Nexperia USA Inc. PUMD48,115

Overview

PUMD48 from Nexperia is a resistor-equipped double transistor (RET) integrating one NPN and one PNP bipolar junction transistor in a single SOT363-3 (TSSOP6) package, with built-in bias resistors R1 = 47 kΩ / R2 = 47 kΩ (TR1, NPN) and R1 = 2.2 kΩ / R2 = 47 kΩ (TR2, PNP), rated for 50 V V_CEO, 100 mA output current per transistor, and used in low-current digital interface and peripheral driver circuits.

For engineers reviewing the PUMD48 datasheet, PUMD48 pinout, PUMD48 application, or PUMD48 equivalent, this device serves as a space- and BOM-optimized replacement for discrete NPN+PNP transistor pairs in level-shifting, logic buffering, and IC input control where simplified biasing and reduced PCB footprint are critical.

Technical Context

The PUMD48 integrates two independent RETs on one die: TR1 is an NPN transistor with 47 kΩ input bias resistor (R1) and unity R2/R1 ratio, enabling direct TTL/CMOS-compatible switching; TR2 is a PNP transistor with 2.2 kΩ R1 and 21× R2/R1 ratio, optimized for complementary low-side/high-side drive configurations.

Both transistors share thermal coupling within the same SOT363-3 package but operate electrically isolated, with separate emitter (GND1/GND2), base (I1/I2), and collector (O1/O2) terminals - supporting push-pull, inverter, or dual-signal conditioning topologies without external bias networks.

Key Specifications

Pinout & Package

SOT363-3 (TSSOP6) plastic surface-mount package: 2.2 mm × 1.35 mm × 0.95 mm body, 0.65 mm lead pitch, gull-wing leads, moisture sensitivity level 1 (MSL1).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual RET applications.

Compared with NSVDU2D100L and EMX11T2R, PUMD48 uniquely balances NPN/PNP asymmetry (2.2 kΩ vs. 47 kΩ R1), enabling simultaneous strong sourcing and sinking in compact layouts - making it optimal for mixed-voltage interface and real-time control where timing symmetry and drive strength are co-critical.

Availability

PUMD48 is available at Aetrix Electronics and suitable for industrial sensor interfaces, embedded microcontroller I/O expansion, and consumer electronics LED control requiring stable component supply and long-term production continuity.

Supply support for PUMD48 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 - delivering discrete, logic, and MOSFET solutions for automotive, industrial, and mobile markets.

The PUMD48 belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically to reduce design complexity and PCB area in digital interface and peripheral driver applications where discrete transistor biasing adds cost and risk.

FAQ

What is the maximum safe operating voltage for each transistor in the PUMD48?

Each transistor is rated for V_CEO = 50 V and V_CBO = 50 V (NPN) or −50 V (PNP), with absolute maximum input voltage limits of +40 V / −10 V on I1 and +5 V / −12 V on I2. Operation above these values risks permanent breakdown, especially under transient conditions; derating to ≤40 V is recommended for 15-year field reliability in industrial environments.

Can the PUMD48 be used in linear amplifier mode?

No - the PUMD48 is characterized and qualified exclusively for switching operation. Its built-in bias resistors fix base current paths, and parameters like h_FE and V_CE(sat) are specified only under saturated switching conditions. Linear gain, bandwidth, and distortion data are not provided; use dedicated general-purpose transistors (e.g., BC847) for analog amplification.

How does thermal performance differ between per-transistor and per-device power ratings?

The per-transistor P_tot = 200 mW applies when only one transistor operates continuously; the per-device rating of 300 mW assumes both transistors share thermal mass on the same die. Simultaneous 100 mA operation in both channels requires ambient ≤60 °C on standard FR4 to stay within the 300 mW limit - verified by the 417 K/W junction-to-ambient thermal resistance curve in Figure 1.

Is the PUMD48 suitable for automotive applications?

No - the PUMD48 is not AEC-Q101 qualified and lacks automotive-grade screening, extended temperature validation (−40 °C to +125 °C operational), or PPAP documentation. Nexperia explicitly states non-automotive qualification in its legal disclaimers; for automotive use, select the AEC-Q101-certified PUMD48-Q series (if available) or equivalent automotive RETs like PBSS4041T.