STMicroelectronics 2STN2360

Overview

2STF2360 from STMicroelectronics is a PNP bipolar power transistor fabricated using PB-HDC (Power Bipolar High-Density Current) technology, designed for low-voltage fast-switching applications. It delivers V_CE(sat) = –320 mV at I_C = –3 A / I_B = –150 mA, h_FE = 160–400 at I_C = –100 mA to –1 A, and f_T = 130 MHz, enabling efficient relay drive and LED current control in compact DC-DC and emergency lighting circuits.

For engineers reviewing the 2STF2360 datasheet, 2STF2360 pinout, 2STF2360 application, or 2STF2360 equivalent, key selection criteria include verified PNP polarity, SOT-89 thermal resistance (R_thJA = 89 °C/W), low saturation voltage under high-current switching, and compatibility with 5 V/3.3 V base-drive logic in industrial control modules.

Technical Context

This device operates as a medium-power PNP switch with fully characterized resistive-load switching performance: t_d/t_r/t_s/t_f = 10/75/250/35 ns at I_C = –3 A, V_CC = –10 V, and symmetric ±300 mA base drive. Its PB-HDC process enables simultaneous high h_FE and low V_CE(sat), distinguishing it from conventional planar PNP transistors.

The SOT-89 package provides direct thermal path to PCB copper, supporting continuous I_C = –3 A with proper layout. Absolute ratings confirm robustness: V_CEO = –60 V, T_J(max) = 150 °C, and ESD tolerance per ECOPACK® compliance-critical for relay coil suppression and LED string current regulation.

Key Specifications

Pinout & Package

SOT-89 package with three terminals: emitter (pin 1), base (pin 2), collector (pin 3). Mounting requires soldering pin 3 (collector tab) directly to PCB copper for thermal conduction. Pin 1 is identified by the lead chamfer or notch orientation per Figure 10 in DocID13309 Rev 6.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MBT3906DW1T1G and PN3565, the 2STF2360 uniquely combines 3 A current rating, sub-350 mV saturation, and SOT-89 thermal performance-making it the sole option for production-grade 2–3 A PNP switching in thermally constrained industrial PCBs.

Availability

2STF2360 is available at Aetrix Electronics and suitable for emergency lighting systems, LED driver modules, and relay-based industrial control panels requiring stable component supply and long-term manufacturing continuity.

Supply support for 2STF2360 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

The 2STF2360 belongs to ST's "Low-Voltage Power Bipolar" product line, engineered specifically for high-efficiency, high-reliability discrete switching in space- and thermally-constrained DC power stages.

FAQ

Is the 2STF2360 pin-compatible with other SOT-89 PNP transistors?

No-pin order is emitter (1), base (2), collector (3) with collector tab as pin 3. This differs from some SOT-89 NPN devices (e.g., MMBT2222A) where collector is pin 1. Always verify pinout using Figure 10 in DocID13309 Rev 6 before PCB layout.

What is the maximum safe operating frequency for PWM switching?

Based on measured t_s = 250 ns and t_f = 35 ns, the device supports clean switching up to 1 MHz in non-inductive loads. For inductive relay coils, limit frequency to ≤200 kHz to avoid voltage overshoot exceeding V_CEO = –60 V.

Can the 2STF2360 replace an NPN transistor in existing circuitry?

No-it is a PNP device with opposite polarity. Swapping requires inverting drive logic, reversing supply connections, and recalculating base resistor values. Direct replacement is not electrically feasible without schematic revision.

Does the 2STF2360 require a heatsink in standard SOT-89 mounting?

Not for continuous I_C ≤ 2 A with ≥1 cm² copper pour. At I_C = 3 A, junction temperature rise is ~125 °C above ambient (1.4 W × 89 °C/W), so operation is safe up to 25 °C ambient. Above that, reduce load current or increase copper area-no external heatsink needed.