Nexperia USA Inc. PUMH9/ZLF

Overview

PUMH9 from Nexperia is an NPN/NPN resistor-equipped double transistor (RET) in SOT363-3 (SC-88) package, rated for 50 V V_CEO, 100 mA output current per transistor, with integrated bias resistors R1 = 10 kΩ and R2 = 47 kΩ. It functions as a dual digital switching element for level translation and IC input control in space-constrained automotive and industrial PCBs.

For engineers reviewing the PUMH9 datasheet, PUMH9 pinout, PUMH9 application, or PUMH9 equivalent, this device serves as a drop-in replacement for discrete base-resistor transistor pairs in load switching, microcontroller I/O buffering, and logic-level interface circuits where reduced BOM count and board area are critical.

Technical Context

The PUMH9 integrates two matched NPN transistors with on-chip base bias networks-R1 connects base to input, R2 connects base to emitter-enabling single-pin digital drive without external resistors. Each transistor operates independently with open-base V_CEO = 50 V and I_O = 100 mA rating.

Its dual-transistor topology supports cascaded or parallel switching configurations; thermal resistance R_th(j-a) is 417 K/W per device on FR4 PCB, and transition frequency f_T reaches 230 MHz at I_C = 10 mA, confirming suitability for medium-speed digital switching up to ~10 MHz edge rates.

Key Specifications

Pinout & Package

SOT363-3 (TSSOP6) plastic surface-mounted package: 1.35 mm × 2.2 mm footprint, 0.65 mm pitch, 0.95 mm max height; optimized for reflow soldering with defined land pattern per Figure 12.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC847BPDW1T3G, PUMH9 reduces PCB area by 25% and assembly steps by eliminating four passive placements; versus PUMD9, it maintains identical footprint and bias network but delivers dual-sourcing capability essential for active-high control architectures.

Availability

PUMH9 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and consumer appliance control boards requiring stable component supply and long-term manufacturability.

Supply support for PUMH9 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 logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

PUMH9 belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically to replace discrete transistor-resistor combinations in digital switching applications while maintaining AEC-Q101 stress test compatibility.

FAQ

What is the maximum continuous current per transistor in PUMH9?

The PUMH9 supports 100 mA continuous DC output current per transistor under T_amb ≤ 25 °C with standard FR4 PCB mounting. Derating applies above 25 °C per the 417 K/W thermal resistance curve; at 85 °C ambient, maximum usable current drops to approximately 65 mA to maintain T_j ≤ 150 °C.

Can PUMH9 be used in 5 V logic interfacing without external components?

Yes - with R1 = 10 kΩ and VI(on) = 0.8–1.4 V (typical), PUMH9 turns on fully with standard 5 V CMOS or TTL outputs. The integrated bias network eliminates external base resistors, enabling direct connection to microcontroller GPIO pins while guaranteeing V_CE(sat) ≤ 100 mV at I_C = 5 mA.

How does PUMH9 differ from PUMB9 and PUMD9?

PUMH9 is NPN/NPN; PUMB9 is its PNP/PNP complement; PUMD9 is NPN/PNP. All share identical SOT363-3 packaging and resistor values (R1 = 10 kΩ, R2 = 47 kΩ), but differ in transistor polarity - making them non-interchangeable in circuits requiring specific sourcing/sinking behavior or complementary output stages.

Is PUMH9 qualified for automotive applications?

PUMH9 is not AEC-Q101 qualified per Nexperia's official documentation. While its 150 °C junction rating and 50 V V_CEO support under-hood temperature ranges, it is designated for industrial and consumer use. For automotive body electronics, Nexperia recommends verifying qualification status via their official portal before design-in.