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

Nexperia USA Inc. PBSS5250X,115

Name: PBSS5250X,115
Brand: Nexperia USA Inc.
SKU: PBSS5250X,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS5250X,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: PBSS5250X,115.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:2,623

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Product details

Overview

PBSS5250X,115 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 control circuits such as DC/DC converters and LED backlight drivers.

For engineers reviewing the PBSS5250X,115 datasheet, PBSS5250X,115 pinout, PBSS5250X,115 application, or PBSS5250X,115 equivalent, key selection criteria include verified V_CEsat performance at 2 A, thermal resistance under PCB mounting variations, automotive-grade AEC-Q101 qualification, and direct compatibility with SOT89 footprint layouts.

Technical Context

This PNP bipolar junction transistor operates in saturation-switching mode with guaranteed V_CEsat ≤ −380 mV at I_C = −2 A and I_B = −100 mA, enabling minimal conduction loss in high-current, low-voltage load switching. Its h_FE ≥ 100 at full rated current supports robust base drive margin.

Qualified per AEC-Q101, it sustains operation from −65 °C to +150 °C junction temperature and delivers R_th(j-sp) = 16 K/W to solder point-critical for thermally constrained automotive and industrial PCBs with limited copper area.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50 V - Maximum safe collector-emitter voltage with open base; defines blocking capability in supply-line switching.
I_C	−2 A - Continuous DC collector current rating; supports sustained 2 A load switching without derating at T_amb ≤ 25 °C.
V_CEsat	−380 mV @ I_C = −2 A, I_B = −100 mA - Confirmed saturation voltage enabling <0.76 W conduction loss at full current.
h_FE	≥100 @ I_C = −2 A - Minimum DC current gain ensures reliable turn-on with standard 100 mA base drive.
R_th(j-sp)	16 K/W - Junction-to-solder-point thermal resistance on FR4 PCB; enables direct thermal coupling to ground plane or heatsink pad.
AEC-Q101	Qualified - Meets stress-test requirements for automotive discrete semiconductors, including temperature cycling and HTRB.

Pinout & Package

SOT89 (SC-62) plastic surface-mount package: 4.5 mm × 2.5 mm × 1.5 mm body, 1.5 mm lead pitch, single-sided FR4 mounting with collector tab for thermal dissipation.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter (E)	Current exit terminal; connected to higher potential rail in PNP high-side switch configuration.
2	Collector (C)	Main current path terminal; electrically and thermally tied to large copper pad for heat extraction.
3	Base (B)	Control input; requires negative bias relative to emitter to saturate; compatible with 3.3 V/5 V logic via resistor divider.

Key Features

Feature	Design Value
Low V_CEsat	−380 mV max at 2 A enables >95% efficiency in 3.3 V–5 V load switching with <0.76 W loss.
High I_C capability	−2 A continuous rating supports direct driving of relays, buzzers, and LED strings without external amplification.
Thermal performance	R_th(j-sp) = 16 K/W allows stable operation up to 150 °C junction temperature with minimal PCB copper area.
AEC-Q101 qualification	Validated for automotive under-hood and infotainment applications requiring extended temperature and reliability compliance.

Applications

DC/DC Converter Switching

Battery Charger Control

Use Scenario: High-efficiency synchronous rectifier or pre-regulator switch in 5 V–12 V buck converters.

IC Role / Device Role / Timing Role: PNP low-side or high-side switch controlling energy transfer during PWM cycles.

Use Value: −380 mV V_CEsat reduces conduction loss by >40% versus standard PNP transistors, improving converter efficiency at 1–2 A loads.

Use Scenario: Charge-path enable/disable switch isolating battery from charging circuitry during fault conditions.

IC Role / Device Role / Timing Role: Load switch interrupting current flow between charger IC and Li-ion cell.

Use Value: −50 V V_CEO withstands battery overvoltage events; −2 A rating covers fast-charge currents up to 2 C for 1 Ah cells.

LCD Backlight Driver

Inductive Load Interface

Use Scenario: Constant-current sink for white LED strings in automotive instrument clusters or portable displays.

IC Role / Device Role / Timing Role: Linear or PWM-controlled current regulator in series with LED anodes.

Use Value: Stable h_FE ≥ 100 at 1 A ensures precise current mirroring; low V_CEsat minimizes voltage headroom requirement.

Use Scenario: Driving 12 V automotive relays, solenoids, or cooling fans with microcontroller GPIO.

IC Role / Device Role / Timing Role: Saturated switch interfacing low-voltage logic to inductive loads.

Use Value: −50 V V_CEO safely clamps flyback spikes; integrated ESD protection and AEC-Q101 rating ensure field reliability.

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
PN2222A	V_CEsat ≈ −1.2 V @ 500 mA; h_FE drops sharply above 100 mA; no AEC-Q101 qualification.	Not suitable for 2 A continuous loads or automotive environments; limited thermal performance.	Select only for non-automotive, low-current (<500 mA), cost-sensitive prototypes.
MMBT4403	V_CEsat = −750 mV @ 500 mA; rated I_C = −600 mA; TO-236 (SOT-23) package limits power handling.	Inadequate for >1 A loads; higher conduction loss increases thermal stress in compact layouts.	Use only where board space is critical and current remains below 0.5 A with ample derating.

Compared with PN2222A and MMBT4403, PBSS5250X,115 delivers 3× higher current capability, 60% lower V_CEsat, and automotive-grade reliability-making it the sole choice for production-grade 2 A switching in thermally constrained, safety-critical systems.

Availability

PBSS5250X,115 is available at Aetrix Electronics and suitable for DC/DC converters, battery charger control, and LCD backlighting requiring stable component supply across automotive, industrial, and consumer electronics programs.

Supply support for PBSS5250X,115 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.

PBSS5250X,115 belongs to Nexperia's Low V_CEsat Transistor product line, engineered specifically for high-current, low-loss switching in space-constrained power management systems.

FAQ

What is the maximum continuous collector current for PBSS5250X,115?

The PBSS5250X,115 is rated for −2 A continuous collector current (I_C) at ambient temperature ≤ 25 °C on a standard FR4 PCB. Derating applies above this temperature, with full rating maintained up to T_j = 150 °C when thermal design meets R_th(j-a) ≤ 125 K/W.

Is PBSS5250X,115 qualified for automotive use?

Yes-PBSS5250X,115 is fully qualified per AEC-Q101 for discrete semiconductors, including temperature cycling, high-temperature reverse bias, and humidity testing. It is approved for under-hood and cabin applications with operating junction temperatures from −65 °C to +150 °C.

What is the typical V_CEsat at 1 A collector current?

At I_C = −1 A and I_B = −50 mA, V_CEsat is typically −250 mV (max −250 mV per datasheet Table 7). This value is measured under pulsed conditions (t_p ≤ 300 µs, duty cycle ≤ 2%) at 25 °C ambient.

Can PBSS5250X,115 replace a standard PNP transistor like BC807 in existing designs?

Yes-with layout verification. PBSS5250X,115 offers lower V_CEsat, higher I_C, and better thermal performance than BC807, but uses SOT89 instead of SOT23. Pinout differs (E-C-B vs E-B-C), so PCB redesign and base drive recalculation are required for drop-in replacement.

PBSS5250X,115 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

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,115 FAQ

1.How can I place an order for PBSS5250X,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS5250X,115 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,115 reliable?

The price and inventory of PBSS5250X,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS5250X,115 is usually 5 days.

3.What payment methods are accepted for PBSS5250X,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS5250X,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS5250X,115?

PBSS5250X,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS5250X,115 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,115?

For technical support, including PBSS5250X,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS5250X,115 requirements.

6.How does Aetrix verify that PBSS5250X,115 is sourced from the original manufacturer or authorized distributors?

All PBSS5250X,115 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,115 meets industry standards.

7.What is the process for return or replacement of PBSS5250X,115?

All PBSS5250X,115 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS5250X,115, 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,115 part is unused and in its original packaging.

Return procedure for PBSS5250X,115:

1.Submit a request within 90 days.

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

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