Nexperia USA Inc. PEMH11,115

Overview

PEMH11 from Nexperia is an NPN/NPN resistor-equipped double transistor (RET) in SOT666 package, rated for 50 V V_CEO, 100 mA output current per transistor, with integrated 10 kΩ input bias resistors (R1 = R2 = 10 kΩ). It functions as a dual digital switching element for low-current logic interfacing and peripheral control in space-constrained PCBs.

For engineers reviewing the PEMH11 datasheet, PEMH11 pinout, PEMH11 application, or PEMH11 equivalent, this device is selected for compact dual-transistor logic-level signal translation where built-in biasing eliminates external resistors, reduces BOM count, and supports high-density SMT assembly on FR4 boards.

Technical Context

The PEMH11 integrates two matched NPN transistors with monolithically embedded base bias networks-each with R1 = 10 kΩ (input resistor) and R2 = 10 kΩ (feedback resistor), yielding R2/R1 = 1.0 ±0.2. Its dual-emitter-grounded topology enables independent control of each transistor's base via dedicated inputs (I1, I2) and collector outputs (O1, O2).

Designed for digital switching-not linear amplification-it exhibits VI(on) = 1.8–2.5 V and VI(off) = 0.8–1.1 V at 25 °C, ensuring robust noise margin in 3.3 V and 5 V logic systems. Thermal resistance is 417 K/W (per device, FR4 PCB), supporting continuous operation up to 150 °C junction temperature.

Key Specifications

Pinout & Package

SOT666 is a 6-pin, ultra-small flat-lead surface-mount plastic package measuring 1.6 mm × 1.2 mm × 0.55 mm, with 0.5 mm pitch and single-sided FR4 mounting compatibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PEMD3 and PEMB11, the PEMH11 uniquely supports dual low-side switching with matched NPN characteristics-making it optimal for sink-driven logic interfacing, whereas alternatives serve complementary sourcing roles requiring different PCB layout and biasing strategy.

Availability

PEMH11 is available at Aetrix Electronics and suitable for LED driver interfaces, microcontroller GPIO expansion, industrial digital input conditioning, and USB-C port power control requiring stable component supply and long-term production continuity.

Supply support for PEMH11 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-including logic, discretes, MOSFETs, and ESD protection devices.

The PEMH11 belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically for reducing passive count and improving layout efficiency in digital interface and peripheral driver circuits.

FAQ

What is the maximum allowable continuous current per channel?

The PEMH11 supports 100 mA DC output current per transistor under recommended operating conditions (T_amb ≤ 85 °C, FR4 PCB). At 100 mA and typical V_CE(sat) of 150 mV, power dissipation per channel is 15 mW-well within the 300 mW per-device limit. Derating is required above 85 °C ambient per the published power derating curve.

Can PEMH11 be used in analog amplifier configurations?

No-the PEMH11 is not characterized or specified for linear amplification. Its h_FE is guaranteed only at switching test points (e.g., V_CE = 5 V, I_C = 5 mA), and its built-in resistors fix base biasing for digital on/off operation. Analog use would result in unpredictable gain, distortion, and thermal instability due to lack of bias adjustability.

Is the SOT666 package compatible with standard reflow soldering profiles?

Yes-Nexperia specifies reflow soldering as the only recommended method for SOT666. The package supports JEDEC J-STD-020-compliant lead-free reflow profiles, with peak temperature ≤ 260 °C and time above liquidus ≤ 60 seconds. Footprint dimensions and solder paste stencil recommendations are provided in Figure 11 of the datasheet.

How does the R2/R1 ratio affect switching behavior?

The R2/R1 ratio of 1.0 ±0.2 sets the internal feedback factor that stabilizes base current during saturation. A ratio near unity ensures predictable VI(on) and VI(off) thresholds across temperature and process variation-critical for noise immunity in industrial environments. Deviations outside 0.8–1.2 may cause inconsistent turn-on timing or increased leakage in off-state.