STPS40A150CHY1 STMicroelectronics Schottky Diode (Transistor Outline, Vertical) In Stock
STPS40A150CHY1 is a radiation-hardened dual Schottky rectifier rated 2×20 A at 150 V in a TO-254AA package, designed for space and high-reliability power conversion. Its low forward voltage drop reduces conduction losses, while the rugged hermetic package withstands harsh environments. Available in stock worldwide with expedited shipping for aerospace and defense applications.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- STPS40A150CHY1 Datasheet PDF
- Category
- Schottky Diode
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Radiation-hardened design for space and high-reliability power systems
- Dual 20 A / 150 V Schottky rectifier with low forward voltage drop
- TO-254AA hermetic package for harsh environment thermal and mechanical stability
- High switching speed enables efficient high-frequency rectification
- Common-cathode dual configuration simplifies circuit layout
Applications
STPS40A150CHY1 is primarily used in satellite power buses, spacecraft DC-DC converters, and defense avionics where radiation tolerance and high reliability are mandatory. Its dual-diode configuration and 150 V rating also suit high-voltage industrial rectification stages and redundant power supply designs.
Specifications
| Diode Type | RECTIFIER DIODE |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| Country of Origin | France |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What radiation tolerance does STPS40A150CHY1 offer for space power applications?
STPS40A150CHY1 is specifically designed as a radiation-hardened Schottky rectifier, capable of withstanding the total ionizing dose and single-event effects encountered in low-earth orbit and geostationary satellite power conversion systems operating at 150 V.
How does the dual 20 A configuration in STPS40A150CHY1 benefit power supply designers?
Each cathode carries up to 20 A, so a single TO-254AA package delivers 40 A total in a common-cathode arrangement, reducing component count, simplifying PCB routing, and lowering inductance in high-current bus rectification stages.
Is STPS40A150CHY1 suitable for full-bridge rectifier topologies in aerospace DC-DC converters?
Yes. The 150 V blocking voltage and 20 A per diode rating allow STPS40A150CHY1 to handle the peak reverse voltages seen in full-bridge and boost converter outputs up to several kilowatts in space-qualified power modules.
What does the TO-254AA hermetic package contribute to long-term reliability compared to plastic packages?
The TO-254AA hermetic metal package eliminates moisture ingress and outgassing, which is critical for components exposed to vacuum and thermal cycling from -55 °C to +150 °C in satellite and military airborne applications.
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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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