STPS40A45CHYT STMicroelectronics Schottky Diode (Transistor Outline, Vertical) In Stock
STPS40A45CHYT is a 45 V, 2 x 20 A dual Schottky rectifier in a TO-254AA package, featuring low forward voltage of 0.82 V and common-cathode configuration. Available from STMicroelectronics with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- STPS40A45CHYT Datasheet PDF
- Category
- Schottky Diode
- Temp Range
- -65.0°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual common-cathode 2 x 20 A Schottky rectifier rated at 45 V reverse voltage
- Ultra-low forward voltage of 0.82 V max for reduced conduction losses
- TO-254AA (JEDEC S-MSFM-P3) aerospace-grade package with 200 A non-repetitive peak forward current rating
Applications
STPS40A45CHYT is suited for high-current power conversion and rectification in aerospace and industrial power supplies. Its dual 20 A / 45 V Schottky elements support full-wave and split-rail rectifier topologies. The low forward drop minimises thermal dissipation in DC-DC converters and freewheeling circuits operating up to 200 A peak.
Specifications
| Date Of Intro | 2020-03-20 |
| YTEOL | 6 |
| Application | GENERAL PURPOSE |
| Configuration | COMMON CATHODE, 2 ELEMENTS |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 0.82V |
| JEDEC-95 Code | TO-254AA |
| JESD-30 Code | S-MSFM-P3 |
| Non-rep Pk Forward Current-Max | 200A |
| Number of Elements | 2 |
| Number of Phases | 1 |
| Output Current-Max | 20A |
| Package Body Material | METAL |
| Package Shape | SQUARE |
| Package Style | FLANGE MOUNT |
| Reference Standard | ESA/SCC 5106/023 |
| Rep Pk Reverse Voltage-Max | 45V |
| Reverse Current-Max | 25 µA |
| Reverse Test Voltage | 45V |
| Surface Mount | NO |
| Technology | SCHOTTKY |
| Terminal Form | PIN/PEG |
| Terminal Position | SINGLE |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.80 |
| Country of Origin | France |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STPS40A45CHYT:
Rectifier Diode, Schottky, 1 Phase, 2 Element, 20A, 45V V(RRM), Silicon, TO-254AA
Rectifier Diode, Schottky, 1 Phase, 2 Element, 20A, 45V V(RRM), Silicon, TO-254AA
Frequently Asked Questions
What is the maximum reverse voltage and forward current rating of the STPS40A45CHYT?
The STPS40A45CHYT is rated for a 45 V reverse voltage and 20 A continuous forward current per element, giving a total of 40 A in a common-cathode dual configuration. It can handle a non-repetitive peak forward current of 200 A, making it robust for high-surge power applications.
How does the 0.82 V forward voltage of STPS40A45CHYT benefit switching power supply designs?
The maximum forward voltage of 0.82 V at rated current means conduction losses stay low even at 20 A per element, reducing heat dissipation compared to standard silicon rectifiers that typically drop 1.0 V or more. This is critical in 12 V or 24 V output supplies where a 0.2 V difference translates directly into measurable efficiency gains.
Which industrial and aerospace circuit topologies are best served by the common-cathode dual configuration of STPS40A45CHYT?
The common-cathode dual Schottky structure is ideal for full-wave center-tap rectifiers, dual-output split-rail converters, and freewheeling diode pairs in motor-drive bridges operating up to 45 V. In aerospace DC-DC converters requiring MIL-grade reliability, the TO-254AA package and 200 A surge rating provide the robustness demanded by those environments.
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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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