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Nexperia USA Inc. PBSS4420D,115
- Part No.:
- PBSS4420D,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-74, SOT-457
- Datasheet:
-
PBSS4420D,115.pdf
- Description:
- TRANS NPN 20V 4A 6-TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,444
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Product details
Overview
PBSS4420D,115 from Nexperia is an NPN low VCE(sat) transistor in TSOP6 (SOT457) package, rated for 20 V VCEO, 4 A continuous collector current, and 50–70 mΩ RCE(sat) at IC = 4 A / IB = 400 mA. It serves as a high-efficiency power switch in DC-DC converters and MOSFET gate drivers where minimal conduction loss and thermal footprint are critical.
For engineers reviewing the PBSS4420D,115 datasheet, PBSS4420D,115 pinout, PBSS4420D,115 application, or PBSS4420D,115 equivalent, this device is selected for low-saturation switching in space-constrained power management circuits requiring stable 4 A handling with <300 mV VCE(sat) at full load and robust thermal performance on FR4 or ceramic PCBs.
Technical Context
This NPN transistor uses optimized epitaxial base and emitter structures to achieve ultra-low saturation voltage and resistance while maintaining DC current gain (hFE) of 100–230 at IC = 6 A. Its design targets high-duty-cycle switching in compact power stages where thermal resistance to ambient (Rth(j-a)) ranges from 113 K/W (6 cm² FR4 pad) to 350 K/W (standard FR4).
It operates with fast switching times-ton = 48 ns, toff = 280 ns-under 12.5 V VCC, 3 A IC, and ±150 mA base drive, enabling efficient operation up to ~100 MHz fT. The 6-pin TSOP6 layout integrates four collector terminals to reduce bond-wire inductance and improve current sharing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 20 V - Maximum safe collector-emitter blocking voltage in open-base configuration. |
| IC (continuous) | 4 A - Sustained collector current capability with proper PCB thermal design (e.g., 6 cm² copper pad). |
| RCE(sat) | 50–70 mΩ - Low conduction resistance reduces I²R losses and self-heating during high-current switching. |
| VCE(sat) | 200–310 mV @ IC = 4 A - Enables <0.3 V dropout in saturated-switch applications like load switching. |
| fT | 100 MHz - Supports high-frequency switching control loops and fast transient response in SMPS feedback paths. |
| toff | 280 ns - Short turn-off delay enables >300 kHz PWM operation without significant switching loss penalty. |
| hFE | 100–230 @ IC = 6 A - Ensures reliable base drive margin for 4 A loads with modest base current (e.g., 400 mA). |
Pinout & Package
Package: TSOP6 (SOT457), surface-mount plastic package with 6 leads, 1.3 mm max height, and standard footprint per Figure 15 and 16 (Nexperia doc). Four collector pins enable parallel current paths and lower effective RCE(sat).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Collector | Primary high-current output path; electrically tied to pins 2, 5, and 6 for reduced resistance and inductance. |
| 2 | Collector | Redundant collector terminal enhancing current capacity and thermal spreading across PCB land pattern. |
| 3 | Base | Control input requiring ~400 mA drive for full 4 A saturation; low VBE(sat) (~1.0 V) eases driver selection. |
| 4 | Emiter | Reference node for switching; connected to ground or low-side return path in common-emitter configurations. |
| 5 | Collector | Additional collector terminal improving thermal dissipation and reducing localized heating under pulsed loads. |
| 6 | Collector | Final collector connection completing symmetrical 4-terminal collector structure for optimal current distribution. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RCE(sat) | 50–70 mΩ enables <120 mW conduction loss at 4 A, reducing heatsink requirements in portable power stages. |
| 4-terminal collector | Four parallel collector pins lower effective package resistance and improve thermal coupling to PCB copper area. |
| High peak current rating | 15 A single-pulse capability supports motor startup surges and DC-DC inrush without secondary protection. |
| Fast switching | 280 ns toff and 48 ns ton allow clean PWM operation up to 350 kHz with minimal dead-time overhead. |
| Thermal flexibility | Rth(j-a) scalable from 113 K/W (6 cm² FR4) to 50 K/W (pulsed), supporting both continuous and burst-mode designs. |
Applications
| DC-DC Converter Switch | MOSFET Gate Driver |
|---|---|
Use Scenario: High-efficiency buck converter in industrial IoT sensor nodes operating from 12 V input to 3.3 V/2 A output. IC Role / Device Role / Timing Role: Low-side synchronous rectifier switch replacing Schottky diode to reduce conduction loss and improve efficiency above 85%. Use Value: 50 mΩ RCE(sat) cuts conduction loss by ~65% vs. typical 0.5 V Schottky, directly extending battery life. |
Use Scenario: Driving high-capacitance power MOSFET gates in motor control H-bridge modules with 10 nF total gate charge. IC Role / Device Role / Timing Role: Active pull-down stage providing fast, low-impedance discharge path for MOSFET gate during turn-off. Use Value: 280 ns toff and 200 mV VCE(sat) ensure sub-300 ns gate discharge, minimizing shoot-through risk at 100 kHz PWM. |
| Motor/Fan Power Switch | TFT Backlight Inverter |
Use Scenario: 24 V DC fan control in network equipment chassis with PWM speed regulation and overcurrent protection. IC Role / Device Role / Timing Role: Low-side main power switch handling 3 A continuous load with integrated current sensing via VCE(sat) monitoring. Use Value: Stable 300 mV VCE(sat) at 3 A allows accurate analog current feedback without external shunt resistor. |
Use Scenario: Cold-cathode fluorescent lamp (CCFL) inverter in medical display panels requiring precise 50–100 kHz AC drive. IC Role / Device Role / Timing Role: High-speed switching element in Royer oscillator topology generating resonant square-wave output. Use Value: 100 MHz fT and 36 ns tr support clean 100 kHz square-wave generation with minimal harmonic distortion. |
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 NSS40501MR6T1G | 20 V VCEO, 4 A IC, but RCE(sat) = 90–120 mΩ - ~80% higher conduction loss than PBSS4420D. | Larger thermal resistance (250 K/W on FR4) limits continuous 4 A use without extended copper; better suited for intermittent loads. | Select when cost sensitivity outweighs efficiency needs and board space permits larger thermal pad. |
| Diodes Incorporated DXTN20040CTR | 20 V VCEO, 4 A IC, RCE(sat) = 45–65 mΩ - slightly lower resistance, but only 3-pin SOT23 package limits current sharing and thermal spread. | No multi-collector pinning; peak current limited to 10 A; unsuitable for sustained 4 A due to higher junction temperature rise. | Prefer for ultra-compact layouts where 4 A is short-duration, not continuous duty. |
Compared with NSS40501MR6T1G and DXTN20040CTR, PBSS4420D delivers superior thermal management via its 4-collector TSOP6 layout and lowest verified RCE(sat), making it the optimal choice for space-constrained, continuous 4 A switching where efficiency and reliability are prioritized over minimal footprint.
Availability
PBSS4420D,115 is available at Aetrix Electronics and suitable for DC-DC conversion, MOSFET gate driving, and motor/fan power switching requiring stable component supply and consistent parametric performance across production batches.
Supply support for PBSS4420D,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 specializing in high-performance, energy-efficient logic, discrete, and MOSFET devices, with manufacturing rooted in process innovation and automotive-grade quality systems.
PBSS4420D,115 belongs to Nexperia's "Low VCE(sat) Transistor" product line, engineered specifically for high-current, low-loss switching in consumer, industrial, and computing power management applications.
FAQ
What is the maximum continuous collector current for PBSS4420D,115 under standard FR4 PCB conditions?
The PBSS4420D,115 supports 4 A continuous collector current when mounted on an FR4 PCB with a 6 cm² copper mounting pad for the collector, achieving Rth(j-a) = 113 K/W. Without enhanced copper area, derating is required: 2.5 A on standard FR4 (Rth(j-a) = 350 K/W) at Tamb = 25 °C.
How does the 4-collector pin configuration affect PCB layout and thermal design?
The four collector pins (1, 2, 5, 6) must be routed to a shared large copper pour-minimum 6 cm² recommended-to fully realize the 113 K/W thermal resistance. Splitting collector traces or isolating pins increases local heating and degrades RCE(sat) stability beyond datasheet values.
Can PBSS4420D,115 replace a MOSFET in low-voltage, high-current switching applications?
Yes, in low-side switching where VDS(on) of small MOSFETs exceeds 30 mΩ (e.g., 20 V logic-level devices), PBSS4420D's 50 mΩ RCE(sat) offers comparable conduction loss with simpler gate drive (no level-shifting or high-current gate drivers needed), though it lacks inherent reverse-blocking capability.
Is PBSS4420D,115 qualified for automotive applications?
No-per Nexperia's revision history (v.3, 30 September 2025), PBSS4420D,115 is explicitly non-automotive qualified. It has not undergone AEC-Q101 stress testing or PPAP validation. For automotive use, Nexperia recommends the -Q qualified variant PBSS4420D-Q, which shares identical electrical specs but includes full qualification documentation.
PBSS4420D,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-74, SOT-457
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 4 A
- Voltage - Collector Emitter Breakdown (Max):
- 20 V
- Vce Saturation (Max) @ Ib, Ic:
- 1.1V @ 400mA, 4A
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 250 @ 2A, 2V
- Power - Max:
- 1.1 W
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOP
PBSS4420D,115 FAQ
1.How can I place an order for PBSS4420D,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS4420D,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 PBSS4420D,115 reliable?
The price and inventory of PBSS4420D,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4420D,115 is usually 5 days.
3.What payment methods are accepted for PBSS4420D,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4420D,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS4420D,115?
PBSS4420D,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS4420D,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 PBSS4420D,115?
For technical support, including PBSS4420D,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4420D,115 requirements.
6.How does Aetrix verify that PBSS4420D,115 is sourced from the original manufacturer or authorized distributors?
All PBSS4420D,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 PBSS4420D,115 meets industry standards.
7.What is the process for return or replacement of PBSS4420D,115?
All PBSS4420D,115 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4420D,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 PBSS4420D,115 part is unused and in its original packaging.
Return procedure for PBSS4420D,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PBSS4420D,115 Tags
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