Nexperia USA Inc. NX1029X,115

Overview

NX1029X from Nexperia is a complementary N/P-channel Trench MOSFET in SOT666 package, rated at 60 V (N-ch) / −50 V (P-ch), with continuous drain currents of 330 mA (N-ch) and −170 mA (P-ch), R_DS(on) of 1.0 Ω (N-ch @ V_GS = 10 V) and 4.5 Ω (P-ch @ V_GS = −10 V), and logic-level gate drive compatibility - used in compact loadswitch and level-shifting circuits in space-constrained portable power management.

For engineers reviewing the NX1029X datasheet, NX1029X pinout, NX1029X application, or NX1029X equivalent, this page delivers verified electrical specs, thermal derating curves, gate charge behavior, SOA boundaries, and real-world switching performance data for dual-channel discrete power control in battery-powered systems.

Technical Context

This dual-channel MOSFET integrates independent N- and P-channel devices in a single ultra-small SOT666 package, enabling complementary switching without external pairing. Each channel features trench-based silicon architecture optimized for low R_DS(on) and fast switching (t_d(on) ≤ 10 ns for N-ch, t_d(off) ≤ 96 ns for P-ch), with separate source, gate, and drain terminals routed to six distinct pins.

The device supports logic-level operation (V_GS(th) = 1.1–2.1 V for N-ch; −1.1 to −2.1 V for P-ch), includes integrated ESD protection (2 kV HBM for N-ch, 1 kV HBM for P-ch), and exhibits thermally coupled but electrically isolated junctions - allowing simultaneous high-side and low-side control in half-bridge or bidirectional switch topologies with shared thermal path.

Key Specifications

Pinout & Package

SOT666 plastic surface-mount package: 6-pin, 0.5 mm pitch, 1.6 mm × 1.2 mm × 0.55 mm body, with exposed drain pads for thermal enhancement on FR4 PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar complementary MOSFET applications.

Compared with DMN2041LSD-13 and NTJD4152PZ, the NX1029X uniquely balances 60/−50 V rating, ultra-compact SOT666 size, and logic-level drive in one die - making it the sole option for space-constrained 12–24 V loadswitches requiring <2 mm² PCB area and ≥2× voltage safety margin.

Availability

NX1029X is available at Aetrix Electronics and suitable for portable medical monitors, USB-C power delivery modules, and industrial sensor interface boards requiring stable component supply with guaranteed long-term continuity.

Supply support for NX1029X 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, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.

The NX1029X belongs to Nexperia's TrenchMOS complementary FET product line, engineered specifically for miniaturized power management in battery-operated and space-constrained electronics where dual-channel integration and thermal efficiency are critical.

FAQ

What is the maximum continuous drain current for each channel at 100 °C ambient?

At T_amb = 100 °C on FR4 PCB with standard footprint, the N-channel supports 210 mA and the P-channel supports −110 mA - derived from derating curves in Figure 2 and thermal resistance values (R_th(j-a) = 330 K/W) in Table 6, assuming T_j ≤ 150 °C.

Can NX1029X be used in a synchronous buck converter as both high-side and low-side switches?

No - the P-channel's −50 V rating and −170 mA current limit make it unsuitable as a high-side main switch in buck converters above 12 V input; however, it functions reliably as a high-side loadswitch or level shifter, while the N-channel serves as efficient low-side sync rectifier up to 60 V input.

Is the SOT666 package lead-free and RoHS-compliant?

Yes - the NX1029X SOT666 package is fully lead-free and RoHS-compliant per Nexperia's Product Change Notice PCN-2021-012, with matte tin plating and halogen-free molding compound meeting JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) requirements.

How does the ESD protection differ between N-channel and P-channel sections?

The N-channel section is rated for 2 kV HBM ESD protection, while the P-channel section is rated for 1 kV HBM - confirmed in Table 5 limiting values and validated per ANSI/ESDA/JEDEC JS-001-2017 test methodology, reflecting inherent process asymmetry in complementary trench fabrication.