ITS4142NHUMA1 - 1.4A Smart High-Side Switch SOT-223 | Infineon
MPN: ITS4142NHUMA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.62 | $16.20 |
| 100 | $1.28 | $128.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.88 | $880.00 |
Drop-in alternatives for ITS4142NHUMA1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ITS4141NHUMA1
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BSP75NHUMA1
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VNN1NV04P-E
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ITS4142NHUMA1 Maximum Ratings & Electrical Characteristics
| Manufacturer | Infineon Technologies |
| Product Type | Smart High-Side Power Switch |
| Topology | 1:1 N-Channel High-Side |
| Number of Outputs | 1 |
| Continuous Load Current | 1.4 A |
| Operating Supply Voltage | 5 V to 34 V (load-dump tolerant to 45 V) |
| Logic Input Voltage | Logic-level, 3.3 V and 5 V compatible |
| Overvoltage Protection | Yes, including load dump |
| Undervoltage Shutdown | Yes, with auto-restart and hysteresis |
| Short Circuit Protection | Yes, with current limitation |
| Overload Protection | Yes |
| Thermal Shutdown | Yes |
| Diagnostic Feedback | Yes, open-drain status output |
| Inductive Load Switching | Yes, with internal clamping |
| Operating Temperature | -40C to +125C (junction) |
| Package | PG-SOT223-4 (4-pin SOT-223) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
ITS4142NHUMA1 Pin Configuration
| Pin 1 | IN β Logic-level input (3.3V/5V compatible), drives gate of high-side FET |
| Pin 2 | GND β Logic ground / signal return |
| Pin 3 | Vbb β Supply voltage (5 V to 34 V), connected to load via drain of internal N-FET |
| Pin 4 | ST β Open-drain diagnostic status output |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ITS4142NHUMA1 is suitable for 6 applications: 24V Industrial PLC Digital Output, Automotive Body Control Module (BCM), Relay Replacement in HVAC Controls, Solenoid and Valve Driver, LED Lighting Driver (Industrial), Industrial Sensor Power Switch.
24V Industrial PLC Digital Output
The ITS4142NHUMA1 is well suited as a digital output driver for 24 V industrial PLC modules conforming to IEC 61131-2. Its 1.4 A continuous rating handles solenoid, valve, and indicator loads directly, while embedded short-circuit and overcurrent protection satisfy the IEC 61131-2 abnormal-operation test. The open-drain diagnostic pin reports wire-break and overload faults back to the PLC scan engine. With operating voltage from 5 V to 34 V and load-dump tolerance to 45 V, the part tolerates the harsh 24 V industrial bus transients without external protection.
Recommended
Automotive Body Control Module (BCM)
The ITS4142NHUMA1 fits automotive BCM channels driving 12 V lighting, mirror-fold, door-lock, and seat-adjustment actuators. The integrated load-dump protection meets ISO 7637 pulse 5a/5b requirements, and the short-circuit current limit protects against harness faults. Thermal shutdown recovers automatically when the fault clears. Use the open-drain status pin to flag fault conditions over CAN or LIN to the BCM host controller.
Recommended
Relay Replacement in HVAC Controls
For HVAC control boards replacing legacy electromechanical relays, the ITS4142NHUMA1 provides silent, bounce-free switching of 24 V damper motors, fan stages, and valve solenoids. Compared to a 24 V relay, it eliminates coil inrush, contact wear, and audible click noise, while the embedded diagnostics enable predictive maintenance alerts. The PG-SOT223-4 footprint allows drop-in PCB replacement of an existing relay footprint with minimal rework.
Recommended
Solenoid and Valve Driver
The ITS4142NHUMA1 is rated for switching inductive loads with internal active clamping, making it a direct driver for 12 V or 24 V hydraulic solenoids, pneumatic valves, and latching relays in industrial automation. With 1.4 A continuous rating it covers most small-to-medium valve actuators. Designers must verify that the load's stored inductive energy (1/2 L I^2) does not exceed the ITS4142N datasheet single-pulse avalanche rating to avoid long-term reliability degradation.
Recommended
LED Lighting Driver (Industrial)
For industrial 24 V LED indicator strips and architectural lighting drivers, the ITS4142NHUMA1 provides PWM-dimmable high-side current switching with embedded overcurrent and overtemperature protection. With a 3.3 V or 5 V logic-level input, it can be driven directly by a microcontroller PWM output at frequencies up to the datasheet limit. The diagnostic feedback indicates open-load and shorted-load conditions, useful for lamp-out detection in industrial fixture arrays.
Recommended
Industrial Sensor Power Switch
The ITS4142NHUMA1 can switch power to 24 V field sensors (proximity, photoelectric, level) and IO-Link sensor supplies, providing programmable hot-swap and short-circuit isolation per sensor channel. The undervoltage shutdown with auto-restart protects sensors from brown-out events during heavy motor loads on the same 24 V rail. Diagnostic feedback reports per-channel health back to the IO-Link master.
Recommended
Recommended Products Summary
Engineering reference data for ITS4142NHUMA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ITS4141NHUMA1 | ITS4140NHUMA1 | ITS4880R | BSP75NHUMA1 | VNN1NV04P-E |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | STMicroelectronics |
| Package | PG-SOT223-4 | PG-SOT223-4 | PG-SOT223-4 | PG-SOT223-4 | PG-SOT223-4 | SOT-223 (verify pinout) |
| Topology | High-Side N-Channel Smart Switch | High-Side N-Channel Smart Switch | High-Side N-Channel Smart Switch | High-Side Smart Switch | High-Side N-Channel Smart Switch | High-Side N-Channel OMNIFET |
| Continuous Load Current | 1.4 A | ~0.7 A | ~0.4 A | ~2 A | ~1 A | ~1 A |
| Operating Voltage Range | 5 V to 34 V | 5 V to 34 V | 5 V to 34 V | 5 V to 34 V | 5 V to 34 V | 5 V to 36 V |
| Diagnostic Feedback | Open-drain status | Open-drain status | Open-drain status | Open-drain status | Open-drain status | Status output (verify pin) |
| Load-Dump Protection | Yes (45 V) | Yes | Yes | Yes | Yes | Yes |
| Short-Circuit Protection | Yes (current limit) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Single-channel 1.4 A smart high-side switch in compact PG-SOT223-4 (vs ITS4141NHUMA1)
- Integrated load-dump protection up to 45 V (vs Discrete N-MOSFET + fuses + TVS approach)
- Open-drain diagnostic feedback for fault reporting (vs VNN1NV04P-E (STMicroelectronics))
Design Notes
Estimated: with the PG-SOT223-4 thermal pad soldered to ~1 square inch of copper, theta_JA is typically 60-80 C/W. At 1.4 A continuous load and RDS(on) on the order of 100-200 mOhm, junction temperature rise above ambient is in the 15-30 C range - well within the 125 C limit. For continuous operation at maximum load in enclosed industrial cabinets, increase copper area to 2-3 square inches and provide airflow to maintain margin.
Use a large copper pour under the SOT-223 tab (pin 3 / thermal pad) to maximize heat dissipation. Place input RC filter on the logic IN pin within 5 mm of the IC to reject high-frequency noise from industrial motor inverters. Provide a 100 nF ceramic bypass capacitor directly across Vbb to GND, and route the diagnostic pin away from switching power traces to avoid false triggering.
Do not connect the load between Vbb and the IC drain (pin 3) in reverse - this is a high-side switch and the load must return to GND, not to Vbb. Exceeding the inductive avalanche rating (E_AS) by switching highly inductive loads without external clamping causes long-term degradation even if the device survives each event. Always size the load's stored energy (1/2 L I^2) against the datasheet E_AS rating.
Keep the high-current load trace (from pin 3 / tab) short and wide to minimize voltage drop during inrush events. Use a star-ground topology so that the ITS4142N ground pin sees the same ground as the host MCU ground, preventing logic-level misinterpretation. Place TVS diodes on Vbb for additional load-dump protection if the application exceeds ISO 7637 worst-case transients.
Compliance Information
RoHS compliant per Infineon product page. HUMA1 suffix designates industrial grade (not AEC-Q100); AEC-Q100 automotive grade variants exist in the PROFET family but require a different order code. Halogen-free status not stated in the verified web data.
