Nexperia USA Inc. PBSS5330X,115

Overview

PBSS5330X,115 from Nexperia is a PNP low V_CEsat transistor in SOT89 package, rated for −30 V V_CEO, −3 A continuous collector current, and 80 mΩ typical R_CEsat at −3 A/−300 mA drive. It serves as a high-efficiency power switch in DC/DC converters and battery charger circuits where minimal conduction loss and thermal footprint are critical.

For engineers reviewing the PBSS5330X,115 datasheet, PBSS5330X,115 pinout, PBSS5330X,115 application, or PBSS5330X,115 equivalent, key selection criteria include verified AEC-Q101 qualification, −320 mV V_CEsat at full load, thermal resistance down to 80 K/W on ceramic PCB, and SOT89 mechanical compatibility with industrial and automotive board layouts.

Technical Context

This PNP bipolar transistor operates in saturation mode for low-loss switching, with guaranteed h_FE ≥100 at −3 A/−300 mA and V_BEsat ≤ −1.2 V under same conditions. Its design targets stable performance across −55 °C to +150 °C junction temperature range.

Thermal behavior is defined by four distinct R_th(j-a) values (80–225 K/W) depending on PCB mounting configuration - including ceramic 7 cm² pad (80 K/W) and standard FR4 footprint (225 K/W) - enabling precise thermal margining in space-constrained power stages.

Key Specifications

Pinout & Package

SOT89 (SC-62) plastic surface-mount package: 4.5 mm × 2.5 mm × 1.5 mm body, 1.5 mm lead pitch, flat leads for thermal pad soldering. Collector tab is electrically connected to Pin 2 and thermally optimized for PCB copper area attachment.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP low V_CEsat transistor applications.

Compared with PBSS5330X,115, NSS40501MR6T1G trades thermal robustness for voltage headroom and size, while DXT5330Z-13 matches form factor but sacrifices 50% higher conduction loss and lacks automotive qualification - making PBSS5330X,115 optimal for thermally demanding, safety-critical 12 V systems.

Availability

PBSS5330X,115 is available at Aetrix Electronics and suitable for DC/DC converters, battery chargers, and LCD backlighting requiring stable component supply across automotive production cycles and industrial equipment lifecycles.

Supply support for PBSS5330X,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 manufacturing rooted in process technology leadership and automotive-grade quality systems.

PBSS5330X,115 belongs to Nexperia's Low V_CEsat Transistor product line, engineered specifically for power management efficiency in space- and thermal-constrained applications such as automotive body electronics and portable power systems.

FAQ

What is the maximum continuous collector current for PBSS5330X,115 under standard FR4 PCB conditions?

The PBSS5330X,115 supports −3 A continuous collector current when mounted on an FR4 PCB with standard footprint (R_th(j-a) = 225 K/W), provided ambient temperature remains ≤25 °C and power dissipation stays within 550 mW limit. Derating is required above 25 °C per Figure 1.

Does PBSS5330X,115 require a base resistor for MCU GPIO drive, and what value is recommended?

Yes - a base resistor is required to limit base current. For −3 A collector current and h_FE ≥100, −30 mA base current suffices. With 3.3 V GPIO and −1.2 V V_BEsat, a 70 Ω resistor delivers −30 mA; 68 Ω is standard E24 value and ensures reliable saturation.

Can PBSS5330X,115 be used in linear regulator pass transistor applications?

No - PBSS5330X,115 is optimized for saturated switching, not linear operation. Its SOA is limited to pulsed conditions (tp ≤ 300 µs), and continuous linear use risks thermal runaway due to low R_CEsat and positive tempco of V_CEsat. Use dedicated linear pass transistors instead.

How does the AEC-Q101 qualification impact PCB layout requirements for PBSS5330X,115?

AEC-Q101 qualification confirms robustness against thermal cycling and humidity, but does not relax layout rules. Maintain ≥0.5 mm clearance to adjacent traces, use ≥1 cm² copper pour under Pin 2 (collector), and follow Nexperia's SOT89 reflow footprint (Figure 14) to ensure solder joint integrity and thermal performance in automotive environments.