Nexperia USA Inc. PBSS4330PASX
- Part No.:
- PBSS4330PASX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- 3-UDFN Exposed Pad
- Datasheet:
-
PBSS4330PASX.pdf
- Description:
- TRANS NPN 30V 3A DFN2020D-3
- Quantity:
- Payment:

- Shipping:

Inventory:15,000
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Product details
Overview
PBSS4330PAS from Nexperia is a 30 V, 3 A NPN low VCE(sat) transistor in an ultra-thin DFN2020D-3 (SOT1061D) leadless package, designed for high-efficiency switching in power management and battery-driven systems. It delivers RCE(sat) = 75–100 mΩ at IC = 3 A / IB = 300 mA, supports continuous operation up to Tj = 175 °C, and features side-wettable flanks for AOI-compatible solder joint inspection.
For engineers reviewing the PBSS4330PAS datasheet, PBSS4330PAS pinout, PBSS4330PAS application, or PBSS4330PAS equivalent, this device is selected for compact, thermally demanding loadswitch and charging-circuit designs where low conduction loss and PCB area reduction are critical.
Technical Context
This NPN transistor operates as a medium-power, low-saturation-voltage switch with DC current gain (hFE) of 180–310 at IC = 3 A and VCE = 2 V. Its thermal design leverages an exposed collector pad for direct PCB heat sinking, enabling Ptot = 2.5 W on 4-layer FR4 with 1 cm² copper pad.
Switching performance includes ton = 63 ns and toff = 270 ns under VCC = 9 V, IC = 2 A conditions, while fT = 100–210 MHz confirms suitability for high-speed digital switching-not RF amplification. The device is non-automotive qualified per revision v.2 (2023).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 30 V - Maximum blocking voltage across collector-emitter with base open; defines safe operating range in loadswitch applications. |
| IC | 3 A continuous - Rated DC collector current; supports sustained motor/fan drive or battery charging paths without derating at 25 °C ambient. |
| RCE(sat) | 75–100 mΩ at IC = 3 A / IB = 300 mA - Low on-resistance minimizes I²R losses and self-heating in high-current switching nodes. |
| hFE | 180–310 at VCE = 2 V, IC = 3 A - High current gain enables efficient base drive with modest IB, reducing driver-stage component count. |
| Tj(max) | 175 °C - Junction temperature limit allows operation in sealed enclosures or high-ambient industrial environments without forced cooling. |
| fT | 100–210 MHz - Transition frequency confirms fast switching capability suitable for PWM frequencies up to several MHz. |
| VCE(sat) | 220–300 mV at IC = 3 A / IB = 300 mA - Ultra-low saturation voltage directly reduces power dissipation versus standard bipolar transistors. |
Pinout & Package
Encapsulated in the DFN2020D-3 (SOT1061D) package: ultra-thin (0.65 mm max height), 2 mm × 2 mm body, leadless construction with side-wettable flanks for automated optical inspection. Exposed collector pad provides thermal and electrical path to PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control input terminal; requires ~300 mA drive for full saturation at 3 A collector current. |
| 2 | Emitter (E) | Current return path; internally connected to substrate ground plane; must be routed with low-inductance trace. |
| 3 | Collector (C) | High-current output terminal; electrically and thermally tied to exposed bottom pad for PCB heat sinking. |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | 220–300 mV at rated 3 A load - Reduces conduction loss by >50% vs. standard bipolar transistors, improving system efficiency. |
| Side-wettable flanks | Visible solder joints on package edges - Enables 100% automated optical inspection (AOI) without X-ray, lowering manufacturing defect escape rate. |
| Thermal enhancement | Exposed collector pad with Rth(j-a) = 60 K/W on 4-layer FR4 - Doubles power handling vs. standard SOT packages under identical board layout. |
| High-temperature operation | Rated for continuous use up to Tj = 175 °C - Eliminates need for thermal derating in enclosed power modules or automotive under-hood proximity. |
| Medium power density | 2.5 W total power dissipation in 4 mm² footprint - Delivers comparable performance to larger SOT-23 or TO-252 devices in space-constrained designs. |
Applications
| Load Switching | Battery Charging Control |
|---|---|
|
Use Scenario: Power rail enable/disable in portable medical monitors with Li-ion battery backup. IC Role / Device Role / Timing Role: NPN switch controlling 3 A load current between battery and main system rail; driven by microcontroller GPIO. Use Value: 220 mV VCE(sat) limits dropout to <0.25 V at full load, preserving battery runtime and avoiding brownout during peak current events. |
Use Scenario: USB-C PD programmable power supply output stage regulating 5–20 V, 3 A charging current. IC Role / Device Role / Timing Role: Low-side current switch in linear or hybrid charge-path architecture; handles transient surges during adapter hot-plug. Use Value: 100 mΩ RCE(sat) ensures <0.3 W conduction loss at 3 A, minimizing thermal stress on PCB and enabling single-layer thermal relief design. |
| Motor/Fan Drive | Power Management in IoT Gateways |
|
Use Scenario: 12 V DC fan control in industrial edge gateway with ambient temperature up to 70 °C. IC Role / Device Role / Timing Role: Medium-power switching element in PWM-controlled fan driver; operated at 25 kHz to avoid audible noise. Use Value: 175 °C Tj(max) and 60 K/W thermal resistance allow reliable 3 A fan drive without heatsink, even at elevated ambient temperatures. |
Use Scenario: Always-on auxiliary power domain supervisor in smart meter with real-time clock and memory backup. IC Role / Device Role / Timing Role: Loadswitch isolating supercapacitor backup circuit from main supply during mains failure detection. Use Value: Side-wettable flanks ensure AOI-verified solder integrity on high-reliability meter PCBs, meeting IEC 62052-11 solder joint inspection requirements. |
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) = 110 mΩ @ 2 A - Higher voltage rating but lower current and higher saturation resistance. | Preferred in 24 V industrial control where overvoltage margin >30 V is required; less efficient at 3 A loads. | Select when system requires ≥40 V blocking capability and 2 A current suffices; verify base drive compatibility due to different hFE profile. |
| Diodes Incorporated DXTN3020P5-7 | VCEO = 30 V, IC = 3 A, RCE(sat) = 95 mΩ @ 3 A - Same voltage/current rating but 20% higher RCE(sat); SOT-89 package with higher thermal resistance. | Suitable for through-hole or legacy SMT lines using SOT-89 footprints; not AOI-compatible due to lack of side-wettable flanks. | Choose only if board assembly uses SOT-89 tooling or requires through-hole fallback; expect ~15% higher junction temperature rise at same current. |
Compared with PBSS4330PAS, NSS40201LT1G trades current capability and efficiency for higher voltage headroom, while DXTN3020P5-7 matches ratings but sacrifices thermal performance and AOI support-making PBSS4330PAS optimal for space- and reliability-critical 3 A switching where 30 V suffices.
Availability
PBSS4330PAS is available at Aetrix Electronics and suitable for loadswitching, battery charging control, motor/fan drive, and IoT power management requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for PBSS4330PAS 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 semiconductors, delivering high-performance, reliable components for automotive, industrial, mobile, and consumer markets.
PBSS4330PAS belongs to Nexperia's low VCE(sat) transistor product line, engineered specifically for high-efficiency, high-density power switching in battery-powered and thermally constrained applications.
FAQ
What is the maximum continuous collector current for PBSS4330PAS at 70 °C ambient?
At Tamb = 70 °C, the device sustains 3 A continuous collector current when mounted on a 4-layer FR4 PCB with 1 cm² copper pad for the collector, based on its 60 K/W Rth(j-a) and 175 °C Tj(max). Derating is not required below 100 °C ambient under this board condition.
Does PBSS4330PAS support automatic optical inspection (AOI)?
Yes-its DFN2020D-3 package features side-wettable flanks, allowing full visual inspection of solder fillets on all three terminals. This enables 100% AOI coverage without X-ray, meeting IPC-A-610 Class 2/3 solder joint acceptability requirements.
Can PBSS4330PAS replace a MOSFET in low-side switching applications?
It can functionally replace logic-level N-channel MOSFETs in ≤3 A, ≤30 V low-side switches where gate drive current and PCB area are constrained-but requires ~300 mA base drive versus MOSFET's capacitive gate. Use only when bipolar drive capability exists and VGS(th) matching is unnecessary.
Is PBSS4330PAS qualified for automotive applications?
No-per revision v.2 (October 2023), PBSS4330PAS is explicitly designated non-automotive qualified. Nexperia offers automotive-grade variants (e.g., PBSS4330PAS-Q) with AEC-Q101 qualification, enhanced testing, and extended temperature validation.
PBSS4330PASX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 3 A
- Voltage - Collector Emitter Breakdown (Max):
- 30 V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 300mA, 3A
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 270 @ 1A, 2V
- Power - Max:
- 600 mW
- Frequency - Transition:
- -
- Operating Temperature:
- 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN2020D-3
PBSS4330PASX FAQ
1.How can I place an order for PBSS4330PASX through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS4330PASX 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 PBSS4330PASX reliable?
The price and inventory of PBSS4330PASX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4330PASX is usually 5 days.
3.What payment methods are accepted for PBSS4330PASX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4330PASX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS4330PASX?
PBSS4330PASX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS4330PASX 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 PBSS4330PASX?
For technical support, including PBSS4330PASX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4330PASX requirements.
6.How does Aetrix verify that PBSS4330PASX is sourced from the original manufacturer or authorized distributors?
All PBSS4330PASX 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 PBSS4330PASX meets industry standards.
7.What is the process for return or replacement of PBSS4330PASX?
All PBSS4330PASX units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4330PASX, 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 PBSS4330PASX part is unused and in its original packaging.
Return procedure for PBSS4330PASX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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