Nexperia USA Inc. PBSS4230T,215

Overview

PBSS4230T,215 from Nexperia is an AEC-Q101-qualified NPN low V_CE(sat) transistor in SOT23 package, rated for 30 V V_CEO, 2 A continuous collector current, and 240–320 mV V_CE(sat) at I_C = 2 A / I_B = 200 mA. It serves as a high-efficiency switching element in low-voltage power paths such as battery chargers and LED backlight drivers.

For engineers reviewing the PBSS4230T,215 datasheet, PBSS4230T,215 pinout, PBSS4230T,215 application, or PBSS4230T,215 equivalent, key selection criteria include its low saturation voltage, automotive qualification, thermal resistance (260 K/W with enhanced pad), and compatibility with FR4 PCB layouts using standard SOT23 footprints.

Technical Context

This discrete NPN bipolar junction transistor operates as a saturated switch in DC/DC converters and load drivers, leveraging high h_FE (350–470 at I_C = 100 mA) and low R_CE(sat) (140–200 mΩ) to minimize conduction loss. Its 150 °C maximum junction temperature and AEC-Q101 qualification support operation in automotive ambient environments up to 105 °C.

The device uses standard base-emitter forward biasing for turn-on control, with V_BE(sat) ≤ 1.1 V and V_BE(on) ≈ 0.75 V, enabling direct drive from 3.3 V or 5 V logic without external level-shifting. Its f_T of 100–230 MHz supports fast switching in PWM-based applications up to several hundred kHz.

Key Specifications

Pinout & Package

Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch), optimized for automated reflow assembly on FR4 PCBs with standard footprint per Fig. 2 (sot023_fr).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN low V_CE(sat) transistor applications.

Compared with NSS40201MZ4T1G and DXTN202000000000, PBSS4230T,215 uniquely balances 30 V rating, AEC-Q101 qualification, and 240–320 mV V_CE(sat) - making it the optimal choice for 24 V automotive power switches where both reliability and efficiency are mandated.

Availability

PBSS4230T,215 is available at Aetrix Electronics and suitable for battery charger control, LCD backlighting, and inductive load driving requiring stable component supply across automotive production programs and industrial embedded designs.

Supply support for PBSS4230T,215 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 delivering high-performance, reliable components for automotive, industrial, and consumer applications, with leadership in logic, discretes, and MOSFETs.

PBSS4230T,215 belongs to Nexperia's Low V_CE(sat) Transistor product line, engineered specifically for high-efficiency, space-constrained power switching in automotive and portable electronics where thermal and voltage margins are tight.

FAQ

What is the maximum continuous collector current for PBSS4230T,215 at 70 °C ambient?

At T_amb = 70 °C, the maximum continuous collector current is derated to approximately 1.3 A based on its 480 mW P_tot rating and 260 K/W R_th(j-a). This assumes a 1 cm² copper pad on FR4; actual current depends on PCB layout and airflow. The device remains within safe operating area up to 150 °C junction temperature.

Does PBSS4230T,215 require a base resistor, and how is its value calculated?

Yes - a base resistor is required to limit I_B and ensure saturation. For I_C = 2 A and minimum h_FE = 150 at that current, I_B ≥ 13.3 mA is needed. With 3.3 V drive and V_BE(sat) ≈ 1.1 V, R_B ≤ (3.3 − 1.1) V / 13.3 mA ≈ 165 Ω. A 150 Ω ±5% resistor ensures reliable saturation while limiting base power dissipation.

Can PBSS4230T,215 replace a MOSFET in low-side switching applications?

Yes - it serves as a cost-effective alternative to small-signal MOSFETs in applications where gate drive voltage is limited (e.g., 3.3 V logic), board space is constrained, and V_DS(on) advantages are offset by MOSFET gate charge and driver complexity. Its 240–320 mV V_CE(sat) delivers comparable conduction loss to many 20 V MOSFETs at 2 A, especially with low gate drive capability.

Is the SOT23 footprint for PBSS4230T,215 compatible with JEDEC MO-203AA standards?

Yes - the PBSS4230T,215 uses the standard SOT23 outline per Nexperia's Fig. 1 (18-03-12), matching JEDEC MO-203AA dimensions: 2.9 mm × 1.3 mm body, 1.9 mm lead pitch, and 0.45 mm nominal lead thickness. Reflow soldering footprint sot023_fr (0.6 mm pad width, 0.5 mm spacing) complies with IPC-7351B density level A.