BTS442E2BKSA1 Infineon Integrated Circuit (Transistor Outline, Vertical) In Stock
Infineon BTS442E2BKSA1 is a single-channel smart high-side power switch rated for 21 A continuous load current and 4.5 V to 42 V supply range, delivering up to 167 W in a 5-pin + Tab vertical package. It integrates overcurrent, overvoltage, undervoltage, thermal, and transient protection for robust automotive and industrial load switching applications.
- Manufacturer
- Infineon
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- BTS442E2BKSA1 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 21 A continuous current rating with 70 A peak current limit for heavy inductive load switching
- 4.5 V to 42 V supply range covering 12 V and 24 V automotive and industrial systems
- Integrated multi-protection: overcurrent, overvoltage, undervoltage, transient, and thermal shutdown
- Single-channel high-side source output with 167 W power rating in a compact 5+Tab package
Applications
The Infineon BTS442E2BKSA1 is designed for automotive body electronics and industrial motor control applications where high-side switching of 21 A loads from 12 V or 24 V rails is required. Its integrated protection suite against overcurrent (70 A peak limit), thermal overload, and transient spikes makes it ideal for controlling solenoid valves, relay coils, DC motors, and lighting loads in harsh automotive and industrial environments.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 1996-04-01 |
| YTEOL | 0 |
| Built-in Protections | TRANSIENT; OVER CURRENT; OVER VOLTAGE; THERMAL; UNDER VOLTAGE |
| Interface IC Type | BUFFER OR INVERTER BASED PERIPHERAL DRIVER |
| JESD-30 Code | R-PZFM-T5 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current Flow Direction | SOURCE |
| Output Peak Current Limit-Nom | 70A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Qualification Status | Not Qualified |
| Supply Voltage-Max | 42V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 12V |
| Surface Mount | NO |
| Technology | MOS |
| Terminal Finish | MATTE TIN |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | ZIG-ZAG |
| Turn-off Time | 130 µs |
| Turn-on Time | 350 µs |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What continuous and peak current ratings does the BTS442E2BKSA1 support for inductive load switching?
The BTS442E2BKSA1 supports a continuous load current of 21 A and a peak current limit of 70 A. The 70 A peak capacity protects the circuit during motor startup inrush or solenoid actuation transients, while the 21 A continuous rating handles sustained high-current loads such as automotive seat motors, HVAC blowers, or hydraulic valve solenoids without exceeding thermal limits at its 167 W dissipation capability.
How does the integrated protection circuitry in the BTS442E2BKSA1 protect both the IC and connected loads?
The BTS442E2BKSA1 integrates five protection mechanisms: overcurrent shutdown at 70 A, overvoltage clamp across the 4.5 V to 42 V operating range, undervoltage lockout preventing partial turn-on below supply threshold, transient spike suppression for load-dump events, and thermal shutdown engaging when junction temperature exceeds the rated limit. This comprehensive protection eliminates the need for external protection components in most automotive and industrial load-switch designs.
Which supply voltage range does the BTS442E2BKSA1 cover, and does it support 24 V truck and heavy-equipment systems?
The BTS442E2BKSA1 operates across a 4.5 V to 42 V supply range, which covers both 12 V automotive systems and 24 V truck, bus, and heavy industrial equipment power rails. The 42 V maximum rating also provides headroom for load-dump transients that can spike to 40 V on 24 V systems, making the BTS442E2BKSA1 a single-part solution across passenger car and commercial vehicle platforms.
When is the BTS442E2BKSA1 preferred over a discrete MOSFET plus gate driver combination for high-side switching?
The BTS442E2BKSA1 is preferred when system designers want to eliminate external components: a discrete solution requires a high-side gate driver, bootstrap capacitor, charge pump, and separate protection ICs to match the BTS442E2BKSA1's 21 A capability with integrated 70 A overcurrent, thermal, and transient protection. In automotive ECU designs with limited PCB area, the 5+Tab package of the BTS442E2BKSA1 reduces component count by 4 to 6 parts and simplifies EMC compliance for 12 V and 24 V switching circuits.
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