Infineon Technologies BSD840N L6327
- Part No.:
- BSD840N L6327
- Manufacturer:
- Infineon Technologies
- Category:
- FET, MOSFET Arrays
- Package:
- 6-VSSOP, SC-88, SOT-363
- Datasheet:
-
BSD840N L6327.pdf
- Description:
- MOSFET 2N-CH 20V 0.88A SOT363
- Quantity:
- Payment:

- Shipping:

Inventory:7,400
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Product details
Overview
BSD840N L6327 from Infineon Technologies is a dual N-channel enhancement-mode MOSFET in PG-SOT-363 package, rated for 20 V VDS, 0.88 A continuous drain current, and ultra-low 1.8 V logic-level gate drive. It features avalanche rating, AEC-Q101 qualification, and 560 mΩ RDS(on) at VGS = 1.8 V, enabling compact load switching in automotive body electronics.
For engineers reviewing the BSD840N L6327 datasheet, BSD840N L6327 pinout, BSD840N L6327 application, or BSD840N L6327 equivalent, key selection criteria include its dual-channel integration, 1.8 V threshold compatibility with low-voltage microcontrollers, AEC-Q101 qualification for automotive use, and SOT-363 thermal performance under pulsed loads.
Technical Context
This dual N-channel MOSFET operates in enhancement mode with symmetric channel pairing-only one transistor active at a time per device. Its gate threshold voltage (0.3–0.75 V) and 1.8 V-rated logic-level operation enable direct interfacing with 1.8 V/2.5 V I/Os, while avalanche energy rating (1.6 mJ) supports inductive load handling without external snubbers.
Thermal design relies on FR4 PCB layout (40 mm², 1 mm × 20 mm traces, 70 µm copper), yielding 250 K/W RthJA. Dynamic parameters-including 55 pF Ciss, 7.8 ns td(off), and 0.26 nC Qg-support fast switching in LED drivers and power management ICs where gate drive strength and capacitive loading are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS max | 20 V - supports 12 V automotive systems with margin against transients |
| ID continuous | 0.88 A at TA = 25 °C - suitable for low-power solenoid or LED string control |
| RDS(on) @ 1.8 V | 560 mΩ - enables efficient switching with 1.8 V GPIOs without level shifters |
| EAS | 1.6 mJ - withstands single-pulse inductive energy without failure |
| Ciss | 55 pF typ - limits gate drive current demand in high-frequency PWM |
| tr/tf | 2.2 ns / 0.9 ns - supports >10 MHz switching in compact DC-DC feedback paths |
| Qg | 0.26 nC - reduces gate driver power loss in battery-powered modules |
Pinout & Package
Package: PG-SOT-363 (6-pin, 2.1 × 2.0 × 0.95 mm), lead-free, halogen-free, RoHS compliant. Designed for surface-mount reflow soldering (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Source of Channel 1 | Low-side return path for first MOSFET; tied to common ground plane |
| 2 | Gate of Channel 1 | Logic-level input requiring ≤1.8 V for full enhancement |
| 3 | Drain of Channel 1 | Switched output node; rated for 20 V, 0.88 A continuous |
| 4 | Drain of Channel 2 | Independent switched output; electrically isolated from Channel 1 drain |
| 5 | Gate of Channel 2 | Second logic-level input; identical threshold and drive requirements as Pin 2 |
| 6 | Source of Channel 2 | Separate source terminal; allows floating or independent biasing of Channel 2 |
Key Features
| Feature | Design Value |
|---|---|
| Dual N-channel integration | Two independent MOSFETs in one SOT-363 footprint-reduces board area by ~40% vs. discrete singles |
| Ultra logic-level gate | Operates fully enhanced at VGS = 1.8 V-eliminates need for gate driver ICs in 1.8 V MCU designs |
| Avalanche-rated | 1.6 mJ single-pulse EAS-enables robust operation with inductive loads like relays or small motors |
| AEC-Q101 qualified | Validated for automotive temperature range (−55 °C to +150 °C) and reliability stress tests |
| Halogen-free & RoHS | Complies with IEC61249-2-21 and EU RoHS Directive-meets Tier-1 automotive supply chain requirements |
Applications
| Automotive Interior Lighting | USB-C Power Switching |
|---|---|
Use Scenario: Driving multiple LED strings in door panels and footwells using 12 V battery supply with PWM dimming. IC Role / Device Role / Timing Role: Dual-channel low-side switch controlling two independent LED groups with synchronized or staggered PWM. Use Value: 1.8 V gate threshold ensures compatibility with automotive MCUs (e.g., Infineon AURIX™) operating at 1.8 V I/O, reducing BOM count. | Use Scenario: Enabling/disabling VBUS on USB-C downstream ports in portable docking stations. IC Role / Device Role / Timing Role: Dual N-MOSFET load switch providing independent port control and reverse-current blocking via integrated body diodes. Use Value: 20 V VDS rating covers USB PD 3.0 up to 20 V, while 560 mΩ RDS(on) at 1.8 V minimizes dropout in space-constrained layouts. |
| Industrial Sensor Interface | Smart Actuator Control |
Use Scenario: Isolating and powering analog sensor subcircuits (e.g., pressure, temperature) in PLC I/O modules. IC Role / Device Role / Timing Role: Dual-channel power gating device sequencing sensor power-up/down to reduce system leakage and noise coupling. Use Value: Independent source pins (Pins 1 & 6) allow separate grounding schemes-critical for precision analog signal integrity. | Use Scenario: Driving small solenoids or latching relays in HVAC damper actuators with microcontroller-based timing. IC Role / Device Role / Timing Role: Low-side switch delivering 0.88 A pulses with controlled rise/fall times (2.2 ns / 0.9 ns) to limit EMI. Use Value: Avalanche rating (1.6 mJ) absorbs back-EMF without external clamping diodes-reducing component count and board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual N-channel logic-level MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BSS138DW-7-F | Lower VDS (50 V), higher RDS(on) (3.5 Ω @ 2.5 V), no AEC-Q101 | Not qualified for automotive; suited for general-purpose logic-level switching only | Select when cost sensitivity outweighs automotive qualification and 20 V rating suffices |
| DMN3026LSD-13 | Higher VDS (30 V), lower RDS(on) (260 mΩ @ 4.5 V), but 2.5 V VGS(th) min-requires ≥2.5 V drive | Lacks 1.8 V logic compatibility; unsuitable for 1.8 V MCU interfaces | Prefer when higher voltage margin and lower on-resistance justify gate voltage upgrade |
Compared with BSS138DW-7-F and DMN3026LSD-13, the BSD840N L6327 uniquely combines AEC-Q101 qualification, true 1.8 V logic-level operation, and dual-channel integration in SOT-363-making it the only option for space-constrained, automotive-grade 1.8 V MCU load switching.
Availability
BSD840N L6327 is available at Aetrix Electronics and suitable for automotive interior lighting, USB-C power switching, industrial sensor interface, and smart actuator control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BSD840N L6327 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification infrastructure.
The BSD840N belongs to Infineon's OptiMOS™2 Small-Signal-Transistor product line, engineered specifically for high-reliability, low-voltage logic-level switching in automotive body electronics and industrial IoT edge nodes.
FAQ
Is BSD840N L6327 pin-compatible with BSD840N?
Yes. The "L6327" suffix denotes tape-and-reel packaging (3000 pcs/reel) and lead-free finish; electrical characteristics, pinout, and package dimensions match the base BSD840N part exactly. No layout or schematic changes are required when substituting.
What is the maximum safe operating temperature for continuous operation?
The junction temperature must not exceed +150 °C. At ambient temperatures up to +85 °C, derated continuous drain current is 0.71 A (per channel). Thermal design must follow the specified 40 mm² FR4 footprint with 1 mm wide, 70 µm thick copper traces on both sides.
Does BSD840N L6327 support parallel operation of both channels?
No. The datasheet explicitly states "only one of both transistors in operation" under maximum ratings. Simultaneous conduction is not characterized or guaranteed due to thermal coupling and potential current imbalance in the shared package.
Can BSD840N L6327 replace a single-channel SOT-23 MOSFET in existing designs?
Yes, with layout adaptation. Its dual-channel structure allows consolidation of two SOT-23 devices into one SOT-363 footprint. However, pin mapping differs-designers must verify routing for independent source terminals (Pins 1 and 6) and ensure gate drive isolation between channels.
BSD840N L6327 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OptiMOS™
- Package/Case:
- 6-VSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- 2 N-Channel (Dual)
- FET Feature:
- Logic Level Gate
- Drain to Source Voltage (Vdss):
- 20V
- Current - Continuous Drain (Id) @ 25°C:
- 880mA
- Rds On (Max) @ Id, Vgs:
- 400mOhm @ 880mA, 2.5V
- Vgs(th) (Max) @ Id:
- 750mV @ 1.6µA
- Gate Charge (Qg) (Max) @ Vgs:
- 0.26nC @ 2.5V
- Input Capacitance (Ciss) (Max) @ Vds:
- 78pF @ 10V
- Power - Max:
- 500mW
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT363-PO
BSD840N L6327 FAQ
1.How can I place an order for BSD840N L6327 through Aetrix?
Please submit a Request for Quotation (RFQ) for BSD840N L6327 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 BSD840N L6327 reliable?
The price and inventory of BSD840N L6327 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSD840N L6327 is usually 5 days.
3.What payment methods are accepted for BSD840N L6327?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSD840N L6327 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSD840N L6327?
BSD840N L6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSD840N L6327 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 BSD840N L6327?
For technical support, including BSD840N L6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSD840N L6327 requirements.
6.How does Aetrix verify that BSD840N L6327 is sourced from the original manufacturer or authorized distributors?
All BSD840N L6327 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 BSD840N L6327 meets industry standards.
7.What is the process for return or replacement of BSD840N L6327?
All BSD840N L6327 units undergo pre-shipment inspection (PSI). If there is an issue with BSD840N L6327, 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 BSD840N L6327 part is unused and in its original packaging.
Return procedure for BSD840N L6327:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BSD840N L6327 Tags

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SSM6N7002KFU,LF
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2N7002DW-7-F
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SSM6L56FE,LM
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SSM6N37FU,LF
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2N7002DWH6327XTSA1
Infineon Technologies

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2N7002BKS,115
Nexperia USA Inc.

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DMG1016UDW-7
Diodes Incorporated

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UM6K33NTN
Rohm Semiconductor

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DMG6602SVT-7
Diodes Incorporated

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EM6K34T2CR
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