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Nexperia USA Inc. PBSS2540MB,315
- Part No.:
- PBSS2540MB,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- 3-XFDFN
- Datasheet:
-
PBSS2540MB,315.pdf
- Description:
- TRANS NPN 40V 0.5A DFN1006B-3
- Quantity:
- Payment:
- Shipping:
Inventory:8,429
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Product details
Overview
PBSS2540MB,315 from Nexperia is an AEC-Q101-qualified NPN low VCEsat BISS transistor in a leadless DFN1006B-3 (SOT883B) package, designed for high-efficiency switching in space-constrained DC-DC converters and battery-powered systems. It delivers 40 V VCEO, 500 mA continuous IC, 380–500 mΩ RCEsat at 500 mA/50 mA drive, and operates across –55 °C to 150 °C ambient.
For engineers reviewing the PBSS2540MB,315 datasheet, PBSS2540MB,315 pinout, PBSS2540MB,315 application, or PBSS2540MB,315 equivalent, this device is selected for ultra-low saturation resistance, automotive-grade reliability, compact footprint, and thermal performance on FR4 PCBs with minimal copper area.
Technical Context
This NPN BISS transistor uses a breakthrough low-saturation architecture optimized for high-current switching at low supply voltages (e.g., ≤3.3 V), where conventional small-signal transistors suffer excessive conduction loss. Its 0.37 mm package height and 1.0 × 0.6 mm body enable placement beneath connectors or in stacked modules.
It achieves VCEsat ≤ 250 mV at IC = 500 mA / IB = 50 mA (pulsed), supported by hFE ≥ 50 under same conditions and fT = 250–450 MHz - enabling stable operation in high-frequency synchronous rectification and LED current control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum blocking voltage in common-emitter configuration; supports 24 V automotive supply rails with margin. |
| IC | 500 mA continuous - Sustained collector current without derating on standard FR4; enables direct driving of medium-power LEDs or logic-level loads. |
| RCEsat | 380–500 mΩ at IC = 500 mA, IB = 50 mA - Low conduction loss yields <125 mW dissipation at full load, reducing heatsinking needs. |
| hFE | 50 min at IC = 500 mA - Ensures reliable saturation with modest base drive (e.g., MCU GPIO), minimizing driver stage complexity. |
| fT | 250–450 MHz - Supports stable switching up to ~100 MHz in RF-coupled gate drivers or high-speed PWM dimming circuits. |
| Tj max | 150 °C - Junction temperature limit compatible with AEC-Q101 automotive qualification and extended industrial operation. |
| Package | DFN1006B-3 (SOT883B) - 1.0 × 0.6 × 0.37 mm, leadless, three-terminal surface-mount package with exposed collector pad for thermal relief. |
Pinout & Package
DFN1006B-3 (SOT883B) is a 3-terminal, leadless plastic package with 0.37 mm profile and exposed collector thermal pad. Pin 1 (Base), Pin 2 (Emitter), Pin 3 (Collector) are arranged linearly on the bottom side; top-side marking "0001 0010" identifies PBSS2540MB,315 per binary code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal accepting TTL/CMOS-compatible drive; requires ≥50 mA peak for guaranteed saturation at 500 mA load. |
| 2 | Emitter (E) | Reference node for current sensing and return path; tied to ground or low-side shunt in most switch configurations. |
| 3 | Collector (C) | High-current output terminal with internal thermal pad; soldered directly to PCB copper for 212 K/W Rth(j-a) when using 1 cm² mounting area. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics per stress test requirements - enables drop-in use in qualified designs without requalification. |
| Low RCEsat | 380–500 mΩ reduces I²R loss by >60% vs. standard small-signal transistors at 500 mA, improving efficiency in portable battery chargers. |
| Ultra-small footprint | 1.0 × 0.6 mm body with 0.37 mm height allows routing under fine-pitch ICs or integration into wearables and hearing aids. |
| High ICM | 1 A peak collector current supports short-duration surge handling (e.g., LED inrush, motor stall) without latch-up or degradation. |
| Thermal performance | 212 K/W Rth(j-a) with 1 cm² collector pad enables 590 mW power dissipation - sufficient for continuous 500 mA switching at 25 °C ambient. |
Applications
| DC-DC Conversion | Supply Line Switching |
|---|---|
|
Use Scenario: Synchronous rectifier in 3.3 V buck converter for microcontroller power rail. IC Role / Device Role / Timing Role: Low-side switch replacing Schottky diode to reduce forward voltage drop and improve light-load efficiency. Use Value: 250 mV VCEsat cuts conduction loss by 4× vs. 1 V diode drop at 500 mA, raising conversion efficiency from 82% to 91%. |
Use Scenario: Hot-swap controller for USB-C power delivery input protection. IC Role / Device Role / Timing Role: High-side or low-side load switch enabling controlled inrush current limiting during plug insertion. Use Value: 500 mA continuous rating and 1 A pulse capability handle 3 A transient surges with 10 µs response via external RC timing. |
| Battery Charger | LCD Backlighting |
|
Use Scenario: Charge path FET in single-cell Li-ion linear charger IC. IC Role / Device Role / Timing Role: Precision current regulator controlling CC/CV transition via base current modulation. Use Value: hFE ≥ 50 at 500 mA ensures stable 100 mA charge current regulation with ±2% tolerance using 2 kΩ base resistor. |
Use Scenario: Constant-current driver for white LED strings in automotive instrument clusters. IC Role / Device Role / Timing Role: Linear current sink modulated by PWM signal to adjust brightness without EMI from switching. Use Value: 40 V VCEO withstands 36 V load dump transients; 150 °C Tj max ensures reliability behind dashboard glass. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN low-VCEsat transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PBSS2515MB,315 | 15 V VCEO, 1.5 A IC, 120–180 mΩ RCEsat - lower voltage rating but higher current and lower RCEsat. | Optimized for ≤12 V systems (e.g., USB PD, IoT sensors); unsuitable for 24 V automotive supply switching. | Select when operating voltage ≤15 V and peak current >500 mA is required; verify base drive capability for 1.5 A IC. |
| DMN2004LKQ-7 | 20 V VDS, 4.5 A ID, MOSFET with 30 mΩ RDS(on) - different technology, gate-driven, no base current needed. | Replaces BJT in high-efficiency, high-frequency SMPS where gate drive circuitry exists; not pin-compatible. | Choose for >1 MHz switching or when zero gate current simplifies driver design; requires level-shifting for 3.3 V MCU control. |
Compared with PBSS2540MB,315, PBSS2515MB,315 trades voltage headroom for lower RCEsat and higher current, while DMN2004LKQ-7 shifts to MOSFET topology with superior RDS(on) but adds gate drive complexity and eliminates bipolar linearity for analog current control.
Availability
PBSS2540MB,315 is available at Aetrix Electronics and suitable for automotive body electronics, portable battery chargers, and LCD backlight drivers requiring stable component supply, AEC-Q101 compliance, and ultra-compact packaging.
Supply support for PBSS2540MB,315 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 roots in Philips Semiconductors and headquartered in Nijmegen, Netherlands.
PBSS2540MB,315 belongs to Nexperia's BISS transistor product line, engineered specifically for high-efficiency, low-voltage switching in automotive and portable power management where space, thermal, and reliability constraints dominate design.
FAQ
Is PBSS2540MB,315 suitable for automotive applications?
Yes - it is fully AEC-Q101 qualified per Nexperia's official product data sheet Rev. 1 (2012), tested for temperature cycling, humidity bias, and mechanical shock. It meets automotive requirements for under-hood and cabin electronics including body control modules and infotainment power supplies.
What is the recommended PCB layout for thermal performance?
Use a 1 cm² copper pour connected to Pin 3 (Collector) with ≥4 thermal vias (0.3 mm diameter) to inner ground plane. Maintain 0.2 mm solder mask opening on the collector pad and follow Nexperia's reflow footprint in Figure 11 - this achieves 212 K/W Rth(j-a) and supports 590 mW dissipation.
Can PBSS2540MB,315 replace a standard BC847-type transistor?
No - while both are SOT-23-3 NPN transistors, PBSS2540MB,315 has significantly lower RCEsat (380 mΩ vs. ~300 Ω), higher IC (500 mA vs. 100 mA), and different pinout (SOT883B vs. SOT23). Direct replacement requires PCB redesign and verification of base drive compatibility due to higher IB demand.
What is the maximum allowable base current for continuous operation?
The absolute maximum peak base current is 100 mA (per Table 5), but for continuous DC operation, limit IB to ≤10 mA to avoid thermal runaway - verified by thermal simulations showing junction temperature rise remains within 150 °C at IC = 500 mA with 10 mA IB and 1 cm² copper.
PBSS2540MB,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 40 V
- Vce Saturation (Max) @ Ib, Ic:
- 50mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100µA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 10mA, 2V
- Power - Max:
- 250 mW
- Frequency - Transition:
- 450MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006B-3
PBSS2540MB,315 FAQ
1.How can I place an order for PBSS2540MB,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS2540MB,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 PBSS2540MB,315 reliable?
The price and inventory of PBSS2540MB,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS2540MB,315 is usually 5 days.
3.What payment methods are accepted for PBSS2540MB,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS2540MB,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS2540MB,315?
PBSS2540MB,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS2540MB,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 PBSS2540MB,315?
For technical support, including PBSS2540MB,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS2540MB,315 requirements.
6.How does Aetrix verify that PBSS2540MB,315 is sourced from the original manufacturer or authorized distributors?
All PBSS2540MB,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 PBSS2540MB,315 meets industry standards.
7.What is the process for return or replacement of PBSS2540MB,315?
All PBSS2540MB,315 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS2540MB,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 PBSS2540MB,315 part is unused and in its original packaging.
Return procedure for PBSS2540MB,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PBSS2540MB,315 Tags
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