Nexperia USA Inc. PUMH2/DG/B4X

Overview

PUMH2/DG/B4X from Nexperia is an NPN/NPN dual resistor-equipped transistor (RET) in SOT363 (SC-88) package, designed for digital logic interface and low-current peripheral driving. It integrates two matched NPN transistors with built-in bias resistors (R1 = R2 = 47 kΩ), supports 100 mA output current per transistor, operates up to 50 V V_CEO, and is AEC-Q101 qualified for automotive use.

For engineers reviewing the PUMH2/DG/B4X datasheet, PUMH2/DG/B4X pinout, PUMH2/DG/B4X application, or PUMH2/DG/B4X equivalent, this device serves as a space- and BOM-optimized replacement for discrete transistor pairs in level-shifting, LED multiplexing, and microcontroller I/O expansion circuits where input biasing and thermal stability are critical.

Technical Context

The PUMH2/DG/B4X implements two independent NPN transistors with integrated base-emitter pull-down and base-input current-limiting resistors (R1 = 47 kΩ, R2/R1 = 1.0). Each transistor delivers DC current gain (h_FE) ≥80 at I_C = 5 mA and V_CE = 5 V, with V_CE(sat) ≤150 mV at I_C = 10 mA / I_B = 0.5 mA.

It features thermally coupled die construction in a single SOT363 package, enabling matched switching behavior across temperature (−65 °C to +150 °C ambient), and supports reflow-only soldering per JEDEC J-STD-020. Its 2.2 mm × 1.35 mm footprint targets high-density PCB layouts in automotive body control modules and industrial sensor interfaces.

Key Specifications

Pinout & Package

SOT363 (SC-88) surface-mount plastic package: 2.2 mm × 1.35 mm × 0.95 mm body, 0.65 mm lead pitch, 6-terminal configuration with exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSVD2N2369MUTBG and EMX23T2R, PUMH2/DG/B4X offers optimal balance of automotive qualification, 47 kΩ biasing for standard logic compatibility, and thermal performance in compact SC-88 packaging-making it the default choice for cost-sensitive, space-constrained automotive and industrial digital I/O designs.

Availability

PUMH2/DG/B4X is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input conditioning, and consumer appliance LED driver circuits requiring stable component supply and long-term lifecycle support.

Supply support for PUMH2/DG/B4X 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 leader in high-volume discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and headquartered in Nijmegen, Netherlands.

The PUMH2/DG/B4X belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically to replace discrete transistor-resistor combinations in automotive, industrial, and computing applications where miniaturization and BOM simplification are critical.

FAQ

What is the maximum junction temperature and thermal resistance for PUMH2/DG/B4X?

The absolute maximum junction temperature (T_j) is 150 °C. When mounted on an FR4 PCB with standard footprint, its per-device thermal resistance from junction to ambient (R_th(j-a)) is 417 K/W. This value assumes reflow-soldered mounting and defines safe continuous power dissipation limits under natural convection conditions.

Can PUMH2/DG/B4X be used in 5 V logic systems with 3.3 V microcontrollers?

Yes. With VI(on) = 1.6 V (typical) and VI(off) = 1.2 V (typical), the device reliably switches on with 3.3 V GPIO outputs and remains off with 0 V or floating inputs. Its 47 kΩ integrated base resistors provide appropriate current limiting for both 3.3 V and 5 V logic families without external components.

Is there a PNP/PNP or NPN/PNP complement to PUMH2/DG/B4X in the same package?

Yes. The PUMD12 is the PNP/PNP complement in SOT363, and the PUMB2 is the NPN/PNP complement in the same ultra-small SC-88 package. These share identical pinout, thermal characteristics, and AEC-Q101 qualification, enabling consistent layout reuse across complementary switching topologies.

Does PUMH2/DG/B4X require special PCB layout considerations for thermal performance?

No dedicated thermal pad is required, but optimal thermal performance demands adherence to Nexperia's recommended SOT363 reflow footprint (2.65 mm × 2.35 mm solder land pattern) and use of 1 oz copper on the component layer. Avoid thermal relief on pins 1 and 4 (GND) to maximize heat conduction to the ground plane.