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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Nexperia USA Inc. PBSS4320T,215

Name: PBSS4320T,215
Brand: Nexperia USA Inc.
SKU: PBSS4320T,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS4320T,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: PBSS4320T,215.pdf

Description:: TRANS NPN 20V 2A TO-236AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PBSS4320T,215 from Nexperia is a 20 V NPN low-V_CE(sat) transistor in SOT23 package, designed for high-efficiency switching in power management circuits. It delivers 2 A continuous collector current, 80 mΩ typical R_CE(sat) at I_C = 2 A / I_B = 200 mA, and is AEC-Q101 qualified for automotive-grade reliability.

For engineers reviewing the PBSS4320T,215 datasheet, PBSS4320T,215 pinout, PBSS4320T,215 application, or PBSS4320T,215 equivalent, this device is selected for low-dropout linear regulation, DC/DC converter synchronous rectification, and battery charger load switching where thermal efficiency and space-constrained mounting are critical.

Technical Context

This NPN transistor operates as a high-current, low-saturation-voltage switch with V_CE(sat) ≤ 230 mV at I_C = 2 A / I_B = 40 mA (pulsed), and ≤ 210 mV at I_C = 2 A / I_B = 200 mA (pulsed). Its h_FE ≥ 220 at I_C = 100 mA ensures robust base drive margin in digital control interfaces.

Thermal performance is optimized for FR4 PCBs: R_th(j-a) = 104 K/W under pulsed conditions (δ ≤ 0.25, t_p ≤ 100 ms), enabling sustained 2 A operation without active cooling. The 150 °C max junction temperature supports under-hood automotive environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	20 V - Maximum safe collector-emitter voltage with base open; defines maximum supply rail compatibility in 12 V automotive systems.
I_C	2 A continuous - Sustained switching current rating; supports >10 W load handling in LDO or supply-line switch applications.
R_CE(sat)	80–105 mΩ typical - Low on-resistance reduces conduction loss and self-heating; enables <150 mW dissipation at 2 A DC.
h_FE	≥220 at I_C = 100 mA - High DC current gain allows direct GPIO or logic-level drive without external amplification.
V_CE(sat)	≤210 mV at I_C = 2 A / I_B = 200 mA - Ultra-low saturation voltage minimizes dropout and improves system efficiency in battery-powered designs.
AEC-Q101	Qualified - Meets stress-test requirements for automotive discrete semiconductors; validated for temperature cycling, HTRB, and ESD.

Pinout & Package

SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch) with standard footprint per Figure 11 (reflow) and Figure 12 (wave soldering).

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control input terminal; requires ≥200 mA peak base drive to achieve rated R_CE(sat); compatible with 3.3 V/5 V logic drivers.
2	Emiter (E)	Reference node for collector current path; connected to ground or low-side return in common-emitter configurations.
3	Collector (C)	High-current output terminal; thermally coupled to PCB copper pad per Table 6 (R_th(j-a) drops to 104 K/W with pulsed operation).

Key Features

Feature	Design Value
Low V_CE(sat)	210 mV max at full 2 A load - Reduces power loss by >40% vs. standard bipolar transistors, lowering thermal design burden.
High current gain	h_FE ≥ 220 at 100 mA - Enables single-stage logic-level drive, eliminating need for Darlington or MOSFET gate driver stages.
AEC-Q101 qualification	Validated for automotive use - Includes HTSL, AC/DC life test, and ESD ≥ 2 kV HBM - supports under-dash and engine-bay deployments.
Thermal robustness	T_j max = 150 °C with R_th(j-a) = 104 K/W (pulsed) - Allows reliable 2 A operation on minimal 1 cm² copper without heatsink.

Applications

Automotive Battery Charger

DC/DC Converter Synchronous Rectifier

Use Scenario: Switching element in 12 V automotive battery charging circuit with reverse-polarity and overcurrent protection.

IC Role / Device Role / Timing Role: Low-side NPN switch controlling charge path between alternator and battery bank.

Use Value: 210 mV V_CE(sat) limits voltage drop to <0.25 V at 2 A, preserving >97% charging efficiency and reducing thermal derating.

Use Scenario: Secondary-side switch in non-isolated buck converter powering infotainment subsystems.

IC Role / Device Role / Timing Role: Synchronous rectifier replacing Schottky diode to minimize conduction loss during low-duty-cycle operation.

Use Value: 80 mΩ R_CE(sat) cuts average conduction loss by 65% vs. 400 mΩ Schottky, improving light-load efficiency by 3–5 percentage points.

LDO Linear Voltage Regulator

Supply Line Switch for ADAS Sensors

Use Scenario: Pass transistor in 3.3 V/2 A LDO regulator supplying camera module power in parking assist systems.

IC Role / Device Role / Timing Role: Series pass element operating in linear mode with feedback-controlled base bias.

Use Value: 230 mV V_CE(sat) at 2 A enables <0.3 V dropout, allowing stable 3.3 V output from 3.6 V minimum input - critical for Li-ion battery operation.

Use Scenario: Power enable switch isolating radar sensor supply during sleep mode in autonomous driving ECUs.

IC Role / Device Role / Timing Role: High-reliability load switch activated by microcontroller GPIO to manage power sequencing.

Use Value: AEC-Q101 qualification and 150 °C T_j rating ensure fail-safe operation across -40 °C to +125 °C ambient, meeting ISO 26262 ASIL-B support requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NSS40201LT1G	V_CEO = 20 V, I_C = 2 A, R_CE(sat) = 110 mΩ (typ), h_FE = 100–300 - lower h_FE min and higher R_CE(sat).	Not AEC-Q101 qualified; limited to industrial/commercial temperature range (−55 °C to +150 °C not guaranteed).	Select when cost sensitivity outweighs automotive qualification and tighter V_CE(sat) tolerance.
Diodes Incorporated DXTN20200Q-7	V_CEO = 20 V, I_C = 2 A, R_CE(sat) = 95 mΩ (typ), h_FE = 150–400 - slightly higher R_CE(sat), wider h_FE spread.	AEC-Q101 qualified but specified for T_j up to 175 °C; thermal resistance less optimized for SOT23 FR4 mounting.	Prefer when extended junction temperature margin is required beyond 150 °C, accepting minor efficiency trade-off.

Compared with NSS40201LT1G and DXTN20200Q-7, PBSS4320T,215 offers the lowest verified R_CE(sat) (80 mΩ typ) and tightest V_CE(sat) spec (210 mV max) at full 2 A load, making it optimal for thermally constrained automotive power switches where efficiency and qualification are jointly critical.

Availability

PBSS4320T,215 is available at Aetrix Electronics and suitable for automotive battery chargers, DC/DC converter synchronous rectifiers, and LDO linear regulators requiring stable component supply and AEC-Q101 compliance.

Supply support for PBSS4320T,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 specializing in high-performance, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient power solutions.

PBSS4320T,215 belongs to Nexperia's "Low V_CE(sat) Transistor" product line, engineered specifically for high-efficiency power switching in space- and thermal-constrained automotive and industrial applications.

FAQ

What is the maximum continuous collector current for PBSS4320T,215 under standard PCB conditions?

The PBSS4320T,215 supports 2 A continuous collector current when mounted on an FR4 PCB with standard footprint (single-sided copper, tin-plated). Derating applies above Tamb = 25 °C per Figure 5–8; at 85 °C ambient, max continuous I_C is ~1.4 A to maintain T_j ≤ 150 °C.

Is PBSS4320T,215 pin-compatible with its PNP complement PBSS5320T?

Yes - both PBSS4320T,215 (NPN) and PBSS5320T share identical SOT23 package dimensions and pinout: Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector. This allows symmetrical layout design for complementary switching stages in H-bridge or dual-rail power control.

What base drive current is required to achieve the specified 210 mV V_CE(sat) at 2 A collector current?

To achieve ≤210 mV V_CE(sat) at I_C = 2 A, the datasheet specifies I_B = 200 mA (pulsed, t_p ≤ 300 µs, δ ≤ 0.02). For DC operation, sustained 200 mA base current is required - achievable via dedicated driver IC or logic buffer with ≥250 mA sink capability.

Does PBSS4320T,215 support wave soldering, and what footprint is recommended?

Yes - PBSS4320T,215 is qualified for wave soldering. Nexperia recommends the footprint in Figure 12: 1.4 mm pad width (2×), 2.2 mm pad length, 2.6 mm overall length, with 1.4 mm transport direction alignment. Solder mask defined pads and 0.7 mm stencil aperture height ensure reliable joint formation.

PBSS4320T,215 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 2 A

Voltage - Collector Emitter Breakdown (Max):: 20 V

Vce Saturation (Max) @ Ib, Ic:: 310mV @ 300mA, 3A

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 220 @ 1A, 2V

Power - Max:: 540 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

PBSS4320T,215 FAQ

1.How can I place an order for PBSS4320T,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS4320T,215 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PBSS4320T,215 reliable?

The price and inventory of PBSS4320T,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4320T,215 is usually 5 days.

3.What payment methods are accepted for PBSS4320T,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4320T,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS4320T,215?

PBSS4320T,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS4320T,215 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PBSS4320T,215?

For technical support, including PBSS4320T,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4320T,215 requirements.

6.How does Aetrix verify that PBSS4320T,215 is sourced from the original manufacturer or authorized distributors?

All PBSS4320T,215 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PBSS4320T,215 meets industry standards.

7.What is the process for return or replacement of PBSS4320T,215?

All PBSS4320T,215 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4320T,215, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PBSS4320T,215 part is unused and in its original packaging.

Return procedure for PBSS4320T,215:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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