PEMD24 datasheet, PEMD24 pinout, PEMD24 application, or PEMD24 equivalent, this device serves as a space- and BOM-optimized replacement for discrete NPN+PNP pairs in level-shifting, logic buffering, and IC input control circuits where bias resistor integration reduces layout complexity and assembly cost.

Technical Context

The PEMD24 implements two monolithically integrated transistors - TR1 (NPN) and TR2 (PNP) - each with dedicated on-die base bias resistors (R1, R2) forming a fixed-input-resistor configuration. The NPN section exhibits h_FE ≥ 80 at I_C = 5 mA, V_CE = 5 V; the PNP section delivers comparable gain under negative-polarity conditions (V_CE = −5 V).

Both transistors share thermal coupling within the SOT666 package, enabling coordinated operation in complementary switching or push-pull configurations. The R2/R1 ratio is tightly controlled at 0.8–1.2, ensuring matched turn-on thresholds across temperature (−40 °C to +150 °C ambient).

Key Specifications

Pinout & Package

SOT666 plastic surface-mount package: 6-pin, 0.5 mm pitch, 1.6 mm × 1.2 mm × 0.55 mm body height, ultra-small footprint optimized for high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PEMB24 and NSVD24401FT1G, the PEMD24 uniquely combines NPN and PNP functionality with matched bias networks in one ultra-compact package - making it irreplaceable in space-constrained designs requiring complementary logic-level switching without external passive components.

Availability

PEMD24 is available at Aetrix Electronics and suitable for LED indicator systems, microcontroller GPIO expansion, logic-level translation interfaces, and IC input control circuits requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for PEMD24 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with leadership in efficiency, miniaturization, and manufacturability for high-volume applications.

The PEMD24 belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically to reduce bill-of-materials count and PCB area in digital interface and peripheral driver circuits across consumer, industrial, and computing platforms.

FAQ

What is the maximum continuous output current per transistor in the PEMD24?

The PEMD24 is rated for 20 mA continuous output current per transistor (I_O) under standard conditions (T_amb ≤ 25 °C, FR4 PCB). At elevated temperatures or higher duty cycles, derating applies - total device power dissipation is limited to 300 mW, and junction temperature must remain ≤150 °C.

Can the PEMD24 be used in automotive applications?

No - the PEMD24 is explicitly marked as non-automotive qualified in its datasheet revision history. It has not undergone AEC-Q101 stress testing or qualification for automotive environments. For automotive use, engineers must select Nexperia's AEC-Q101-qualified RETs such as the PUMD24 or equivalent qualified alternatives.

How are the internal bias resistors connected in the PEMD24?

R1 connects between pin 2 (I1) and pin 1 (GND1) for TR1 (NPN); R2 connects between pin 5 (I2) and pin 4 (GND2) for TR2 (PNP). Neither resistor shares nodes with the other transistor - enabling independent biasing and true complementary operation without crosstalk.

Is the SOT666 package lead-free and RoHS compliant?

Yes - the PEMD24 is manufactured in a lead-free, RoHS-compliant SOT666 package per Nexperia's product compliance documentation. The device meets JEDEC J-STD-020 moisture sensitivity level (MSL) 1 and supports standard reflow soldering profiles including IPC/JEDEC J-STD-020.