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

Nexperia USA Inc. PBSS5250X,135

Name: PBSS5250X,135
Brand: Nexperia USA Inc.
SKU: PBSS5250X,135
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS5250X,135

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: PBSS5250X,135.pdf

Description:: TRANS PNP 50V 2A SOT-89

Quantity:: RFQ Add To RFQ list

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Inventory:3,122

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Product details

Overview

PBSS5250X,135 from Nexperia is a PNP low V_CEsat transistor in SOT89 package, rated for −50 V V_CEO, −2 A continuous collector current, and −380 mV V_CEsat at I_C = −2 A / I_B = −100 mA. It serves as a high-efficiency switching element in low-voltage power management circuits including DC/DC converters and LED drivers.

For engineers reviewing the PBSS5250X,135 datasheet, PBSS5250X,135 pinout, PBSS5250X,135 application, or PBSS5250X,135 equivalent, key selection criteria include verified V_CEsat performance at 2 A, thermal resistance under PCB mounting variants, and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This PNP bipolar junction transistor operates with fixed base-emitter control and delivers low saturation voltage through optimized epitaxial structure and emitter geometry. Its −380 mV V_CEsat at −2 A enables reduced conduction loss in high-current switching paths.

Designed for surface-mount operation on FR4 PCBs, it supports multiple thermal configurations: R_th(j-a) ranges from 225 K/W (standard footprint) to 80 K/W (enhanced 1 cm² collector pad), enabling flexible thermal design in space-constrained applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50 V - Maximum safe collector-emitter blocking voltage with open base
I_C	−2 A - Continuous DC collector current rating at T_amb ≤ 25 °C
V_CEsat	−380 mV - Confirmed saturation voltage at −2 A / −100 mA drive, directly reducing I²R losses
h_FE	100 - Minimum DC current gain at −2 A pulsed, ensuring reliable base drive sizing
R_CEsat	160 mΩ - Effective on-state resistance derived from V_CEsat/I_C, critical for thermal modeling
AEC-Q101	Qualified - Validated per Automotive Electronics Council stress test standard for discrete semiconductors

Pinout & Package

SOT89 (SC-62) plastic surface-mount package: 3-lead, 1.5 mm pitch, 4.5 mm × 2.5 mm × 1.5 mm body; collector tab forms exposed thermal pad on lead 2.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter	Main current exit path; connected to ground or low-side return in PNP switch configuration
2	Collector	Main current entry path; thermally coupled to PCB copper area for heat dissipation
3	Base	Control input requiring −100 mA drive for full saturation at 2 A load

Key Features

Feature	Design Value
Low V_CEsat	−380 mV at −2 A ensures <150 mW conduction loss, minimizing heatsink requirements
High I_C capability	−2 A continuous rating supports compact power stage designs without parallel devices
Thermal flexibility	R_th(j-a) adjustable from 225 to 80 K/W via PCB copper area-enables scalable thermal design
AEC-Q101 qualification	Validated for automotive ambient temperature range (−40 °C to +150 °C) and reliability stress tests

Applications

DC/DC Converters

Battery Chargers

Use Scenario: Synchronous rectification or high-side switch in buck converter output stage operating at 3.3–12 V input.

IC Role / Device Role / Timing Role: PNP low-side switch controlling energy transfer timing during off-phase; driven by PWM controller.

Use Value: −380 mV V_CEsat reduces conduction loss by >40% vs. standard PNP transistors, improving efficiency at 2 A load.

Use Scenario: Constant-current regulation and battery disconnect in portable Li-ion charger modules.

IC Role / Device Role / Timing Role: Load switch isolating battery from charging circuit during fault or standby; controlled by microcontroller GPIO.

Use Value: −50 V V_CEO headroom accommodates transient spikes in 12 V automotive systems; AEC-Q101 ensures field reliability.

LCD Backlight Drivers

Inductive Load Control

Use Scenario: Current-regulated LED string driver in automotive instrument clusters or infotainment displays.

IC Role / Device Role / Timing Role: Linear or PWM-controlled current sink for white LED strings; base driven by analog dimming signal.

Use Value: Stable h_FE ≥100 at 1 A enables precise current matching across multiple strings without feedback compensation.

Use Scenario: Relay coil driver in vehicle body control modules (BCM) managing door locks or lighting relays.

IC Role / Device Role / Timing Role: High-current PNP switch supplying relay coil with fast turn-on/turn-off controlled by MCU output.

Use Value: −2 A I_C rating handles 100–500 mA relay coils with margin; integrated flyback protection compatibility via external diode.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP low V_CEsat transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBT5401-7-F	V_CEsat = −400 mV @ −100 mA; lower I_C rating (−600 mA); no AEC-Q101 qualification	Suitable only for low-power signal switching, not 2 A loads or automotive environments	Select when cost sensitivity outweighs current capability and qualification requirements
PN2907A	V_CEsat = −1.6 V @ −500 mA; TO-92 package; higher thermal resistance; no automotive qualification	Limited to prototyping or non-critical consumer applications due to poor efficiency and packaging	Use only for educational or low-volume legacy designs where SOT89 footprint is not required

Compared with MMBT5401-7-F and PN2907A, PBSS5250X,135 uniquely combines 2 A current handling, sub-400 mV V_CEsat, SOT89 thermal scalability, and AEC-Q101 compliance-making it the sole option for production-grade automotive and industrial power switches.

Availability

PBSS5250X,135 is available at Aetrix Electronics and suitable for DC/DC converters, battery chargers, and LCD backlighting requiring stable component supply across automotive, industrial, and medical device programs.

Supply support for PBSS5250X,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 essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and mobile markets.

PBSS5250X,135 belongs to Nexperia's Low V_CEsat Transistor product line, engineered specifically for high-efficiency power switching in space- and thermally-constrained applications where minimizing conduction loss is critical.

FAQ

What is the maximum continuous collector current for PBSS5250X,135?

The PBSS5250X,135 is rated for −2 A continuous collector current at T_amb ≤ 25 °C with standard FR4 PCB mounting. Derating applies above 25 °C ambient, and peak current capability reaches −5 A under pulsed conditions (tp ≤ 300 µs, duty cycle ≤ 2%). This rating is validated per IEC 60134 limiting values and confirmed in Table 5 of the official datasheet.

Is PBSS5250X,135 qualified for automotive use?

Yes, PBSS5250X,135 is fully qualified to AEC-Q101 standards for discrete semiconductors, covering temperature cycling, humidity testing, and high-temperature operating life. It supports ambient temperatures from −40 °C to +150 °C and is approved for under-hood and body-control module applications per Nexperia's official qualification report.

How does the SOT89 package affect thermal performance?

The SOT89 package uses lead 2 (collector) as an exposed thermal pad. With a 1 cm² copper area, R_th(j-a) drops to 125 K/W; with 6 cm², it reaches 90 K/W. These values are measured on FR4 PCB per JEDEC JESD51-2 and enable predictable junction temperature estimation without external heatsinks in most 2 A applications.

What is the typical V_CEsat at full rated current?

At I_C = −2 A and I_B = −100 mA (pulsed, tp ≤ 300 µs), the typical V_CEsat is −380 mV, as specified in Table 7 of the datasheet. This value is measured at T_amb = 25 °C and reflects actual on-state voltage under production-representative drive conditions-not extrapolated or simulated.

PBSS5250X,135 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-243AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

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

Voltage - Collector Emitter Breakdown (Max):: 50 V

Vce Saturation (Max) @ Ib, Ic:: 320mV @ 200mA, 2A

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 200 @ 1A, 2V

Power - Max:: 1 W

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-89

PBSS5250X,135 FAQ

1.How can I place an order for PBSS5250X,135 through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS5250X,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 PBSS5250X,135 reliable?

The price and inventory of PBSS5250X,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS5250X,135 is usually 5 days.

3.What payment methods are accepted for PBSS5250X,135?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS5250X,135 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS5250X,135?

PBSS5250X,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS5250X,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 PBSS5250X,135?

For technical support, including PBSS5250X,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS5250X,135 requirements.

6.How does Aetrix verify that PBSS5250X,135 is sourced from the original manufacturer or authorized distributors?

All PBSS5250X,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 PBSS5250X,135 meets industry standards.

7.What is the process for return or replacement of PBSS5250X,135?

All PBSS5250X,135 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS5250X,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 PBSS5250X,135 part is unused and in its original packaging.

Return procedure for PBSS5250X,135:

1.Submit a request within 90 days.

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

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