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Nexperia USA Inc. PBSS4440D,115
- Part No.:
- PBSS4440D,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-74, SOT-457
- Datasheet:
-
PBSS4440D,115.pdf
- Description:
- TRANS NPN 40V 4A 6-TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,101
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Product details
Overview
PBSS4440D,115 from Nexperia is an NPN low VCE(sat) Breakthrough In Small Signal (BISS) transistor in SOT457 (SC-74) package, designed as a high-efficiency power switch with 40 V VCEO, 4 A DC collector current, and ultra-low 55–75 mΩ RCE(sat) at 6 A/600 mA drive-used in MOSFET gate driving and TFT backlight inverters.
For engineers reviewing the PBSS4440D,115 datasheet, PBSS4440D,115 pinout, PBSS4440D,115 application, or PBSS4440D,115 equivalent, key selection criteria include saturation resistance under high-current switching, thermal performance on FR4 PCBs, base drive requirements for <500 ns turn-off, and compatibility with 6-pin SOT457 layout constraints.
Technical Context
This BISS transistor uses optimized epitaxial structure and emitter-finger geometry to achieve sub-100 mV VCE(sat) at 1 A with only 50 mA base drive, enabling direct drive from microcontroller GPIOs without external buffer stages. Its 6-pin SOT457 configuration integrates four collector terminals (pins 1,2,5,6) for parallel current handling and reduced bond-wire inductance.
Thermal design leverages dual mounting options: standard FR4 footprint yields 350 K/W Rth(j-a), while 6 cm² collector pad reduces it to 160 K/W-critical for sustained 4 A operation in compact DC-DC converters and motor drivers where heatsinking is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum blocking voltage in common-emitter configuration; supports 24 V industrial bus and 36 V automotive auxiliary rails. |
| IC (DC) | 4 A - Continuous current capability enables single-device replacement of dual-SOT23 solutions in power switches. |
| RCE(sat) | 55–75 mΩ at IC = 6 A / IB = 600 mA - Enables <0.5 W conduction loss at 6 A, reducing thermal load in space-constrained inverters. |
| toff | 510 ns - Fast turn-off supports >1 MHz PWM in synchronous buck controllers and LED dimming circuits. |
| hFE | 100 min at IC = 4 A - Ensures stable saturation with modest base drive, simplifying gate driver design for MOSFETs. |
| Tj(max) | 150 °C - Allows operation in sealed enclosures up to 105 °C ambient when mounted on 6 cm² FR4 copper area. |
Pinout & Package
SOT457 (SC-74) plastic surface-mounted package with 6 leads; 4.0 mm pitch, 8 mm tape and reel packing (T1); dimensions: 3.0 × 2.5 × 1.3 mm height; pin 1 index marked.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 5, 6 | Collector | Four paralleled collector terminals reduce current density and bond-wire inductance, supporting 15 A peak pulse without localized heating. |
| 3 | Base | Single base input requiring 600 mA for full 6 A saturation; compatible with 3.3 V/5 V logic-level drive via series resistor. |
| 4 | Emiter | Emitter reference node; must be connected to low-impedance ground plane to maintain low VCE(sat) and minimize switching oscillation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VCE(sat) | 330–450 mV at 4 A/400 mA drive - cuts conduction loss by >50% vs. standard bipolar transistors, improving efficiency in battery-powered chargers. |
| High peak current | 15 A for 1 ms - sustains motor startup surges and capacitor charging spikes without secondary breakdown. |
| Low thermal resistance | Rth(j-sp) = 45 K/W - enables rapid heat transfer to PCB copper, critical for fanless industrial control modules. |
| High hFE at high current | 50 min at IC = 6 A - ensures robust saturation margin even with ±20% base drive variation across temperature. |
Applications
| Motor Control Switching | DC-DC Converter High-Side Switch |
|---|---|
|
Use Scenario: Driving 12 V brushed DC motors in HVAC actuators and robotic joints with PWM frequencies up to 20 kHz. IC Role / Device Role / Timing Role: NPN power switch operating in saturation mode, turning motor current on/off with <510 ns toff. Use Value: 55 mΩ RCE(sat) limits I²R loss to 0.35 W at 2.5 A, eliminating need for heatsink in compact enclosures. |
Use Scenario: High-side switch in non-synchronous buck converter for 5 V rail generation from 24 V input in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Low-VCE(sat) transistor replacing P-channel MOSFET where gate drive complexity is prohibitive. Use Value: 220–300 mV VCE(sat) at 4 A reduces dropout voltage by 0.25 V vs. standard bipolar, improving output regulation. |
| TFT LCD Backlight Inverter | MOSFET Gate Driver |
|
Use Scenario: Driving resonant transformer primary in CCFL or LED backlight inverters for medical display panels. IC Role / Device Role / Timing Role: Fast-switching NPN transistor handling 6 A pulsed collector current at 100–200 kHz. Use Value: 120 ns tf and 390 ns ts minimize dead-time losses and enable precise zero-voltage switching timing control. |
Use Scenario: Level-shifting and current-boosting stage between MCU GPIO and high-capacitance power MOSFET gates in motor drives. IC Role / Device Role / Timing Role: Active pull-down transistor sinking 600 mA base current to rapidly discharge MOSFET gate charge. Use Value: 510 ns toff ensures <100 ns gate discharge time for 10 nF gate capacitance, enabling >500 kHz switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN low-VCE(sat) switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40501MR6T1G | 40 V VCEO, 4 A IC, but RCE(sat) = 100–140 mΩ at 4 A - 80% higher conduction loss. | Less suitable for thermally constrained TFT inverters; acceptable in lower-duty-cycle motor controls. | Select when cost priority outweighs efficiency; verify base drive capability for hFE = 100 at 4 A. |
| Diodes Incorporated DXTN4030P5-13 | 40 V VCEO, 3 A IC, RCE(sat) = 65–95 mΩ - lower current rating limits peak surge handling. | Not recommended for 15 A motor startup pulses; requires derating in DC-DC high-side use. | Choose only if board space allows dual-device paralleling; confirm thermal performance on FR4 with 1 cm² pad. |
Compared with NSS40501MR6T1G and DXTN4030P5-13, PBSS4440D,115 delivers superior thermal efficiency at full 4 A load and enables single-device 15 A pulse handling-critical for space-limited inverters and high-reliability motor drives where conduction loss directly impacts MTBF.
Availability
PBSS4440D,115 is available at Aetrix Electronics and suitable for motor control, DC-DC conversion, TFT backlight inverters, and MOSFET gate driving requiring stable component supply across industrial OEM production cycles.
Supply support for PBSS4440D,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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
PBSS4440D,115 belongs to Nexperia's BISS transistor product line, engineered specifically for high-efficiency, high-current switching in space-constrained power management systems where low VCE(sat) and fast switching are mandatory.
FAQ
What is the maximum continuous collector current for PBSS4440D,115 under standard FR4 PCB conditions?
The PBSS4440D,115 supports 4 A continuous collector current (IC) when mounted on a standard FR4 PCB with single-sided copper and tin plating, per Table 5 limiting values. This rating assumes ambient temperature ≤25 °C and accounts for 360 mW total power dissipation at that condition.
Can PBSS4440D,115 replace a standard NPN transistor like BC817 in high-current switching applications?
No-PBSS4440D,115 is not a drop-in replacement for BC817 due to its 6-pin SOT457 package, 4 A current rating, and ultra-low saturation resistance. It requires PCB layout changes and higher base drive (up to 600 mA), but delivers 70% lower VCE(sat) at 2 A than BC817, justifying redesign in efficiency-critical applications.
How does the 4-collector-pin configuration improve thermal performance?
The four paralleled collector pins (1,2,5,6) reduce current density per bond wire and lower parasitic inductance, enabling more uniform current distribution and faster heat spreading into the PCB copper. This configuration contributes to the 160 K/W Rth(j-a) achievable with a 6 cm² collector pad, versus 350 K/W on standard FR4.
Is PBSS4440D,115 suitable for automotive under-hood applications?
Yes-its −65 °C to +150 °C junction temperature range, AEC-Q101 stress qualification (per Nexperia's BISS family documentation), and 40 V VCEO rating make it suitable for engine control module power stages and HVAC blower drivers, provided PCB thermal design meets Rth(j-a) targets for the ambient environment.
PBSS4440D,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):
- 40 V
- Vce Saturation (Max) @ Ib, Ic:
- 450mV @ 600mA, 6A
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 250 @ 2A, 2V
- Power - Max:
- 1.1 W
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOP
PBSS4440D,115 FAQ
1.How can I place an order for PBSS4440D,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS4440D,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 PBSS4440D,115 reliable?
The price and inventory of PBSS4440D,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4440D,115 is usually 5 days.
3.What payment methods are accepted for PBSS4440D,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4440D,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS4440D,115?
PBSS4440D,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS4440D,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 PBSS4440D,115?
For technical support, including PBSS4440D,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4440D,115 requirements.
6.How does Aetrix verify that PBSS4440D,115 is sourced from the original manufacturer or authorized distributors?
All PBSS4440D,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 PBSS4440D,115 meets industry standards.
7.What is the process for return or replacement of PBSS4440D,115?
All PBSS4440D,115 units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4440D,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 PBSS4440D,115 part is unused and in its original packaging.
Return procedure for PBSS4440D,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PBSS4440D,115 Tags
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