Nexperia USA Inc. PBSS4041NX,115
- Part No.:
- PBSS4041NX,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
PBSS4041NX,115.pdf
- Description:
- TRANS NPN 60V 6.2A SOT-89
- Quantity:
- Payment:

- Shipping:

Inventory:1,238
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Product details
Overview
PBSS4041NX from Nexperia is a 60 V, 6.2 A NPN low VCE(sat) transistor in SOT89 package, designed as a high-efficiency load switch for automotive and industrial power management. It delivers RCE(sat) = 18 mΩ (typ) at IC = 4 A / IB = 400 mA, supports 15 A peak pulse current, and is AEC-Q101 qualified for under-hood applications including motor drives and battery charging circuits.
For engineers reviewing the PBSS4041NX datasheet, PBSS4041NX pinout, PBSS4041NX application, or PBSS4041NX equivalent, key selection criteria include its ultra-low saturation resistance, thermal performance on FR4 and ceramic PCBs, junction temperature rating of 150 °C, and validated operation in automotive-grade load-switching topologies with fast switching (ton = 85 ns, toff = 820 ns).
Technical Context
This NPN transistor operates as a medium-power, surface-mount load switch with optimized base drive efficiency-achieving hFE = 170 (typ) at IC = 6 A and VCE = 2 V. Its low VCE(sat) (120–210 mV at IC = 6 A / IB = 300 mA) minimizes conduction loss in high-current DC paths.
The device uses a flat-lead SOT89 (SC-62) package with exposed collector pad for enhanced thermal dissipation, supporting up to 2.5 W total power dissipation on ceramic PCBs. Its AEC-Q101 qualification confirms robustness against automotive stress conditions including temperature cycling, humidity, and mechanical shock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 60 V - Maximum blocking voltage across collector-emitter with base open; enables use in 48 V automotive systems and industrial 24–48 V rails. |
| IC | 6.2 A continuous - Sustained DC load current capability without derating at Tamb ≤ 25 °C on standard FR4 PCB. |
| RCE(sat) | 18 mΩ (typ) at IC = 4 A / IB = 400 mA - Directly determines conduction loss (Pcond ≈ IC² × RCE(sat)) in high-efficiency switching designs. |
| toff | 820 ns - Turn-off delay critical for PWM-controlled loads like fans and motors operating up to ~100 kHz. |
| Tj(max) | 150 °C - Enables reliable operation in under-hood environments and sealed enclosures without active cooling. |
| AEC-Q101 | Qualified - Confirmed reliability for automotive applications per stress test requirements including HTGB, HTRB, and temperature cycling. |
Pinout & Package
SOT89 (SC-62) plastic surface-mount package: 3-lead, 1.5 mm pitch, 4.5 mm × 2.5 mm × 1.5 mm body, with exposed collector pad for thermal conduction to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter (E) | Reference node for base drive and current return path; connected to ground or low-side return in high-side switch configurations. |
| 2 | Collector (C) | Main power output terminal; electrically and thermally tied to large PCB copper pour for heat extraction and current handling. |
| 3 | Base (B) | Control input requiring ~400 mA drive for full saturation at 4 A load; logic-level compatible with 3.3 V/5 V microcontrollers via appropriate driver stage. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RCE(sat) | 18 mΩ typ at 4 A - Reduces power loss by >40% vs. standard BJT alternatives, enabling smaller heatsinks or higher ambient operating temperatures. |
| High hFE at high IC | 170 at IC = 6 A - Allows reduced base drive current, lowering gate driver losses and simplifying control circuitry. |
| AEC-Q101 qualification | Validated for automotive use - Eliminates need for additional qualification testing in Tier-1 and OEM power modules. |
| Thermal robustness | Rth(j-a) = 50 K/W on ceramic PCB - Supports 2.5 W dissipation without forced air, suitable for space-constrained engine-control units. |
Applications
| Automotive Fan Control | USB-C Power Delivery Switch |
|---|---|
|
Use Scenario: PWM-controlled 12 V cooling fan in engine bay with ambient up to 105 °C. IC Role / Device Role / Timing Role: High-side NPN load switch driven by MCU GPIO with external base resistor; handles 4.5 A stall current. Use Value: Low RCE(sat) limits self-heating to <15 °C rise at full load, avoiding thermal shutdown during transient overloads. |
Use Scenario: 20 V/3 A load switch in USB-C PD sink path, enabling/disabling power rail to downstream subsystems. IC Role / Device Role / Timing Role: Discrete NPN switch controlled by PD controller's enable signal; operates in linear mode during soft-start. Use Value: Fast toff (820 ns) ensures clean power sequencing and prevents bus glitches during hot-plug events. |
| Industrial Battery Charger | Smart Home Motor Driver |
|
Use Scenario: 48 V Li-ion charger output stage managing charge current up to 6 A with thermal foldback. IC Role / Device Role / Timing Role: Primary pass transistor in constant-current regulation loop; monitored via emitter-sense resistor. Use Value: Stable hFE across –40 °C to 125 °C ensures consistent current regulation without calibration drift. |
Use Scenario: 24 V brushed DC motor driver in smart HVAC damper actuator with duty-cycle-limited operation. IC Role / Device Role / Timing Role: Low-side switch controlling motor direction and speed via H-bridge half-bridge configuration. Use Value: 15 A peak ICM withstands motor inrush currents exceeding 10× rated load, preventing false trip events. |
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 NSS40401LT1G | 60 V VCEO, 4.5 A IC, RCE(sat) = 25 mΩ (typ) at 3 A - lower current rating and higher saturation resistance. | Not AEC-Q101 qualified; limited to commercial-temperature industrial use only. | Select when cost sensitivity outweighs automotive qualification and peak current demands. |
| Diodes Incorporated DXT6011000000000 | 60 V VCEO, 6 A IC, RCE(sat) = 22 mΩ (typ) at 4 A - slightly higher RCE(sat) and no published AEC-Q101 status. | Designed for consumer power tools; lacks automotive stress validation and thermal derating curves. | Prefer for non-automotive 24 V motor control where footprint compatibility (SOT89) is required but qualification is not mandated. |
Compared with PBSS4041NX, both alternatives offer SOT89 compatibility but lack its combination of 6.2 A continuous rating, 18 mΩ RCE(sat), and full AEC-Q101 validation-making PBSS4041NX the only option qualified for safety-critical automotive load switching with minimal thermal margin.
Availability
PBSS4041NX is available at Aetrix Electronics and suitable for automotive fan control, USB-C power delivery switching, and industrial battery charging applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for PBSS4041NX 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 essential efficiency technologies, delivering high-performance discrete, logic, and MOSFET solutions for automotive, industrial, and mobile markets.
PBSS4041NX belongs to Nexperia's AEC-Q101-qualified low VCE(sat) transistor family, engineered specifically for high-reliability power switching in automotive and harsh-environment industrial systems.
FAQ
What is the maximum allowable base current for PBSS4041NX?
The absolute maximum base current (IB) is 1 A, per Table 5 (Limiting Values). However, typical saturation drive uses 400 mA at IC = 4 A (RCE(sat) test condition), and 300 mA at IC = 6 A. Exceeding 1 A risks metallization damage or bond-wire failure, especially under pulsed conditions.
Can PBSS4041NX be used in high-frequency PWM applications above 50 kHz?
Yes-its ton = 85 ns and toff = 820 ns support PWM frequencies up to ~100 kHz with acceptable switching loss. At 50 kHz, turn-on/turn-off energy accounts for <12% of total loss at 4 A, assuming 12 V supply and 50% duty cycle, based on published switching time definitions and typical capacitance values.
How does thermal performance differ between FR4 and ceramic PCB mounting?
On ceramic Al2O3 PCB (standard footprint), Rth(j-a) = 50 K/W enables 2.5 W dissipation at Tamb = 25 °C. On single-sided FR4 (standard footprint), Rth(j-a) = 208 K/W limits usable power to ~0.6 W-requiring larger copper areas or multilayer boards to achieve comparable thermal headroom.
Is there a PNP complement available for bridge or push-pull configurations?
Yes-the PNP complement is PBSS4041PX, specified with identical VCEO = 60 V, IC = 6.2 A, and RCE(sat) = 18 mΩ (typ), enabling matched complementary switching in H-bridge or dual-rail power control circuits without gain or timing mismatch.
PBSS4041NX,115 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):
- 6.2 A
- Voltage - Collector Emitter Breakdown (Max):
- 60 V
- Vce Saturation (Max) @ Ib, Ic:
- 210mV @ 300mA, 6A
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 150 @ 4A, 2V
- Power - Max:
- 2.5 W
- Frequency - Transition:
- 130MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
PBSS4041NX,115 FAQ
1.How can I place an order for PBSS4041NX,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS4041NX,115 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 PBSS4041NX,115 reliable?
The price and inventory of PBSS4041NX,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4041NX,115 is usually 5 days.
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PBSS4041NX,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS4041NX,115 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 PBSS4041NX,115?
For technical support, including PBSS4041NX,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4041NX,115 requirements.
6.How does Aetrix verify that PBSS4041NX,115 is sourced from the original manufacturer or authorized distributors?
All PBSS4041NX,115 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 PBSS4041NX,115 meets industry standards.
7.What is the process for return or replacement of PBSS4041NX,115?
All PBSS4041NX,115 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4041NX,115, 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 PBSS4041NX,115 part is unused and in its original packaging.
Return procedure for PBSS4041NX,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PBSS4041NX,115 Tags

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MMBT3906LT1G
onsemi

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MMBT3904-7-F
Diodes Incorporated

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Diodes Incorporated

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MMBT3904-TP
Micro Commercial Co

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MMBT2222A-7-F
Diodes Incorporated

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BC847B,215
Nexperia USA Inc.

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MMBT2222A-TP
Micro Commercial Co

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