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

Nexperia USA Inc. PBSS4320TVL

Name: PBSS4320TVL
Brand: Nexperia USA Inc.
SKU: PBSS4320TVL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS4320TVL

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: PBSS4320TVL.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PBSS4320TVL from Nexperia is a 20 V, 2 A NPN low V_CE(sat) transistor in SOT23 package, designed for high-efficiency switching in power management circuits. It delivers 80 mΩ typical R_CE(sat) at I_C = 2 A / I_B = 200 mA, supports 3 A pulsed current, and is AEC-Q101 qualified for automotive-grade reliability in supply-line switching and LDO regulation.

For engineers reviewing the PBSS4320TVL datasheet, PBSS4320TVL pinout, PBSS4320TVL application, or PBSS4320TVL equivalent, key selection criteria include its ultra-low saturation resistance, thermal performance on FR4 PCBs, junction temperature rating up to 150 °C, and compatibility with standard SOT23 reflow footprints per IPC-7351.

Technical Context

This NPN transistor operates as a high-current, low-loss switch in DC/DC converters and battery charging paths. Its design emphasizes minimal conduction loss via sub-105 mΩ R_CE(sat), stable h_FE ≥ 220 at I_C = 100–2000 mA, and robust thermal behavior under pulsed conditions (δ ≤ 0.02, t_p ≤ 300 µs).

AEC-Q101 qualification confirms stress resilience across −65 °C to +150 °C ambient and storage ranges. The device uses epitaxial planar technology with optimized emitter-base geometry to maintain low V_BE(sat) (≤230 mV at I_C = 2 A / I_B = 40 mA) while sustaining 5 A peak collector current capability.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	20 V - Maximum safe collector-emitter voltage with base open; defines upper rail limit in 12 V automotive and 5–19 V portable power systems.
I_C	2 A continuous - Sustained switching current enabling compact load-switch designs without forced cooling on standard FR4 PCBs.
R_CE(sat)	80–105 mΩ - Low on-resistance reduces I²R losses below 420 mW at 2 A, improving efficiency in battery-powered LDO and charger IC front-end stages.
h_FE	220 min at I_C = 100 mA - High DC current gain allows direct MCU GPIO drive without external base amplification in low-power control logic.
T_j max	150 °C - Junction temperature limit supporting operation in engine-bay adjacent modules and sealed industrial enclosures.
AEC-Q101	Qualified - Validated for automotive applications including powertrain sensors, body control units, and infotainment power rails.

Pinout & Package

SOT23 plastic surface-mount package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, standard footprint compatible with IPC-7351 SOT-23-3A land pattern.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control input requiring ~200 mA drive for full saturation at 2 A collector current; low V_BE(sat) enables efficient digital logic interfacing.
2	Emitter (E)	Reference node tied to system ground or low-side return path; internally connected to exposed die attach pad for thermal conduction in PCB layout.
3	Collector (C)	High-current output terminal handling up to 3 A pulsed loads; requires ≥1 cm² copper pour for 480 mW continuous dissipation per datasheet condition [2].

Key Features

Feature	Design Value
Low V_CE(sat)	210 mV typ. at I_C = 2 A / I_B = 200 mA - Enables <100 mV dropout in linear regulators and minimizes heat generation in always-on supply switches.
High I_C capability	2 A continuous, 3 A pulsed - Supports higher power density in space-constrained DC/DC converter secondary-side synchronous rectification or OR-ing diode replacement.
Thermal robustness	R_th(j-a) = 104 K/W under pulsed conditions - Allows reliable operation without heatsinking in intermittent high-load scenarios like USB PD charge negotiation bursts.
AEC-Q101 qualification	Validated for automotive temperature cycling, HTRB, and ESD - Permits drop-in use in ASIL-B compliant subsystems without additional component-level qualification effort.

Applications

Automotive Body Control Module

USB-C Power Delivery Charger

Use Scenario: Switching 12 V accessory loads (e.g., LED lighting, window motors) under microcontroller command in BCMs.

IC Role / Device Role / Timing Role: Low-side power switch controlling load current path with fast turn-on/off and minimal voltage drop.

Use Value: 210 mV V_CE(sat) limits power loss to 420 mW at 2 A, reducing thermal stress in densely packed BCM PCBs and eliminating need for discrete heat sinks.

Use Scenario: Enabling/disabling VBUS path during USB-C port negotiation and fault isolation.

IC Role / Device Role / Timing Role: Bidirectional load switch element in VBUS power path, driven by PD controller GPIO.

Use Value: 80 mΩ R_CE(sat) ensures <50 mV voltage drop at 600 mA, preserving PD specification compliance and minimizing bus voltage sag during cable detection.

Industrial Linear Voltage Regulator

Portable Device Battery Protection

Use Scenario: Pass transistor in low-dropout (LDO) regulator supplying FPGA core voltage from 3.3 V rail.

IC Role / Device Role / Timing Role: Series pass element modulating output voltage via base bias; operates in linear region during regulation.

Use Value: Stable h_FE ≥ 220 across −55 °C to +150 °C ensures predictable loop gain and transient response over full industrial temperature range.

Use Scenario: Overcurrent protection switch isolating Li-ion battery pack from system load during fault events.

IC Role / Device Role / Timing Role: Fast-acting current-limiting switch triggered by protection IC comparator output.

Use Value: 5 A peak I_CM rating handles short-circuit transients without second breakdown, enabling single-device protection in compact wearable battery packs.

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, R_CE(sat) = 110 mΩ typ. at I_C = 2 A - 37% higher on-resistance than PBSS4320TVL.	Lower efficiency in high-current LDOs; requires larger copper area to match thermal performance.	Select when legacy ON Semi BOM alignment is required and 30–50 mV higher dropout is acceptable.
Diodes Incorporated DXTN20020CTR	V_CEO = 20 V, R_CE(sat) = 95 mΩ typ. at I_C = 2 A - 19% higher on-resistance; not AEC-Q101 qualified.	Not suitable for automotive environments; limited to commercial-temp industrial or consumer applications.	Choose for cost-sensitive non-automotive designs where AEC-Q101 is unnecessary and 15 mΩ R_CE(sat) penalty is tolerable.

Compared with NSS40201LT1G and DXTN20020CTR, PBSS4320TVL offers the lowest R_CE(sat) and only AEC-Q101-qualified option, making it optimal for thermally constrained automotive and industrial power switches where efficiency and qualification rigor are critical.

Availability

PBSS4320TVL is available at Aetrix Electronics and suitable for automotive body control modules, USB-C power delivery chargers, and industrial linear voltage regulators requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for PBSS4320TVL 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and mobile markets.

PBSS4320TVL belongs to Nexperia's low V_CE(sat) transistor product line, engineered specifically for high-efficiency power switching in space- and thermal-constrained applications such as automotive ECUs and portable power systems.

FAQ

What is the maximum continuous collector current for PBSS4320TVL at 25 °C ambient?

The maximum continuous collector current is 2 A under standard mounting conditions on an FR4 PCB with single-sided copper and tin-plated finish. This rating assumes T_amb ≤ 25 °C and accounts for thermal derating above that temperature per the R_th(j-a) = 417 K/W curve in Table 6.

Is PBSS4320TVL pin-compatible with other SOT23 NPN transistors?

PBSS4320TVL uses standard SOT23-3 pinning (1 = Base, 2 = Emitter, 3 = Collector), matching JEDEC TO-236AB outline. However, electrical characteristics-including V_CE(sat), h_FE, and thermal resistance-differ significantly from generic SOT23 transistors, so functional substitution requires validation of drive strength and thermal margin.

Does PBSS4320TVL support wave soldering?

Yes, PBSS4320TVL is qualified for wave soldering using the footprint defined in Figure 12 (sot023_fw), with recommended transport direction aligned to pin 1–3 axis. Peak temperature must not exceed 260 °C for ≤10 seconds, and preheat ramp rate should stay within 3 °C/s per Nexperia's SMT guidelines.

How does AEC-Q101 qualification impact PBSS4320TVL's use in non-automotive designs?

AEC-Q101 qualification provides enhanced reliability margins-including extended temperature cycling, biased HAST, and ESD robustness-that benefit any mission-critical application. While not required for commercial use, it enables longer field life in industrial equipment, medical monitors, and outdoor IoT gateways operating in harsh thermal environments.

PBSS4320TVL 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:: -

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

PBSS4320TVL FAQ

1.How can I place an order for PBSS4320TVL through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS4320TVL 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 PBSS4320TVL reliable?

The price and inventory of PBSS4320TVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4320TVL is usually 5 days.

3.What payment methods are accepted for PBSS4320TVL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4320TVL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS4320TVL?

PBSS4320TVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS4320TVL 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 PBSS4320TVL?

For technical support, including PBSS4320TVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4320TVL requirements.

6.How does Aetrix verify that PBSS4320TVL is sourced from the original manufacturer or authorized distributors?

All PBSS4320TVL 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 PBSS4320TVL meets industry standards.

7.What is the process for return or replacement of PBSS4320TVL?

All PBSS4320TVL units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4320TVL, 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 PBSS4320TVL part is unused and in its original packaging.

Return procedure for PBSS4320TVL:

1.Submit a request within 90 days.

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

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