Nexperia USA Inc. PEMH2,315

Overview

PEMH2 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 built-in bias resistors R1 = R2 = 47 kΩ. It functions as a dual digital switching element in compact logic interface and peripheral driver circuits.

For engineers reviewing the PEMH2 datasheet, PEMH2 pinout, PEMH2 application, or PEMH2 equivalent, this device is selected for low-current digital signal translation where reduced BOM count, simplified base drive, and ultra-small footprint are critical - especially in space-constrained consumer and industrial control PCBs.

Technical Context

The PEMH2 integrates two matched NPN transistors with monolithically embedded base bias resistors (R1 and R2), eliminating external pull-up/down components. Each transistor operates independently with open-base V_CEO = 50 V and I_O = 100 mA rating.

Its internal resistor ratio R2/R1 = 1.0 ± 0.2 enables predictable saturation behavior under standard TTL/CMOS logic drive levels. The SOT666 package supports reflow-only assembly and delivers R_th(j-a) = 417 K/W (per device) on FR4 PCB.

Key Specifications

Pinout & Package

SOT666 plastic surface-mount package: 6-lead, 0.5 mm pitch, 1.6 mm × 1.2 mm × 0.55 mm body height. Ultra-flat profile optimized for high-density routing and automated placement.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PEMD12 and PEMB2, PEMH2 uniquely supports dual NPN low-side switching with 3.3 V–5 V logic compatibility, lowest V_CE(sat), and tightest R1/R2 matching - making it optimal for new compact digital interface designs.

Availability

PEMH2 is available at Aetrix Electronics and suitable for LED indicator drivers, microcontroller GPIO expansion, logic-level signal inversion, and low-power sensor interface applications requiring stable component supply and long-term production continuity.

Supply support for PEMH2 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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.

PEMH2 belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically to reduce component count and simplify digital interface design in space- and cost-sensitive applications.

FAQ

Is PEMH2 suitable for 3.3 V logic interfacing?

Yes. PEMH2's VI(on) range (1.6–3.0 V) and VI(off) range (0.8–1.2 V) ensure robust switching with standard 3.3 V CMOS outputs. Its 47 kΩ input resistors draw only ~70 μA at 3.3 V, well within typical GPIO sink capabilities.

Can PEMH2 replace two separate BC847BL transistors?

Yes - with qualification. PEMH2 integrates bias resistors and matches transistor characteristics, but lacks independent emitter connections. It replaces two BC847BL + four 47 kΩ resistors in low-side switch applications where shared GND returns are acceptable.

What is the maximum ambient temperature for continuous 100 mA operation per channel?

At 100 mA per channel (200 mA total device current), power dissipation reaches ~200 mW. With R_th(j-a) = 417 K/W, junction temperature rises ~84 K above ambient. Thus, max continuous T_amb is 66 °C to stay below 150 °C T_j.

Does PEMH2 support PWM dimming of LEDs at 1 kHz?

Yes. With f_T = 230 MHz and V_CE(sat) < 150 mV, PEMH2 fully supports 1 kHz PWM switching. Rise/fall times are sub-10 ns (typical), ensuring minimal duty-cycle distortion and low switching loss in LED driver stages.