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Nexperia USA Inc. PBSS4240T-QVL
- Part No.:
- PBSS4240T-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PBSS4240T-QVL.pdf
- Description:
- TRANS NPN 40V 2A TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,224
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Product details
Overview
PBSS4240T-QVL from Nexperia is a 40 V, 2 A NPN low VCE(sat) transistor in SOT23 package, designed for high-efficiency switching in automotive and portable power systems. It delivers 140 mΩ typical RCE(sat) at 500 mA/50 mA drive, supports 3 A peak current, and is AEC-Q101 qualified for under-hood applications.
For engineers reviewing the PBSS4240T-QVL datasheet, PBSS4240T-QVL pinout, PBSS4240T-QVL application, or PBSS4240T-QVL equivalent, key selection criteria include VCE(sat) at 2 A, thermal resistance (260 K/W with 1 cm² collector pad), AEC-Q101 qualification status, and SOT23 footprint compatibility with space-constrained PCB layouts.
Technical Context
This NPN transistor operates as a low-loss switch in DC/DC converters and battery management circuits, where minimal conduction loss is critical. Its 140–200 mΩ RCE(sat) enables efficient operation at 500 mA–2 A collector currents with base drive up to 200 mA.
The device features a maximum VCEO of 40 V and junction temperature rating of 150 °C, supporting robust performance in automotive ambient conditions (−40 °C to +125 °C). Thermal resistance is specified at 260 K/W when mounted on FR4 with a 1 cm² collector copper pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum allowable collector-emitter voltage before breakdown in open-base configuration |
| IC | 2 A continuous - Sustained collector current capability without derating at Tamb ≤ 25 °C |
| RCE(sat) | 140–200 mΩ - Low on-resistance enabling <0.1 V drop at 500 mA, reducing I²R losses |
| VCE(sat) | 130–180 mV @ 1 A - Confirmed saturation voltage ensuring minimal power dissipation during switching |
| hFE | 150–250 @ 2 A - High DC current gain supports stable saturation with moderate base drive |
| Tj max | 150 °C - Junction temperature limit defining safe operating area under transient load |
| Ptot | 480 mW @ 25 °C - Total power dissipation capacity with standard FR4 mounting |
Pinout & Package
Package: SOT23 (TO-236AB), surface-mounted plastic package measuring 2.9 mm × 1.3 mm × 1.0 mm with 1.9 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B) | Base | Control terminal accepting 50–200 mA pulsed base current to saturate the transistor |
| 2 (E) | Emitter | Current return path; internally connected to substrate; requires low-impedance ground routing |
| 3 (C) | Collector | Main current-carrying terminal; thermally enhanced via exposed pad in layout (1 cm² recommended) |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | 130–180 mV at 1 A enables >98% efficiency in 5 V load-switching applications |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| High current capability | 3 A peak (1 ms pulse) supports motor start-up surges and flash capacitor discharge |
| Thermal performance | 260 K/W Rth(j-a) with optimized PCB layout ensures stable operation at 125 °C ambient |
Applications
| Supply Line Switching | Battery Management |
|---|---|
Use Scenario: Hot-swap protection and load disconnect in 12 V automotive subsystems. IC Role / Device Role / Timing Role: NPN switch controlling power delivery to infotainment or ADAS modules. Use Value: 140 mΩ RCE(sat) limits voltage drop to <70 mV at 500 mA, preserving system rail integrity. | Use Scenario: Cell balancing and charge path control in 3S Li-ion battery packs. IC Role / Device Role / Timing Role: Discrete switch enabling/disabling charging current to individual cells. Use Value: AEC-Q101 qualification ensures long-term reliability in cyclic charge/discharge environments. |
| DC/DC Converter | Strobe Flash Unit |
Use Scenario: Synchronous rectification in 5 V → 3.3 V buck converter for ADAS camera modules. IC Role / Device Role / Timing Role: Low-side switch replacing Schottky diode to reduce conduction loss. Use Value: 180 mV VCE(sat) at 1 A cuts forward voltage by >400 mV vs. typical 0.6 V diode, improving efficiency by ~3%. | Use Scenario: High-current flash capacitor discharge in automotive interior lighting. IC Role / Device Role / Timing Role: Fast-turn-on switch delivering 2 A pulse to xenon/LED flash array. Use Value: 240–320 mV VCE(sat) at 2 A ensures <640 mW instantaneous dissipation during 300 µs pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN low-VCE(sat) transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40201LT1G | VCEO = 40 V, IC = 2 A, RCE(sat) = 160–240 mΩ - slightly higher saturation resistance | Not AEC-Q101 qualified; rated for industrial, not automotive use | Select when AEC-Q101 compliance is not required and cost sensitivity outweighs thermal margin |
| Diodes Incorporated DXTN20020CTR | VCEO = 20 V, IC = 2 A, RCE(sat) = 120–180 mΩ - lower voltage rating, tighter RCE(sat) spread | Limited to ≤20 V systems; unsuitable for 12 V automotive supply rails with transients | Prefer only in 5 V/3.3 V logic-level switching where 40 V headroom is unnecessary |
Compared with NSS40201LT1G and DXTN20020CTR, PBSS4240T-QVL provides guaranteed AEC-Q101 qualification and 40 V VCEO headroom for automotive 12 V systems with load-dump transients, while maintaining competitive RCE(sat) and thermal performance.
Availability
PBSS4240T-QVL is available at Aetrix Electronics and suitable for automotive body electronics, portable medical devices, and industrial battery-powered equipment requiring stable component supply and long-term lifecycle support.
Supply support for PBSS4240T-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 specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components.
PBSS4240T-QVL belongs to Nexperia's Automotive Logic and Power portfolio, engineered specifically for robust, low-loss switching in harsh-environment automotive power management and load control systems.
FAQ
What is the maximum allowable base current for continuous operation?
The absolute maximum peak base current is 300 mA per datasheet limiting values, but for continuous DC operation, IB must be limited to ensure junction temperature remains ≤150 °C. At IC = 2 A and Tamb = 25 °C, 200 mA pulsed (δ ≤ 0.02) is specified; sustained DC base current should not exceed 50 mA unless thermal derating is applied based on actual PCB layout and ambient conditions.
Is PBSS4240T-QVL compatible with lead-free reflow soldering profiles?
Yes - PBSS4240T-QVL is qualified for lead-free reflow soldering per JEDEC J-STD-020. The recommended profile uses a peak temperature of 260 °C for ≤10 seconds, with ramp rates and soak times aligned to the SOT23 footprint shown in Figure 2 of the datasheet. No special pre-bake is required for standard moisture sensitivity level (MSL) 1 handling.
How does the 140 mΩ RCE(sat) translate to power loss at 1 A?
At IC = 1 A, RCE(sat) = 140 mΩ yields Ploss = I² × R = 1² × 0.14 = 140 mW. This assumes typical conditions (Tamb = 25 °C, pulsed operation). Under continuous 1 A DC, self-heating raises RCE(sat), increasing loss to ~160–180 mW depending on PCB thermal design - verified via thermal characterization data in Table 6.
Can PBSS4240T-QVL replace a standard general-purpose NPN transistor like BC847?
No - PBSS4240T-QVL is optimized for high-current, low-saturation switching (2 A, <200 mV VCE(sat)), whereas BC847 is a 100 mA small-signal transistor with VCE(sat) > 300 mV at 10 mA. Substituting it in high-current roles risks thermal runaway and premature failure due to excessive power dissipation and insufficient current gain at >100 mA.
PBSS4240T-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):
- 2 A
- Voltage - Collector Emitter Breakdown (Max):
- 40 V
- Vce Saturation (Max) @ Ib, Ic:
- 320mV @ 200mA, 2A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 350 @ 100mA, 2V
- Power - Max:
- 300 mW
- Frequency - Transition:
- 230MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PBSS4240T-QVL FAQ
1.How can I place an order for PBSS4240T-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS4240T-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 PBSS4240T-QVL reliable?
The price and inventory of PBSS4240T-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4240T-QVL is usually 5 days.
3.What payment methods are accepted for PBSS4240T-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4240T-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS4240T-QVL?
PBSS4240T-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS4240T-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 PBSS4240T-QVL?
For technical support, including PBSS4240T-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4240T-QVL requirements.
6.How does Aetrix verify that PBSS4240T-QVL is sourced from the original manufacturer or authorized distributors?
All PBSS4240T-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 PBSS4240T-QVL meets industry standards.
7.What is the process for return or replacement of PBSS4240T-QVL?
All PBSS4240T-QVL units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4240T-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 PBSS4240T-QVL part is unused and in its original packaging.
Return procedure for PBSS4240T-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PBSS4240T-QVL Tags
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