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Diodes Incorporated BSS138DWQ-13
- Part No.:
- BSS138DWQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FET, MOSFET Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BSS138DWQ-13.pdf
- Description:
- MOSFET 2N-CH 50V 0.2A SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:9,007
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Product details
Overview
BSS138DWQ-13 from Diodes Incorporated is a dual N-channel enhancement-mode MOSFET in SOT363 package, rated for 50V VDSS, 3.5Ω RDS(ON) at 10V VGS, and 200mA continuous drain current. It delivers low gate threshold (1.2V typ), fast switching (20ns tD(ON)/tD(OFF)), and AEC-Q101 qualification for automotive load-switching applications.
For engineers reviewing the BSS138DWQ-13 datasheet, BSS138DWQ-13 pinout, BSS138DWQ-13 application, or BSS138DWQ-13 equivalent, key selection criteria include its dual-channel configuration, 1.2V typical VGS(TH), 50pF Ciss, -55°C to +150°C operating range, and IATF 16949 manufacturing compliance.
Technical Context
This dual N-channel MOSFET integrates two matched enhancement-mode transistors in a single SOT363 package, sharing no internal connection between channels-each channel operates independently with separate gate, source, and drain terminals. Its low 1.2V typical gate threshold enables direct drive from 1.8V/3.3V logic, while 50V breakdown voltage supports 24V industrial and 12V automotive rail switching.
The device exhibits 100mS forward transconductance (gFS) at 25V VDS, 0.2A ID, and maintains RDS(ON) stability across temperature (1.4Ω min at 25°C, <2.5Ω up to 125°C). Input capacitance (Ciss = 50pF) and reverse transfer capacitance (Crss = 8.0pF) support clean, low-noise switching in high-frequency load-control circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 50V - Supports 24V system rails with 100% margin against transient spikes in automotive and industrial environments. |
| RDS(ON) | 3.5Ω max @ VGS = 10V - Enables ≤70mW conduction loss at 200mA, critical for thermally constrained PCB layouts. |
| VGS(TH) | 0.5–1.5V - Ensures reliable turn-on with 1.8V GPIO or low-voltage microcontroller outputs without level-shifting. |
| Ciss | 50pF - Limits gate drive power and minimizes EMI during 1MHz+ switching in power management ICs. |
| tD(ON)/tD(OFF) | 20ns max - Allows stable operation up to 10MHz PWM frequency in dynamic load-switching applications. |
| TJ Range | -55°C to +150°C - Validated for under-hood automotive locations and industrial control enclosures without derating. |
| Qualification | AEC-Q101 qualified - Meets stress-test requirements for automotive electronics including HBM ESD ≥2kV and temperature cycling. |
Pinout & Package
Package: SOT363 - 6-pin, surface-mount, dual-channel discrete package with 0.65mm lead pitch, 2.15mm × 2.10mm footprint, and 0.95mm height. Molded green compound (UL 94V-0), matte tin terminations, MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S1) | Source of Channel 1 | Common reference node for first MOSFET; tied to ground or low-side return path in load-switch topology. |
| 2 (G1) | Gate of Channel 1 | Logic-level control input; requires ≤100nA leakage budget and 50pF drive capability from MCU GPIO. |
| 3 (D1) | Drain of Channel 1 | High-side switch output; connects to load anode or power rail; handles up to 200mA pulsed current. |
| 4 (D2) | Drain of Channel 2 | Independent second high-side output; enables dual-load control (e.g., two sensors or LEDs) from one footprint. |
| 5 (G2) | Gate of Channel 2 | Separate logic input; allows asynchronous control of second channel without crosstalk or shared gate drive impedance. |
| 6 (S2) | Source of Channel 2 | Independent source node; may be tied to different ground domains or used in floating-source configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance | 3.5Ω max at 10V ensures ≤70mW conduction loss at full rated current, reducing thermal stress in dense layouts. |
| Low gate threshold | 1.2V typical VGS(TH) enables direct interface with 1.8V/3.3V logic without external level shifters or pull-up resistors. |
| Low input capacitance | 50pF Ciss reduces gate charge (Qg ≈ 1.2nC), lowering drive power and enabling faster edge rates. |
| AEC-Q101 qualification | Validated for automotive use with PPAP documentation, IATF 16949 manufacturing, and guaranteed lot traceability. |
| Green packaging | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb), compliant with RoHS 3 and JEDEC MSL Level 1. |
Applications
| Automotive Body Control Module | Industrial Sensor Power Gating |
|---|---|
Use Scenario: Controlling power to door-lock actuators, mirror heaters, and interior lighting in 12V vehicle systems. IC Role / Device Role / Timing Role: Dual-channel high-side load switch managing independent 200mA loads with fast enable/disable timing. Use Value: Eliminates need for two discrete SOT23-3 devices, saving 35% board area while maintaining AEC-Q101 compliance. |
Use Scenario: Enabling/disabling 4–20mA current-loop sensors in PLC I/O modules during sleep or fault states. IC Role / Device Role / Timing Role: Precision-controlled power gate with sub-1μA off-state leakage to preserve sensor calibration integrity. Use Value: 0.5μA max IDSS prevents sensor bias drift; 20ns switching supports rapid diagnostic polling cycles. |
| USB-C Port Power Switching | Medical Wearable Battery Management |
Use Scenario: Isolating VBUS power paths in dual-role USB-C ports to prevent backfeed and support dead-battery attach. IC Role / Device Role / Timing Role: Dual N-channel switch implementing independent VBUS and CC-line power control with logic-level gating. Use Value: 1.2V VGS(TH) allows direct control from USB PD controller GPIO; 50V rating covers VBUS surge tolerance. |
Use Scenario: Managing power to Bluetooth LE radios and optical heart-rate sensors in battery-powered patches. IC Role / Device Role / Timing Role: Low-leakage, thermally efficient load switch ensuring >72-hour standby with <1μA quiescent current. Use Value: 0.5μA max IDSS and -55°C to +150°C range support long-term reliability in skin-contact wearable form factors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual N-channel load-switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN2041LSD-13 | Higher RDS(ON) (4.5Ω @ 4.5V), larger TSOP-6 package (3.05mm × 1.65mm), no AEC-Q101 rating | Suitable for commercial-grade consumer electronics only; not qualified for automotive or safety-critical use | Select when cost is primary and AEC-Q101 compliance is unnecessary; verify layout clearance for larger footprint. |
| FDMA1023NZ | Lower VDSS (20V), higher RDS(ON) (5.2Ω @ 4.5V), same SOT363 footprint but non-automotive grade | Limited to 5V/3.3V logic-supplied systems; unsuitable for 12V+ automotive or industrial rails | Choose only for low-voltage portable designs where 50V rating is unnecessary and thermal margin is relaxed. |
Compared with DMN2041LSD-13 and FDMA1023NZ, BSS138DWQ-13 uniquely combines AEC-Q101 qualification, 50V rating, and SOT363 footprint-enabling drop-in replacement in automotive body electronics while delivering lower RDS(ON) and tighter VGS(TH) distribution.
Availability
BSS138DWQ-13 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, USB-C power routing, and medical wearable battery management requiring stable component supply and full AEC-Q101 traceability.
Supply support for BSS138DWQ-13 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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in IATF 16949-certified facilities.
The BSS138DWQ belongs to Diodes' AEC-Q101-qualified small-signal MOSFET product line, engineered specifically for space-constrained, high-reliability load-switching in automotive and industrial control systems.
FAQ
Is BSS138DWQ-13 pin-compatible with standard SOT363 dual-N MOSFETs like the 2N7002DW?
No-BSS138DWQ-13 uses a non-standard pinout: pins 1–3 are S1/G1/D1 and pins 4–6 are D2/G2/S2, whereas 2N7002DW assigns S1/G1/D1 to pins 1–3 and S2/G2/D2 to pins 4–6. This reversal means direct substitution causes incorrect channel wiring and potential short circuits. Always verify terminal mapping using the official Diodes SOT363 top-view diagram before layout reuse.
What is the maximum safe operating current per channel at 85°C ambient?
At TA = 85°C, derating applies due to RθJA = 625°C/W. With 200mW PD max, junction temperature rise is limited to 125°C (TJmax = 150°C), allowing ΔT = 65°C. Thus, max power = 65°C / 625°C/W = 104mW. At RDS(ON) ≈ 2.2Ω (from Fig. 6 at 85°C), ID = √(P/R) ≈ √(0.104/2.2) = 217mA - but ID rating remains 200mA per datasheet limit. So 200mA is safe at 85°C ambient with proper PCB copper area.
Does BSS138DWQ-13 include integrated ESD protection on gate terminals?
Yes-the device meets HBM ESD rating of ≥2kV per AEC-Q101 stress test requirements. This is achieved via internal gate protection diodes and optimized oxide thickness, eliminating need for external TVS components in most automotive load-switch designs. However, system-level ESD testing (IEC 61000-4-2) still requires board-level protection for direct contact events.
Can BSS138DWQ-13 be used in linear-regulator pass-transistor applications?
No-it is not characterized or rated for linear operation. The datasheet specifies only switching parameters (tD(ON), Ciss, RDS(ON)) and omits Safe Operating Area (SOA) curves, thermal resistance under DC bias, or linearity metrics. Using it as a pass element risks thermal runaway due to positive temperature coefficient of RDS(ON) and lack of SOA validation.
BSS138DWQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- 2 N-Channel (Dual)
- FET Feature:
- -
- Drain to Source Voltage (Vdss):
- 50V
- Current - Continuous Drain (Id) @ 25°C:
- 200mA
- Rds On (Max) @ Id, Vgs:
- 3.5Ohm @ 220mA, 10V
- Vgs(th) (Max) @ Id:
- 1.5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Input Capacitance (Ciss) (Max) @ Vds:
- 50pF @ 10V
- Power - Max:
- 200mW
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
BSS138DWQ-13 FAQ
1.How can I place an order for BSS138DWQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for BSS138DWQ-13 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 BSS138DWQ-13 reliable?
The price and inventory of BSS138DWQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSS138DWQ-13 is usually 5 days.
3.What payment methods are accepted for BSS138DWQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSS138DWQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSS138DWQ-13?
BSS138DWQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSS138DWQ-13 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 BSS138DWQ-13?
For technical support, including BSS138DWQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSS138DWQ-13 requirements.
6.How does Aetrix verify that BSS138DWQ-13 is sourced from the original manufacturer or authorized distributors?
All BSS138DWQ-13 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 BSS138DWQ-13 meets industry standards.
7.What is the process for return or replacement of BSS138DWQ-13?
All BSS138DWQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with BSS138DWQ-13, 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 BSS138DWQ-13 part is unused and in its original packaging.
Return procedure for BSS138DWQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BSS138DWQ-13 Tags
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SSM6N7002KFU,LF
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