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Nexperia USA Inc. PBSS302NX,115
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- Part No.:
- PBSS302NX,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
PBSS302NX,115.pdf
- Description:
- TRANS NPN 20V 5.3A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:827
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Product details
Overview
PBSS302NX,115 from Nexperia is an NPN low VCE(sat) transistor in SOT89 package, designed for high-efficiency switching in power-constrained applications. It delivers 5.3 A continuous collector current, 20 V VCEO, and typ. 28 mΩ RCE(sat) at IC = 4 A / IB = 200 mA - enabling compact DC-DC converters and MOSFET gate drivers where thermal density and board space are critical.
For engineers reviewing the PBSS302NX,115 datasheet, PBSS302NX,115 pinout, PBSS302NX,115 application, or PBSS302NX,115 equivalent, key selection criteria include verified low saturation resistance, SOT89 thermal performance on FR4 PCBs, peak current capability (10.6 A), hFE stability at high IC, and PNP complement availability (PBSS302PX).
Technical Context
This device operates as a discrete NPN bipolar junction transistor optimized for saturated-switching mode, not linear amplification. Its architecture prioritizes minimal VCE(sat) and RCE(sat) under high-current pulsed conditions (tp ≤ 300 µs, δ ≤ 0.02), with hFE maintained above 200 at IC = 6 A.
Thermal design relies on direct collector pad conduction: Rth(j–sp) is 20 K/W to solder point, and Rth(j–a) varies from 60 K/W (ceramic PCB) to 208 K/W (standard FR4), requiring explicit layout validation per mounting condition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 20 V - Maximum allowable collector-emitter voltage with base open; defines safe blocking capability in low-voltage power switches. |
| IC | 5.3 A - Continuous DC collector current rating at Tamb ≤ 25 °C; sets baseline steady-state load-handling capacity. |
| RCE(sat) | 28 mΩ (typ.) - Collector-emitter saturation resistance at IC = 4 A / IB = 200 mA; directly determines conduction loss (P = I²R) in switching applications. |
| hFE | 380 (typ.) - DC current gain at IC = 6 A / VCE = 2 V; enables efficient base drive scaling for high-current switching without excessive IB. |
| toff | 355 ns - Total turn-off time under VCC = 12.5 V, IC = 3 A, IBoff = −0.15 A; constrains maximum practical switching frequency in hard-switched topologies. |
| Ptot | 2.1 W - Maximum total power dissipation on ceramic PCB (Al2O3); defines upper thermal limit before derating applies. |
Pinout & Package
SOT89 (SC-62/TO-243) plastic surface-mount package: 3-lead, 1.5 mm pitch, 4.5 × 2.5 × 1.5 mm body, with exposed collector pad for thermal conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter (E) | Current return path; connected to ground or low-side reference; requires low-inductance routing in high-di/dt switching. |
| 2 | Collector (C) | Main power output terminal; electrically and thermally tied to large copper pour (≥6 cm² on FR4) for heat extraction. |
| 3 | Base (B) | Control input; driven with ≥200 mA peak to achieve specified RCE(sat); requires series resistor to limit IB and prevent overdrive. |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | 140–200 mV at IC = 5.3 A / IB = 265 mA - reduces conduction loss by >40% vs. standard transistors, lowering thermal stress in dense layouts. |
| High IC capability | 5.3 A continuous + 10.6 A pulsed - supports high-current motor control and charging circuits without paralleling devices. |
| Stable hFE at high current | 200–380 across IC = 0.5–6 A - ensures predictable base drive requirements and consistent saturation behavior under load variation. |
| Optimized thermal interface | Rth(j–sp) = 20 K/W - enables direct heat transfer from die to PCB copper, eliminating need for external heatsinks in many 2–3 W applications. |
Applications
| DC-to-DC Conversion | MOSFET Gate Driving |
|---|---|
Use Scenario: Step-down (buck) converter in portable power banks delivering 5 V/3 A output. IC Role / Device Role / Timing Role: Low-side synchronous rectifier switch replacing Schottky diode to reduce forward drop and improve efficiency. Use Value: 28 mΩ RCE(sat) cuts conduction loss to ~0.34 W at 4 A, enabling >92% efficiency and eliminating forced air cooling. |
Use Scenario: High-speed gate driver stage for 40 V, 30 A logic-level MOSFET in BLDC motor inverter. IC Role / Device Role / Timing Role: Active pull-down transistor ensuring rapid MOSFET turn-off and preventing shoot-through during commutation. Use Value: 355 ns toff and 200 mV VCE(sat) minimize dead-time penalty and gate drive loss, supporting 100 kHz PWM operation. |
| Motor Control | Charging Circuits |
Use Scenario: Fan speed controller in industrial HVAC system with 24 V supply and 2 A nominal load. IC Role / Device Role / Timing Role: PWM-controlled power switch in high-side or low-side configuration driving brushed DC fan motor. Use Value: 5.3 A IC rating accommodates 3× startup surge current; 150 °C Tj max allows operation in sealed enclosures up to 85 °C ambient. |
Use Scenario: Constant-current charge switch for 2-cell Li-ion battery pack (8.4 V max) in medical wearable device. IC Role / Device Role / Timing Role: Precision current-regulating pass element controlled via feedback loop to maintain ±2% charge accuracy. Use Value: Tight VCE(sat) tolerance (140–200 mV) and stable hFE enable accurate current sensing with minimal voltage headroom loss. |
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 |
|---|---|---|---|
| DMT3006LPSQ-7 | 60 V VCEO, 3.5 A IC, SOT23 package, MOSFET (not BJT) | Higher voltage rating but lower current; smaller footprint; zero gate charge but requires gate driver IC | Select when system voltage exceeds 20 V or board area is < 2.5 mm²; avoid if base-drive simplicity or BJT linearity is required. |
| PBSS302PX,115 | PNP complement: same VCEO, IC, RCE(sat), SOT89 package, mirrored pinout (1=C, 2=E, 3=B) | Enables complementary emitter-follower or H-bridge configurations; identical thermal and switching specs | Required for push-pull or dual-rail designs; pinout reversal must be accounted for in layout and schematic. |
Compared with DMT3006LPSQ-7, PBSS302NX,115 offers higher current and simpler drive but lower voltage margin; versus PBSS302PX,115, it provides identical performance in NPN topology only, with no functional substitution possible without circuit redesign.
Availability
PBSS302NX,115 is available at Aetrix Electronics and suitable for DC-DC conversion, motor control, charging circuits, and power switches requiring stable component supply, long-term manufacturability, and traceable sourcing.
Supply support for PBSS302NX,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 essential semiconductors - including logic, discretes, MOSFETs, and ESD protection - with manufacturing rooted in process technology leadership and automotive-grade quality systems.
PBSS302NX,115 belongs to Nexperia's "Low VCE(sat) Transistor" product line, engineered specifically for energy-efficient power switching in space-constrained consumer, industrial, and computing applications where thermal density and conduction loss dominate design trade-offs.
FAQ
What is the maximum allowable junction temperature for PBSS302NX,115?
The absolute maximum junction temperature (Tj) is 150 °C, as defined in IEC 60134 limiting values. Operation beyond this threshold risks permanent parametric shift or failure. Thermal design must ensure Tj remains below 150 °C under worst-case ambient, power dissipation, and PCB layout conditions - verified using Rth(j–a) values from Table 6 and Fig. 1.
Can PBSS302NX,115 replace a standard general-purpose NPN transistor like BC817 in a 5 V logic interface?
No - PBSS302NX,115 is optimized for high-current saturated switching, not small-signal amplification or logic-level interfacing. Its high IB requirement (200–400 mA for full saturation) and low hFE at low IC make it unsuitable for 5 V microcontroller GPIO drive. Use BC817 or similar for signal-level applications; reserve PBSS302NX,115 for loads ≥1 A.
Is PBSS302NX,115 qualified for automotive applications?
No - the datasheet revision history explicitly states this part was changed to non-automotive qualification in v.4 (2025). It lacks AEC-Q101 stress testing and automotive-specific reliability reporting. For automotive use, consult Nexperia's PBSS302NX-Q series or equivalent qualified alternatives - never substitute without formal qualification review.
How does the SOT89 package affect PCB layout for thermal performance?
The SOT89 exposes the collector as a thermal pad requiring ≥6 cm² of single-sided copper on FR4 (or ceramic PCB) to achieve rated 2.1 W dissipation. Standard footprint yields only 0.6 W; insufficient copper causes rapid thermal runaway. Layout must follow Fig. 14 reflow footprint, avoid solder mask over the pad, and use ≥3 thermal vias to inner ground planes if multilayer.
PBSS302NX,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):
- 5.3 A
- Voltage - Collector Emitter Breakdown (Max):
- 20 V
- Vce Saturation (Max) @ Ib, Ic:
- 200mV @ 265mA, 5.3A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 250 @ 2A, 2V
- Power - Max:
- 2.1 W
- Frequency - Transition:
- 140MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
PBSS302NX,115 FAQ
1.How can I place an order for PBSS302NX,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS302NX,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 PBSS302NX,115 reliable?
The price and inventory of PBSS302NX,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS302NX,115 is usually 5 days.
3.What payment methods are accepted for PBSS302NX,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS302NX,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS302NX,115?
PBSS302NX,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS302NX,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 PBSS302NX,115?
For technical support, including PBSS302NX,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS302NX,115 requirements.
6.How does Aetrix verify that PBSS302NX,115 is sourced from the original manufacturer or authorized distributors?
All PBSS302NX,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 PBSS302NX,115 meets industry standards.
7.What is the process for return or replacement of PBSS302NX,115?
All PBSS302NX,115 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS302NX,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 PBSS302NX,115 part is unused and in its original packaging.
Return procedure for PBSS302NX,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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