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Nexperia USA Inc. PBSS303PX,115
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- Part No.:
- PBSS303PX,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
PBSS303PX,115.pdf
- Description:
- TRANS PNP 30V 5.1A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
PBSS303PX,115 from Nexperia is a PNP low VCE(sat) transistor in SOT89 package, rated for −30 V VCEO, −5.1 A continuous collector current, and 32 mΩ typical RCE(sat) at IC = −4 A / IB = −200 mA. It serves as a high-efficiency power switch in DC-DC converters, motor drivers, and charging circuits where low conduction loss and compact PCB footprint are critical.
For engineers reviewing the PBSS303PX,115 datasheet, PBSS303PX,115 pinout, PBSS303PX,115 application, or PBSS303PX,115 equivalent, this device is selected for high-current PNP switching with sub-200 mV VCE(sat), thermal performance on FR4 (208 K/W Rth(j-a)), and compatibility with standard SOT89 reflow footprints.
Technical Context
This PNP bipolar junction transistor uses epitaxial base technology to achieve high hFE (100–160 at IC = −6 A) and low saturation resistance. Its optimized doping profile enables stable gain across −55 °C to 150 °C junction temperature range.
Switching performance is characterized by 70 ns turn-on time and 320 ns turn-off time under VCC = −12.5 V, IC = −3 A conditions. The device supports pulsed peak current up to −10.2 A (tp ≤ 1 ms) and operates with VEB ≤ −5 V absolute maximum rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −30 V - Maximum safe collector-emitter voltage with open base; defines blocking capability in high-side switch configurations |
| IC | −5.1 A - Continuous DC collector current; determines steady-state power handling in motor control or load switching |
| RCE(sat) | 32 mΩ typ - Low saturation resistance at IC = −4 A / IB = −200 mA; reduces conduction loss and self-heating |
| VCE(sat) | 160 mV typ - Collector-emitter saturation voltage at IC = −5.1 A / IB = −255 mA; enables <0.1 W dissipation at full current |
| hFE | 100–160 - DC current gain at IC = −6 A; ensures reliable drive margin with moderate base current |
| fT | 130 MHz - Transition frequency at VCE = −10 V / IC = −0.1 A; supports fast switching in SMPS applications |
| Rth(j-a) | 208 K/W - Junction-to-ambient thermal resistance on standard FR4 PCB; sets max ambient temperature for 150 °C Tj |
Pinout & Package
The PBSS303PX,115 is housed in a SOT89 (SC-62/TO-243) surface-mount plastic package measuring 4.5 mm × 2.5 mm × 1.5 mm, with 1.5 mm lead pitch and integrated heat-dissipating tab on pin 2 (collector).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter | Current return path; connected to system ground or negative rail in high-side PNP switch topologies |
| 2 | Collector | Main power output terminal; electrically and thermally coupled to PCB copper pour for heat sinking |
| 3 | Base | Control input requiring negative current to saturate; driven by logic-level or dedicated gate driver |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | 160 mV typ at full rated current - cuts conduction loss by >40% vs. conventional PNP transistors |
| High IC capability | −5.1 A continuous - supports direct driving of 5 A loads without external current amplification |
| Thermal robustness | 150 °C max junction temperature - enables operation in sealed enclosures or high-ambient environments |
| Fast switching | 70 ns ton, 320 ns toff - minimizes transition losses in PWM-based DC-DC and motor control |
| SOT89 footprint | Standardized 3-pin layout - compatible with automated placement and reflow processes; no custom tooling required |
Applications
| DC-DC Converters | MOSFET Gate Driving |
|---|---|
|
Use Scenario: Step-down (buck) converter synchronous rectifier or pre-regulator stage operating at 300 kHz–1 MHz. IC Role / Device Role / Timing Role: PNP power switch controlling energy transfer into output inductor; handles reverse recovery and shoot-through protection. Use Value: 32 mΩ RCE(sat) limits conduction loss to <0.65 W at 5 A, reducing heatsink requirements by 50% vs. legacy devices. |
Use Scenario: High-side gate driver for N-channel MOSFETs in half-bridge motor controllers. IC Role / Device Role / Timing Role: Active pull-up switch sourcing gate charge during high-side MOSFET turn-on phase. Use Value: 130 MHz fT and 70 ns ton ensure gate voltage rise time <100 ns, minimizing cross-conduction risk. |
| Motor Control | Charging Circuits |
|
Use Scenario: H-bridge low-side current sink or direction control switch in 12 V brushed DC motor systems. IC Role / Device Role / Timing Role: Current-handling switch enabling bidirectional current flow through motor windings. Use Value: −10.2 A ICM peak rating withstands stall currents; 150 °C Tj rating sustains intermittent overload without derating. |
Use Scenario: Constant-current regulation stage in USB-C PD or Li-ion battery charging modules. IC Role / Device Role / Timing Role: Precision current source element controlled via feedback loop to set charge current. Use Value: Tight VCE(sat) tolerance (±30 mV) ensures ±3% current accuracy across production lots without trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP low VCE(sat) transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS30300PZT1G | VCEO = −30 V, IC = −3.5 A, RCE(sat) = 45 mΩ @ IC = −2.5 A | Lower current rating and higher saturation resistance limit use to ≤3 A loads | Select when lower cost and smaller footprint (SOT-23) outweigh need for 5.1 A capacity |
| Diodes Incorporated DXT30300P5-13 | VCEO = −30 V, IC = −5.0 A, VCE(sat) = 190 mV @ IC = −4 A | Higher VCE(sat) increases conduction loss by ~20% at full load | Choose for designs prioritizing wide SOA and ruggedness over minimal thermal footprint |
Compared with PBSS303PX,115, NSS30300PZT1G trades 30% lower current for SOT-23 compatibility, while DXT30300P5-13 offers comparable current but requires 19% more board area for thermal management due to higher VCE(sat).
Availability
PBSS303PX,115 is available at Aetrix Electronics and suitable for DC-DC conversion, motor control, and battery charging applications requiring stable component supply, consistent parametric performance, and long-term industrial lifecycle support.
Supply support for PBSS303PX,115 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 and industrial-grade components.
The PBSS303PX,115 belongs to Nexperia's "Low VCE(sat) Transistor" product line, engineered specifically for efficiency-critical power switching in space-constrained consumer, industrial, and computing applications.
FAQ
What is the maximum allowable base current for continuous operation?
The datasheet specifies IB = −255 mA at IC = −5.1 A for VCE(sat) testing, but continuous base current must be limited to avoid thermal runaway. With hFE ≥100, −50 mA base current suffices for full saturation. Exceeding −100 mA continuously risks exceeding Ptot limits on standard FR4, especially above 75 °C ambient.
Can PBSS303PX,115 replace an NPN transistor in the same circuit?
No - PBSS303PX,115 is a PNP device with inverted polarity: emitter connects to higher potential, collector to load, and base driven negative relative to emitter. Direct NPN substitution would invert logic and violate biasing. An NPN complement is PBSS303NX, which shares identical ratings but opposite polarity.
Is this part qualified for automotive applications?
No - per Revision History (Table 8), PBSS303PX v.4 explicitly states "Product(s) changed to non-automotive qualification." Automotive alternatives are designated with "-Q" suffix (e.g., PBSS303PX-Q) and undergo AEC-Q101 stress testing; this variant is intended for industrial and consumer use only.
How does thermal performance change with PCB copper area?
Rth(j-a) improves from 208 K/W (standard FR4) to 76 K/W with 6 cm² collector pad, and further to 60 K/W on ceramic Al₂O₃. This allows 2.1 W total power dissipation on ceramic vs. 0.6 W on minimal FR4 - a 3.5× increase in usable power before reaching 150 °C Tj.
PBSS303PX,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 5.1 A
- Voltage - Collector Emitter Breakdown (Max):
- 30 V
- Vce Saturation (Max) @ Ib, Ic:
- 230mV @ 255mA, 5.1A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 2A, 2V
- Power - Max:
- 2.1 W
- Frequency - Transition:
- 130MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
PBSS303PX,115 FAQ
1.How can I place an order for PBSS303PX,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS303PX,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 PBSS303PX,115 reliable?
The price and inventory of PBSS303PX,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS303PX,115 is usually 5 days.
3.What payment methods are accepted for PBSS303PX,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS303PX,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS303PX,115?
PBSS303PX,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS303PX,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 PBSS303PX,115?
For technical support, including PBSS303PX,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS303PX,115 requirements.
6.How does Aetrix verify that PBSS303PX,115 is sourced from the original manufacturer or authorized distributors?
All PBSS303PX,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 PBSS303PX,115 meets industry standards.
7.What is the process for return or replacement of PBSS303PX,115?
All PBSS303PX,115 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS303PX,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 PBSS303PX,115 part is unused and in its original packaging.
Return procedure for PBSS303PX,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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