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Diodes Incorporated BSS84DW-7
- Part No.:
- BSS84DW-7
- Manufacturer:
- Diodes Incorporated
- Category:
- FET, MOSFET Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BSS84DW-7.pdf
- Description:
- MOSFET 2P-CH 50V 0.13A SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:3,211
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Product details
Overview
BSS84DW-7 from Diodes Incorporated is a dual P-channel enhancement-mode MOSFET in SOT363 package, rated for -50V VDSS, 10Ω RDS(ON) @ VGS = -5V, and -130mA continuous drain current at +25°C. It serves as a compact, low-power analog or power-management switch in space-constrained portable electronics and interface circuits.
For engineers reviewing the BSS84DW-7 datasheet, BSS84DW-7 pinout, BSS84DW-7 application, or BSS84DW-7 equivalent, key selection criteria include verified dual P-channel topology, gate threshold voltage (-0.8 to -2.0V), low input capacitance (45pF Ciss), thermal resistance (417°C/W), and JEDEC-qualified reliability for industrial and automotive-adjacent designs.
Technical Context
This dual discrete MOSFET integrates two identical P-channel devices in a single SOT363 package with independent terminals. Each channel supports -50V blocking capability and operates with gate threshold voltage centered at -1.6V, enabling direct interfacing with 3.3V/5V logic without level shifting.
Its low 45pF input capacitance and 10ns/18ns turn-on/turn-off delay times support clean switching up to several hundred kHz in load-switching and signal-gating applications. The device is characterized across -55°C to +150°C and qualified per AEC-Q standards for high-reliability use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | -50V maximum drain-source breakdown voltage - ensures safe operation in 24V rail and higher reverse-biased analog paths |
| RDS(ON) | 6–10Ω @ VGS = -5V - enables <130mW conduction loss at -130mA, suitable for low-power load switching |
| ID (max) | -130mA continuous drain current at +25°C - defines usable current range for signal routing and bias control |
| Ciss | 45pF typical input capacitance - minimizes gate drive burden and supports fast edge rates in digital control |
| tD(ON)/tD(OFF) | 10ns / 18ns typical switching delays - supports sub-microsecond transitions in timing-critical analog gating |
| RθJA | 417°C/W junction-to-ambient thermal resistance - requires minimal PCB copper area for thermal management in FR-4 layouts |
| VGS(th) | -0.8 to -2.0V threshold range - guarantees reliable turn-on with standard 3.3V CMOS outputs driving the gate |
Pinout & Package
Package: SOT363 - surface-mount, 6-pin, dual-transistor configuration with exposed pad not electrically connected; molded green compound, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Source A) | Channel A source terminal | Common reference node for first P-MOSFET; tied to higher potential in high-side switch configuration |
| 2 (Gate A) | Channel A gate terminal | Control input for first transistor; accepts logic-level negative voltage relative to Source A |
| 3 (Drain A) | Channel A drain terminal | Switched output node for Channel A; connects to load or signal path being controlled |
| 4 (Drain B) | Channel B drain terminal | Independent switched output for second P-MOSFET; enables dual-path isolation or redundancy |
| 5 (Gate B) | Channel B gate terminal | Separate control input for second transistor; allows asynchronous or complementary switching |
| 6 (Source B) | Channel B source terminal | Reference node for second P-MOSFET; may be tied to same or different rail as Source A |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(ON) | 6Ω typical at -5V gate drive - reduces conduction loss in battery-powered load switches |
| Low VGS(th) | -1.6V typical threshold - ensures full enhancement with 3.3V logic without external pull-up or level shift |
| Low Ciss | 45pF typical - limits gate charge (Qg ≈ 1.5nC) and eases drive from microcontroller GPIOs |
| Fast switching | 10ns tD(ON) - supports clean signal gating in audio muting and data-line isolation |
| AEC-Q qualified | JEDEC-compliant reliability - validated for extended temperature cycling and humidity exposure per AEC-Q200 |
Applications
| USB Port Power Switching | Low-Voltage Analog Signal Routing |
|---|---|
|
Use Scenario: Isolating VBUS power to individual USB peripheral ports in portable hubs or docking stations. IC Role / Device Role / Timing Role: Dual high-side P-MOSFET switch controlling 5V supply enable per port with independent gate control. Use Value: Prevents backfeed between ports and enables dynamic power allocation using minimal board area and no external drivers. |
Use Scenario: Multiplexing audio or sensor signals between multiple sources and a shared ADC or amplifier input. IC Role / Device Role / Timing Role: Bidirectional analog switch with low on-resistance and minimal charge injection (<0.5pC). Use Value: Maintains signal integrity below 1MHz with <0.1% THD+N due to matched RDS(ON) and low Coss. |
| Microcontroller I/O Expansion | Backup Power Path Selection |
|
Use Scenario: Extending GPIO count by enabling/disabling pull-up networks or LED drivers via software-controlled gates. IC Role / Device Role / Timing Role: Logic-level compatible P-channel switch translating MCU output states into higher-voltage enable signals. Use Value: Eliminates need for discrete transistors and base resistors while supporting 3.3V/5V mixed-signal systems. |
Use Scenario: Selecting between main and backup power rails (e.g., Li-ion vs. coin cell) in always-on IoT sensors. IC Role / Device Role / Timing Role: Reverse-polarity protected OR-ing switch with automatic failover based on rail voltage comparison. Use Value: Achieves seamless switchover with <100ns interruption using dual-channel coordinated gate biasing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual P-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMG1012T | Lower RDS(ON) (3.5Ω @ -4.5V) but higher Ciss (90pF); SOT-563 package (5-pin, shared source) | Optimized for higher-current load switching (>200mA), less suitable for high-frequency analog routing | Choose when lower conduction loss outweighs switching speed and dual independent sources are not required |
| FDMA1023PZ | Higher VDSS (-60V), tighter VGS(th) distribution (-1.0 to -2.2V); WDFN-6 package with thermal pad | Better suited for 48V industrial bus monitoring; requires reflow-optimized layout and thermal vias | Prefer for elevated voltage domains and thermally demanding environments where PCB real estate permits larger footprint |
Compared with DMG1012T and FDMA1023PZ, BSS84DW-7 offers balanced RDS(ON), speed, and layout simplicity in the industry-standard SOT363 - ideal for cost-sensitive, space-constrained consumer and embedded designs requiring independent dual-channel control.
Availability
BSS84DW-7 is available at Aetrix Electronics and suitable for USB power management, analog signal routing, and microcontroller I/O expansion requiring stable component supply and long-term manufacturability.
Supply support for BSS84DW-7 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design centers across Asia, Europe, and North America.
The BSS84DW-7 belongs to Diodes' general-purpose small-signal MOSFET product line, engineered for compact, low-power switching in portable, industrial, and automotive-qualified systems where reliability and footprint efficiency are critical.
FAQ
Is BSS84DW-7 pin-compatible with BSS84DWQ?
Yes - BSS84DW-7 and BSS84DWQ share identical SOT363 pinout and electrical specifications; the Q suffix denotes AEC-Q200 qualification with additional test screening, while both parts use the same die and package construction.
Can BSS84DW-7 operate reliably at 125°C junction temperature?
Yes - its specified operating range extends to +150°C junction temperature, and RDS(ON) increases only 1.8× from 25°C to 125°C per Figure 5, maintaining functional performance under sustained thermal stress in enclosed enclosures.
What is the maximum safe continuous drain current at 85°C ambient?
At TA = 85°C, derated power dissipation is ~170mW (per Fig. 1), limiting continuous ID to approximately -95mA assuming 10Ω RDS(ON); this ensures junction temperature stays within 150°C with standard FR-4 PCB layout.
Does BSS84DW-7 require gate resistors for ESD protection in handheld applications?
No external gate resistor is required for basic ESD robustness - the device features integrated gate protection diodes and meets HBM >2kV per JESD22-A114; however, a 10Ω series resistor is recommended for high-speed switching to damp ringing in long PCB traces.
BSS84DW-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- 2 P-Channel (Dual)
- FET Feature:
- Logic Level Gate
- Drain to Source Voltage (Vdss):
- 50V
- Current - Continuous Drain (Id) @ 25°C:
- 130mA
- Rds On (Max) @ Id, Vgs:
- 10Ohm @ 100mA, 5V
- Vgs(th) (Max) @ Id:
- 2V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Input Capacitance (Ciss) (Max) @ Vds:
- 45pF @ 25V
- Power - Max:
- 300mW
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
BSS84DW-7 FAQ
1.How can I place an order for BSS84DW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BSS84DW-7 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 BSS84DW-7 reliable?
The price and inventory of BSS84DW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSS84DW-7 is usually 5 days.
3.What payment methods are accepted for BSS84DW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSS84DW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSS84DW-7?
BSS84DW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSS84DW-7 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 BSS84DW-7?
For technical support, including BSS84DW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSS84DW-7 requirements.
6.How does Aetrix verify that BSS84DW-7 is sourced from the original manufacturer or authorized distributors?
All BSS84DW-7 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 BSS84DW-7 meets industry standards.
7.What is the process for return or replacement of BSS84DW-7?
All BSS84DW-7 units undergo pre-shipment inspection (PSI). If there is an issue with BSS84DW-7, 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 BSS84DW-7 part is unused and in its original packaging.
Return procedure for BSS84DW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BSS84DW-7 Tags
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