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Infineon Technologies BSP320SL6433
- Part No.:
- BSP320SL6433
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BSP320SL6433.pdf
- Description:
- SMALL-SIGNAL N-CHANNEL MOSFET
- Quantity:
- Payment:
- Shipping:
Inventory:7,937
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Product details
Overview
BSP320SL6433 from Infineon Technologies is an AEC-Q101-qualified P-channel enhancement-mode MOSFET in PG-SOT223 package, with −20 V VDS, −4.5 A ID (TC=25°C), RDS(on) ≤ 85 mΩ at VGS = −4.5 V, and 100% avalanche rated. It serves as a high-side load switch in automotive body electronics such as door module power distribution.
For engineers reviewing the BSP320SL6433 datasheet, BSP320SL6433 pinout, BSP320SL6433 application, or BSP320SL6433 equivalent, key selection criteria include its AEC-Q101 qualification, SOT223 thermal performance, gate threshold voltage range (−1.0 V to −2.5 V), and guaranteed unclamped inductive switching capability.
Technical Context
This MOSFET operates in enhancement mode with a negative gate-source voltage turn-on characteristic. Its PG-SOT223 package features an exposed drain pad for improved thermal dissipation in surface-mount automotive PCBs.
The device supports logic-level gate drive down to −4.5 V and exhibits specified RDS(on) across −40°C to +175°C junction temperature range. It is characterized for repetitive avalanche energy (EAS = 30 mJ) and undergoes 100% UIS testing per AEC-Q101.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | −20 V - Maximum drain-to-source blocking voltage for 12 V automotive systems with load dump margin. |
| ID (TC=25°C) | −4.5 A - Continuous DC current rating at case temperature 25°C; derates to −2.5 A at TC=100°C. |
| RDS(on) @ VGS=−4.5 V | ≤ 85 mΩ - Ensures <190 mW conduction loss at 4.5 A, enabling compact thermal design in SOT223. |
| VGS(th) | −1.0 V to −2.5 V - Confirmed turn-on threshold compatible with 3.3 V and 5 V microcontroller GPIOs. |
| EAS | 30 mJ - Guaranteed single-pulse avalanche energy supports inductive load switching without external snubbers. |
| AEC-Q101 Qualified | Yes - Validated for automotive under-hood applications per stress test requirements including HTGB, HTRB, and AC/DC life tests. |
Pinout & Package
Package: PG-SOT223 (leadless variant of standard SOT-223), with Drain connected to exposed thermal pad on bottom side; Pin 1 = Gate, Pin 2 = Source, Pin 3 = Drain (tab).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Gate | Control terminal; accepts −4.5 V to 0 V logic-level drive; input capacitance Ciss = 420 pF typical. |
| Pin 2 | Source | Reference node for gate drive; tied to system ground or high-side return path in floating configurations. |
| Pin 3 / Tab | Drain | Main current-carrying terminal and thermal interface; electrically and thermally connected to PCB copper pour. |
Key Features
| Feature | Design Value |
|---|---|
| Pb-free, RoHS-compliant plating | Meets EU Directive 2011/65/EU; no lead in termination finish; qualified for automotive reflow profiles. |
| 100% UIS tested | Each unit validated for unclamped inductive switching up to EAS = 30 mJ - eliminates batch-level reliability uncertainty. |
| Thermally enhanced PG-SOT223 | Exposed drain pad reduces RθJA to 60 K/W (on 2-layer 1-in² copper), enabling >2 W continuous dissipation at TA=85°C. |
| −40°C to +175°C operation | Full parametric specification guaranteed across full automotive temperature range - no derating assumptions required. |
Applications
| Automotive Door Module | LED Headlamp Dimming |
|---|---|
Use Scenario: Power switching for window lift motors, mirror actuators, and interior lighting in OEM door control units. IC Role / Device Role / Timing Role: High-side load switch controlling 12 V supply to resistive/inductive loads; driven by 3.3 V microcontroller PWM output. Use Value: Eliminates need for external level-shifting circuitry due to −2.5 V max VGS(th); 85 mΩ RDS(on) limits self-heating during 3 s stall conditions. |
Use Scenario: PWM-controlled dimming of low-beam LED arrays in adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: High-side constant-current switch synchronizing with MCU PWM at 1–2 kHz; handles 2.5 A peak LED current. Use Value: Avalanche rating ensures robustness against LED string open-circuit transients; SOT223 footprint allows placement near optics without thermal interference. |
| Body Control Module (BCM) | Engine Bay Sensors |
Use Scenario: Power gating for HVAC blower motor drivers, seat heater controllers, and trunk release solenoids. IC Role / Device Role / Timing Role: Low-duty-cycle, high-reliability power switch activated via CAN/LIN command; operates intermittently for >10 years. Use Value: AEC-Q101 qualification and 175°C TJ(max) ensure field longevity in hot under-dash environments; RDS(on) stability over temperature avoids calibration drift. |
Use Scenario: Power switching for oxygen sensors, knock sensors, and MAP sensors located near exhaust manifolds. IC Role / Device Role / Timing Role: High-side enable switch delivering regulated 5 V or 12 V to sensor subcircuits; activated only during active measurement cycles. Use Value: Guaranteed operation at +175°C junction enables direct mounting on engine harness connectors; low gate charge (QG = 9.5 nC) minimizes switching losses during brief enable pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar P-channel automotive MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IPD250N04LG | N-channel, 40 V, 250 A, TO-252; requires high-side driver IC and level shifter. | Suitable for higher-current (>10 A) chassis modules but increases BOM count and layout complexity. | Choose only when >10 A continuous current or lower RDS(on) (<5 mΩ) is mandatory. |
| IRF9530NPBF | P-channel, 100 V, 12 A, TO-220; not AEC-Q101 qualified; RDS(on) = 200 mΩ @ −10 V. | Limited to non-safety-critical cabin applications; unsuitable for under-hood use above 150°C. | Select only for cost-sensitive, non-automotive industrial prototypes where qualification is waived. |
Compared with IPD250N04LG and IRF9530NPBF, BSP320SL6433 delivers optimal balance of AEC-Q101 compliance, SOT223 space efficiency, and −4.5 V logic compatibility - making it the preferred choice for production-grade 12 V automotive high-side switching below 5 A.
Availability
BSP320SL6433 is available at Aetrix Electronics and suitable for automotive body electronics, LED lighting control, and engine bay sensor power management requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BSP320SL6433 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, and industrial control solutions, with global manufacturing and qualification infrastructure.
BSP320SL6433 belongs to the OptiMOS™ 20 V P-channel portfolio, engineered specifically for high-reliability 12 V automotive power distribution where space, thermal performance, and qualification rigor are critical.
FAQ
Is BSP320SL6433 pin-compatible with BSP320S?
Yes - BSP320SL6433 uses the identical PG-SOT223 package and pinout (Gate-Source-Drain) as BSP320S. The "L6433" suffix denotes tape-and-reel packaging (4000 pcs/reel) and revision-controlled manufacturing per Rev 2.3 (2008-03-26); electrical and thermal specs are unchanged.
What is the maximum allowable PCB copper area for thermal relief in PG-SOT223?
For optimal thermal performance, Infineon recommends ≥250 mm² (0.4 in²) of 2-oz copper connected to the exposed drain pad on at least one layer. Thermal vias (≥6×0.3 mm diameter) to inner ground planes further reduce RθJA to ≤50 K/W in multi-layer boards.
Does BSP320SL6433 support 3.3 V microcontroller gate drive without external level shifting?
Yes - with VGS(th) ranging from −1.0 V to −2.5 V and RDS(on) fully specified at VGS = −4.5 V, the device switches fully on using standard 3.3 V GPIO pulled to ground. No level shifter or charge pump is required for logic-level operation.
How is avalanche ruggedness verified for each production lot?
Every production lot undergoes 100% unclamped inductive switching (UIS) testing per AEC-Q101. Each device is subjected to a single pulse at ID = 4.5 A, L = 100 µH, VDD = 20 V, yielding EAS ≥ 30 mJ - documented in lot-specific test reports provided upon request.
BSP320SL6433 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- SIPMOS®
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Bulk
- Product Status:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 60 V
- Current - Continuous Drain (Id) @ 25°C:
- 2.9A (Tj)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 120mOhm @ 2.9A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 20µA
- Gate Charge (Qg) (Max) @ Vgs:
- 12 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 340 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 1.8W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT223-4-21
BSP320SL6433 FAQ
1.How can I place an order for BSP320SL6433 through Aetrix?
Please submit a Request for Quotation (RFQ) for BSP320SL6433 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 BSP320SL6433 reliable?
The price and inventory of BSP320SL6433 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSP320SL6433 is usually 5 days.
3.What payment methods are accepted for BSP320SL6433?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSP320SL6433 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSP320SL6433?
BSP320SL6433 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSP320SL6433 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 BSP320SL6433?
For technical support, including BSP320SL6433 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSP320SL6433 requirements.
6.How does Aetrix verify that BSP320SL6433 is sourced from the original manufacturer or authorized distributors?
All BSP320SL6433 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 BSP320SL6433 meets industry standards.
7.What is the process for return or replacement of BSP320SL6433?
All BSP320SL6433 units undergo pre-shipment inspection (PSI). If there is an issue with BSP320SL6433, 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 BSP320SL6433 part is unused and in its original packaging.
Return procedure for BSP320SL6433:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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