Infineon Technologies BSP296L6433HTMA1
- Part No.:
- BSP296L6433HTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BSP296L6433HTMA1.pdf
- Description:
- MOSFET N-CH 100V 1.1A SOT223-4
- Quantity:
- Payment:

- Shipping:

Inventory:9,825
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Product details
Overview
BSP296L6433HTMA1 from Infineon Technologies is an N-channel logic-level enhancement-mode SIPMOS small-signal transistor rated for 100 V VDS, 1 A continuous drain current at TA = 42 °C, and 0.8 Ω RDS(on) at VGS = 10 V. It features low gate threshold voltage (0.8–2.0 V), integrated body diode, and SOT-223 package-used in 24 V industrial power switches and LED load drivers.
For engineers reviewing the BSP296L6433HTMA1 datasheet, BSP296L6433HTMA1 pinout, BSP296L6433HTMA1 application, or BSP296L6433HTMA1 equivalent, key selection criteria include logic-level gate drive compatibility, thermal resistance ≤70 K/W, 100 V breakdown margin, and SOT-223 footprint suitability for space-constrained PCBs.
Technical Context
This discrete MOSFET operates in enhancement mode with a silicon-based SIPMOS structure optimized for low-voltage gate control. Its 0.8–2.0 V VGS(th) enables direct interfacing with 3.3 V and 5 V microcontrollers without level-shifting circuitry.
The device integrates a robust body diode rated for 1 A continuous forward current and 0.95–1.3 V VSD at IF = 2 A, supporting bidirectional current paths in H-bridge and flyback configurations. Dynamic parameters include Ciss = 300–400 pF and td(off) = 120–160 ns under standard switching conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V - supports 24 V/48 V industrial bus systems with 2× safety margin |
| ID (continuous) | 1 A at TA = 42 °C - suitable for medium-power switching loads with minimal heatsinking |
| RDS(on) | 0.8 Ω max at VGS = 10 V - ensures <1 W conduction loss at 1 A, enabling thermally efficient operation |
| VGS(th) | 0.8–2.0 V - guarantees turn-on with standard logic outputs (3.3 V/5 V MCU GPIO) |
| Ciss | 300–400 pF - limits gate drive power requirement and supports >1 MHz switching in low-noise designs |
| Tj range | −55 to +150 °C - qualified for extended-temperature industrial and automotive under-hood applications |
| RthJA | ≤70 K/W - allows 1.8 W dissipation on standard 40 mm × 40 mm PCB with 6 cm² copper pour |
Pinout & Package
SOT-223 package with 4-pin configuration: Pin 1 = Gate, Pin 2 = Drain, Pin 3 = Source, Pin 4 = Drain (tab). The exposed drain tab provides low-thermal-resistance path to PCB copper and serves as primary heat sink.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Gate | Logic-level control input; requires ≤2.0 V to fully enhance; low Ciss reduces drive current demand |
| Pin 2 | Drain | Main high-side current path; electrically connected to metal tab for thermal and electrical continuity |
| Pin 3 | Source | Reference node for gate drive and current sensing; tied to ground or low-side return path |
| Pin 4 | Drain (Tab) | Thermal and electrical extension of Pin 2; must be soldered to ≥6 cm² copper area for RthJA ≤70 K/W |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | VGS(th) down to 0.8 V enables direct interface with 3.3 V microcontrollers without external level shifters |
| Low RDS(on) | 0.8 Ω max at 10 V ensures <0.8 W conduction loss at 1 A, reducing thermal design burden |
| Integrated body diode | Rated for 1 A continuous forward current and 0.95 V typical VSD, eliminating need for external freewheeling diode in DC-DC and motor drives |
| High VDS rating | 100 V breakdown supports 48 V nominal systems with 110 % surge margin per IEC 61000-4-5 |
| Robust thermal performance | RthJS ≤10 K/W to solder point allows effective heat transfer through SOT-223 tab to PCB |
Applications
| Industrial Power Switch | LED Load Driver |
|---|---|
Use Scenario: Remote-controlled 24 V DC power distribution in PLC I/O modules and sensor hubs. IC Role / Device Role / Timing Role: Low-side switch controlling solenoid, relay, or indicator LED banks. Use Value: Logic-level gate enables direct MCU GPIO drive; 1 A rating supports up to 24 W load per channel with minimal board area. | Use Scenario: Constant-current dimming of high-brightness LED strings in signage and machine vision lighting. IC Role / Device Role / Timing Role: PWM-controlled current sink in linear LED driver stage. Use Value: Low RDS(on) minimizes power loss during PWM on-time; integrated diode handles reverse recovery in buck-derived topologies. |
| H-Bridge Half-Bridge | DC-DC Synchronous Rectifier |
Use Scenario: Bidirectional motor control in compact actuators and valve drivers. IC Role / Device Role / Timing Role: Low-side switch in complementary pair with P-channel or high-side driver. Use Value: Matched VGS(th) and fast tr/tf (<25 ns/<85 ns) reduce shoot-through risk in 10–100 kHz commutation. | Use Scenario: Secondary-side synchronous rectification in isolated 5–24 V output flyback converters. IC Role / Device Role / Timing Role: Active rectifier replacing Schottky diode to improve efficiency. Use Value: 100 V VDS withstands reflected voltage spikes; low Coss (60–90 pF) reduces switching losses at 100–500 kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel logic-level MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRLML6344TRPBF | VDS = 20 V, RDS(on) = 0.045 Ω @ 4.5 V, SOT-23 package | Limited to ≤12 V systems; unsuitable for 24/48 V bus protection | Select only for low-voltage, high-current portable electronics where footprint is critical |
| DMN3025LSD-13 | VDS = 30 V, RDS(on) = 0.025 Ω @ 4.5 V, SO-8 package | Higher current (3.5 A), but lower voltage rating excludes 48 V industrial use | Prefer for higher-current 12–24 V applications requiring dual-channel layout or better thermal mass |
Compared with IRLML6344TRPBF and DMN3025LSD-13, BSP296L6433HTMA1 uniquely balances 100 V capability, logic-level drive, and SOT-223 thermal performance-making it the only option among the three qualified for 48 V industrial power switching with single-layer PCB heatsinking.
Availability
BSP296L6433HTMA1 is available at Aetrix Electronics and suitable for industrial power switches, LED load drivers, H-bridge half-bridges, and DC-DC synchronous rectifiers requiring stable component supply across multi-year production cycles.
Supply support for BSP296L6433HTMA1 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 ICs, and industrial discrete devices with global manufacturing and qualification standards.
The BSP296 belongs to Infineon's SIPMOS small-signal transistor family, designed specifically for logic-compatible, medium-voltage switching in space- and thermally constrained industrial controls and power supplies.
FAQ
What is the maximum safe operating voltage for BSP296L6433HTMA1 in continuous DC applications?
The absolute maximum drain-source voltage is 100 V per datasheet ratings. For reliable long-term operation, design should limit steady-state VDS to ≤80 V to accommodate transients and ensure margin against V(BR)DSS degradation over temperature and lifetime. At Tj = 150 °C, V(BR)DSS remains ≥90 V per characterization curves.
Can BSP296L6433HTMA1 be driven directly by a 3.3 V microcontroller GPIO without a gate driver?
Yes. With VGS(th) as low as 0.8 V and guaranteed turn-on at VGS ≥ 2.0 V, the device achieves full enhancement at 3.3 V. RDS(on) drops to ≤0.8 Ω at VGS = 4.5 V, confirming robust conduction even with marginal logic levels.
Does BSP296L6433HTMA1 include an integrated body diode, and what are its ratings?
Yes. It features a monolithic body diode rated for 1 A continuous forward current (IS) and 4 A pulsed (ISM). Forward voltage is 0.95 V typical at IF = 2 A and Tj = 25 °C, rising to ≤1.3 V at 150 °C per datasheet curves.
What PCB layout practices are required to achieve the specified RthJA ≤70 K/W?
To meet RthJA ≤70 K/W, the SOT-223 drain tab (Pin 4) must be soldered to a minimum 6 cm² copper area on the top layer, thermally connected via ≥4 thermal vias (0.3 mm diameter) to inner or bottom-layer ground planes. No silkscreen or solder mask over the tab area is permitted.
BSP296L6433HTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- SIPMOS®
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 1.1A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 700mOhm @ 1.1A, 10V
- Vgs(th) (Max) @ Id:
- 1.8V @ 400µA
- Gate Charge (Qg) (Max) @ Vgs:
- 17.2 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 364 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 1.79W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT223-4
BSP296L6433HTMA1 FAQ
1.How can I place an order for BSP296L6433HTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BSP296L6433HTMA1 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 BSP296L6433HTMA1 reliable?
The price and inventory of BSP296L6433HTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSP296L6433HTMA1 is usually 5 days.
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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 BSP296L6433HTMA1?
For technical support, including BSP296L6433HTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSP296L6433HTMA1 requirements.
6.How does Aetrix verify that BSP296L6433HTMA1 is sourced from the original manufacturer or authorized distributors?
All BSP296L6433HTMA1 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 BSP296L6433HTMA1 meets industry standards.
7.What is the process for return or replacement of BSP296L6433HTMA1?
All BSP296L6433HTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BSP296L6433HTMA1, 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 BSP296L6433HTMA1 part is unused and in its original packaging.
Return procedure for BSP296L6433HTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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