AIS1200PSTR STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
Single-axis MEMS acceleration sensor with PSI5 point-to-point digital interface, AEC-Q100 qualified for automotive safety applications. Packaged in a 16-pin SOP measuring 9.93 mm × 3.94 mm × 1.48 mm for surface-mount assembly. In stock worldwide with fast worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- AIS1200PSTR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- AEC-Q100 automotive qualification ensures reliability across harsh temperature and vibration conditions required for airbag and chassis safety systems
- PSI5 point-to-point digital interface provides robust noise-immune communication over long cable runs without additional signal-conditioning circuitry
- Single-axis MEMS sensing architecture in a compact SOP-16 package (9.93 mm × 3.94 mm) simplifies PCB layout in space-constrained automotive modules
Applications
AIS1200PSTR is designed for automotive safety-critical applications including airbag crash sensing, electronic stability control, and vehicle dynamic measurement systems that require AEC-Q100 Grade 1 qualification. Its PSI5 digital output makes it directly compatible with automotive ECUs and sensor fusion modules, eliminating analogue signal paths and the associated EMC challenges in passenger and commercial vehicles.
Specifications
| YTEOL | 3 |
| Additional Feature | SEATED HGT CALCULATED |
| Body Breadth | 3.94mm |
| Body Height | 1.48mm |
| Body Length or Diameter | 9.93mm |
| Mounting Feature | SURFACE MOUNT |
| Output Type | DIGITAL OUTPUT |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.4 |
| Package Shape/Style | RECTANGULAR |
| Screening Level | AEC-Q100 |
| Sensors/Transducers Type | ACCELEROMETER |
| Supply Voltage-Max | 16V |
| Supply Voltage-Min | 5V |
| Surface Mount | YES |
| Technology | BCD |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does AEC-Q100 qualification mean for AIS1200PSTR in an airbag deployment circuit?
AEC-Q100 qualification means the AIS1200PSTR has passed standardised automotive semiconductor stress tests including temperature cycling from -40°C to +150°C, humidity bias, and electrostatic discharge per AEC-Q100 Grade 1. For an airbag system, this certification is a baseline procurement requirement, assuring that the accelerometer will not spuriously trigger or fail to trigger a deployment event over the vehicle's 15-year lifespan.
How does the PSI5 interface on AIS1200PSTR simplify wiring compared to an analogue ratiometric output sensor?
PSI5 is a 2-wire digital protocol that transmits sensor data at up to 125 kbps or 189 kbps, allowing a single twisted-pair cable to carry both 8 V power and digital acceleration data back to the ECU. In contrast, an analogue ratiometric sensor requires a separate reference voltage line and is susceptible to resistive losses in cables longer than 1 m. PSI5 eliminates these concerns while providing built-in CRC error detection for functional safety compliance.
What PCB footprint area does AIS1200PSTR occupy, and how does it compare to a MEMS sensor in a QFN package?
AIS1200PSTR in SOP-16 occupies a land pattern of approximately 9.93 mm × 3.94 mm (about 39 mm²). A comparable MEMS sensor in a 4 mm × 4 mm QFN-16 would occupy only 16 mm², roughly 60% less. Engineers should account for the larger SOP footprint in dense automotive PCB layouts but benefit from the package's easier hand-soldering and inspection during prototype builds and rework.
For an electronic stability control module, how does AIS1200PSTR's single-axis sensing architecture fit into a 3-axis measurement system?
A single-axis sensor like AIS1200PSTR measures acceleration along one defined axis with high precision and low cross-axis sensitivity. To cover all 3 spatial axes for ESC (X, Y, Z), engineers mount 3 AIS1200PSTR devices oriented orthogonally on the PCB, or pair it with a multi-axis MEMS sensor for the remaining 2 axes. This modular approach allows each sensing axis to be independently calibrated and replaced, improving fault isolation in safety-critical ISO 26262 ASIL-B or higher designs.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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