BSP88H6327XTSA1 - 240V N-Ch MOSFET 350mA SOT-223 | Infineon
MPN: BSP88H6327XTSA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.78 | $0.78 |
| 10 | $0.62 | $6.20 |
| 100 | $0.45 | $45.00 |
| 500 | $0.34 | $170.00 |
| 1,000 | $0.27 | $270.00 |
| 3,000 | $0.21 | $630.00 |
Drop-in alternatives for BSP88H6327XTSA1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
BSP89H6327XTSA1
✅ Drop-In📋 Reference alternative (not in catalog)
BSP297H6327XTSA1
✅ Drop-In📋 Reference alternative (not in catalog)
BSS205NH6327XTSA1
✅ Drop-In✓ In Stock
$0.12 / Unit
View Datasheet →BSD235CH6327XTSA1
✅ Drop-In✓ In Stock
$0.12 / Unit
View Datasheet →BSS169H6327XTSA1
✅ Drop-In✓ In Stock
$0.15 / Unit
View Datasheet →STN1NF20
✅ Drop-In📋 Reference alternative (not in catalog)
BSP88H6327XTSA1 Maximum Ratings & Electrical Characteristics
| Transistor Type | N-Channel MOSFET |
| Drain-Source Voltage (VDS) | 240 V |
| Continuous Drain Current (ID) | 350 mA at Ta=25 C |
| Power Dissipation (PD) | 1.8 W at Ta=25 C |
| Package | PG-SOT223-4 (SOT-223-3) |
| Mounting Type | Surface Mount |
| On-State Resistance (RDS(on)) | 6 ohm typical at VGS=10 V |
| Configuration | Single |
| Operating Temperature | -55 C to +150 C |
| Technology | SIPMOS (planar enhancement mode) |
| Automotive Qualification | AEC-Q101 qualified |
| Lead Plating | Pb-free |
| RoHS Compliance | Compliant |
| Drain Tab Connection | SOT-223 tab is drain |
BSP88H6327XTSA1 Pin Configuration
| Pin 1 | DRAIN — Drain (also connected to tab) |
| Pin 2 | DRAIN — Drain (also connected to tab) |
| Pin 3 | GATE — Gate control input |
| Pin 4 | SOURCE — Source (return path) |
Safe Operating Area (estimated from datasheet limits)
Typical Applications
BSP88H6327XTSA1 is suitable for 6 applications: Automotive Relay Replacement, Low-Side Switch for Indicator Lamps, Logic-Level Level Shifter, Industrial 24 V Solenoid Driver, Battery-Powered Switching Module, Generic Line-Side Switch in 24 V Automation.
Automotive Relay Replacement
The BSP88H6327XTSA1 is well suited to replacing 12 V automotive relays for low-current loads such as indicator lamps and small solenoids. Its 240 V VDS rating comfortably tolerates the 14 V alternator load-dump transients seen on 12 V automotive buses, and its logic-level gate threshold allows direct drive from a 3.3 V or 5 V body-control microcontroller without a driver stage. Compared with a bipolar Darlington, the MOSFET draws essentially zero gate current in steady state, reducing quiescent battery draw. AEC-Q101 qualification confirms the part is validated for the underhood thermal environment and is in line with automotive PPAP expectations.
Recommended
Low-Side Switch for Indicator Lamps
For dashboard indicator lamps drawing 100 mA to 250 mA, the BSP88H6327XTSA1 serves as a compact low-side switch controlled directly from an automotive MCU GPIO. Its 6 ohm typical RDS(on) at VGS=10 V produces only 90 mW of conduction loss at 150 mA, leaving thermal margin within the 1.8 W SOT-223 budget. Adding a 100 ohm gate series resistor suppresses ringing on long wiring harnesses and protects the MCU pin from capacitive inrush during turn-on. The AEC-Q101 qualification supports deployment across passenger compartment and exterior lighting systems.
Recommended
Logic-Level Level Shifter
The BSP88H6327XTSA1 is widely used as a simple unidirectional level shifter from 3.3 V or 5 V logic to 12 V or 24 V loads. The MCU drives the gate through a 100 ohm resistor, while the drain pulls the high-side load to ground when activated. Because the gate threshold is well below 5 V, no charge pump or gate driver is required, simplifying the BOM. The 240 V VDS rating provides margin for the inductive kick of relay coils and small solenoids, and the integrated body diode clamps back-EMF when the load is released.
Recommended
Industrial 24 V Solenoid Driver
In industrial 24 V control cabinets, the BSP88H6327XTSA1 switches small solenoids and pneumatic valves whose current stays below 350 mA. Its 240 V VDS rating comfortably tolerates 24 V rails plus inductive transients, while the SOT-223 package allows dense PCB layouts in multi-channel I/O cards. Designers should add a flyback diode across inductive loads and verify that PCB copper on the drain tab reaches at least 6 cm squared to maintain the 1.8 W thermal budget. AEC-Q101 qualification gives extra assurance for factory-floor temperature swings.
Recommended
Battery-Powered Switching Module
Because the BSP88H6327XTSA1 draws essentially no gate current in steady state, it is well matched to battery-powered switching modules where quiescent draw directly impacts runtime. The device replaces electromechanical relays in portable test equipment, handheld scanners, and IoT edge nodes, eliminating coil current and contact bounce. With VDS rated to 240 V, the same device also tolerates the inductive kickback from small DC motors used in portable fans and pumps, simplifying the protection network.
Recommended
Generic Line-Side Switch in 24 V Automation
The BSP88H6327XTSA1 is deployed as a generic line-side switch in 24 V industrial automation, where it energizes optocouplers, small fans, and alarm buzzers. Its SOT-223 footprint occupies roughly the same board area as a DPAK but at a lower profile, supporting slim DIN-rail module designs. The 240 V VDS rating covers 24 V rails with margin, while the AEC-Q101 automotive pedigree gives PLC designers confidence in long-term reliability under continuous thermal cycling.
Recommended
Recommended Products Summary
Engineering reference data for BSP88H6327XTSA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BSP89H6327XTSA1 | BSP297H6327XTSA1 | BSS205NH6327XTSA1 | BSD235CH6327XTSA1 | STN1NF20 |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | STMicroelectronics |
| Package | PG-SOT223-4 (SOT-223-3) | PG-SOT223-4 - same | PG-SOT223-4 - same | PG-SOT223-4 - same | PG-SOT223-4 - same | SOT-223 - same footprint |
| Drain-Source Voltage (VDS) | 240 V | 250 V | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | 200 V |
| Continuous Drain Current (ID) | 350 mA | 350 mA (typ) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | 1 A (continuous) |
| On-State Resistance (RDS(on)) | 6 ohm @ VGS=10V | Similar class | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Power Dissipation | 1.8 W | 1.8 W | 1.8 W (typ) | 1.8 W (typ) | 1.8 W (typ) | [DATA_NEEDED] |
| Automotive Qualification | AEC-Q101 | AEC-Q101 | AEC-Q101 | AEC-Q101 | AEC-Q101 | [DATA_NEEDED] |
| Channel Configuration | Single N-channel | Single N-channel | Single N-channel | Single N-channel | Dual N+P complementary | Single N-channel |
| Unit Price (qty 1, USD) | 0.78 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Highest voltage rating in the BSP SOT-223 family (vs STN1NF20)
- AEC-Q101 qualified for automotive deployments (vs BSP297H6327XTSA1)
- Single-channel N-channel simplifies PCB layout (vs BSD235CH6327XTSA1)
Design Notes
Estimated: at 350 mA continuous load and RDS(on) of 6 ohm, the BSP88H6327XTSA1 dissipates roughly 0.74 W. The Infineon BSP88 datasheet reports a 1.8 W rating on a 40 mm x 40 mm FR4 test board with 6 cm squared of copper on the drain tab. Smaller copper pours must be derated; a 1 cm squared pad typically limits dissipation to about 0.5 W. Always mount the SOT-223 tab onto a copper pour connected to the drain to spread heat away from the silicon junction.
Place a 100 ohm gate series resistor as close as possible to the gate pin to dampen the LC resonance between gate capacitance and wiring inductance. Keep the gate trace short and route it away from the drain tab to minimize dv/dt-induced turn-on. Connect the SOT-223 tab to the drain copper pour using multiple thermal vias under the tab for best heat extraction, and use at least 2 oz copper on industrial designs to lower the junction-to-ambient thermal resistance.
Do not float the gate; even microamp leakage can partially enhance the channel and cause unwanted conduction in high-impedance circuits. Always tie the gate to source through a 10 kohm to 100 kohm pulldown resistor when driven from an open-drain source or a connector that may be disconnected. Also avoid exceeding VGS of +/-20 V; the gate oxide is thin and static-sensitive, so handle the part with standard ESD precautions during assembly.
Compliance Information
AEC-Q101 (automotive discrete) qualified per Infineon datasheet. AEC-Q100 is for ICs and not applicable to this MOSFET. Pb-free lead plating per Infineon datasheet and RoHS compliant.
