Nexperia USA Inc. NHUMD9X

Overview

NHUMD9X 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 switching and IC input control in automotive body electronics.

For engineers reviewing the NHUMD9X datasheet, NHUMD9X pinout, NHUMD9X application, or NHUMD9X equivalent, this page provides verified pin functions, thermal resistance (358 K/W device-level), on-state input voltage (1.6 V typ. at IC = 10 mA), off-state input voltage (690 mV typ.), and confirmed alternatives for NPN/PNP dual RET replacement in space-constrained digital logic interfaces.

Technical Context

The NHUMD9X implements a monolithic dual-transistor structure with integrated base biasing: TR1 is an NPN transistor with 10 kΩ input resistor (R1) and 47 kΩ feedback resistor (R2); TR2 is a complementary PNP transistor sharing the same R2 value but optimized for negative-polarity operation. Both transistors feature 80 V VCEO rating and 100 mA continuous output current capability under Tj ≤ 150 °C.

Its internal resistor network enables direct TTL/CMOS-level drive without external base resistors - VI(on) = 1.6 V (typ.) and VI(off) = 690 mV (typ.) at VCE = 5 V / 0.3 V conditions confirm robust noise margin and low-power switching behavior. The device is qualified per AEC-Q101 for automotive use and exhibits fT = 170 MHz (TR1) and 150 MHz (TR2) at VCE = ±5 V, IC = 10 mA.

Key Specifications

Pinout & Package

SOT363 (SC-88) 6-pin surface-mount plastic package, 2.2 mm × 1.35 mm footprint, 0.95 mm max height, designed for reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NHUMD13 and NHUMH9, NHUMD9X offers optimal balance of noise immunity (690 mV VI(off)), drive strength (1.6 V VI(on)), and compatibility with mainstream 3.3 V microcontrollers - making it the preferred choice for mixed-signal digital interface consolidation.

Availability

NHUMD9X is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, consumer appliance control boards, and medical diagnostic equipment interfaces requiring stable component supply and AEC-Q101 compliance.

Supply support for NHUMD9X 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 discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.

NHUMD9X belongs to the NHUMD10/13/9 series of resistor-equipped transistors engineered specifically for space-constrained digital switching in automotive and industrial control systems - emphasizing BOM reduction, AEC-Q101 compliance, and simplified PCB layout.

FAQ

What is the maximum operating junction temperature for NHUMD9X?

The absolute maximum junction temperature (Tj) is 150 °C, validated per AEC-Q101 stress testing. At Tamb = 25 °C on standard FR4 PCB, the device supports 350 mW total power dissipation before thermal derating begins - corresponding to ~100 mA continuous current per transistor with VCE(sat) ≤ 100 mV.

Can NHUMD9X replace BC846/BC856 transistor pairs in existing designs?

Yes - NHUMD9X replaces one BC846 (NPN) and one BC856 (PNP) plus four external bias resistors. Its pinout differs (SOT363 vs. SOT23), so PCB layout must be updated, but logic-level compatibility (VI(on)/VI(off) specs) and 80 V/100 mA ratings ensure functional equivalence in digital switching roles.

Is NHUMD9X suitable for analog amplifier applications?

No - NHUMD9X is optimized for digital switching, not linear amplification. Its built-in resistors fix bias points, and hFE variation (100 min) and lack of guaranteed small-signal parameters make it unsuitable for analog gain stages. Use dedicated general-purpose transistors like BC847 or PBSS4041 for amplification.

What is the marking code for NHUMD9X on the package?

The top-side marking is "6N%" where "%" is a placeholder for the manufacturing site code (e.g., "6N1", "6N2"). This matches Nexperia's official marking specification in Table 5 of the datasheet and distinguishes NHUMD9X from NHUMD10 ("6P%") and NHUMD13 ("6R%").