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Nexperia USA Inc. PBSS4250X,135
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- Part No.:
- PBSS4250X,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
PBSS4250X,135.pdf
- Description:
- TRANS NPN 50V 2A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:4,708
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Product details
Overview
PBSS4250X,135 from Nexperia is an AEC-Q101-qualified NPN low-VCEsat transistor in SOT89 package, rated for 50 V VCEO, 2 A continuous IC, and 380 mV VCEsat at 2 A/100 mA drive, used as a high-efficiency switching element in automotive power management and DC/DC converter output stages.
For engineers reviewing the PBSS4250X,135 datasheet, PBSS4250X,135 pinout, PBSS4250X,135 application, or PBSS4250X,135 equivalent, key selection criteria include its 150 °C Tj rating, 160 mΩ RCEsat, AEC-Q101 qualification, thermal resistance of 125 K/W on 1 cm² copper pad, and compatibility with 3.3 V–5 V logic-level base drive in low-voltage peripheral drivers.
Technical Context
This discrete NPN transistor operates as a saturated switch in linear-regulated and PWM-controlled power paths. Its design centers on minimizing conduction loss via ultra-low VCEsat (≤380 mV) and high hFE (≥150 at 2 A), enabling direct drive from microcontroller GPIOs without external amplification.
Thermal performance is defined by junction-to-solder-point resistance of 16 K/W and junction-to-ambient values dependent on PCB copper area (125 K/W at 1 cm², 90 K/W at 6 cm²), supporting reliable operation in space-constrained automotive modules where forced airflow is absent.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum blocking voltage across collector-emitter with base open; supports 24 V automotive rail with margin. |
| IC (continuous) | 2 A - Continuous collector current capability at Tamb ≤ 25 °C; enables driving relays, LEDs, and small motors directly. |
| VCEsat @ 2 A | 380 mV - Low saturation voltage reduces power dissipation to 760 mW at full load, lowering thermal stress. |
| hFE @ 2 A | 150 - Sufficient DC current gain to sustain saturation with 13.3 mA base current, compatible with 3.3 V MCU outputs. |
| RCEsat | 160 mΩ - Enables predictable I²R loss modeling in thermal design and efficiency calculations. |
| Tj max | 150 °C - Junction temperature limit aligned with AEC-Q101 automotive reliability requirements. |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control, body electronics, and infotainment power stages. |
Pinout & Package
SOT89 (SC-62) plastic surface-mount package: 3-pin, 1.5 mm pitch, 4.5 mm × 2.5 mm × 1.5 mm body, with exposed collector tab for thermal conduction to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter (E) | Reference node for current return path; tied to ground or low-side reference in high-side switch configurations. |
| 2 | Collector (C) | Main power output terminal; electrically and thermally connected to large copper pour for heat dissipation. |
| 3 | Base (B) | Control input requiring ~100 mA peak drive for full saturation; compatible with standard logic buffers and MCU GPIOs. |
Key Features
| Feature | Design Value |
|---|---|
| Low VCEsat | 380 mV at 2 A ensures <1 W conduction loss, reducing heatsink requirements in sealed automotive enclosures. |
| AEC-Q101 qualification | Validated for automotive temperature cycling, humidity, and mechanical shock per JESD22 standards. |
| High ICM | 5 A peak collector current supports inductive load turn-off transients (e.g., relay coil flyback) without secondary clamping. |
| 16 K/W Rth(j-sp) | Enables precise thermal coupling to solder point, critical for predictive lifetime modeling in ASIL-B systems. |
| 100 MHz fT | Supports fast switching in PWM frequencies up to 500 kHz with minimal delay, suitable for compact DC/DC converters. |
Applications
| Automotive Body Control Module | USB-C Power Delivery Switch |
|---|---|
|
Use Scenario: Driving door lock actuators and interior lighting loads in 12 V vehicle electrical architecture. IC Role / Device Role / Timing Role: Low-side switch controlling 1–2 A resistive/inductive loads with <1 µs turn-on delay and robust ESD immunity. Use Value: 380 mV VCEsat limits self-heating to <1 W under continuous duty, eliminating need for thermal derating in ambient temperatures up to 85 °C. |
Use Scenario: Enabling/disabling 5 V/3 A USB-C power path in portable docking stations. IC Role / Device Role / Timing Role: High-reliability load switch replacing MOSFETs where gate drive voltage margin is limited. Use Value: 150 hFE allows full saturation using 3.3 V logic, avoiding level-shifter complexity while maintaining <100 ns propagation delay. |
| LCD Backlight Driver | Industrial Sensor Power Gate |
|
Use Scenario: Controlling white LED strings (12–24 V, 1.5 A) in automotive instrument clusters. IC Role / Device Role / Timing Role: Constant-current switch operating in linear/PWM hybrid mode with analog dimming interface. Use Value: 50 V VCEO accommodates LED string voltage spikes during hot-plug events, preventing catastrophic failure. |
Use Scenario: Isolating 24 V sensor supply rails in PLC I/O modules during fault conditions. IC Role / Device Role / Timing Role: Fail-safe power gate activated by FPGA or safety controller with diagnostic feedback via emitter sensing. Use Value: 150 °C Tj rating and AEC-Q101 qualification ensure operational integrity in industrial environments with extended temperature cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-VCEsat NPN switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40501MR6T1G | 40 V VCEO, 1.5 A IC, 450 mV VCEsat @ 1.5 A - lower voltage rating and higher saturation drop. | Not qualified to AEC-Q101; suitable only for commercial-grade consumer power switches. | Select when cost sensitivity outweighs automotive compliance and 50 V margin is unnecessary. |
| Diodes Incorporated DXT52500QE-13 | 50 V VCEO, 2 A IC, 420 mV VCEsat @ 2 A, SOT89-3 - slightly higher VCEsat and no AEC-Q101 documentation. | Rated for industrial temp range (−55 °C to +150 °C) but lacks automotive qualification evidence. | Choose when sourcing flexibility is prioritized and AEC-Q101 traceability is not contractually required. |
Compared with NSS40501MR6T1G and DXT52500QE-13, PBSS4250X,135 delivers superior thermal efficiency (380 mV vs ≥420 mV), guaranteed automotive qualification, and tighter hFE distribution-critical for consistent base drive design across production batches.
Availability
PBSS4250X,135 is available at Aetrix Electronics and suitable for automotive body control modules, USB-C power delivery systems, and industrial sensor power gating requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant traceability.
Supply support for PBSS4250X,135 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 energy-efficient power solutions.
PBSS4250X,135 belongs to Nexperia's "Low VCEsat Transistor" product line, engineered specifically for high-efficiency switching in automotive and industrial power management where thermal constraints and AEC-Q101 compliance are mandatory.
FAQ
Is PBSS4250X,135 pin-compatible with PBSS5250X?
Yes, PBSS4250X,135 (NPN) and PBSS5250X (PNP) share identical SOT89 pinout (E-C-B), enabling complementary pair designs in H-bridge or dual-rail switching circuits without layout changes. Both use the same thermal pad footprint and reflow profile.
What is the maximum recommended base current for continuous operation?
The absolute maximum base current is 0.5 A, but for continuous 2 A collector operation, the datasheet specifies 100 mA base drive at 25 °C ambient. Derating to 70 mA is advised above 70 °C to maintain saturation and avoid thermal runaway.
Does PBSS4250X,135 require an external flyback diode when driving relays?
While the device withstands 5 A peak ICM, inductive kickback energy must still be clamped externally. A 1N4007 or Schottky diode across the relay coil is required to prevent VCE overshoot beyond 50 V and ensure long-term reliability.
Can PBSS4250X,135 be used in linear regulator pass-transistor applications?
No-it is optimized for saturated switching, not linear operation. Its SOA curve does not support safe DC operation above 1 A at >5 V VCE; use dedicated pass transistors like BD139 or MJD122 for linear regulation.
PBSS4250X,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 2 A
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Vce Saturation (Max) @ Ib, Ic:
- 320mV @ 200mA, 2A
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 1A, 2V
- Power - Max:
- 1 W
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
PBSS4250X,135 FAQ
1.How can I place an order for PBSS4250X,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS4250X,135 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 PBSS4250X,135 reliable?
The price and inventory of PBSS4250X,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4250X,135 is usually 5 days.
3.What payment methods are accepted for PBSS4250X,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4250X,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS4250X,135?
PBSS4250X,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS4250X,135 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 PBSS4250X,135?
For technical support, including PBSS4250X,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4250X,135 requirements.
6.How does Aetrix verify that PBSS4250X,135 is sourced from the original manufacturer or authorized distributors?
All PBSS4250X,135 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 PBSS4250X,135 meets industry standards.
7.What is the process for return or replacement of PBSS4250X,135?
All PBSS4250X,135 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4250X,135, 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 PBSS4250X,135 part is unused and in its original packaging.
Return procedure for PBSS4250X,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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