BYV10-40 STMicroelectronics Diode (Diodes, Axial Diameter Horizontal Mounting) In Stock
STMicroelectronics BYV10-40 is a silicon rectifier diode rated for 40V reverse voltage with 0.55V maximum forward voltage drop in a DO-41 axial package. Handles 25A non-repetitive peak forward current for robust rectification.
- Manufacturer
- STMicroelectronics
- Package
- Diodes, Axial Diameter Horizontal Mounting
- Pin Count
- 2
- Lifecycle
- OBSOLETE
- Datasheet
- BYV10-40 Datasheet PDF
- Category
- Diode
- Temp Range
- -65.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 0.55V maximum forward voltage drop reduces conduction losses in low-voltage rectifier stages
- 25A non-repetitive peak forward current (IFSM) withstands inrush and surge events reliably
- DO-41 axial through-hole package simplifies hand-soldering and prototyping in power circuits
- Single isolated silicon rectifier configuration ideal for half-wave and full-wave bridge designs
- JEDEC DO-41 standard footprint ensures pin-compatible drop-in replacement across rectifier suppliers
Applications
The BYV10-40 is used in power supply rectifier circuits, freewheeling diode positions in motor drive outputs, and reverse-polarity protection stages in automotive and industrial equipment. Its low 0.55V forward voltage minimizes thermal dissipation in 5V and 12V rectification paths where efficiency is important. The DO-41 axial package enables straightforward use in through-hole power supply boards, battery charger circuits, and relay coil suppression applications.
Specifications
| YTEOL | 0 |
| Case Connection | ISOLATED |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 0.55V |
| JEDEC-95 Code | DO-41 |
| JESD-30 Code | O-LALF-W2 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 25A |
| Number of Elements | 1 |
| Number of Phases | 1 |
| Output Current-Max | 1A |
| Package Body Material | GLASS |
| Package Shape | ROUND |
| Package Style | LONG FORM |
| Qualification Status | Not Qualified |
| Rep Pk Reverse Voltage-Max | 40V |
| Surface Mount | NO |
| Technology | SCHOTTKY |
| Terminal Finish | MATTE TIN |
| Terminal Form | WIRE |
| Terminal Position | AXIAL |
| ## BYV10-40 Alternates Showing results | Image |
| Package | Diodes, Axial Diameter Horizontal Mounting |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.80 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for BYV10-40:
suggested
Rectifier Diode, Schottky, 1 Phase, 1 Element, 1A, 40V V(RRM), Silicon
Frequently Asked Questions
How does BYV10-40's 0.55V forward voltage compare to standard rectifier diodes in a 5V PSU design?
At 0.55V maximum forward drop, the BYV10-40 dissipates less heat than conventional silicon rectifiers rated at 0.7V to 1.0V under the same load current, improving efficiency in a 5V linear or switching power supply. For a 2A continuous load, this reduces conduction loss by up to 0.9W per diode compared to a 1.0V drop device, a meaningful efficiency gain in budget-constrained designs without Schottky diodes.
What surge capability does BYV10-40 provide for transformer-coupled rectifier bridges at turn-on?
The BYV10-40 is rated for 25A non-repetitive peak forward current (IFSM), which absorbs the large inrush current spike that occurs when a transformer-coupled rectifier charges an empty filter capacitor at power-on. For a typical 50Hz mains supply with a 2200 µF filter capacitor, inrush currents can briefly exceed 10A to 20A, well within the BYV10-40's 25A surge rating for reliable start-up protection.
When replacing a DO-41 rectifier diode on a legacy PCB, is BYV10-40 a suitable drop-in substitute?
Yes, the BYV10-40 conforms to the JEDEC DO-41 package standard, meaning its 2-wire axial lead dimensions and body size match any other DO-41 rectifier diode. As long as the circuit requires 40V reverse voltage rating or less and the continuous forward current stays within the BYV10-40's rated limits, it is a direct pin-compatible substitute for legacy DO-41 rectifiers in repair and replacement scenarios.
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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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