STPS1545CT STMicroelectronics Schottky Diode (Transistor Outline, Vertical) In Stock
STMicroelectronics STPS1545CT is a dual common-cathode Schottky rectifier diode rated at 7.5 A and 45 V with a maximum forward voltage of 0.84 V in TO-220AB package. Suitable as a fast-recovery freewheeling diode in switching power supplies. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- STPS1545CT Datasheet PDF
- Category
- Schottky Diode
- Price
- From $0.2400(MOQ 1)
- Temp Range
- ?°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STPS1545CT?
- Dual common-cathode Schottky diode configuration with 7.5 A maximum current and 45 V reverse blocking voltage in one TO-220AB package
- Low maximum forward voltage of 0.84 V minimizes conduction losses in switching power supply output rectifier and freewheeling diode stages
- Fast-recovery silicon Schottky construction enables efficient operation in high-frequency DC-DC converters, eliminating reverse-recovery loss
What is STPS1545CT used for?
The STPS1545CT is used as an output rectifier or freewheeling diode in switching power supplies, DC-DC buck and boost converters, and battery charger circuits operating at up to 45 V. The common-cathode dual configuration allows it to implement a center-tap full-wave rectifier or dual-diode ORing circuit with only three external connections on the TO-220AB package. Its low 0.84 V forward voltage reduces heat dissipation and improves efficiency in high-current 5 V and 12 V supply rails.
What are the specifications of STPS1545CT?
| Factory Lead Time | 15Weeks |
| YTEOL | 5.22 |
| Additional Feature | FREE WHEELING DIODE |
| Application | FAST RECOVERY POWER |
| Configuration | COMMON CATHODE, 2 ELEMENTS |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 0.84V |
| JEDEC-95 Code | TO-220AB |
| JESD-30 Code | R-PSFM-T3 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 150A |
| Number of Elements | 2 |
| Number of Phases | 1 |
| Output Current-Max | 7.5A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Rep Pk Reverse Voltage-Max | 45V |
| Reverse Current-Max | 100 µA |
| Reverse Test Voltage | 45V |
| Surface Mount | NO |
| Technology | SCHOTTKY |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| ## STPS1545CT Alternates Showing results | Image |
| 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 | Mainland China |
Where can I find the STPS1545CT datasheet?
STPS1545CT Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STPS1545CT?
Compatible alternatives and drop-in replacements for STPS1545CT:
Vishay Intertechnologies Rectifier Diode, Schottky, 1 Phase, 2 Element, 7.5A, 45V V(RRM), Silicon, TO-220AB
suggested
suggested
suggested
suggested
suggested
Rectifier Diode, Schottky, 1 Phase, 2 Element, 7.5A, 45V V(RRM), Silicon, TO-263AB
Rectifier Diode, Schottky, 1 Phase, 2 Element, 7.5A, 45V V(RRM), Silicon
Frequently Asked Questions
What are the key electrical ratings of the STPS1545CT for a power supply output stage?
The STPS1545CT is rated for a maximum average forward current of 7.5 A and a repetitive peak reverse voltage of 45 V, with a maximum forward voltage drop of 0.84 V, making it well suited as an output rectifier or freewheeling diode in 5 V to 24 V switching power supplies.
What diode configuration does the STPS1545CT use and how does it simplify a center-tap rectifier design?
The STPS1545CT contains 2 Schottky diode elements in a common-cathode configuration sharing one cathode pin on the TO-220AB package; this allows designers to build a center-tap full-wave rectifier using only a single component, with each anode connected to one winding end of a center-tapped transformer.
How does the STPS1545CT perform as a freewheeling diode in a buck converter compared to a standard PN rectifier?
As a Schottky device, the STPS1545CT has no minority carrier storage and therefore near-zero reverse-recovery charge, which eliminates the switching loss spike that occurs with PN-junction freewheeling diodes at high frequencies; this reduces EMI and improves converter efficiency, particularly at switching frequencies above 100 kHz.
What package does the STPS1545CT use and what are its thermal advantages for a high-current application?
The STPS1545CT uses a TO-220AB through-hole package with an exposed metal tab that can be bolted to a heatsink; this allows the 7.5 A rated device to dissipate heat efficiently in a compact 3-pin footprint, keeping junction temperature within safe limits in continuous-conduction power conversion circuits.
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Why Buy from FindMyChip
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2000 | $1.20 |
| 10+ | $0.4060 | $4.06 |
| 25+ | $0.3700 | $9.25 |
| 50+ | $0.3040 | $15.20 |
| 100+ | $0.2950 | $29.50 |
| 1000+ | $0.2400 | $240.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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