Nexperia USA Inc. PBSS4032SN,115

Overview

PBSS4032SN,115 from Nexperia is a dual NPN low V_CE(sat) BISS transistor in SOT96-1 (SO8) package, designed for high-efficiency switching in power management circuits. It delivers 30 V V_CEO, 5.7 A continuous collector current, and 45 mΩ typical R_CE(sat) at I_C = 4 A / I_B = 0.4 A - enabling compact DC-DC converters and battery charging circuits with reduced conduction loss.

For engineers reviewing the PBSS4032SN,115 datasheet, PBSS4032SN,115 pinout, PBSS4032SN,115 application, or PBSS4032SN,115 equivalent, this device is selected for high-current, low-saturation-voltage dual-transistor topologies where thermal efficiency and PCB area reduction are critical - especially in space-constrained portable power systems.

Technical Context

This dual NPN BISS transistor integrates two independent high-gain, low-saturation transistors in a single SO8 package, sharing no internal connection between channels. Each transistor supports independent base drive and exhibits h_FE ≥ 200 at I_C = 4 A, enabling robust current amplification without external gain staging.

Its optimized switching performance includes t_on = 65 ns and t_off = 215 ns under 12.5 V V_CC, 1 A I_C, and ±50 mA base drive - suitable for medium-frequency PWM control. The 45–62.5 mΩ R_CE(sat) range directly reduces I²R losses in high-duty-cycle operation.

Key Specifications

Pinout & Package

SOT96-1 (SO8) is an 8-lead, surface-mount plastic package with 1.27 mm lead pitch, 3.9 mm body width, and exposed collector pads (pins 5, 6, 7, 8) for enhanced thermal conduction. The package supports reflow and wave soldering per JEDEC J-STD-020 and J-STD-006 standards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PHPT60602SN and BC847BDW1T3G, PBSS4032SN,115 uniquely balances 30 V rating, 5.7 A current capability, and sub-50 mΩ saturation resistance - making it the only option among the three qualified for high-efficiency, medium-power switching below 30 V without external heatsinking.

Availability

PBSS4032SN,115 is available at Aetrix Electronics and suitable for DC-DC conversion, battery charging circuits, and power management systems requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for PBSS4032SN,115 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, with leadership in advanced packaging and automotive-qualified components.

PBSS4032SN,115 belongs to Nexperia's BISS transistor product line - engineered specifically for high-efficiency, high-current switching in space-constrained power management applications where thermal performance and PCB area savings are critical.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum base current (I_B) is 1 A per transistor, as specified in Table 6. However, for reliable continuous operation at I_C = 4 A, the recommended base drive is 0.4 A (I_C/I_B = 10), which ensures deep saturation while maintaining thermal safety margins on standard FR4 PCBs.

Can PBSS4032SN,115 be used in linear regulator applications?

No - PBSS4032SN,115 is optimized for switching operation, not linear regulation. Its P_tot rating of 0.86 W on FR4 limits usable power dissipation; sustained linear operation above ~0.5 W risks exceeding T_j = 150 °C without active cooling, and its h_FE roll-off above 2 A degrades regulation accuracy.

How are the four collector pins (5, 6, 7, 8) internally connected?

Pins 5 and 6 are internally joined as the collector of TR2; pins 7 and 8 are internally joined as the collector of TR1. There is no electrical connection between TR1 and TR2 collectors - they are fully isolated, enabling independent switching or paralleled operation per channel.

Is the SOT96-1 package RoHS-compliant and halogen-free?

Yes - PBSS4032SN,115 meets RoHS Directive 2011/65/EU and is certified halogen-free per IEC 61249-2-21. The SOT96-1 package uses lead-free matte tin plating and compliant molding compound, with full material declarations available in Nexperia's compliance portal.