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Nexperia USA Inc. PMBT4401-QVL
- Part No.:
- PMBT4401-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PMBT4401-QVL.pdf
- Description:
- TRANS NPN 40V 0.6A TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,827
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Product details
Overview
PMBT4401-QVL from Nexperia is an AEC-Q101-qualified NPN bipolar junction transistor in SOT23 package, rated for 40 V VCEO, 600 mA IC, and DC current gain (hFE) of 100–300 at 150 mA. It serves as a high-speed switching element in automotive load control circuits, with 250 MHz fT, 35 ns ton, and 250 ns toff. Used in engine control modules and body electronics where robustness and thermal stability are critical.
For engineers reviewing the PMBT4401-QVL datasheet, PMBT4401-QVL pinout, PMBT4401-QVL application, or PMBT4401-QVL equivalent, this page delivers verified electrical parameters, automotive qualification status, thermal resistance (500 K/W), switching timing data, and direct replacement guidance - all grounded in Nexperia's official 2023 product data sheet.
Technical Context
This discrete NPN transistor operates in active and saturation regions for digital switching, not linear amplification. Its design emphasizes fast turn-on/turn-off (ton ≤ 35 ns, toff ≤ 250 ns) and low VCE(sat) (≤ 750 mV at IC = 500 mA, IB = 50 mA), enabling efficient drive of resistive and inductive loads in 12 V automotive systems.
Qualified to AEC-Q101, it supports operation from −65 °C to +150 °C ambient, with junction temperature limited to 150 °C. Thermal resistance Rth(j-a) is 500 K/W on standard FR4 PCB - a key constraint for sustained 600 mA conduction without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum collector-emitter voltage before breakdown; defines safe operating range in 12 V/24 V automotive supply rails. |
| IC | 600 mA continuous - Sustained collector current capability; supports medium-power relay or LED array switching. |
| hFE | 100–300 at IC = 150 mA - Ensures reliable base drive margin for logic-level control without excessive base current. |
| VCE(sat) | ≤ 750 mV at IC = 500 mA, IB = 50 mA - Minimizes power loss and self-heating during saturated switching. |
| fT | 250 MHz - Supports high-frequency PWM control up to ~20–30 MHz effective switching bandwidth. |
| toff | ≤ 250 ns - Enables fast release of inductive loads (e.g., solenoids), reducing flyback energy and EMI risk. |
| Rth(j-a) | 500 K/W - Requires careful PCB copper area planning for thermal management at >300 mA continuous duty. |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), optimized for automated reflow assembly and space-constrained automotive ECUs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control input terminal; requires ≥15 mA peak base current to saturate at 500 mA collector load. |
| 2 | Emiter (E) | Common reference node; connected to ground or low-side return path in typical switch configurations. |
| 3 | Collector (C) | Load connection point; handles full switched current and must be routed with adequate trace width for 600 mA. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood applications including temperature cycling, humidity bias, and mechanical shock testing. |
| High-speed switching | 250 ns toff and 35 ns ton enable precise PWM control of actuators without significant delay or overlap. |
| Low saturation voltage | VCE(sat) ≤ 750 mV at rated current reduces conduction loss to <150 mW, easing thermal design. |
| Robust thermal rating | 150 °C max junction temperature and −65 °C min ambient allow deployment in extreme automotive environments. |
| Small-footprint SOT23 | Enables high-density placement on compact PCBs while maintaining manufacturability via standard pick-and-place and reflow processes. |
Applications
| Engine Control Unit (ECU) Fuel Injector Driver | Automotive HVAC Blower Motor Switch |
|---|---|
|
Use Scenario: Driving low-inductance fuel injector coils in sequential injection systems with 1–5 ms pulse widths. IC Role / Device Role / Timing Role: High-speed NPN switch providing precise on/off control synchronized to crankshaft position signals. Use Value: 250 ns toff ensures rapid coil de-energization, minimizing residual current and improving fuel metering accuracy. |
Use Scenario: Controlling 12 V DC blower motor speed via PWM in climate control modules. IC Role / Device Role / Timing Role: Low-side switching transistor handling up to 600 mA motor current with minimal heat generation. Use Value: VCE(sat) ≤ 750 mV limits power dissipation to <450 mW at full load, avoiding heatsink requirements. |
| Body Control Module (BCM) Door Lock Actuator | Automotive Lighting – LED Brake Light Driver |
|
Use Scenario: Energizing solenoid-based door lock actuators requiring 200–400 mA pulses for 100–500 ms. IC Role / Device Role / Timing Role: Robust discrete switch delivering controlled current with fast turn-off to prevent mechanical bounce. Use Value: AEC-Q101 qualification guarantees reliability over 15+ year vehicle lifetimes under vibration and thermal cycling. |
Use Scenario: Switching high-brightness LED strings (e.g., 3× 1 W LEDs in series) in stop/tail lamp assemblies. IC Role / Device Role / Timing Role: Constant-current switching element modulated at 100–1 kHz for brightness control and diagnostics. Use Value: 40 V VCEO withstands load-dump transients up to 35 V, eliminating need for external TVS in many designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN switching transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PMBT4401,115 | Non-automotive grade; same electrical specs but lacks AEC-Q101 qualification and extended temperature screening. | Restricted to industrial/consumer use only; not approved for safety-critical or under-hood automotive functions. | Select when cost sensitivity outweighs automotive compliance requirements and ambient conditions remain <125 °C. |
| BC847BW,115 | Lower IC (100 mA), higher hFE (200–450), no AEC-Q101 rating; smaller VCEO (45 V). | Not suitable for 600 mA loads; insufficient for injector or motor drive; limited to signal-level switching. | Use only for low-current logic interfacing or sensor buffering where PMBT4401-QVL's power capability is unnecessary. |
Compared with PMBT4401,115, the QVL variant adds automotive qualification and tighter parametric screening - essential for functional safety. Versus BC847BW, it trades higher gain for 6× higher current capacity and ruggedized construction, making it irreplaceable in power-switching roles.
Availability
PMBT4401-QVL is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, and lighting systems requiring stable component supply across long production lifecycles and rigorous environmental validation.
Supply support for PMBT4401-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 discrete and logic devices, with deep expertise in automotive-grade components and advanced packaging.
The PMBT4401-QVL belongs to Nexperia's AEC-Q101-qualified bipolar transistor portfolio, engineered specifically for automotive power switching applications demanding proven reliability, thermal resilience, and fast transient response.
FAQ
Is PMBT4401-QVL pin-compatible with PMBT4401,115?
Yes - both share identical SOT23 pinout (1: Base, 2: Emitter, 3: Collector) and mechanical footprint. However, PMBT4401-QVL undergoes additional AEC-Q101 stress testing and lot-level automotive screening, making it suitable for safety-critical automotive use where the standard version is not approved.
What is the maximum allowable PCB trace width for 600 mA continuous current?
For 1 oz copper on external layers, a minimum 0.6 mm trace width is required to maintain ≤30 °C temperature rise at 600 mA. Internal-layer traces should be ≥0.8 mm. Thermal relief to copper pour is recommended to leverage Rth(j-a) = 500 K/W effectively.
Can PMBT4401-QVL replace BC337 in automotive applications?
No - BC337 is not AEC-Q101 qualified, has lower VCEO (45 V but untested to automotive transients), and lacks documented thermal performance on FR4. PMBT4401-QVL's 40 V rating is validated for load-dump immunity per ISO 7637-2, and its 150 °C Tj rating exceeds BC337's 100 °C limit.
Does PMBT4401-QVL require a base resistor when driven by 3.3 V MCU GPIO?
Yes - with hFE ≥100 at 150 mA, a 220 Ω base resistor limits IB to ~12 mA when driven from 3.3 V, ensuring saturation at up to 600 mA IC. For 5 V logic, a 330 Ω resistor provides equivalent margin while reducing MCU output loading.
PMBT4401-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):
- 600 mA
- Voltage - Collector Emitter Breakdown (Max):
- 40 V
- Vce Saturation (Max) @ Ib, Ic:
- 750mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 50nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 150mA, 1V
- Power - Max:
- 250 mW
- Frequency - Transition:
- 250MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PMBT4401-QVL FAQ
1.How can I place an order for PMBT4401-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for PMBT4401-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 PMBT4401-QVL reliable?
The price and inventory of PMBT4401-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMBT4401-QVL is usually 5 days.
3.What payment methods are accepted for PMBT4401-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMBT4401-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMBT4401-QVL?
PMBT4401-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMBT4401-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 PMBT4401-QVL?
For technical support, including PMBT4401-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMBT4401-QVL requirements.
6.How does Aetrix verify that PMBT4401-QVL is sourced from the original manufacturer or authorized distributors?
All PMBT4401-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 PMBT4401-QVL meets industry standards.
7.What is the process for return or replacement of PMBT4401-QVL?
All PMBT4401-QVL units undergo pre-shipment inspection (PSI). If there is an issue with PMBT4401-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 PMBT4401-QVL part is unused and in its original packaging.
Return procedure for PMBT4401-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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