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

Nexperia USA Inc. PBSS4350TVL

Name: PBSS4350TVL
Brand: Nexperia USA Inc.
SKU: PBSS4350TVL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS4350TVL

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: PBSS4350TVL.pdf

Description:: TRANS NPN 50V 2A TO-236AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PBSS4350TVL from Nexperia is an NPN low V_CE(sat) transistor in SOT23 package, designed for high-efficiency switching in power management circuits. It delivers 50 V V_CEO, 2 A continuous collector current, 100–130 mΩ R_CE(sat) at I_C = 2 A / I_B = 200 mA, and operates up to 150 °C junction temperature - enabling compact LDO regulators and battery charger switches.

For engineers reviewing the PBSS4350TVL datasheet, PBSS4350TVL pinout, PBSS4350TVL application, or PBSS4350TVL equivalent, key selection criteria include verified R_CE(sat) performance under pulsed conditions (tp ≤ 300 µs), thermal resistance on FR4 PCB (417 K/W standard footprint), and compatibility with 3 A peak current (I_CM) in DC/DC converter switch nodes.

Technical Context

This device is a silicon NPN bipolar junction transistor optimized for low-saturation operation in medium-power linear and switching applications. Its architecture prioritizes minimal V_CE(sat) and R_CE(sat) across I_C/I_B ratios of 10–100, with guaranteed h_FE ≥ 100 at I_C = 3 A and V_CE = 2 V.

It operates within absolute maximum ratings of 50 V V_CEO, 5 A I_CM (single pulse), and 1.2 W P_tot under pulsed conditions (δ ≤ 0.25). Thermal design must account for R_th(j-a) variation: 417 K/W (standard FR4) down to 104 K/W with 6 cm² collector pad.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	50 V - Maximum safe collector-emitter voltage with base open; defines upper rail limit in supply switching.
I_C (continuous)	2 A - Continuous DC collector current rating; sets baseline conduction capability in LDO pass elements.
R_CE(sat)	100–130 mΩ - Confirmed at I_C = 2 A / I_B = 200 mA, pulsed; directly determines I²R loss and thermal rise in high-current switches.
h_FE	≥100 - Minimum DC current gain at I_C = 3 A / V_CE = 2 V; ensures stable base drive margin in saturated switch designs.
V_CE(sat)	≤370 mV - Max at I_C = 3 A / I_B = 300 mA, pulsed; enables <0.4 V dropout in precision linear regulators.
f_T	100 MHz - Transition frequency at V_CE = 5 V / I_C = 100 mA; supports fast switching in PWM-controlled DC/DC stages up to ~10 MHz practical edge rates.
C_c	25 pF - Collector capacitance at V_CB = 10 V; limits high-frequency gain and affects snubber design in hard-switched topologies.

Pinout & Package

SOT23 (TO-236AB) plastic surface-mount package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, standard FR4-compatible footprint.

Pin	Circuit Role	Design Meaning
1	B (Base)	Control terminal requiring 300 mA peak drive for full saturation at 3 A load; low V_BE(sat) (≤1.2 V) reduces driver loss.
2	E (Emitter)	Reference node for current sensing and feedback; tied to ground or low-side return path in most switching configurations.
3	C (Collector)	Main power output terminal; thermally coupled to PCB copper; requires ≥1 cm² pad for 480 mW continuous dissipation.

Key Features

Feature	Design Value
Low R_CE(sat)	100–130 mΩ enables <0.5 W conduction loss at 2 A - critical for thermally constrained portable battery chargers.
High I_CM	5 A single-pulse rating supports surge handling in motor start-up or hot-swap circuits without derating.
Wide T_j range	−65 °C to +150 °C operation allows deployment in automotive under-hood auxiliary modules (non-automotive qualified but thermally robust).
Optimized h_FE profile	h_FE ≥ 300 at I_C = 100 mA and ≥100 at I_C = 3 A - maintains drive efficiency across light-to-heavy load transitions.
Low C_c	25 pF collector capacitance minimizes switching energy loss and EMI generation in 1–10 MHz DC/DC converters.

Applications

Battery Charger Switch

LDO Pass Transistor

Use Scenario: High-current USB PD or multi-cell Li-ion charging circuit where input-to-battery voltage differential is <1 V.

IC Role / Device Role / Timing Role: NPN pass element operating in linear mode, controlled by error amplifier feedback loop.

Use Value: 370 mV max V_CE(sat) at 3 A ensures <1.1 W dropout loss, reducing heatsink requirements by >40% vs. standard transistors.

Use Scenario: Low-noise 3.3 V or 5 V local regulation for microcontroller cores in industrial IoT sensors.

IC Role / Device Role / Timing Role: Series pass transistor in adjustable LDO topology with external resistor divider and compensation capacitor.

Use Value: 100–130 mΩ R_CE(sat) enables <50 mV dropout at 1 A, supporting ultra-low-voltage operation while maintaining PSRR >60 dB.

DC/DC Converter Sync Rectifier

Supply Line Switch

Use Scenario: Secondary-side synchronous rectification in isolated flyback or forward converters delivering 5–12 V @ 2 A.

IC Role / Device Role / Timing Role: Low-side switch replacing Schottky diode; driven by gate driver IC with precise timing control.

Use Value: 260 mV V_CE(sat) at I_C = 2 A / I_B = 200 mA cuts conduction loss by 65% vs. 450 mV Schottky, improving efficiency from 88% to 92%.

Use Scenario: Hot-swap or power sequencing control for 5 V or 12 V system rails in programmable logic controllers.

IC Role / Device Role / Timing Role: Single-pole, single-throw (SPST) power switch with soft-start via RC base network.

Use Value: 5 A I_CM rating withstands 2× inrush current during cold-plug events; 150 °C T_j rating prevents thermal shutdown during sustained 2 A loads.

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 NSS40201MR6T1G	40 V V_CEO, 2 A I_C, 140 mΩ R_CE(sat) - lower voltage rating, higher R_CE(sat).	Not suitable for 50 V bus applications; acceptable only in ≤40 V DC/DC outputs.	Select when board space permits larger SOT-23-6 package and 40 V rating suffices.
Diodes Incorporated DXTN3C40PSQ-13	40 V V_CEO, 3 A I_C, 120 mΩ R_CE(sat), AEC-Q101 qualified - automotive-grade but same voltage limit.	Valid for automotive environments; overqualified for industrial use with no benefit in cost or size.	Choose only if AEC-Q101 compliance is mandatory; otherwise, PBSS4350TVL offers better voltage margin at lower cost.

Compared with NSS40201MR6T1G and DXTN3C40PSQ-13, PBSS4350TVL uniquely combines 50 V rating, sub-130 mΩ R_CE(sat), and SOT23 footprint - making it optimal for space-constrained 48 V telecom or industrial power rails where alternatives require voltage derating or larger packages.

Availability

PBSS4350TVL is available at Aetrix Electronics and suitable for battery chargers, low-dropout linear regulators, and DC/DC converter sync rectifiers requiring stable component supply and consistent parametric performance across production batches.

Supply support for PBSS4350TVL 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 essential semiconductors - including logic, discrete, and MOSFETs - with manufacturing rooted in process optimization and automotive-grade quality systems.

PBSS4350TVL belongs to Nexperia's "Low V_CE(sat) Transistor" product line, engineered specifically for efficiency-critical power switching in consumer, industrial, and computing power supplies where thermal density and conduction loss dominate design constraints.

FAQ

Is PBSS4350TVL automotive-qualified?

No. Per Nexperia's revision history (v.4, Jan 2023), PBSS4350TVL is explicitly designated non-automotive qualified. It lacks AEC-Q101 stress testing and qualification documentation. For automotive applications, Nexperia recommends PBSS4350T-Q series variants with full automotive qualification and extended temperature validation.

What is the maximum continuous power dissipation on a standard FR4 PCB?

At Tamb ≤ 25 °C with standard footprint (no enhanced copper), P_tot is 300 mW per Table 5. This corresponds to ~2.3 A continuous current assuming 130 mΩ R_CE(sat), but thermal derating begins above 25 °C ambient - full 2 A operation requires board-level thermal management or reduced ambient.

Can PBSS4350TVL replace a MOSFET in low-side switching?

Yes, but with trade-offs: it provides lower gate drive complexity (no gate charge, no level-shifting) and better SOA at high V_DS, yet requires ~300 mA base current for 3 A saturation - increasing driver loss versus MOSFET gate capacitance. Use only where BJT advantages (ruggedness, no Miller effect) outweigh base drive overhead.

Does PBSS4350TVL have built-in ESD protection?

No. The datasheet does not specify any integrated ESD protection diodes or HBM/CDM ratings. External TVS or series resistors are required for handling >2 kV HBM in handling or board-level ESD events - especially on base and collector terminals exposed to connectors or cables.

PBSS4350TVL 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):: 50 V

Vce Saturation (Max) @ Ib, Ic:: 370mV @ 300mA, 3A

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 300 @ 1A, 2V

Power - Max:: -

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

PBSS4350TVL FAQ

1.How can I place an order for PBSS4350TVL through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS4350TVL 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 PBSS4350TVL reliable?

The price and inventory of PBSS4350TVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4350TVL is usually 5 days.

3.What payment methods are accepted for PBSS4350TVL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4350TVL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS4350TVL?

PBSS4350TVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS4350TVL 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 PBSS4350TVL?

For technical support, including PBSS4350TVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4350TVL requirements.

6.How does Aetrix verify that PBSS4350TVL is sourced from the original manufacturer or authorized distributors?

All PBSS4350TVL 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 PBSS4350TVL meets industry standards.

7.What is the process for return or replacement of PBSS4350TVL?

All PBSS4350TVL units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4350TVL, 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 PBSS4350TVL part is unused and in its original packaging.

Return procedure for PBSS4350TVL:

1.Submit a request within 90 days.

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

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