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Infineon Technologies BSO203SPNTMA1
- Part No.:
- BSO203SPNTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
BSO203SPNTMA1.pdf
- Description:
- MOSFET P-CH 20V 9A 8DSO
- Quantity:
- Payment:
- Shipping:
Inventory:9,577
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Product details
Overview
BSO203SPNTMA1 from Infineon Technologies is a P-channel enhancement-mode MOSFET in SO-8 package, rated for -20 V VDS, 21 mΩ RDS(on) at VGS = -4.5 V and ID = -9 A, with Super Logic Level gate drive (2.5 V threshold), avalanche-rated operation, and 150°C maximum junction temperature. It serves as a high-efficiency low-side load switch in DC-DC converters and power management circuits.
For engineers reviewing the BSO203SPNTMA1 datasheet, BSO203SPNTMA1 pinout, BSO203SPNTMA1 application, or BSO203SPNTMA1 equivalent, key selection criteria include its -2.5 V logic-compatible gate threshold, -9 A continuous drain current at 70°C, 97 mJ single-pulse avalanche energy, and SO-8 thermal performance with RthJA = 53 K/W on 6 cm² copper.
Technical Context
This device implements a trench-based OptiMOS™-P structure optimized for low RDS(on) and fast switching in compact surface-mount packages. Its gate threshold voltage range (-0.6 to -1.2 V) ensures reliable turn-on with 2.5 V logic drivers while maintaining noise immunity.
Dynamic parameters include Ciss = 2265 pF, Qg = 33.6–50.4 nC, and tr/tf = 27–40 ns / 69–104 ns (VDD = -10 V, ID = -1 A, RG = 6 Ω), supporting high-frequency synchronous rectification and PWM-controlled power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | -20 V - Maximum blocking voltage for 24 V rail applications with margin |
| RDS(on) | 12.9–21 mΩ @ VGS = -4.5 V, ID = -9 A - Enables <1.9 W conduction loss at full load |
| ID (cont) | -9 A @ TA = 25°C - Supports high-current load switching without forced cooling |
| EAS | 97 mJ - Withstands inductive energy spikes in motor drives and solenoid controls |
| VGS(th) | -0.6 to -1.2 V - Ensures robust turn-on with 2.5 V microcontroller outputs |
| Qg | 33.6–50.4 nC - Determines gate driver power requirement and switching speed trade-off |
| RthJA | 53 K/W on 6 cm² copper - Enables thermal design with natural convection only |
Pinout & Package
BSO203SPNTMA1 uses an SO-8 package with exposed drain pad (pins 1–4 and 5–8 are source and drain terminals respectively). The package supports high-power dissipation via bottom-side thermal pad soldered to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Source (S) | Common return path for load current; electrically tied internally |
| 5, 6, 7, 8 | Drain (D) | Main power output node; connected to thermal pad for heat transfer |
| G (pin not labeled; gate terminal on die) | Gate (G) | Control input; requires external gate resistor to limit dv/dt-induced turn-on |
Key Features
| Feature | Design Value |
|---|---|
| Super Logic Level gate | Guaranteed turn-on with 2.5 V drive, enabling direct interface with low-voltage MCUs |
| Avalanche rated | 97 mJ single-pulse energy handling eliminates need for external snubbers in inductive loads |
| dv/dt rated | -6 kV/µs immunity prevents false triggering during fast voltage transients |
| 150°C operation | Enables use in sealed enclosures or high-ambient industrial environments without derating |
Applications
| Motor Control | DC-DC Converter |
|---|---|
Use Scenario: Driving brushed DC motors in automotive seat adjusters and HVAC actuators. IC Role / Device Role / Timing Role: Low-side N-channel replacement using P-channel topology for simplified gate drive. Use Value: Eliminates high-side driver complexity while delivering 9 A peak current and surviving 97 mJ inductive kickback. | Use Scenario: Synchronous rectifier in buck converter output stage for 12 V to 3.3 V conversion. IC Role / Device Role / Timing Role: Power switch conducting during low-side phase of PWM cycle. Use Value: 12.9 mΩ RDS(on) reduces conduction loss to <0.4 W at 5 A, improving efficiency by >2% vs. Schottky diode. |
| Power Distribution | Hot-Swap Circuit |
Use Scenario: Load switch for USB-C PD power delivery modules requiring reverse polarity protection. IC Role / Device Role / Timing Role: Reverse-polarity protected main power path switch with controlled inrush. Use Value: Integrated body diode enables reverse-blocking; -20 V rating covers 19.2 V PD3.1 max, and 2.5 V logic compatibility simplifies control. | Use Scenario: Inrush current limiter in server backplane hot-swap controllers. IC Role / Device Role / Timing Role: Controlled turn-on switch with gate slew-rate limiting to manage dI/dt. Use Value: Gate plateau voltage of -1.6 V allows precise timing of soft-start via RC gate network, limiting peak inrush to <15 A. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar P-channel logic-level MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRF7425PBF | RDS(on) = 28 mΩ @ VGS = -4.5 V; SO-8; no avalanche rating | Lower current capability (-5.7 A); unsuitable for repetitive inductive switching | Prefer when cost sensitivity outweighs reliability requirements in non-critical loads |
| SI2301DS-T1-E3 | RDS(on) = 115 mΩ @ VGS = -2.5 V; SOT-23; 3 A rating | Not pin-compatible; limited to <1 A continuous due to thermal constraints | Select only for space-constrained low-power bias rails where SO-8 footprint is unavailable |
Compared with IRF7425PBF and SI2301DS-T1-E3, BSO203SPNTMA1 delivers superior thermal performance (53 K/W), higher current capacity (-9 A), and certified avalanche ruggedness-making it the only choice for industrial-grade motor and power supply designs demanding long-term reliability under transient stress.
Availability
BSO203SPNTMA1 is available at Aetrix Electronics and suitable for motor control, DC-DC converter, and hot-swap circuit applications requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for BSO203SPNTMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs and discrete devices.
BSO203SPNTMA1 belongs to the OptiMOS™-P small-signal transistor product line, designed specifically for high-efficiency, logic-level-driven P-channel switching in space-constrained power systems.
FAQ
What is the maximum safe operating temperature for BSO203SPNTMA1?
The device supports continuous operation up to +150°C junction temperature, with thermal derating beginning above 25°C ambient. Its RthJA of 53 K/W on 6 cm² copper allows full -9 A current at 70°C ambient, verified per JEDEC JESD51-2 standards.
Does BSO203SPNTMA1 require a gate resistor in typical applications?
Yes-a series gate resistor (typically 10–47 Ω) is required to control dv/dt-induced turn-on and limit peak gate current. The device's -6 kV/µs dv/dt rating assumes proper gate drive impedance; omitting the resistor risks unintended conduction during fast VDS transitions.
Can BSO203SPNTMA1 be used as a high-side switch?
No-it is optimized as a low-side switch. As a P-channel device with source tied to ground, it functions as a high-side switch only when source is connected to the positive rail, but its gate drive requirements (negative VGS) and lack of integrated charge pump make external high-side driver circuitry necessary and inefficient.
Is the body diode suitable for reverse current conduction in bidirectional applications?
Yes-the integrated body diode has VSD = -0.82 to -1.25 V at |IF| = |ID| and trr = 34–42 ns, making it usable for freewheeling and reverse current paths in H-bridge or OR-ing configurations, provided peak reverse current remains within -36 A pulsed rating.
BSO203SPNTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OptiMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- P-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 20 V
- Current - Continuous Drain (Id) @ 25°C:
- 9A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 2.5V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 21mOhm @ 9A, 4.5V
- Vgs(th) (Max) @ Id:
- 1.2V @ 100µA
- Gate Charge (Qg) (Max) @ Vgs:
- 50.4 nC @ 4.5 V
- Vgs (Max):
- ±12V
- Input Capacitance (Ciss) (Max) @ Vds:
- 2265 pF @ 15 V
- FET Feature:
- -
- Power Dissipation (Max):
- 2.35W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-8
BSO203SPNTMA1 FAQ
1.How can I place an order for BSO203SPNTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BSO203SPNTMA1 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 BSO203SPNTMA1 reliable?
The price and inventory of BSO203SPNTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSO203SPNTMA1 is usually 5 days.
3.What payment methods are accepted for BSO203SPNTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSO203SPNTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSO203SPNTMA1?
BSO203SPNTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSO203SPNTMA1 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 BSO203SPNTMA1?
For technical support, including BSO203SPNTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSO203SPNTMA1 requirements.
6.How does Aetrix verify that BSO203SPNTMA1 is sourced from the original manufacturer or authorized distributors?
All BSO203SPNTMA1 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 BSO203SPNTMA1 meets industry standards.
7.What is the process for return or replacement of BSO203SPNTMA1?
All BSO203SPNTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BSO203SPNTMA1, 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 BSO203SPNTMA1 part is unused and in its original packaging.
Return procedure for BSO203SPNTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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