My Inquiry
My Account
Nexperia USA Inc. BSS84AKW-BX
- Part No.:
- BSS84AKW-BX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- SC-70, SOT-323
- Datasheet:
-
BSS84AKW-BX.pdf
- Description:
- MOSFET P-CHANNEL 50V 150MA SC70
- Quantity:
- Payment:
- Shipping:
Inventory:8,447
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BSS84AKW-BX from Nexperia is a P-channel enhancement-mode Trench MOSFET in SOT323 (SC-70) package, rated for −50 V drain-source voltage, −150 mA continuous drain current at 25 °C, and 4.5 Ω typical RDS(on) at VGS = −10 V. It serves as a high-side load switch or relay driver in space-constrained automotive and industrial control circuits.
For engineers reviewing the BSS84AKW-BX datasheet, BSS84AKW-BX pinout, BSS84AKW-BX application, or BSS84AKW-BX equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating curves, gate charge characteristics, and real-world switching behavior under logic-level drive conditions.
Technical Context
This device uses Trench MOSFET technology to achieve low on-resistance and fast switching with logic-level gate drive compatibility (VGS(th) = −1.1 to −2.1 V). Its ESD rating of 1 kV HBM supports robust handling in automated assembly lines.
The SOT323 package enables compact PCB layouts while maintaining thermal resistance of 350–400 K/W (junction-to-ambient, with 1 cm² drain pad), and its −55 to +150 °C operating junction temperature range supports automotive under-hood deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | −50 V - Maximum blocking voltage before avalanche conduction; suitable for 36 V automotive systems with margin. |
| ID (continuous) | −150 mA at Tamb = 25 °C - Continuous load current capability without forced cooling. |
| RDS(on) | 4.5 Ω typ @ VGS = −10 V, ID = −100 mA - Enables <150 mW conduction loss at rated current. |
| VGS(th) | −1.6 V typ - Ensures reliable turn-on with 2.5 V or 3.3 V logic outputs. |
| QG(tot) | 0.26 nC typ - Supports >1 MHz switching in low-power DC-DC or signal routing applications. |
| td(off) | 48 ns typ - Critical for minimizing dead-time losses in synchronous high-side configurations. |
| ESD Rating | 1000 V HBM - Eliminates need for external ESD protection in board-level handling and test. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package with 3 leads; 1.35 mm × 1.75 mm footprint, 0.95 mm height, and gull-wing lead form for reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | G (Gate) | Control terminal; requires ≤2.1 V negative bias relative to source to fully enhance; low input capacitance (24 pF) minimizes drive power. |
| 2 | S (Source) | Reference node for gate drive; connected to system ground or positive rail depending on high/low-side configuration. |
| 3 | D (Drain) | Load connection point; thermally coupled to PCB copper via exposed pad area in layout; handles −50 V reverse blocking. |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | VGS(th) down to −1.1 V ensures full enhancement with 2.5 V microcontroller I/O, eliminating level-shifter need. |
| Trench MOSFET architecture | Reduces RDS(on) by 35% vs planar P-channel equivalents at same die size, improving power density. |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics per stress-test requirements. |
| Fast switching performance | 48 ns turn-off delay + 25 ns fall time enables clean edge transitions in 5–10 MHz digital load switching. |
| Integrated ESD protection | 1 kV HBM rating allows direct placement on PCBs without discrete TVS diodes in non-safety-critical paths. |
Applications
| Automotive Body Control Module | Industrial PLC Output Stage |
|---|---|
|
Use Scenario: Driving 12 V incandescent lamps or solenoid valves in door lock or mirror control units. IC Role / Device Role / Timing Role: High-side load switch controlling power delivery to resistive/inductive loads. Use Value: −50 V rating accommodates load-dump transients up to 40 V; AEC-Q101 qualification ensures reliability over 15-year vehicle life. |
Use Scenario: Isolating field I/O signals in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Solid-state replacement for mechanical relays in 24 V DC output modules. Use Value: 150 mA current capacity supports standard 24 V/100 mA solenoid drivers; 48 ns td(off) enables precise timing control in cyclic scan routines. |
| USB-C Power Path Management | Low-Power Sensor Interface |
|
Use Scenario: Enabling/disabling VBUS power path in portable USB-C accessories during role swap. IC Role / Device Role / Timing Role: Reverse-polarity protected high-side switch in 5 V power routing circuit. Use Value: 4.5 Ω RDS(on) limits voltage drop to <0.75 V at 150 mA, preserving USB-C voltage compliance; SOT323 footprint saves board area. |
Use Scenario: Power gating MEMS accelerometers or environmental sensors in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Low-quiescent-current load switch enabling µA-level sleep mode isolation. Use Value: −1 µA IDSS leakage at −50 V ensures <1 µW standby loss; logic-compatible gate allows direct MCU GPIO control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar P-channel MOSFET switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMG2305UVT-7 | RDS(on) = 42 mΩ @ −4.5 V (lower), but larger SOT-23 package and higher QG (1.2 nC). | Better for high-current (>500 mA), lower-frequency (<100 kHz) loads where thermal mass matters more than speed. | Select when prioritizing conduction efficiency over board area and switching loss. |
| SI2301DDS-T1-BE3 | RDS(on) = 115 mΩ @ −2.5 V, 1.3× larger RDS(on) at same VGS, but identical SOT-23 footprint and AEC-Q101 qualified. | Preferred for cost-sensitive automotive modules where 150 mA rating suffices and layout reuse is critical. | Choose if existing SOT-23 land pattern must be retained and 4.5 Ω RDS(on) margin is acceptable. |
Compared with DMG2305UVT-7 and SI2301DDS-T1-BE3, BSS84AKW-BX uniquely balances ultra-small SOT323 size, 1 kV ESD robustness, and sub-5 Ω RDS(on) at logic-level drive-making it optimal for space-constrained, high-reliability, medium-speed switching where thermal budget is limited to ~260 mW.
Availability
BSS84AKW-BX is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, and USB-C power path management requiring stable component supply across multi-year production cycles.
Supply support for BSS84AKW-BX 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 components and advanced packaging.
BSS84AKW-BX belongs to Nexperia's TrenchMOS portfolio, engineered specifically for logic-driven, space-constrained switching in automotive and industrial environments where AEC-Q101 compliance and robust ESD tolerance are mandatory.
FAQ
What is the maximum safe operating temperature for BSS84AKW-BX?
The absolute maximum junction temperature is +150 °C, and the device is rated for continuous operation from −55 °C to +150 °C ambient. Derating begins at Tamb > 25 °C per Figure 2 in the datasheet: at 100 °C ambient, continuous ID drops to −95 mA due to thermal resistance limitations of the SOT323 package.
Can BSS84AKW-BX be used with 3.3 V microcontroller GPIOs?
Yes-its gate threshold voltage ranges from −1.1 V to −2.1 V, and it achieves full enhancement at VGS = −3.3 V. At −3.3 V, RDS(on) is typically 5.7 Ω (vs 4.5 Ω at −10 V), yielding acceptable conduction loss for ≤100 mA loads in most 3.3 V systems.
Does BSS84AKW-BX include an integrated body diode?
Yes-it features a built-in source-drain diode with VSD = −0.48 V typ at IS = −115 mA and Tj = 25 °C. This diode enables freewheeling in inductive load switching but is not rated for reverse recovery in high-frequency PWM applications.
How does AEC-Q101 qualification impact BSS84AKW-BX's use in non-automotive designs?
AEC-Q101 qualification subjects the device to accelerated stress tests (HTGB, TC, UHAST, etc.), resulting in proven reliability beyond standard industrial requirements. Designers in medical, aerospace, or industrial equipment benefit from its extended lifetime prediction, tighter parameter distributions, and reduced infant mortality-even outside automotive contexts.
BSS84AKW-BX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- P-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 50 V
- Current - Continuous Drain (Id) @ 25°C:
- 150mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 5V, 10V
- Rds On (Max) @ Id, Vgs:
- 7.5Ohm @ 100mA, 10V
- Vgs(th) (Max) @ Id:
- 2.1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 0.35 nC @ 5 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 36 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 830mW (Tc)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BSS84AKW-BX FAQ
1.How can I place an order for BSS84AKW-BX through Aetrix?
Please submit a Request for Quotation (RFQ) for BSS84AKW-BX 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 BSS84AKW-BX reliable?
The price and inventory of BSS84AKW-BX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSS84AKW-BX is usually 5 days.
3.What payment methods are accepted for BSS84AKW-BX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSS84AKW-BX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSS84AKW-BX?
BSS84AKW-BX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSS84AKW-BX 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 BSS84AKW-BX?
For technical support, including BSS84AKW-BX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSS84AKW-BX requirements.
6.How does Aetrix verify that BSS84AKW-BX is sourced from the original manufacturer or authorized distributors?
All BSS84AKW-BX 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 BSS84AKW-BX meets industry standards.
7.What is the process for return or replacement of BSS84AKW-BX?
All BSS84AKW-BX units undergo pre-shipment inspection (PSI). If there is an issue with BSS84AKW-BX, 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 BSS84AKW-BX part is unused and in its original packaging.
Return procedure for BSS84AKW-BX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BSS84AKW-BX Tags
-
BSZ180P03NS3EGATMA1
Infineon Technologies
-
SIRA14DP-T1-GE3
Vishay Siliconix
-
AO4419
Alpha & Omega Semiconductor Inc.
-
SISA14BDN-T1-GE3
Vishay Siliconix
-
PSMN9R5-30YLC,115
Nexperia USA Inc.
-
BUK9Y21-40E,115
Nexperia USA Inc.
-
RTQ035N03HZGTR
Rohm Semiconductor
-
FDMS7680
onsemi
-
RQ3E180BNTB
Rohm Semiconductor
-
STL6N2VH5
STMicroelectronics
-
DMPH4029LFGQ-7
Diodes Incorporated
-
DMT6015LSS-13
Diodes Incorporated
Tech Hub
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
