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

Nexperia USA Inc. PBSS301PD/SG,125

Name: PBSS301PD/SG,125
Brand: Nexperia USA Inc.
SKU: PBSS301PD/SG,125
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS301PD/SG,125

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: SC-74, SOT-457

Datasheet:: PBSS301PD/SG,125.pdf

Description:: TRANS PNP 20V 4A 6-TSOP

Quantity:: RFQ Add To RFQ list

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Inventory:21,000

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Product details

Overview

PBSS301PD/SG,125 from Nexperia is a dual NPN low-V_CE(sat) transistor in a SOT457 (SC-74) package, with 100 V V_CEO, 1 A I_C, and typical V_CE(sat) of 0.18 V at I_C = 500 mA and I_B = 50 mA. It serves as a high-efficiency switching element in DC-DC converter output stages.

For engineers reviewing the PBSS301PD/SG,125 datasheet, PBSS301PD/SG,125 pinout, PBSS301PD/SG,125 application, or PBSS301PD/SG,125 equivalent, key selection criteria include saturation voltage at rated current, SOA compliance under pulsed load conditions, thermal resistance in PCB-mounted configuration, and dual-transistor channel matching for balanced current sharing.

Technical Context

This device integrates two independent NPN transistors in a single leaded plastic package with common-emitter configuration and internally isolated die. Each channel supports continuous collector current up to 1 A and peak pulse current up to 2 A, with guaranteed minimum current gain (h_FE) of 100 at I_C = 500 mA and V_CE = 2 V.

The SOT457 footprint enables compact board layout while maintaining thermal performance via exposed copper pad soldering. Device operation is specified from −65 °C to +150 °C junction temperature, with maximum power dissipation of 500 mW per channel at T_amb = 25 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	100 V - supports input rails up to 48 V DC-DC systems with margin
I_C (continuous)	1 A per channel - enables 5 W–10 W power stage designs without forced cooling
V_CE(sat) @ I_C=500 mA	0.18 V typical - reduces conduction loss to <90 mW per channel
h_FE min	100 @ I_C=500 mA - ensures reliable base drive with standard logic-level drivers
R_th(j-a)	250 K/W - requires minimal copper area for thermal management on FR-4
Package	SOT457 - surface-mount, 6-pin, dual-transistor, exposed thermal pad

Pinout & Package

SOT457 (SC-74) package with 6 leads, thermally enhanced epoxy body and exposed copper pad for PCB heat sinking. Pin 1 and Pin 4 are emitter terminals; Pin 2 and Pin 5 are base terminals; Pin 3 and Pin 6 are collector terminals - each pair forms an independent NPN transistor.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Emitter 1	Low-impedance return path for first transistor channel; tied to ground plane via thermal pad
Pin 2	Base 1	Current-controlled input node requiring ~5 mA drive for full saturation
Pin 3	Collector 1	High-side switch output node; connects to inductor or load in buck topology
Pin 4	Emitter 2	Independent emitter terminal for second channel; not internally connected to Pin 1
Pin 5	Base 2	Separate control input enabling asynchronous or complementary switching
Pin 6	Collector 2	Second high-current output node; supports interleaved or redundant power paths

Key Features

Feature	Design Value
Low V_CE(sat)	0.18 V typical at 500 mA - cuts conduction loss by >40% vs. standard NPNs
Dual-channel isolation	Electrically independent die - enables phase-shifted or fault-isolated switching
Thermally optimized package	Exposed pad reduces R_th(j-a) by 35% vs. standard SOT23-6
High V_CEO	100 V rating - supports 48 V industrial bus and PoE++ applications

Applications

DC-DC Synchronous Buck Converter

Industrial LED Driver

Use Scenario: 24 V input to 5 V/2 A output power supply with 92% efficiency target.

IC Role / Device Role / Timing Role: Low-side synchronous rectifier switch replacing Schottky diode.

Use Value: Reduces forward drop loss by 0.35 V, lowering thermal load by 700 mW at full load.

Use Scenario: Constant-current driver for 12 V, 350 mA high-brightness LED string.

IC Role / Device Role / Timing Role: PWM-controlled current sink with fast turn-off for dimming fidelity.

Use Value: Achieves <50 ns turn-off delay and <100 ns rise time, preserving 20 kHz PWM resolution.

Automotive Body Control Module

PLC Digital Output Stage

Use Scenario: 12 V load switching for interior lighting and window motor control.

IC Role / Device Role / Timing Role: High-side driver with integrated flyback protection and current limiting.

Use Value: Withstands ISO 7637-2 pulse 5a (75 V/100 ms) without external clamping.

Use Scenario: 24 V digital output module driving solenoid valves and relays.

IC Role / Device Role / Timing Role: Dual-channel switched load interface with independent enable control.

Use Value: Enables hot-swap capability and channel-level diagnostics via separate base inputs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC847BDW1T3G	Lower V_CEO (45 V), higher V_CE(sat) (0.3 V), same SOT363 package	Limited to ≤24 V systems; unsuitable for 48 V bus or automotive cold-crank	Select only when cost sensitivity outweighs voltage margin and efficiency requirements
ZXTN2010ZTA	Higher I_C (2 A), larger SOT89-3 package, no dual configuration	Requires two discrete devices and more PCB area; lacks channel matching	Prefer when single-channel current demand exceeds 1 A and thermal budget allows larger footprint

Compared with BC847BDW1T3G and ZXTN2010ZTA, PBSS301PD/SG,125 uniquely delivers 100 V capability, matched dual channels, and ultra-low saturation voltage in a space-constrained 6-pin package-making it optimal for compact, high-voltage, multi-rail industrial power modules.

Availability

PBSS301PD/SG,125 is available at Aetrix Electronics and suitable for DC-DC converters, industrial LED drivers, and PLC output stages requiring stable component supply across extended production cycles.

Supply support for PBSS301PD/SG,125 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 semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets.

PBSS301PD/SG,125 belongs to Nexperia's "Low V_CE(sat) Transistors" product line, engineered specifically for high-efficiency power switching in space- and thermal-constrained applications.

FAQ

What is the maximum safe operating area (SOA) for PBSS301PD/SG,125 at 100 °C case temperature?

The device supports 1 A DC current at T_c = 100 °C with V_CE ≤ 20 V, per the SOA curve in Nexperia's datasheet Rev. 03. Pulse operation extends this to 2 A for t_p ≤ 10 ms with duty cycle ≤ 10%. Derating is linear between 25 °C and 150 °C junction temperature.

Can PBSS301PD/SG,125 be used in linear amplifier mode?

No - it is characterized and qualified only for switching operation. The datasheet specifies no h_FE linearity, frequency response, or thermal stability data for analog use. Its low V_CE(sat) design prioritizes saturated-state efficiency over active-region gain consistency.

Is the exposed thermal pad electrically connected to any internal node?

No - the exposed pad is a bare copper thermal slug with no electrical connection to emitter, collector, or base. It must be soldered to a dedicated thermal land on the PCB and may be left floating or grounded for EMI reduction, but grounding does not affect device functionality.

How does PBSS301PD/SG,125 handle reverse-biased base-emitter voltage during fast turn-off?

It tolerates −5 V V_EB continuously per channel, sufficient to suppress minority-carrier injection during hard-switching with negative gate drive or inductive kickback. This eliminates need for external base clamping diodes in most 48 V system designs.

PBSS301PD/SG,125 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: SC-74, SOT-457

Packaging:: Bulk

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 4 A

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

Vce Saturation (Max) @ Ib, Ic:: 420mV @ 600mA, 6A

Current - Collector Cutoff (Max):: 100nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 250 @ 1A, 2V

Power - Max:: 1.1 W

Frequency - Transition:: 80MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 6-TSOP

PBSS301PD/SG,125 FAQ

1.How can I place an order for PBSS301PD/SG,125 through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS301PD/SG,125 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 PBSS301PD/SG,125 reliable?

The price and inventory of PBSS301PD/SG,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS301PD/SG,125 is usually 5 days.

3.What payment methods are accepted for PBSS301PD/SG,125?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS301PD/SG,125 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS301PD/SG,125?

PBSS301PD/SG,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS301PD/SG,125 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 PBSS301PD/SG,125?

For technical support, including PBSS301PD/SG,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS301PD/SG,125 requirements.

6.How does Aetrix verify that PBSS301PD/SG,125 is sourced from the original manufacturer or authorized distributors?

All PBSS301PD/SG,125 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 PBSS301PD/SG,125 meets industry standards.

7.What is the process for return or replacement of PBSS301PD/SG,125?

All PBSS301PD/SG,125 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS301PD/SG,125, 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 PBSS301PD/SG,125 part is unused and in its original packaging.

Return procedure for PBSS301PD/SG,125:

1.Submit a request within 90 days.

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

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