onsemi NST1601CLTWG

Overview

NST1601CLTWG from onsemi is a PNP bipolar junction transistor optimized for high-current, low-saturation-voltage switching in automotive and industrial power control circuits. It delivers −160 V V_CEO, −1.5 A continuous I_C, 0.08 V typical V_CE(sat) at −250 mA/−25 mA drive, and operates up to 175 °C junction temperature. It is used in load switch and gate driver buffer stages where fast turn-on (50 ns) and robust thermal performance are required.

For engineers reviewing the NST1601CLTWG datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, LFPAK8 package layout, AEC−Q101 qualification status, safe operating area curves, and validated alternative parts for automotive-grade discrete selection.

Technical Context

This device is a single PNP BJT with complementary pairing to NST1602CL, designed for high-efficiency DC–DC converter output stages and high-side load switching. Its thin-profile LFPAK8 package enables improved thermal resistance over SO-8 and TO-220 variants while maintaining high allowable power dissipation (2.2 W on 1 in² copper).

The transistor features low V_CE(sat) across wide current range (−0.06 V to −0.2 V), high h_FE (140–280 at −100 mA), and 87 MHz f_T, supporting high-speed switching in gate driver buffers and PWM-controlled power rails without external snubbing.

Key Specifications

Pinout & Package

Package: LFPAK8 (Case 760AD), 3.3 mm × 3.3 mm × 0.9 mm, Pb-free/halogen-free, thermally enhanced surface-mount package with exposed drain pad (pin 5–8 connected internally to collector).

Key Features

Applications

Equivalent & Alternatives

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

Compared with NST1601CLTWG, NSVT1601CLTWG adds PPAP readiness without electrical trade-offs, while ZXTN2012ZTA trades current capacity and qualification for wider voltage headroom in non-automotive contexts - both require layout review due to differing packages and thermal paths.

Availability

NST1601CLTWG is available at Aetrix Electronics and suitable for automotive load switching, gate driver buffering, and DC–DC converter output stages requiring stable component supply, AEC−Q101 compliance, and high-temperature operation.

Supply support for NST1601CLTWG 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

onsemi is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The NST1601CLTWG belongs to onsemi's Automotive-Grade Bipolar Transistor family, engineered specifically for high-reliability power switching in harsh-environment electronic control units and power management subsystems.

FAQ

What is the maximum continuous collector current rating for NST1601CLTWG?

The NST1601CLTWG has a maximum continuous collector current (I_C) rating of −1.5 A at T_a = 25 °C with appropriate PCB copper area. Derating applies above 25 °C ambient, dropping to zero at 175 °C junction temperature. The device also supports −2.5 A pulsed current (I_CP) with duty cycle limitations defined in the Safe Operating Area chart.

Is NST1601CLTWG qualified for automotive applications?

Yes, NST1601CLTWG is AEC−Q101 qualified and PPAP capable, meeting the stress test requirements for automotive discrete transistors. This qualification covers temperature cycling, humidity testing, mechanical shock, and high-temperature reverse bias - confirming suitability for engine control, body electronics, and ADAS power stages.

What package type does NST1601CLTWG use, and how is thermal performance achieved?

NST1601CLTWG uses the LFPAK8 (Case 760AD) package - a 3.3 mm × 3.3 mm surface-mount outline with an exposed collector pad (pins 5–8). Thermal performance relies on direct soldering of the collector pad to a large copper area (1 in² recommended), enabling 2.2 W power dissipation without a heatsink - significantly better than SO-8 or SOT-223 alternatives.

How does NST1601CLTWG compare to its complementary NPN counterpart NST1602CL?

NST1601CLTWG is the PNP complement to the NPN NST1602CL, sharing identical LFPAK8 packaging, voltage ratings (−160 V V_CEO / +160 V V_CEO), and thermal specifications. Both devices feature matched low saturation voltages and high-speed switching, enabling symmetrical push-pull or H-bridge driver designs with consistent timing and loss characteristics.

What is the typical V_CE(sat) of NST1601CLTWG under common operating conditions?

The typical V_CE(sat) of NST1601CLTWG is −0.08 V at I_C = −250 mA and I_B = −25 mA, and −0.1 V at I_C = −500 mA and I_B = −50 mA. These values reflect actual measured performance under standard test conditions and enable efficient operation in load switch and gate driver applications where conduction loss must be minimized.