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Nexperia USA Inc. PBSS4350SSJ
- Part No.:
- PBSS4350SSJ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
PBSS4350SSJ.pdf
- Description:
- TRANS 2NPN DUAL 50V 2.7A 8-SO
- Quantity:
- Payment:
- Shipping:
Inventory:6,480
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Product details
Overview
PBSS4350SSJ from Nexperia is a dual NPN low VCEsat BISS transistor in SO8 (SOT96-1) package, designed for high-efficiency switching in space-constrained applications. It delivers 50 V VCEO, 2.7 A continuous collector current per transistor, and ultra-low 90–130 mΩ RCEsat at IC = 2 A / IB = 200 mA - enabling compact motor/fan drive stages in automotive body electronics.
For engineers reviewing the PBSS4350SSJ datasheet, PBSS4350SSJ pinout, PBSS4350SSJ application, or PBSS4350SSJ equivalent, this device is selected for dual low-side switching where thermal efficiency, PCB area reduction, and stable hFE > 300 at high IC are critical design requirements.
Technical Context
This dual NPN transistor integrates two independent BISS (Breakthrough In Small Signal) cells sharing a common SO8 thermally enhanced leadframe. Each channel supports 50 V blocking and operates with VCEsat ≤ 340 mV at IC = 2.7 A / IB = 270 mA, enabled by optimized epitaxial structure and low-resistance emitter-base metallization.
Thermal performance is defined across three mounting conditions: Rth(j-a) = 87 K/W on ceramic Al2O3, 144 K/W on FR4 with 1 cm² collector pad, and 227 K/W on standard FR4 - directly supporting layout-driven thermal management in automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Enables use in 24 V automotive systems with ≥2× safety margin against load dump transients. |
| IC (continuous) | 2.7 A per transistor - Supports driving small DC motors, cooling fans, or solenoids without external heatsinking. |
| RCEsat | 90–130 mΩ at IC = 2 A / IB = 200 mA - Reduces conduction loss to <120 mW per channel under typical load, minimizing self-heating. |
| hFE | 120–180 at IC = 2.7 A - Ensures reliable saturation with modest base drive (IB = 270 mA), easing MCU GPIO or driver IC selection. |
| toff | 520 ns - Enables PWM switching up to ~300 kHz while maintaining low switching loss in duty-cycled loads. |
| Tj max | 150 °C - Rated for under-hood automotive environments with validated derating curves for FR4 and ceramic substrates. |
Pinout & Package
Package: SO8 (SOT96-1), 8-lead plastic small outline, 3.9 mm body width, thermally optimized for double-sided PCB mounting with exposed collector pads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter TR1 | Low-impedance emitter connection for first NPN transistor; routed to ground plane for minimal loop inductance. |
| 2 | Base TR1 | Control input for TR1; requires 270 mA drive at IC = 2.7 A to ensure full saturation. |
| 3 | Emitter TR2 | Emitter of second independent NPN transistor; electrically isolated from TR1 emitter. |
| 4 | Base TR2 | Independent control input for TR2; enables asynchronous dual-switching without cross-talk. |
| 5 & 6 | Collector TR2 | Parallel collector terminals for TR2 - reduce current density and improve thermal spreading to PCB copper. |
| 7 & 8 | Collector TR1 | Parallel collector terminals for TR1 - support 2.7 A per channel with <0.55 W dissipation on standard FR4. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RCEsat | 90–130 mΩ enables <120 mW conduction loss per channel at 2 A, reducing thermal stress in sealed enclosures. |
| Dual independent NPN topology | Two fully isolated transistors in one SO8 package save >40% PCB area vs. discrete SOT23 solutions. |
| High hFE at high IC | hFE ≥ 120 at IC = 2.7 A ensures robust saturation with standard logic-level drivers, eliminating need for Darlington stages. |
| Thermally enhanced SO8 | Exposed collector pins (5/6/7/8) provide direct thermal path to PCB copper, achieving Rth(j-a) = 87 K/W on ceramic substrate. |
Applications
| Automotive HVAC Fan Control | Body Control Module (BCM) Load Switching |
|---|---|
|
Use Scenario: Driving dual 24 V DC blower motors in climate control systems with PWM speed regulation. IC Role / Device Role / Timing Role: Dual low-side switch providing independent on/off and PWM control for left/right fan circuits. Use Value: Low RCEsat minimizes heat generation inside sealed HVAC housings; dual-channel integration reduces component count and routing complexity. |
Use Scenario: Controlling door lock actuators, mirror heaters, and interior lighting in centralized BCM designs. IC Role / Device Role / Timing Role: High-current, thermally robust switching element replacing mechanical relays for solid-state load management. Use Value: 2.7 A per channel supports peak inrush currents of solenoids/heaters; 150 °C Tj rating ensures reliability in under-dash temperature environments. |
| Industrial Fan Arrays | Medical Equipment Ventilation Systems |
|
Use Scenario: Powering redundant cooling fans in industrial PLC cabinets requiring silent, maintenance-free operation. IC Role / Device Role / Timing Role: Dual-channel switching device enabling staggered start-up and fault-isolated operation. Use Value: Independent transistor channels allow graceful degradation - failure of one channel preserves partial cooling functionality. |
Use Scenario: Regulating airflow in portable ventilators where size, efficiency, and EMI control are critical. IC Role / Device Role / Timing Role: Low-noise, low-loss switching element for precision fan speed control in battery-powered devices. Use Value: 520 ns toff supports clean PWM edges with minimal switching noise; low VCEsat extends battery runtime by reducing power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual NPN switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40201MR6T1G | SO8 dual NPN, VCEO = 40 V, IC = 2 A, RCEsat = 150 mΩ @ IC = 1.5 A | Lower voltage/current rating; not suitable for 24 V automotive load dump scenarios. | Select when operating below 30 V with lower thermal demands and cost sensitivity. |
| Diodes Incorporated DMMT3904W-7-F | SOT363 dual NPN, VCEO = 40 V, IC = 200 mA, RCEsat = 300 mΩ @ IC = 100 mA | Micro-power package; insufficient for >500 mA loads; no thermal enhancement. | Use only for signal-level dual switching, not power switching applications. |
Compared with NSS40201MR6T1G and DMMT3904W-7-F, PBSS4350SSJ uniquely combines 50 V rating, 2.7 A current capability, and sub-130 mΩ RCEsat in SO8 - making it the only option qualified for thermally demanding dual-switch automotive power stages.
Availability
PBSS4350SSJ is available at Aetrix Electronics and suitable for automotive HVAC systems, body control modules, industrial fan arrays, and medical ventilation equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PBSS4350SSJ 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 essential semiconductors for automotive, industrial, and consumer markets.
PBSS4350SSJ belongs to Nexperia's BISS transistor product line, engineered specifically for high-efficiency, medium-power switching in space- and thermal-constrained applications such as automotive body electronics and industrial controls.
FAQ
What is the maximum safe operating current for each transistor in PBSS4350SSJ?
The absolute maximum continuous collector current per transistor is 2.7 A at Tamb ≤ 25 °C on standard FR4 PCB. Derating applies above 25 °C: at 100 °C ambient, maximum IC drops to approximately 1.4 A per channel based on the 0.55 W Ptot limit and thermal resistance curve.
Can PBSS4350SSJ replace mechanical relays in automotive applications?
Yes - its 2.7 A per channel rating, 50 V VCEO, and 150 °C junction temperature make it suitable for replacing 24 V automotive relays in loads like fans, locks, and heaters. Unlike relays, it offers silent operation, no contact wear, and precise PWM control without arcing risks.
How does the dual-collector pin configuration (pins 5/6 and 7/8) improve thermal performance?
Pins 5/6 serve as parallel collectors for TR2 and pins 7/8 for TR1 - doubling copper connection area per channel. This reduces current density at solder joints and improves heat transfer to PCB copper, lowering Rth(j-sp) to 40 K/W and enabling higher sustained power dissipation than single-pin alternatives.
Is PBSS4350SSJ compliant with AEC-Q101 for automotive use?
Yes - PBSS4350SSJ is AEC-Q101 qualified for automotive applications. Its qualification includes stress testing for temperature cycling, humidity, HTRB, and ESD per AEC-Q101 Rev D, with full test reports available from Nexperia upon request.
PBSS4350SSJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- 2 NPN (Dual)
- Current - Collector (Ic) (Max):
- 2.7A
- Voltage - Collector Emitter Breakdown (Max):
- 50V
- Vce Saturation (Max) @ Ib, Ic:
- 340mV @ 270mA, 2.7A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 1A, 2V
- Power - Max:
- 750mW
- Frequency - Transition:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
PBSS4350SSJ FAQ
1.How can I place an order for PBSS4350SSJ through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS4350SSJ 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 PBSS4350SSJ reliable?
The price and inventory of PBSS4350SSJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4350SSJ is usually 5 days.
3.What payment methods are accepted for PBSS4350SSJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4350SSJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS4350SSJ?
PBSS4350SSJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS4350SSJ 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 PBSS4350SSJ?
For technical support, including PBSS4350SSJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4350SSJ requirements.
6.How does Aetrix verify that PBSS4350SSJ is sourced from the original manufacturer or authorized distributors?
All PBSS4350SSJ 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 PBSS4350SSJ meets industry standards.
7.What is the process for return or replacement of PBSS4350SSJ?
All PBSS4350SSJ units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4350SSJ, 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 PBSS4350SSJ part is unused and in its original packaging.
Return procedure for PBSS4350SSJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PBSS4350SSJ Tags
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