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

Nexperia USA Inc. PBSS5140T/ZLR

Name: PBSS5140T/ZLR
Brand: Nexperia USA Inc.
SKU: PBSS5140T/ZLR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS5140T/ZLR

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: PBSS5140T/ZLR.pdf

Description:: TRANS PNP 40V 1A TO-236AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PBSS5140T from Nexperia is a PNP low V_CEsat transistor in SOT23 package, designed for high-efficiency switching in battery-constrained systems. It delivers −40 V V_CEO, −1 A continuous I_C, 300 mΩ typical R_CEsat at −500 mA/−50 mA drive, and AEC-Q101 qualification - enabling use in mobile phone power rail control and LCD backlight dimming circuits.

For engineers reviewing the PBSS5140T datasheet, PBSS5140T pinout, PBSS5140T application, or PBSS5140T equivalent, key selection criteria include verified low saturation resistance under pulsed high-current conditions, thermal derating behavior on FR4 PCBs, and compatibility with standard SOT23 reflow footprints per Fig. 15.

Technical Context

This PNP bipolar transistor operates with open-base V_CEO = −40 V and supports peak I_CM = −2 A (tp ≤ 1 ms). Its DC current gain h_FE reaches 160 at −1 A / −50 mA drive, and V_CEsat remains ≤ −500 mV under same conditions - confirming suitability for low-loss linear and saturated switching modes.

Thermal performance is defined by two R_th(j-a) values: 417 K/W (standard footprint) and 278 K/W (enhanced 1 cm² collector pad), directly linking layout-dependent power handling to ambient temperature limits up to 150 °C junction rating.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−40 V - Maximum safe collector-emitter voltage with base open; defines rail tolerance in supply switching.
I_C	−1 A - Continuous DC collector current; sets steady-state load capacity in muting or line-switching circuits.
R_CEsat	300–500 mΩ - Collector-emitter saturation resistance at −500 mA/−50 mA; determines conduction loss and self-heating.
h_FE	160 min at −1 A - DC current gain under full-load saturation; enables low base-drive current design.
V_BEsat	≤ −1.1 V - Base-emitter saturation voltage at −1 A/−50 mA; impacts base driver voltage headroom.
f_T	150 MHz - Transition frequency at −10 V/−50 mA; confirms usable bandwidth for fast digital switching.
t_off	260 ns - Turn-off time under −10 V/−0.5 A test conditions; validates response in PWM-driven backlight control.

Pinout & Package

SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body; optimized for automated placement and reflow soldering per IPC-7351A footprint (Fig. 15).

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control input node requiring −50 mA pulsed drive to achieve low R_CEsat; connected to microcontroller GPIO or dedicated driver stage.
2	Emitter (E)	Common reference terminal tied to system ground or positive rail depending on PNP topology; carries full load current.
3	Collector (C)	High-side switched output node; connects to load (e.g., LED string anode or battery-positive path); thermally coupled to PCB pad.

Key Features

Feature	Design Value
Low V_CEsat	≤ −500 mV at −1 A/−100 mA enables <100 mW conduction loss in 1 A loads - reducing thermal stress in sealed handheld enclosures.
AEC-Q101 qualification	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD - supporting use in infotainment power sequencing.
High h_FE at high I_C	160 minimum at −1 A ensures stable saturation with minimal base current - simplifying drive circuitry and lowering MCU GPIO loading.
Thermally enhanced layout support	278 K/W R_th(j-a) with 1 cm² collector pad allows >350 mW continuous dissipation at 25 °C ambient - extending operational margin in compact PCBs.

Applications

Mobile Phone Power Switching

LCD Backlight Control

Use Scenario: Enabling/disabling main battery connection to RF power amplifier modules during sleep/wake cycles.

IC Role / Device Role / Timing Role: High-side PNP switch controlling 3.8 V battery rail; driven by base resistor from PMIC enable signal.

Use Value: 300 mΩ R_CEsat limits voltage drop to <150 mV at 500 mA - preserving RF efficiency and minimizing thermal rise in tight RF layout zones.

Use Scenario: PWM-controlled current sink for white LED strings in smartphone displays.

IC Role / Device Role / Timing Role: Low-saturation PNP switch placed between LED cathodes and ground return path; synchronized to display controller PWM.

Use Value: 260 ns t_off supports >1 MHz PWM frequencies without duty-cycle distortion - enabling precise brightness control and reduced visible flicker.

Supply Line Muting

Battery-Powered Camera Shutter Drive

Use Scenario: Isolating auxiliary sensor rails (e.g., image sensor analog supply) during standby to reduce quiescent current.

IC Role / Device Role / Timing Role: General-purpose PNP muting switch; base biased via pull-up and MCU-controlled NMOS.

Use Value: −100 nA ICEO at 25 °C ensures leakage-induced wake-up currents remain below 100 nA - critical for multi-week standby battery life.

Use Scenario: Driving mechanical shutter solenoid in compact video cameras using single-cell Li-ion battery.

IC Role / Device Role / Timing Role: Peak-current switch delivering −2 A pulses (tp ≤ 1 ms) to solenoid coil; base driven by dedicated gate driver.

Use Value: −2 A I_CM rating supports 10× rated hold current for reliable solenoid actuation - eliminating need for external flyback protection in space-constrained modules.

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
ON Semiconductor NSS40501MR6T1G	V_CEO = −40 V, I_C = −0.5 A, R_CEsat = 450 mΩ typ at −250 mA - lower current rating and higher saturation resistance.	Not suitable for 1 A continuous loads; limited to sub-500 mA muting or biasing functions.	Select only when board space requires smaller footprint (SOT-723) and load current stays below 0.5 A.
Diodes Incorporated DXT51400QE-7	V_CEO = −40 V, I_C = −1 A, R_CEsat = 420 mΩ typ at −500 mA - 40% higher R_CEsat than PBSS5140T.	Higher conduction loss increases thermal demand; requires larger copper area for same 1 A operation.	Acceptable where AEC-Q101 is not required and thermal budget permits +120 mW extra loss at full load.

Compared with NSS40501MR6T1G and DXT51400QE-7, PBSS5140T provides superior 1 A capability with lowest R_CEsat and automotive qualification - making it the preferred choice for thermally constrained, high-reliability portable power switching.

Availability

PBSS5140T is available at Aetrix Electronics and suitable for mobile phone power switching, LCD backlight control, supply line muting, and battery-powered camera shutter drive requiring stable component supply across production ramps and long-life designs.

Supply support for PBSS5140T 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 advanced packaging.

PBSS5140T belongs to Nexperia's low V_CEsat transistor family, engineered specifically for energy-efficient power switching in portable and automotive electronics where thermal density and battery runtime are critical.

FAQ

What is the maximum allowable junction temperature for PBSS5140T?

The absolute maximum junction temperature (T_j) is 150 °C per IEC 60134 limiting values. Operation above this threshold risks permanent degradation. Derating curves in Figure 1 show that total power dissipation must be reduced linearly beyond 25 °C ambient - e.g., to 300 mW at 75 °C ambient on a standard FR4 PCB.

Does PBSS5140T require a heatsink in 1 A continuous operation?

No external heatsink is required if PCB layout follows Nexperia's recommended 1 cm² copper pad for the collector terminal (R_th(j-a) = 278 K/W). Under those conditions, 1 A at 300 mΩ R_CEsat generates 300 mW, resulting in ~83 °C junction rise above 25 °C ambient - well within the 150 °C limit.

Is PBSS5140T compatible with lead-free reflow profiles?

Yes - PBSS5140T is qualified for standard lead-free reflow per JEDEC J-STD-020. The SOT23 package withstands peak temperatures up to 260 °C for 30 seconds. Figure 15 provides the recommended solder land pattern and stencil aperture dimensions for optimal wetting and void control.

How does the AEC-Q101 qualification impact design validation for consumer products?

AEC-Q101 qualification certifies robustness against automotive-grade stress tests (HTGB, TC, H3TRB), which exceed typical consumer requirements. For mobile or industrial designs, this translates to extended field lifetime, improved early-failure immunity, and reduced need for accelerated life testing - though functional safety certification (e.g., ISO 26262) remains separate.

PBSS5140T/ZLR 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:: Obsolete

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 1 A

Voltage - Collector Emitter Breakdown (Max):: 40 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 100mA, 1A

Current - Collector Cutoff (Max):: 100nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 300 @ 100mA, 5V

Power - Max:: 450 mW

Frequency - Transition:: 150MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

PBSS5140T/ZLR FAQ

1.How can I place an order for PBSS5140T/ZLR through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS5140T/ZLR 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 PBSS5140T/ZLR reliable?

The price and inventory of PBSS5140T/ZLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS5140T/ZLR is usually 5 days.

3.What payment methods are accepted for PBSS5140T/ZLR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS5140T/ZLR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS5140T/ZLR?

PBSS5140T/ZLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS5140T/ZLR 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 PBSS5140T/ZLR?

For technical support, including PBSS5140T/ZLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS5140T/ZLR requirements.

6.How does Aetrix verify that PBSS5140T/ZLR is sourced from the original manufacturer or authorized distributors?

All PBSS5140T/ZLR 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 PBSS5140T/ZLR meets industry standards.

7.What is the process for return or replacement of PBSS5140T/ZLR?

All PBSS5140T/ZLR units undergo pre-shipment inspection (PSI). If there is an issue with PBSS5140T/ZLR, 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 PBSS5140T/ZLR part is unused and in its original packaging.

Return procedure for PBSS5140T/ZLR:

1.Submit a request within 90 days.

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

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