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NXP Semiconductors BSS84AKW-B115
- Part No.:
- BSS84AKW-B115
- Manufacturer:
- NXP Semiconductors
- Category:
- FETs, MOSFETs
- Package:
- SC-70, SOT-323
- Datasheet:
-
BSS84AKW-B115.pdf
- Description:
- MOSFET P-CH
- Quantity:
- Payment:
- Shipping:
Inventory:9,798
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Product details
Overview
BSS84AKW-B115 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 - optimized for high-side load switching and relay driving in space-constrained automotive and industrial control circuits.
For engineers reviewing the BSS84AKW-B115 datasheet, BSS84AKW-B115 pinout, BSS84AKW-B115 application, or BSS84AKW-B115 equivalent, key selection criteria include logic-level gate drive compatibility (VGS(th) = −1.6 V typ), AEC-Q101 qualification, ESD robustness (1 kV HBM), and thermal performance on FR4 PCBs with standard footprint.
Technical Context
This discrete MOSFET uses Trench MOSFET technology to achieve low RDS(on) and fast switching (td(on) = 13 ns typ, tf = 25 ns typ) while maintaining stable threshold voltage (−1.6 V typ) across temperature. Its P-channel configuration enables high-side switching without level-shifting circuitry.
The device features integrated source-drain diode (VSD = −0.85 V typ at −115 mA), supports peak drain current up to −0.6 A (10 µs pulse), and delivers 260 mW total power dissipation at 25 °C ambient on standard FR4 PCB - with Rth(j-a) = 350–400 K/W under optimized mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | −50 V - maximum blocking voltage for high-side loads in 24 V automotive systems |
| ID (continuous) | −150 mA at Tamb = 25 °C - sufficient for driving small relays, LEDs, or logic-level signal paths |
| RDS(on) | 4.5 Ω typ at VGS = −10 V - ensures <150 mW conduction loss at full rated current |
| VGS(th) | −1.6 V typ - enables direct interface with 3.3 V/5 V microcontroller GPIOs |
| QG(tot) | 0.26 nC typ - supports >1 MHz switching in low-power DC-DC or PWM control stages |
| ESD rating | 1000 V HBM - meets IEC 61000-4-2 system-level robustness requirements |
| Tj range | −55 °C to +150 °C - qualified for under-hood automotive environments per AEC-Q101 |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: 3-pin, single-ended lead frame, 1.3 mm × 1.8 mm footprint, 0.65 mm pitch, 0.9 mm max height - optimized for automated placement and reflow soldering on dense PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Gate | Control terminal; requires ≤20 V absolute gate-source voltage; logic-level compatible down to −1.6 V threshold |
| 2 (S) | Source | Reference node for gate drive; connected to positive rail in high-side switch configuration |
| 3 (D) | Drain | Load connection point; thermally enhanced pad design supports 1 cm² copper area for 310 mW dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | Operates fully enhanced with VGS ≥ −3.5 V - eliminates need for external gate drivers in MCU-controlled switches |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics |
| Trench MOSFET architecture | Enables lower RDS(on) and faster switching vs. planar MOSFETs of same die size and voltage class |
| Integrated ESD protection | 1 kV HBM rating reduces need for external TVS diodes in board-level ESD protection schemes |
| Source-drain diode | VSD = −0.85 V typ - supports freewheeling in inductive load switching without external flyback diode |
Applications
| Relay Driver | High-Speed Line Driver |
|---|---|
|
Use Scenario: Driving 12 V/24 V automotive relay coils with microcontroller GPIO output. IC Role / Device Role / Timing Role: High-side load switch controlling coil energization/de-energization. Use Value: −150 mA rating and −50 V VDS safely handle relay back-EMF; logic-level gate enables direct MCU interface without level shifters. |
Use Scenario: Transmitting digital signals across noisy industrial bus lines with fast edge rates. IC Role / Device Role / Timing Role: Active pull-up/pull-down switch in differential or single-ended line driver stage. Use Value: 25 ns fall time and 13 ns turn-on delay support >10 Mbps data rates; low capacitance (Ciss = 24 pF typ) minimizes signal distortion. |
| High-Side Load Switch | Switching Circuits |
|
Use Scenario: Power gating of sensors or communication peripherals in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Controlled power path between supply rail and load, enabling low-quiescent-current sleep modes. Use Value: −1 µA IDSS leakage at −50 V ensures minimal standby current; AEC-Q101 qualification supports extended field life in harsh environments. |
Use Scenario: Discrete switching in DC-DC converter synchronous rectification or LED dimming circuits. IC Role / Device Role / Timing Role: Low-loss power switch operating in hard-switched or PWM mode. Use Value: 0.26 nC total gate charge reduces driver power loss; RDS(on) stability over temperature (8 Ω max at 150 °C) maintains efficiency across operating range. |
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 |
|---|---|---|---|
| DMN2053LW-7 | −20 V VDS, −2.8 A ID, 0.095 Ω RDS(on), SOT-363 package | Higher current, lower voltage - suited for 5 V logic rails but not 24 V automotive loads | Select when higher current and lower RDS(on) are required at ≤20 V operation; not drop-in due to different voltage rating and package pinout. |
| SI2301DS-T1-BE3 | −20 V VDS, −2.6 A ID, 0.115 Ω RDS(on), SOT-23 package | Higher current, lower voltage, larger SOT-23 footprint - lacks AEC-Q101 qualification | Choose for cost-sensitive consumer applications needing higher current; avoid where automotive reliability or 50 V blocking is mandatory. |
Compared with DMN2053LW-7 and SI2301DS-T1-BE3, BSS84AKW-B115 uniquely balances −50 V blocking, AEC-Q101 qualification, and SOT323 compactness - making it the only option among the three validated for 24 V automotive high-side switching with logic-level drive.
Availability
BSS84AKW-B115 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, and portable equipment power management requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant discretes.
Supply support for BSS84AKW-B115 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 - delivering discrete, logic, and MOSFET solutions for automotive, industrial, and mobile markets.
The BSS84AKW-B115 belongs to Nexperia's AEC-Q101-qualified TrenchMOS portfolio, engineered specifically for robust, space-efficient high-side switching in automotive and industrial control systems.
FAQ
What is the maximum continuous drain current rating for BSS84AKW-B115 at 100 °C ambient temperature?
The BSS84AKW-B115 supports −95 mA continuous drain current at Tamb = 100 °C, as specified in the Limiting Values table under VGS = −10 V conditions. This derating reflects thermal constraints of the SOT323 package on standard FR4 PCBs and ensures reliable operation in elevated-temperature environments such as engine compartments or enclosed industrial enclosures.
Is BSS84AKW-B115 pin-compatible with the standard BSS84 series?
Yes, BSS84AKW-B115 shares identical SOT323 (SC-70) pinout - Gate (Pin 1), Source (Pin 2), Drain (Pin 3) - with all BSS84 variants including BSS84, BSS84,115, and BSS84AKW. The "B115" suffix denotes a specific manufacturing lot and tape-and-reel packaging variant, not a functional or mechanical deviation.
Does BSS84AKW-B115 include intrinsic ESD protection, and what is its rating?
Yes, BSS84AKW-B115 integrates on-die ESD protection rated at 1000 V HBM (Human Body Model), as confirmed in the Features and Limiting Values sections. This allows direct integration into systems meeting IEC 61000-4-2 Level 2 (±4 kV contact) without requiring additional external ESD components in most cases.
What is the typical gate threshold voltage (VGS(th)) of BSS84AKW-B115, and how does it vary with temperature?
The BSS84AKW-B115 has a typical VGS(th) of −1.6 V at Tj = 25 °C, with minimum −1.1 V and maximum −2.1 V. As shown in Figure 12, VGS(th) decreases linearly with rising junction temperature - approximately −1.2 V at 150 °C - ensuring predictable turn-on behavior across its full −55 °C to +150 °C operating range.
Can BSS84AKW-B115 be used in high-frequency PWM applications, and what gate charge parameters support this?
Yes, BSS84AKW-B115 is suitable for high-frequency PWM applications up to several MHz due to its low total gate charge of 0.26 nC typ (VDS = −25 V, ID = −200 mA), fast switching times (td(on) = 13 ns, tf = 25 ns), and low input capacitance (Ciss = 24 pF typ). These parameters reduce driver power loss and enable clean edge transitions in DC-DC controllers and LED dimmers.
BSS84AKW-B115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Active
- 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):
- 260mW (Ta), 830mW (Tc)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70
BSS84AKW-B115 FAQ
1.How can I place an order for BSS84AKW-B115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BSS84AKW-B115 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-B115 reliable?
The price and inventory of BSS84AKW-B115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSS84AKW-B115 is usually 5 days.
3.What payment methods are accepted for BSS84AKW-B115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSS84AKW-B115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSS84AKW-B115?
BSS84AKW-B115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSS84AKW-B115 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-B115?
For technical support, including BSS84AKW-B115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSS84AKW-B115 requirements.
6.How does Aetrix verify that BSS84AKW-B115 is sourced from the original manufacturer or authorized distributors?
All BSS84AKW-B115 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-B115 meets industry standards.
7.What is the process for return or replacement of BSS84AKW-B115?
All BSS84AKW-B115 units undergo pre-shipment inspection (PSI). If there is an issue with BSS84AKW-B115, 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-B115 part is unused and in its original packaging.
Return procedure for BSS84AKW-B115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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