Nexperia USA Inc. PEMD16,115

Overview

PEMD16 from Nexperia is a resistor-equipped double transistor (RET) integrating one NPN and one PNP silicon bipolar transistor with built-in bias resistors (R1 = 22 kΩ, R2 = 47 kΩ) in a single SOT666 package. It supports 50 V V_CEO, 100 mA output current per transistor, and operates across –65 °C to +150 °C ambient temperature - used for digital signal level shifting and dual-polarity peripheral interfacing in space-constrained logic control circuits.

For engineers reviewing the PEMD16 datasheet, PEMD16 pinout, PEMD16 application, or PEMD16 equivalent, this device serves as a compact, pre-biased replacement for discrete NPN+PNP pairs in low-current switching, IC input conditioning, and bidirectional interface buffering where PCB area and assembly cost are critical.

Technical Context

The PEMD16 implements two independent, internally biased transistors: TR1 (NPN) with base driven through R1–R2 network referenced to GND1, and TR2 (PNP) with base driven through an identical R1–R2 network referenced to GND2. Each transistor features defined VI(on)/VI(off) thresholds (e.g., TR1 VI(on) = 1.1 V typ at IC = 2 mA), enabling reliable digital-level switching without external bias components.

Thermal design is constrained by per-device P_tot = 300 mW at T_amb ≤ 25 °C on FR4 PCB, with R_th(j-a) = 417 K/W. The SOT666 package's 0.5 mm pitch and 1.6 mm × 1.2 mm footprint support high-density routing while maintaining isolation between complementary transistor sections.

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, designed for reflow soldering only on FR4 PCBs with standardized footprint per Figure 12.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PEMH16 and PEMB16, the PEMD16 uniquely delivers asymmetric NPN/PNP pairing in one package - enabling true complementary output generation, rail-to-rail logic translation, and reduced interconnect inverter chains that neither NPN-only nor PNP-only RETs can replicate.

Availability

PEMD16 is available at Aetrix Electronics and suitable for low-current peripheral driver, IC input control interface, and logic-level translation applications requiring stable component supply, long-term manufacturability, and consistent parametric performance across production lots.

Supply support for PEMD16 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 leading global semiconductor expert in discrete, logic, and MOSFET devices, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe and a focus on reliability, efficiency, and miniaturization.

The PEMD16 belongs to Nexperia's Resistor-Equipped Transistor (RET) product line - engineered specifically to replace discrete transistor-resistor combinations in digital interface and signal conditioning circuits while maintaining JEDEC-compliant robustness and AEC-Q200-aligned process controls.

FAQ

What is the maximum allowable input voltage at I1 and I2 pins?

The absolute maximum input voltage at I1 (TR1 base) is +40 V (positive) and –7 V (negative); at I2 (TR2 base) it is +7 V (positive) and –40 V (negative). These limits derive from the internal R1–R2 network's voltage division and transistor junction ratings - exceeding them risks irreversible resistor degradation or base-emitter junction breakdown.

Can PEMD16 be used in analog amplifier configurations?

No - the PEMD16 is not characterized or guaranteed for linear-mode operation. Its h_FE and V_CE(sat) parameters are specified only under switching conditions (V_CE = 0.3 V or 5 V), and the integrated resistors prevent stable DC bias point adjustment required for amplification.

Is the SOT666 package lead-free and RoHS compliant?

Yes - the PEMD16 uses 100% matte tin (Sn) lead finish on copper alloy leads, meets RoHS Directive 2011/65/EU Annex II requirements, and is rated for lead-free reflow soldering per J-STD-020D.3 with peak temperature up to 260 °C.

How does thermal coupling between TR1 and TR2 affect performance?

TR1 and TR2 share a common die substrate in the SOT666 package, resulting in thermal coupling that causes mutual junction temperature rise. Under simultaneous 100 mA conduction, total P_tot = 300 mW raises junction temperature ~125 °C above ambient - requiring derating to 70 mA per transistor if ambient exceeds 50 °C to maintain T_j ≤ 150 °C.