Nexperia USA Inc. NHUMB11X

Overview

NHUMB11 from Nexperia is a resistor-equipped double PNP transistor (RET) in SOT363 (SC-88) package, designed for digital switching and IC input control. It features dual 80 V V_CEO, 100 mA per transistor output current, built-in 10 kΩ base resistors (R1 = R2), and AEC-Q101 qualification for automotive-grade reliability.

For engineers reviewing the NHUMB11 datasheet, NHUMB11 pinout, NHUMB11 application, or NHUMB11 equivalent, this device serves as a space- and cost-optimized replacement for discrete BC856-based driver stages in low-power digital logic interfacing, load switching, and microcontroller I/O buffering circuits.

Technical Context

This dual PNP RET integrates two matched PNP transistors with monolithically embedded bias resistors-R1 (10 kΩ) connected between base and emitter, and R2 (10 kΩ) between base and input-enabling direct TTL/CMOS-level drive without external components. Each transistor operates independently with open-base V_CEO = −80 V and I_O = −100 mA rating.

The device uses standard SOT363 leadframe construction with thermal resistance R_th(j-a) = 358 K/W (per device on FR4 PCB), supports −55 °C to +150 °C ambient operation, and delivers h_FE ≥ 50 at V_CE = −5 V, I_C = −10 mA-optimized for saturated switching rather than linear amplification.

Key Specifications

Pinout & Package

SOT363 (SC-88) surface-mount plastic package: 6-pin, 2.2 mm × 1.35 mm footprint, 0.65 mm pitch, 0.95 mm max height; optimized for high-density PCB layouts and reflow soldering.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NHUMH11, NHUMB11 provides matched dual-PNP switching in one package, while BC856B requires external biasing and offers higher h_FE but lower breakdown voltage-making NHUMB11 optimal for compact, production-optimized digital interface designs.

Availability

NHUMB11 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output modules, and consumer appliance control panels requiring stable component supply and AEC-Q101 compliance.

Supply support for NHUMB11 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 packaging.

The NHUMB11 belongs to Nexperia's resistor-equipped transistor (RET) product line-engineered specifically to reduce bill-of-materials and PCB area in digital switching applications across automotive, industrial, and consumer markets.

FAQ

What is the maximum continuous current per transistor in NHUMB11?

The NHUMB11 supports −100 mA continuous output current per transistor at T_amb ≤ 25 °C, derated linearly above that temperature per the 350 mW per-device power dissipation limit. At 75 °C ambient, usable current drops to approximately −70 mA to maintain safe junction temperature below 150 °C.

Can NHUMB11 replace BC856-based circuits without layout changes?

Yes-NHUMB11's SOT363 footprint matches the pinout of dual discrete BC856 implementations when used in common-emitter switching configurations. However, its integrated 10 kΩ resistors fix the base bias ratio, so existing pull-up/pull-down networks must be removed to avoid conflict and ensure correct logic thresholds.

Is NHUMB11 suitable for linear amplifier applications?

No-NHUMB11 is characterized and qualified exclusively for switching operation. Its h_FE is specified only at V_CE = −5 V and I_C = −10 mA (saturation region), and no linearity, noise, or frequency response data is provided for analog gain use. It must not be used in linear amplifier topologies.

How does the built-in resistor network affect input voltage thresholds?

The 10 kΩ R1–R2 divider sets VI(on) ≈ −1.8 V and VI(off) ≈ −0.8 V at I_C = −10 mA, enabling direct interface with 3.3 V and 5 V logic families. Input voltage tolerance is −40 V to +10 V, but functional switching occurs only within the −1.15 V to −0.8 V off-state and −2.5 V to −1.8 V on-state windows per datasheet Figure 5 and 6.