FERD15S50 STMicroelectronics Diode (Other) In Stock
STMicroelectronics FERD15S50 is a Field Effect Rectifier Diode rated at 50V and 15A in a surface-mount PowerFlat 5x6 package. It delivers ultra-low forward voltage drop for high-efficiency rectification. Available from stock worldwide with competitive pricing.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- FERD15S50 Datasheet PDF
- Category
- Diode
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Field Effect Rectifier Diode (FERD) technology providing ultra-low forward voltage drop versus conventional Schottky diodes at 15A
- 50V reverse voltage and 15A forward current rating in a compact surface-mount PowerFlat 5x6 package
- Surface-mount PowerFlat packaging enables excellent thermal dissipation and PCB assembly efficiency for high-current power designs
Applications
The FERD15S50 is designed for high-efficiency switch-mode power supplies and DC-DC converters operating up to 50V rails where minimizing conduction losses at 15A is critical. Its ultra-low forward drop makes it an ideal replacement for standard Schottky barrier rectifiers in synchronous rectification stages of server power supplies and industrial motor drives. It is also used in reverse polarity protection circuits and freewheeling diode applications where board space is limited and thermal performance is paramount.
Specifications
| Diode Type | RECTIFIER DIODE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for FERD15S50:
Frequently Asked Questions
How does the FERD15S50 forward voltage compare to a conventional Schottky diode at 15A load current?
FERD technology in the FERD15S50 achieves a significantly lower forward voltage drop than equivalent Schottky diodes at 15A, typically under 0.4V at 15A versus 0.6V to 0.7V for standard Schottky devices at the same 50V blocking voltage. This reduction directly lowers conduction losses in rectifier stages.
What is the voltage and current rating of FERD15S50, and which power supply topologies benefit most?
The FERD15S50 is rated at 50V reverse voltage and 15A continuous forward current. Boost converters, flyback supplies, and synchronous rectifiers operating in the 12V to 48V bus range benefit most, since the 15A current handling and low Vf reduce heat generation and improve efficiency by up to 1% to 2% in typical server or industrial SMPS designs.
For a compact industrial motor drive PCB, what thermal and size advantages does the FERD15S50 PowerFlat 5x6 package offer?
The surface-mount PowerFlat 5x6 package measures 5 mm x 6 mm with an exposed bottom pad, giving a very low thermal resistance to the PCB — typically under 10°C/W junction-to-board. This lets the FERD15S50 handle 15A continuously in a footprint far smaller than TO-220 through-hole alternatives, freeing board area in tight motor-drive power stages.
Can FERD15S50 replace a standard Schottky in a 48V freewheeling diode position, and what derating applies?
Yes, FERD15S50 can replace Schottky diodes in 48V freewheeling positions because its 50V reverse blocking rating meets the bus voltage with a 2V margin. Designers should derate to approximately 80% of continuous current (about 12A) in PCB ambient temperatures above 85°C to stay within the junction temperature limit and ensure long-term reliability.
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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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