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Nexperia USA Inc. PBSS4140T-QVL
- Part No.:
- PBSS4140T-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PBSS4140T-QVL.pdf
- Description:
- TRANS NPN 40V 1A TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,592
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Product details
Overview
PBSS4140T-QVL from Nexperia is a 40 V, 1 A NPN low VCE(sat) transistor in SOT23 package, designed for high-efficiency switching in space-constrained automotive and portable electronics. It delivers RCE(sat) = 260 mΩ (typ) at IC = 500 mA / IB = 50 mA, supports 2 A peak current, and is AEC-Q101 qualified for under-hood and infotainment power control.
For engineers reviewing the PBSS4140T-QVL datasheet, PBSS4140T-QVL pinout, PBSS4140T-QVL application, or PBSS4140T-QVL equivalent, key selection criteria include verified low saturation resistance, thermal performance on FR4 PCBs, automotive qualification status, and SOT23 footprint compatibility with high-density layouts.
Technical Context
This NPN transistor operates as a saturated switch with VCE(sat) ≤ 500 mV at IC = 1 A / IB = 100 mA and exhibits hFE ≥ 200 at IC = 1 A. Its breakdown ratings-VCEO = 40 V, VEBO = 5 V-define safe operating limits for 12 V–24 V automotive supply rails.
Thermal design is enabled by Rth(j-a) = 278 K/W (with 1 cm² collector pad) and Tj(max) = 150 °C, supporting continuous operation in ambient temperatures up to 125 °C when derated per limiting values.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum collector-emitter voltage before breakdown; enables use in 24 V automotive systems with margin. |
| IC | 1 A continuous - Rated DC collector current; supports load switching for LCD backlights and battery protection circuits. |
| RCE(sat) | 260 mΩ (typ) - Low on-resistance reduces conduction loss and self-heating during sustained switching. |
| hFE | 200 (min) at IC = 1 A - Ensures reliable saturation with modest base drive (e.g., 5 mA MCU GPIO). |
| Tj(max) | 150 °C - Junction temperature limit enabling operation in engine bay or sealed handheld enclosures. |
| AEC-Q101 | Qualified - Meets stress test requirements for discrete semiconductors in automotive applications. |
Pinout & Package
SOT23 plastic surface-mounted package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pitch), optimized for automated placement and reflow soldering on FR4 PCBs with standard footprint per Figure 7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B) | Base | Control input requiring ~100 mA peak base current for full saturation at 1 A collector load. |
| 2 (E) | Emitter | Reference node tied to system ground or low-side return path; carries full load current. |
| 3 (C) | Collector | High-side switched output; connects to load (e.g., backlight LED string or motor driver stage). |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | ≤ 500 mV at IC = 1 A / IB = 100 mA - Minimizes power dissipation (≤ 500 mW) in high-duty-cycle switching. |
| AEC-Q101 qualification | Stress-tested per automotive discrete standard - Validated for temperature cycling, HTRB, and ESD robustness in vehicle ECUs. |
| Thermal performance | Rth(j-a) = 278 K/W with 1 cm² copper pad - Enables stable operation at 1 A without external heatsinking. |
| Small-footprint SOT23 | 2.9 mm × 1.3 mm outline - Supports miniaturized designs in mobile phones, camera modules, and ADAS sensors. |
Applications
| Automotive Infotainment Power Switching | LCD Backlight Control |
|---|---|
|
Use Scenario: Switching 12 V supply to display backlight drivers in head units and digital instrument clusters. IC Role / Device Role / Timing Role: Low-side saturated switch controlling current path to parallel LED strings. Use Value: 260 mΩ RCE(sat) limits voltage drop to <150 mV at 600 mA, preserving brightness and reducing thermal load on PCB. |
Use Scenario: Enabling/disabling CCFL or LED backlight in portable medical displays and industrial HMIs. IC Role / Device Role / Timing Role: High-speed on/off switch synchronized with PWM dimming signals. Use Value: 150 MHz fT ensures clean turn-on/turn-off edges at >10 kHz dimming frequencies without ringing. |
| Battery Protection Circuitry | Mobile Device Supply Line Switching |
|
Use Scenario: Reverse-polarity and overcurrent protection in 3.7 V Li-ion battery packs for power tools. IC Role / Device Role / Timing Role: Low-VCE(sat) series switch in charge/discharge path with integrated sense resistor. Use Value: 40 V VCEO accommodates battery stack voltages up to 36 V while maintaining <500 mV dropout at 1 A. |
Use Scenario: Isolating auxiliary rails (e.g., USB OTG, camera sensor) in smartphones and action cameras. IC Role / Device Role / Timing Role: Load switch controlled by application processor GPIO with fast enable/disable response. Use Value: AEC-Q101 qualification ensures reliability across temperature extremes (-40 °C to +85 °C ambient). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN low-VCE(sat) switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40501MR6T1G | VCEO = 40 V, IC = 1.2 A, RCE(sat) = 300 mΩ (typ) at same bias; SOT-23 package. | Higher IC rating but 15% higher RCE(sat); not AEC-Q101 qualified. | Select when automotive qualification is unnecessary and 200 mA extra current headroom is required. |
| Diodes Incorporated DXTN4010P5-7 | VCEO = 40 V, IC = 1 A, RCE(sat) = 450 mΩ (typ); AEC-Q101 qualified; SOT-23 package. | Higher RCE(sat) increases conduction loss by ~73% vs. PBSS4140T-QVL at 500 mA. | Select only if supply-chain constraints require Diodes Inc. sourcing; expect higher thermal rise in compact layouts. |
Compared with NSS40501MR6T1G and DXTN4010P5-7, PBSS4140T-QVL provides the lowest verified RCE(sat) among AEC-Q101-qualified SOT23 NPN transistors at 1 A, delivering superior efficiency in thermally constrained automotive and portable designs.
Availability
PBSS4140T-QVL is available at Aetrix Electronics and suitable for automotive infotainment systems, portable medical displays, and battery-powered industrial HMIs requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for PBSS4140T-QVL 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 logic, discrete, and MOSFET devices, with leadership in automotive-qualified components.
PBSS4140T-QVL belongs to Nexperia's Automotive Logic and Discretes product line, engineered specifically for efficient, robust switching in 12 V–24 V automotive subsystems and portable electronics with stringent thermal and reliability demands.
FAQ
What is the maximum allowable base current for continuous operation?
The absolute maximum peak base current (IBM) is 1 A per single pulse (tp ≤ 1 ms), but continuous operation requires limiting IB to ≤ 100 mA to maintain VCE(sat) ≤ 500 mV at IC = 1 A and avoid thermal runaway. Derating is necessary above Tamb = 25 °C per the thermal characteristics table.
Can PBSS4140T-QVL replace a standard general-purpose NPN transistor like BC847?
No - PBSS4140T-QVL is optimized for low-saturation switching, not linear amplification. Its hFE is specified only at IC = 1 A (≥200), unlike BC847 which guarantees hFE across µA–mA ranges. Substituting it in analog gain stages risks distortion and instability due to uncharacterized small-signal behavior.
Is the SOT23 footprint compatible with wave soldering processes?
Yes - Nexperia provides a dedicated wave soldering footprint (Figure 8) with 1.4 mm pad width and 2.2 mm spacing. The device supports wave soldering when mounted with preferred transport direction aligned and solder mask defined per IPC-7351B Class L standards.
Does the AEC-Q101 qualification cover all temperature ranges listed in the datasheet?
Yes - AEC-Q101 qualification includes testing across the full specified ambient temperature range (−65 °C to +150 °C), including temperature cycling, high-temperature reverse bias, and unbiased high-temperature storage. The 150 °C Tj(max) and −65 °C Tstg limits are validated under this qualification.
PBSS4140T-QVL 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:
- Active
- Transistor Type:
- NPN
- 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 @ 500mA, 5V
- Power - Max:
- 300 mW
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PBSS4140T-QVL FAQ
1.How can I place an order for PBSS4140T-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS4140T-QVL 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 PBSS4140T-QVL reliable?
The price and inventory of PBSS4140T-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4140T-QVL is usually 5 days.
3.What payment methods are accepted for PBSS4140T-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4140T-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS4140T-QVL?
PBSS4140T-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS4140T-QVL 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 PBSS4140T-QVL?
For technical support, including PBSS4140T-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4140T-QVL requirements.
6.How does Aetrix verify that PBSS4140T-QVL is sourced from the original manufacturer or authorized distributors?
All PBSS4140T-QVL 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 PBSS4140T-QVL meets industry standards.
7.What is the process for return or replacement of PBSS4140T-QVL?
All PBSS4140T-QVL units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4140T-QVL, 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 PBSS4140T-QVL part is unused and in its original packaging.
Return procedure for PBSS4140T-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PBSS4140T-QVL Tags
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