This article provides an in-depth analysis of the technical characteristics of STMicroelectronics’ LEOAC08PT-D radiation-hardened plastic-encapsulated logic chip. Mingjiada Electronics has long supplied and recycled this model, serving customers in the satellite, aerospace, and high-reliability industrial sectors.
Product Overview: A New Benchmark for Aerospace-Grade Plastic-Packaged Logic ICs
The LEOAC08PT-D is a radiation-hardened, reinforced, plastic-packaged four-channel dual-input AND gate introduced by STMicroelectronics, specifically designed for Low Earth Orbit (LEO) space applications. Building upon a traditional low-power CMOS logic architecture, this chip integrates ST’s more than 40 years of aerospace technology expertise with the automotive-grade AEC-Q100 standard, making it a highly cost-effective logic solution for the commercial aerospace and high-reliability industrial sectors.
In terms of packaging, the LEOAC08PT-D utilizes a TSSOP-20 thin, reduced-size package with gold wire bonding and nickel/palladium/gold (NiPdAu) plated leads, effectively suppressing whisker growth and ensuring long-term in-orbit reliability. Weighing only 80 mg, the chip meets the stringent requirements for lightweight components in spacecraft.
Key Technical Specifications and Radiation Resistance
The LEOAC08PT-D features the following key performance metrics:
Operating voltage range: 2 V to 6 V, with an absolute maximum rating of 7 V; compatible with mainstream logic levels
Propagation delay: Typical value of 8.5 ns; maximum of 9 ns at a 4.5 V supply voltage and 50 pF load
Quiescent current: Maximum 40 µA, suitable for low-power space platforms
Output drive capability: ±24 mA for high/low-level outputs
Operating temperature range: -40°C to +125°C, covering both internal and external spacecraft applications
In terms of radiation tolerance, the chip has passed a 50 krad(Si) total ionizing dose (TID) test and features a single-electron-level (SEL) immunity threshold as high as 62.5 MeV·cm²/mg, demonstrating robust latch-up resistance in the LEO orbital radiation environment.
Additionally, the LEOAC08PT-D complies with the ST-LEO specification, a quality assurance system specifically designed for plastic-encapsulated space-grade components, achieving a balance between cost control, supply capability, and reliability.
LEOAC08PT-D Typical Applications
This product is primarily intended for the following fields:
Low Earth Orbit (LEO) satellite platforms: onboard integrated electronic systems, attitude control logic, telemetry and telecommand signal processing
Launch vehicles and upper stages: critical logic functions such as timing control and status monitoring
High-reliability industrial and automotive electronics: applications in harsh environments requiring AEC-Q100 certification
Mingjiada Electronics Supply and Procurement Services
As a professional independent distributor of electronic components, Shenzhen Mingjiada Electronics Co., Ltd. maintains a long-term supply of genuine LEOAC08PT-D components in stock. We also offer high-value global buyback services for this model and various other aerospace-grade and industrial-grade components. The company specializes in the electronic component supply chain, covering a full range of products including integrated circuits, power management, logic devices, and communication chips.
Supply Advantages: Leveraging extensive in-stock inventory and a global procurement network, Mingjiada Electronics can provide both small-batch samples and bulk shipments of the LEOAC08PT-D, with 24-hour expedited shipping available. All products are sourced through authorized channels, ensuring genuine, original products and full quality traceability throughout the supply chain.
Purchasing Services: For customers’ project surplus, factory inventory, or obsolete materials, Mingjiada offers flexible, high-value buyback solutions to help customers liquidate inventory and alleviate cash flow pressure. Whether it’s brand-new, original tape-and-reel packages or unopened full reels, we provide rapid valuation and quotes with cash settlement.
Contact Us
For inquiries regarding LEOAC08PT-D spot prices, lead times, or inventory management, please contact Mingjiada Electronics:
Phone: 86-755-83294757 / 13410018555 (Mr. Chen)
Email: sales@hkmjd.com
Address: Rooms 1239-1241, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen, Guangdong Province
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