Nexperia USA Inc. PUMD16,115

Overview

PUMD16 from Nexperia is a resistor-equipped double transistor (RET) integrating one NPN and one PNP silicon bipolar transistor in a single SOT363-3 (TSSOP6) package, with built-in bias resistors R1 = 22 kΩ and R2 = 47 kΩ, rated for 50 V V_CEO and 100 mA output current per transistor, commonly used in low-current digital interface buffering and IC input control circuits.

For engineers reviewing the PUMD16 datasheet, PUMD16 pinout, PUMD16 application, or PUMD16 equivalent, key selection considerations include its dual-polarity RET configuration, guaranteed R2/R1 ratio of 2.1 (±0.5), thermal resistance of 417 K/W (per device), and compatibility with FR4 PCB reflow soldering footprints per JEDEC MO-178.

Technical Context

The PUMD16 implements two independent bipolar transistors-TR1 (NPN) and TR2 (PNP)-each with monolithically integrated base bias resistors (R1, R2) enabling direct logic-level drive without external components. Its complementary topology supports push-pull or level-shifting functions in compact digital signal paths.

Each transistor operates within absolute maximum ratings of ±50 V V_CBO/V_CEO, ±5 V V_EBO, and 100 mA I_O, with DC current gain h_FE ≥ 80 at I_C = 5 mA, V_CE = 5 V, and collector-emitter saturation voltage ≤ 150 mV at I_C = 10 mA, I_B = 0.5 mA.

Key Specifications

Pinout & Package

SOT363-3 (TSSOP6) plastic surface-mounted package with 6 leads, 1.3 mm × 2.2 mm footprint, 0.65 mm pitch, and exposed pad not present; designed for reflow soldering per JEDEC MO-178 standards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PUMH16 and PUMB16, the PUMD16 uniquely provides complementary NPN/PNP outputs in one package-enabling true push-pull operation, bidirectional level shifting, and reduced interconnect inverter stages that neither alternative supports.

Availability

PUMD16 is available at Aetrix Electronics and suitable for low-current peripheral driver, IC input control interface, and general-purpose digital switch replacement applications requiring stable component supply and long-term industrial lifecycle support.

Supply support for PUMD16 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 optimized for efficiency-critical applications across automotive, industrial, and consumer markets.

The PUMD16 belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically to reduce component count and improve reliability in digital interface and signal conditioning circuits operating at ≤100 mA.

FAQ

What is the maximum operating temperature for continuous 100 mA current per transistor?

The PUMD16 supports continuous 100 mA per transistor up to an ambient temperature of +85 °C when mounted on a standard FR4 PCB with single-sided copper, based on its per-device R_th(j-a) of 417 K/W and maximum junction temperature of 150 °C. Derating is required above this ambient due to thermal limits.

Can PUMD16 replace discrete BC847/BC857 pairs without circuit modification?

Yes-the PUMD16 uses the same SOT363-3 footprint as many dual-transistor packages and provides matching 50 V V_CEO, 100 mA I_O, and h_FE ≥ 80 specifications. Its integrated R1/R2 network eliminates four external resistors, allowing direct PCB substitution in most digital switching layouts.

How does the R2/R1 ratio affect switching behavior in logic interfaces?

The R2/R1 ratio of 2.1 (±0.5) sets the internal base current division, directly determining the transistor's effective h_FE and threshold voltage (VI(on)/VI(off)). This fixed ratio ensures consistent turn-on/off points across temperature and process variation, improving noise immunity in 3.3 V/5 V logic interfacing.

Is PUMD16 qualified for automotive applications?

No-PUMD16 is not automotive-qualified. It is specified for industrial and consumer use only, with no AEC-Q101 testing or qualification. Nexperia explicitly states in its legal disclaimers that non-automotive qualified products must not be used in safety-critical or life-support systems without additional validation by the customer.