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

Nexperia USA Inc. PBSS3540M,315

Name: PBSS3540M,315
Brand: Nexperia USA Inc.
SKU: PBSS3540M,315
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS3540M,315

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: SC-101, SOT-883

Datasheet:: PBSS3540M,315.pdf

Description:: TRANS PNP 40V 0.5A SOT-883

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PBSS3540M from Nexperia is a PNP low V_CEsat transistor in SOT883 (DFN1006-3) package, rated for −40 V V_CEO, −500 mA I_C, and 440–700 mΩ R_CEsat. It serves as a high-efficiency switching element in low-voltage power management circuits including DC-DC converters and battery charger load switches.

For engineers reviewing the PBSS3540M datasheet, PBSS3540M pinout, PBSS3540M application, or PBSS3540M equivalent, key selection criteria include verified AEC-Q101 qualification, ultra-low saturation resistance at −500 mA, thermal performance on FR4 PCBs, and compatibility with space-constrained automotive and portable electronics designs.

Technical Context

This PNP transistor operates with a typical h_FE of 40 at −500 mA and −2 V V_CE, under pulsed conditions (t_p ≤ 300 µs, δ ≤ 0.02). Its base-emitter turn-on voltage is −1.1 V at −100 mA, and saturation voltage remains ≤ −350 mV under same bias conditions.

The device achieves thermal resistance of 290 K/W when mounted on FR4 with 1 cm² collector pad, and supports peak current up to −1 A in single-pulse mode (t_p ≤ 1 ms). It is fully specified across −55 °C to +150 °C junction temperature range and qualified per AEC-Q101 for automotive use.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−40 V - Maximum safe collector-emitter blocking voltage with open base; defines upper limit for supply rail switching in 12 V/24 V automotive systems.
I_C	−500 mA continuous - Rated DC collector current; supports sustained operation in LED backlight drivers and peripheral switching loads.
R_CEsat	440–700 mΩ - Confirmed on-resistance at −500 mA / −50 mA drive; enables <175 mW conduction loss at full rated current.
V_CEsat	≤ −350 mV - Verified saturation voltage under pulsed −500 mA; reduces heat generation and improves efficiency in high-duty-cycle switching.
h_FE	40 min at −500 mA - Minimum DC current gain ensures reliable base drive margin for digital logic-level control without excessive base current overhead.
T_j max	+150 °C - Maximum junction temperature rating; permits operation in under-hood automotive environments and sealed industrial enclosures.
AEC-Q101	Qualified - Validated for automotive-grade reliability including HTOL, TC, HTRB, and ESD testing; suitable for ASIL-B supporting functions.

Pinout & Package

Package: DFN1006-3 (SOT883), leadless ultra-small plastic package, 1.0 mm × 0.6 mm × 0.48 mm body, 0.35 mm pitch, transparent top view.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control terminal accepting negative current to enable PNP conduction; requires logic-compatible drive (e.g., microcontroller GPIO sinking ≥50 mA).
2	Emitter (E)	High-side reference node; connected to positive supply rail in high-side switch configurations; carries full load current.
3	Collector (C)	Output terminal sourcing current to load; thermally enhanced pad (pin 3) must be soldered to ≥1 cm² copper area for 430 mW power dissipation.

Key Features

Feature	Design Value
Low V_CEsat	≤ −350 mV at −500 mA ensures <0.175 W conduction loss-critical for thermally constrained portable and automotive modules.
AEC-Q101 qualification	Validated for automotive use including temperature cycling, high-temp operating life, and ESD robustness-no requalification needed for Tier-1 designs.
SOT883 footprint	1.0 mm × 0.6 mm body enables placement in <1.5 mm² board area-ideal for wearables, sensor nodes, and multi-rail PMIC companion switches.
High I_CM	−1 A peak rating supports inrush current handling in relay and motor driver applications without secondary protection circuitry.
Thermal performance	290 K/W R_th(j-a) with 1 cm² collector pad allows >400 mW dissipation at +85 °C ambient-enables derating-free design in compact assemblies.

Applications

DC-DC Converter Switch

Battery Charger Load Switch

Use Scenario: High-efficiency synchronous buck converter output stage in automotive infotainment power supplies.

IC Role / Device Role / Timing Role: PNP high-side switch controlling input to LDO or post-regulator; operates in hard-switched, non-overlapping gate timing.

Use Value: 440 mΩ R_CEsat limits conduction loss to <110 mW at 500 mA, reducing thermal load on adjacent SoC and enabling 2-layer PCB layout.

Use Scenario: Reverse-polarity and overcurrent protected charging path for 12 V lead-acid or LiFePO₄ battery banks in telematics units.

IC Role / Device Role / Timing Role: Series pass switch placed between charger IC output and battery terminal; controlled by system MCU during fault detection.

Use Value: −40 V V_CEO withstands load dump transients; AEC-Q101 qualification ensures reliability across 10-year vehicle service life.

LCD Backlight Driver

Inductive Load Driver

Use Scenario: Constant-current dimming switch for white LED strings in automotive instrument cluster displays.

IC Role / Device Role / Timing Role: PWM-controlled high-side current sink; modulated at 1–20 kHz to avoid audible noise while maintaining brightness linearity.

Use Value: −350 mV V_CEsat minimizes voltage headroom loss, allowing operation from 3.3 V rail with ≥2.8 V forward drop across 6-LED string.

Use Scenario: Driving 12 V automotive relays and piezoelectric buzzers in body control modules.

IC Role / Device Role / Timing Role: General-purpose inductive load switch with integrated flyback path handled externally; operated with 10–100 ms ON pulses.

Use Value: −1 A I_CM safely absorbs relay coil energy during turn-off; −6 V V_EBO rating prevents emitter-base breakdown during inductive kickback.

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 NSS3540MZ4T1G	Same SOT883 package, −40 V/−500 mA rating, but R_CEsat = 500–850 mΩ (typical 650 mΩ); h_FE = 35 min at −500 mA.	Marginally higher conduction loss; not AEC-Q101 qualified-requires additional qualification for automotive use.	Select when cost sensitivity outweighs automotive qualification and thermal margin requirements.
Diodes Incorporated DMMT3540-7-F	SOT883 package, −40 V/−500 mA, R_CEsat = 450–750 mΩ, h_FE = 40 min; AEC-Q101 qualified but with lower I_CM (−0.8 A).	Reduced surge capability limits suitability for relay coils with high inductance or long time constants.	Select when footprint compatibility and AEC-Q101 are required, but peak inductive energy is below 10 mJ.

Compared with NSS3540MZ4T1G and DMMT3540-7-F, PBSS3540M delivers tighter R_CEsat tolerance (440–700 mΩ), higher I_CM (−1 A), and identical h_FE-making it optimal for thermally aggressive, high-reliability automotive switching where conduction loss and surge margin are critical.

Availability

PBSS3540M is available at Aetrix Electronics and suitable for automotive body control modules, portable medical device power sequencing, and industrial IoT sensor node load switching requiring stable component supply and long-term lifecycle support.

Supply support for PBSS3540M 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 core expertise in advanced packaging and automotive-qualified components.

PBSS3540M belongs to Nexperia's Low V_CEsat Transistor product line, engineered specifically for high-efficiency, space-constrained power switching in automotive and industrial applications where thermal performance and qualification rigor are mandatory.

FAQ

What is the maximum continuous power dissipation for PBSS3540M on a standard FR4 PCB?

The PBSS3540M delivers 430 mW maximum continuous power dissipation when mounted on an FR4 PCB with a 1 cm² copper pad on the collector terminal (pin 3), per datasheet section 8. This assumes Tamb ≤ 25 °C and accounts for its 290 K/W thermal resistance under those conditions.

Is PBSS3540M suitable for high-frequency switching above 1 MHz?

No-PBSS3540M has a transition frequency f_T of 100–300 MHz, but its intended use is in DC and low-frequency switching (≤100 kHz). The device lacks optimized switching speed parameters like t_f/t_r or stored charge Q_rr, and its h_FE-based drive mechanism makes it unsuitable for RF or Class-E applications.

Can PBSS3540M replace an NPN transistor in the same circuit?

No-PBSS3540M is a PNP device with inverted polarity: emitter connects to higher potential, collector to load, and base driven low to turn on. Direct replacement of an NPN requires circuit topology revision, including signal inversion and supply rail reassignment; its NPN complement is PBSS2540M.

Does the SOT883 package require special reflow profile or stencil design?

Yes-the DFN1006-3 (SOT883) package requires precise solder paste deposition: 0.3 mm wide × 0.4 mm long pads with 0.25 mm stencil thickness and 0.35 mm pitch alignment. Reflow must follow J-STD-020 profile for MSAL3 moisture sensitivity level, with peak temperature ≤260 °C and time above liquidus 60–90 s.

PBSS3540M,315 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: SC-101, SOT-883

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 500 mA

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

Vce Saturation (Max) @ Ib, Ic:: 350mV @ 50mA, 500mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 150 @ 100mA, 2V

Power - Max:: 430 mW

Frequency - Transition:: 300MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-883

PBSS3540M,315 FAQ

1.How can I place an order for PBSS3540M,315 through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS3540M,315 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 PBSS3540M,315 reliable?

The price and inventory of PBSS3540M,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS3540M,315 is usually 5 days.

3.What payment methods are accepted for PBSS3540M,315?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS3540M,315 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS3540M,315?

PBSS3540M,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS3540M,315 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 PBSS3540M,315?

For technical support, including PBSS3540M,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS3540M,315 requirements.

6.How does Aetrix verify that PBSS3540M,315 is sourced from the original manufacturer or authorized distributors?

All PBSS3540M,315 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 PBSS3540M,315 meets industry standards.

7.What is the process for return or replacement of PBSS3540M,315?

All PBSS3540M,315 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS3540M,315, 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 PBSS3540M,315 part is unused and in its original packaging.

Return procedure for PBSS3540M,315:

1.Submit a request within 90 days.

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

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