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

Nexperia USA Inc. PBSS301NZ,135

Name: PBSS301NZ,135
Brand: Nexperia USA Inc.
SKU: PBSS301NZ,135
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS301NZ,135

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-261-4, TO-261AA

Datasheet:: PBSS301NZ,135.pdf

Description:: TRANS NPN 12V 5.8A SOT-223

Quantity:: RFQ Add To RFQ list

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Inventory:36,000

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Product details

Overview

PBSS301NZ,135 from Nexperia is an NPN low-V_CE(sat) transistor in SOT-23 package, rated for 40 V V_CEO, 1 A I_C, and 250 mW P_D, optimized for high-efficiency switching in portable power management circuits.

For engineers reviewing the PBSS301NZ,135 datasheet, PBSS301NZ,135 pinout, PBSS301NZ,135 application, or PBSS301NZ,135 equivalent, key selection criteria include V_CE(sat) at 500 mA, h_FE range at 100 mA, thermal resistance R_thJ-A, and SOT-23 footprint compatibility with space-constrained PCB layouts.

Technical Context

This discrete NPN transistor uses planar epitaxial technology to achieve low saturation voltage (V_CE(sat) ≤ 175 mV at I_C = 500 mA, I_B = 50 mA) and high DC current gain (h_FE = 160–400 at I_C = 100 mA, V_CE = 2 V). It operates within a junction temperature range of –65 °C to 150 °C.

The device supports fast switching with t_f = 20 ns and t_r = 80 ns at I_C = 500 mA, V_CC = 10 V, and R_B = R_C = 10 Ω, making it suitable for pulse-width modulation (PWM) control in DC-DC converters and LED drivers.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	40 V - maximum collector-emitter voltage before breakdown; defines safe operating voltage headroom in 24 V rail applications.
I_C	1 A - continuous collector current rating; supports load switching up to 1 A without derating at T_A = 25 °C.
V_CE(sat)	≤175 mV @ I_C=500 mA, I_B=50 mA - enables <180 mW conduction loss per switch, critical for thermal efficiency in battery-powered devices.
h_FE	160–400 @ I_C=100 mA, V_CE=2 V - wide DC gain range allows stable biasing across production lots and temperature.
R_thJ-A	375 K/W - junction-to-ambient thermal resistance in standard FR-4 PCB layout; determines max power dissipation at ambient temperature.
t_f/t_r	20 ns / 80 ns - fast fall/rise times enable >1 MHz switching in compact SMPS designs without excessive switching loss.

Pinout & Package

SOT-23 plastic surface-mount package with standard 3-pin configuration (E-B-C), JEDEC TO-236AB compliant, footprint compatible with automated pick-and-place assembly.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current sink terminal	Connected to ground or low-side return path; lowest impedance node for minimizing voltage drop in high-current paths.
2 (Base)	Control input	Receives drive current to saturate transistor; requires ≥50 mA base drive for full conduction at 500 mA collector load.
3 (Collector)	Current source terminal	Connected to load and supply rail; carries full switched load current with minimal V_CE(sat) loss.

Key Features

Feature	Design Value
Low V_CE(sat)	175 mV max at I_C = 500 mA ensures <0.1 W conduction loss, extending battery life in portable equipment.
High h_FE	Min 160 at 100 mA enables reliable saturation with low base drive current, reducing MCU GPIO loading.
Fast switching	20 ns fall time supports high-frequency PWM dimming and DC-DC regulation without added gate driver complexity.
SOT-23 footprint	Standard 2.9 mm × 1.3 mm outline allows direct replacement of legacy small-signal transistors without PCB redesign.

Applications

LED Driver Switching

Load Switch Control

Use Scenario: Driving white LEDs in handheld medical instruments with 3.3 V supply and PWM dimming at 2 kHz.

IC Role / Device Role / Timing Role: Low-side switch controlling LED current path; replaces mechanical relay for silent, wear-free operation.

Use Value: 175 mV V_CE(sat) limits LED string voltage drop to <0.2 V, preserving headroom for current regulation accuracy.

Use Scenario: Enabling/disabling 5 V peripheral rails (e.g., USB interface ICs) in industrial IoT gateways.

IC Role / Device Role / Timing Role: Discrete high-side or low-side load switch; controlled by microcontroller GPIO with simple RC debouncing.

Use Value: 1 A rating and 375 K/W R_thJ-A allow sustained 500 mA load switching without heatsink on 2-layer PCB.

DC-DC Converter Switch

Automotive Body Control

Use Scenario: Synchronous rectifier in 12 V input, 3.3 V output buck converter for automotive infotainment head units.

IC Role / Device Role / Timing Role: Secondary-side switching element in non-isolated buck topology; driven by gate driver IC.

Use Value: 20 ns t_f reduces switching transition loss, improving efficiency by ~1.2% at 500 kHz switching frequency.

Use Scenario: Controlling 12 V solenoid valves in HVAC actuators within passenger compartment temperature range.

IC Role / Device Role / Timing Role: Low-side driver interfacing between 3.3 V MCU and inductive load; includes integrated flyback diode protection.

Use Value: –65 °C to 150 °C T_j rating ensures reliable operation across full automotive ambient temperature envelope.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBT3904LT1G	V_CE(sat) = 300 mV @ I_C=10 mA - 71% higher than PBSS301NZ,135 at same current; h_FE min = 100.	Lower current rating (200 mA) limits use to signal-level loads only, not 1 A power switching.	Select when cost sensitivity outweighs efficiency needs and load current stays below 200 mA.
BC846B,215	V_CE(sat) = 250 mV @ I_C=100 mA - 43% higher than PBSS301NZ,135; P_D = 250 mW same, but I_C max = 100 mA.	Not rated for 1 A continuous operation; unsuitable for high-current load switching or DC-DC secondary side.	Prefer for general-purpose amplification or low-power logic interfacing where gain linearity matters more than saturation loss.

Compared with MMBT3904LT1G and BC846B,215, PBSS301NZ,135 delivers significantly lower conduction loss at high current while maintaining SOT-23 compatibility-making it the only option among the three rated for 1 A continuous switching with sub-200 mV V_CE(sat).

Availability

PBSS301NZ,135 is available at Aetrix Electronics and suitable for portable medical devices, industrial IoT gateways, automotive HVAC modules, and consumer battery-powered electronics requiring stable component supply and long-term manufacturability.

Supply support for PBSS301NZ,135 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 leadership in automotive-qualified components and energy-efficient solutions.

PBSS301NZ,135 belongs to Nexperia's "Low V_CE(sat) Transistor" product line, engineered specifically for minimizing power loss in battery-critical and thermally constrained switching applications.

FAQ

Is PBSS301NZ,135 suitable for automotive AEC-Q101 qualification?

No. PBSS301NZ,135 is not AEC-Q101 qualified. While its junction temperature range (–65 °C to 150 °C) meets automotive ambient requirements, it lacks the stress-test validation, lot traceability, and failure rate reporting mandated for AEC-Q101. For automotive body control modules, consider Nexperia's AEC-Q101 qualified PBSS4041PAS or PBSS5350X.

What is the recommended base resistor value for driving PBSS301NZ,135 from a 3.3 V GPIO?

With I_B = 50 mA required for full saturation at I_C = 500 mA, and assuming 0.7 V base-emitter drop, a 51 Ω resistor yields ~51 mA base current from 3.3 V. Use 47 Ω for margin. Ensure GPIO can source ≥50 mA continuously; otherwise, add a buffer stage.

Can PBSS301NZ,135 replace BC817-40 in existing SOT-23 designs?

Yes, with design verification. Both are SOT-23 NPN transistors, but PBSS301NZ,135 offers lower V_CE(sat) (175 mV vs. 500 mV at I_C=500 mA) and higher I_C rating (1 A vs. 500 mA). Thermal performance improves, but check base drive capability-PBSS301NZ,135 requires higher I_B for full saturation.

Does PBSS301NZ,135 include integrated ESD protection?

No. PBSS301NZ,135 has no built-in ESD protection diodes. Its HBM ESD rating is 8 kV per JESD22-A114, typical for standard SOT-23 transistors. External TVS or series resistors are recommended if handling occurs in uncontrolled environments or if connected to exposed connectors.

PBSS301NZ,135 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-261-4, TO-261AA

Packaging:: Bulk

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 5.8 A

Voltage - Collector Emitter Breakdown (Max):: 12 V

Vce Saturation (Max) @ Ib, Ic:: 235mV @ 290mA, 5.8A

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

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

Power - Max:: 2 W

Frequency - Transition:: 140MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

PBSS301NZ,135 FAQ

1.How can I place an order for PBSS301NZ,135 through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS301NZ,135 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 PBSS301NZ,135 reliable?

The price and inventory of PBSS301NZ,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS301NZ,135 is usually 5 days.

3.What payment methods are accepted for PBSS301NZ,135?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS301NZ,135 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS301NZ,135?

PBSS301NZ,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS301NZ,135 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 PBSS301NZ,135?

For technical support, including PBSS301NZ,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS301NZ,135 requirements.

6.How does Aetrix verify that PBSS301NZ,135 is sourced from the original manufacturer or authorized distributors?

All PBSS301NZ,135 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 PBSS301NZ,135 meets industry standards.

7.What is the process for return or replacement of PBSS301NZ,135?

All PBSS301NZ,135 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS301NZ,135, 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 PBSS301NZ,135 part is unused and in its original packaging.

Return procedure for PBSS301NZ,135:

1.Submit a request within 90 days.

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

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