Nexperia USA Inc. NHUMD9F

Overview

NHUMD9 from Nexperia is an AEC-Q101-qualified resistor-equipped double transistor (RET) in SOT363 (SC-88) package, integrating one NPN and one PNP silicon transistor with built-in bias resistors (R1 = 10 kΩ, R2 = 47 kΩ). It delivers 100 mA output current per transistor, supports 80 V collector-emitter breakdown voltage, and operates across −55 °C to +150 °C ambient range - used for digital load switching and IC input control in automotive body electronics.

For engineers reviewing the NHUMD9 datasheet, NHUMD9 pinout, NHUMD9 application, or NHUMD9 equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and switching parameters, and real-world substitution guidance - all derived from Nexperia's official Rev. 1 product data sheet dated 24 July 2020.

Technical Context

This dual-transistor device implements a monolithic NPN/PNP pair with integrated base bias networks: TR1 (NPN) features R1 = 10 kΩ and R2 = 47 kΩ, while TR2 (PNP) shares the same R2 value but uses the same R1 topology for complementary drive. The structure eliminates external base resistors, enabling direct logic-level interfacing without discrete pull-up/down components.

Each transistor operates independently with separate emitter-ground terminals (Pin 1 and Pin 4), collector outputs (Pin 6 and Pin 3), and base inputs (Pin 2 and Pin 5). The device sustains 80 V V_CEO, achieves 170 MHz f_T (TR1) and 150 MHz f_T (TR2), and maintains <230 µA I_EBO at V_EB = 7 V - confirming robust off-state leakage control for high-reliability digital switching.

Key Specifications

Pinout & Package

SOT363 (SC-88) 6-pin surface-mount plastic package: 2.2 mm × 1.35 mm footprint, 0.65 mm pitch, 0.95 mm max height, designed for reflow soldering on FR4 PCBs with standard stencil-defined solder paste volume.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NHUMD10 and NHUMD13, NHUMD9's higher R1 (10 kΩ) reduces input current draw by >50%, extends battery life in always-on nodes, and improves noise margin in high-impedance environments - making it optimal for 5 V automotive subsystems requiring low quiescent power.

Availability

NHUMD9 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, consumer appliance power sequencing, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for NHUMD9 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 optimized for automotive, industrial, and mobile applications.

NHUMD9 belongs to the NHUMD10/13/9 series of resistor-equipped double transistors, engineered specifically to replace legacy BC846/BC856 pairs in cost- and space-constrained digital switching applications while meeting AEC-Q101 requirements.

FAQ

What is the maximum continuous collector current per transistor in NHUMD9?

The NHUMD9 supports 100 mA continuous output current per transistor (I_O) at T_amb ≤ 25 °C with derating above that temperature. This rating is validated per IEC 60134 limiting values and confirmed in Table 2 and Table 6 of the official datasheet. At 100 °C ambient, usable current drops to approximately 65 mA due to thermal resistance (R_th(j-a) = 358 K/W per device).

Can NHUMD9 be used as a direct replacement for BC846B/BC856B in existing designs?

Yes - NHUMD9 replaces BC846B (NPN) and BC856B (PNP) in digital switching roles, but requires no external base resistors due to its integrated 10 kΩ/47 kΩ network. Pin compatibility is not identical (SOT363 vs. SOT23), so PCB layout revision is needed; however, functional equivalence is confirmed in Section 3 ("Applications") of the datasheet as a "cost saving alternative".

What is the significance of the R2/R1 ratio being 4.7 in NHUMD9?

The R2/R1 = 4.7 ratio sets the base bias network's current division, ensuring stable saturation under varying V_CC and temperature. With R1 = 10 kΩ and R2 = 47 kΩ, the device achieves VI(on) = 690 mV (typ.) and VI(off) = 500 mV (max), providing robust noise immunity against 5 V logic rail fluctuations and enabling reliable operation down to 3.0 V supply.

Is NHUMD9 suitable for PWM-driven LED dimming applications?

Yes - NHUMD9 supports PWM frequencies up to 50 kHz with minimal switching loss, thanks to its 170 MHz f_T (TR1), 150 MHz f_T (TR2), and <100 mV V_CE(sat). Its 100 mA rating handles typical indicator LEDs (20–30 mA), and the integrated resistors eliminate timing skew between channels, enabling synchronized dual-color LED control in automotive interior lighting.