Nexperia USA Inc. PEMT1,315

Overview

PEMT1 from Nexperia is a PNP/PNP general-purpose double transistor in a SOT666 surface-mount package, designed for compact dual-transistor switching and amplification. It delivers V_CEO = −40 V, I_C = −100 mA per transistor, h_FE = 120 (at V_CE = −6 V, I_C = −1 mA), and total P_tot = 300 mW. It replaces two discrete SC-75/SC-89 transistors on the same PCB area.

For engineers reviewing the PEMT1 datasheet, PEMT1 pinout, PEMT1 application, or PEMT1 equivalent, key selection criteria include dual PNP topology, ultra-small 1.6 × 1.2 mm footprint, self-aligning straight leads, junction temperature rating up to 150 °C, and reflow-soldering compatibility per JEDEC standards.

Technical Context

The PEMT1 integrates two matched PNP bipolar junction transistors in a single ultra-thin SOT666 package with shared thermal path and symmetrical pinning. Its design enables space-constrained dual-switching functions without cross-coupling, supporting independent biasing of TR1 and TR2 via dedicated emitter-base-collector terminals.

It operates within ambient temperatures from −65 °C to +150 °C, with R_th(j-a) = 416 K/W on FR4 PCB, and supports pulsed operation up to I_CM = −200 mA and f_T = 100 MHz at V_CE = −12 V, I_C = −2 mA - confirming suitability for medium-speed switching and low-noise amplification.

Key Specifications

Pinout & Package

SOT666 is a 6-lead, 0.5 mm pitch, ultra-thin plastic SMD package measuring 1.6 × 1.2 × 0.55 mm, optimized for automated placement and reflow soldering with self-alignment capability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-PNP switching applications.

Compared with PEMX1 and MBT3906DW1T1G, PEMT1 offers superior gain consistency (h_FE ≥ 120), smallest PCB footprint (1.6 × 1.2 mm), and optimized thermal resistance - making it preferred for space- and performance-critical dual-PNP switching where polarity matches system architecture.

Availability

PEMT1 is available at Aetrix Electronics and suitable for LED driver circuits, level-shifting interfaces, and power sequencing control requiring stable component supply and long-term production continuity.

Supply support for PEMT1 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 for automotive, industrial, and consumer applications.

The PEMT1 belongs to Nexperia's general-purpose bipolar transistor product line, engineered specifically for miniaturized dual-transistor functions in space-constrained consumer and portable electronics.

FAQ

What is the maximum allowable junction temperature for PEMT1?

The absolute maximum junction temperature (T_j) for PEMT1 is 150 °C, as defined in the Absolute Maximum Ratings table. Operation above this value risks permanent device degradation. Thermal design must ensure that power dissipation and ambient conditions keep T_j within this limit, especially under sustained 300 mW total load on FR4 PCB.

Can PEMT1 be used in linear amplification mode?

Yes - PEMT1 supports linear operation with verified h_FE ≥ 120 at V_CE = −6 V and I_C = −1 mA, and exhibits low V_CE(sat) (≤ −200 mV) and C_c = 2.2 pF. Its f_T = 100 MHz and low noise characteristics make it suitable for low-gain preamplifier stages in portable sensor interfaces.

Is PEMT1 automotive qualified?

No - PEMT1 is explicitly marked as non-automotive qualified in the revision history and legal disclaimers. It has not undergone AEC-Q101 stress testing or qualification for automotive environments. For automotive use, engineers must select Nexperia's designated automotive-grade equivalents with full qualification documentation.

What is the recommended soldering profile for PEMT1?

Nexperia specifies reflow soldering as the only recommended method for PEMT1. The SOT666 package requires JEDEC J-STD-020-compliant profiles with peak temperature ≤ 260 °C, ramp rate ≤ 3 °C/s, and time above liquidus (TAL) of 60–150 s. Hand soldering is not advised due to thermal stress sensitivity and fine-pitch lead geometry.