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Nexperia USA Inc. PBSS4480X,135
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- Part No.:
- PBSS4480X,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
PBSS4480X,135.pdf
- Description:
- TRANS NPN 80V 4A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:3,778
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Product details
Overview
PBSS4480X,135 from Nexperia is an AEC-Q101-qualified NPN low VCEsat transistor in SOT89 package, designed for medium-power switching with 80 V VCEO, 4 A continuous collector current, and 40–54 mΩ RCEsat at 5 A/500 mA drive-used in DC-DC converters, motor drivers, and TFT display inverters.
For engineers reviewing the PBSS4480X,135 datasheet, PBSS4480X,135 pinout, PBSS4480X,135 application, or PBSS4480X,135 equivalent, key selection criteria include thermal resistance (Rth(j-a) = 50 K/W on FR4), low saturation voltage (VCEsat ≤ 270 mV at 4 A), AEC-Q101 qualification, and SOT89 mechanical compatibility for high-current PCB mounting.
Technical Context
This NPN bipolar junction transistor operates as a high-efficiency medium-power switch with optimized base drive sensitivity: hFE = 80–140 at 4 A/2 A, enabling robust current gain under pulsed high-load conditions. Its low VCEsat and RCEsat minimize conduction losses in battery-powered and thermally constrained systems.
The device features AEC-Q101 qualification, 150 °C maximum junction temperature, and thermal performance validated on FR4 PCBs with 1 cm² to 6 cm² collector pads-supporting stable operation across automotive ambient ranges (−65 °C to 150 °C) and pulsed peak currents up to 10 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Maximum safe collector-emitter voltage with open base; enables use in 48 V and higher industrial bus systems. |
| IC (continuous) | 4 A - Rated DC collector current on FR4 PCB with 6 cm² collector pad; supports fan/motor drivers without forced cooling. |
| RCEsat | 40–54 mΩ - Equivalent on-resistance at IC = 5 A / IB = 500 mA; reduces power loss to <135 mW at 4 A. |
| hFE | 80–140 - DC current gain at IC = 4 A / VCE = 2 V; ensures reliable saturation with moderate base drive (200 mA). |
| Tj(max) | 150 °C - Maximum junction temperature; allows operation in under-hood automotive environments with derated power. |
| Rth(j-a) | 50 K/W - Junction-to-ambient thermal resistance on standard FR4 footprint; defines heatsinking requirement for 1.4 W dissipation at 25 °C ambient. |
Pinout & Package
Package: SOT89 (SC-62), surface-mount plastic package with 3 leads, 1.5 mm pitch, 4.5 mm × 2.5 mm × 1.5 mm body; collector tab forms exposed thermal pad on lead 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter (E) | Current return path; connected to ground or low-side reference; electrically isolated from thermal pad. |
| 2 | Collector (C) | Main power output terminal; soldered to large copper pad (≥1 cm²) for thermal management and current conduction. |
| 3 | Base (B) | Control input; requires ≥200 mA pulsed drive for full saturation at 4 A; sensitive to ESD per AEC-Q101 requirements. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing-enables use in engine control and ADAS subsystems. |
| Low RCEsat (40–54 mΩ) | Reduces conduction loss by >40% vs. standard BJT alternatives at 4 A, lowering thermal stress in compact DC-DC modules. |
| High hFE at high current | 80–140 at IC = 4 A enables efficient base drive with minimal gate-driver overhead in discrete switch designs. |
| Thermal robustness | Rth(j-sp) = 16 K/W to solder point supports rapid heat transfer to PCB, critical for sustained 4 A operation on FR4. |
Applications
| Motor Drive for Automotive HVAC Fans | TFT-LCD Display Inverter |
|---|---|
Use Scenario: Switching 24–48 V DC supply to brushless DC fan motors in vehicle climate control systems. IC Role / Device Role / Timing Role: Medium-power NPN switch controlling motor phase current; driven by PWM controller with 200 mA base current. Use Value: Low VCEsat (≤230 mV at 4 A) limits self-heating, enabling fan operation at full speed without heatsink in confined dash space. |
Use Scenario: Driving cold-cathode fluorescent lamp (CCFL) or LED backlight inverters in automotive infotainment displays. IC Role / Device Role / Timing Role: High-efficiency DC-AC switching element in resonant half-bridge topology; handles repetitive 10 A peak pulses. Use Value: 10 A ICM rating and 150 °C Tj support reliable operation during backlight dimming transients and extended display-on cycles. |
| Industrial DC-DC Converter Primary Switch | LAN/ADSL Power Switch |
Use Scenario: High-side switch in non-isolated buck or SEPIC converters powering 5–12 V rails from 24–48 V industrial inputs. IC Role / Device Role / Timing Role: Discrete NPN switch replacing MOSFETs where gate drive simplicity and cost are prioritized over ultra-low RDS(on). Use Value: 4 A IC and 80 V VCEO allow direct replacement of TO-220 BJTs while reducing board area by 70% via SOT89 packaging. |
Use Scenario: Power enable switch for Ethernet PHY or ADSL line driver ICs requiring controlled 3.3–5 V rail sequencing. IC Role / Device Role / Timing Role: Low-loss series pass element activated by microcontroller GPIO; switched at <1 kHz. Use Value: 270 mV max VCEsat at 1 A ensures <270 mW dropout loss-minimizing voltage droop and thermal rise in space-constrained telecom modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN low-VCEsat transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40501MR6T1G | Same SOT89 package; VCEO = 40 V, IC = 5 A, RCEsat = 35 mΩ @ 4 A - lower voltage rating but lower on-resistance. | Not suitable for 48 V+ systems; better for 12–24 V DC-DC where lower VCEsat improves efficiency. | Select when operating voltage ≤40 V and thermal margin is critical; verify base drive compatibility (hFE = 100–200). |
| Diodes Incorporated DXT75500QE-13 | SOT89; VCEO = 80 V, IC = 3 A, RCEsat = 65 mΩ @ 3 A - lower current rating and higher saturation resistance. | Acceptable for 3 A loads like smaller fans or LED drivers; less suitable for 4 A continuous DC-DC stages. | Choose for cost-sensitive 3 A applications where AEC-Q101 is not required; note reduced thermal headroom (Ptot = 1.25 W). |
Compared with PBSS4480X,135, NSS40501MR6T1G offers superior RCEsat but fails at 48 V bus compliance, while DXT75500QE-13 provides identical voltage rating but sacrifices 25% current capacity and adds 60% conduction loss-making PBSS4480X,135 optimal for 48 V, 4 A automotive and industrial switching.
Availability
PBSS4480X,135 is available at Aetrix Electronics and suitable for automotive HVAC fan drivers, TFT-LCD display inverters, and industrial DC-DC converters requiring stable component supply, AEC-Q101 compliance, and SOT89 thermal performance.
Supply support for PBSS4480X,135 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, reliable discrete and logic devices for automotive, industrial, and consumer markets.
PBSS4480X,135 belongs to Nexperia's AEC-Q101-qualified low VCEsat BJT portfolio, engineered specifically for thermally demanding medium-power switching in automotive and industrial power conversion.
FAQ
What is the maximum continuous collector current for PBSS4480X,135 under standard PCB conditions?
The PBSS4480X,135 supports 4 A continuous collector current when mounted on an FR4 PCB with a 6 cm² tin-plated copper collector pad, as specified in Table 1 and Table 5 of the datasheet. Derating applies above 25 °C ambient per Figure 1's power curves.
Is PBSS4480X,135 suitable for automotive applications?
Yes-PBSS4480X,135 is fully AEC-Q101 qualified per Section 11 of the datasheet, having passed stress tests for temperature cycling, high-temperature reverse bias, and ESD. It is rated for −65 °C to 150 °C operating range and approved for under-hood and cabin automotive systems.
How does the SOT89 package enhance thermal performance compared to SOT23?
The SOT89 package features an enlarged collector tab that serves as both electrical connection and thermal interface, achieving Rth(j-a) = 50 K/W on FR4-over 2× better than typical SOT23 BJTs. Its 4.5 mm × 2.5 mm footprint allows ≥6 cm² copper pour, directly lowering junction temperature at 4 A load.
What base drive current is required to saturate PBSS4480X,135 at 4 A collector current?
To achieve full saturation (VCEsat ≤ 230 mV) at IC = 4 A, the datasheet specifies IB = 400 mA pulsed (tp ≤ 300 µs, duty ≤ 0.02) at 25 °C. For DC operation, ≥200 mA is recommended to maintain hFE ≥ 80 and ensure robust turn-on margin across temperature.
PBSS4480X,135 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):
- 4 A
- Voltage - Collector Emitter Breakdown (Max):
- 80 V
- Vce Saturation (Max) @ Ib, Ic:
- 270mV @ 500mA, 5A
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 175 @ 2A, 2V
- Power - Max:
- 1.6 W
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
PBSS4480X,135 FAQ
1.How can I place an order for PBSS4480X,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS4480X,135 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 PBSS4480X,135 reliable?
The price and inventory of PBSS4480X,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4480X,135 is usually 5 days.
3.What payment methods are accepted for PBSS4480X,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4480X,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS4480X,135?
PBSS4480X,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS4480X,135 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 PBSS4480X,135?
For technical support, including PBSS4480X,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4480X,135 requirements.
6.How does Aetrix verify that PBSS4480X,135 is sourced from the original manufacturer or authorized distributors?
All PBSS4480X,135 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 PBSS4480X,135 meets industry standards.
7.What is the process for return or replacement of PBSS4480X,135?
All PBSS4480X,135 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4480X,135, 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 PBSS4480X,135 part is unused and in its original packaging.
Return procedure for PBSS4480X,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PBSS4480X,135 Tags
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