STBR1508-Y STMicroelectronics Diode (Other) In Stock
STMicroelectronics STBR1508-Y is an automotive-grade 800 V, 15 A single-phase bridge rectifier diode, built for reliable AC-to-DC conversion in harsh vehicle environments. AEC-Q101 qualified, supporting high-voltage rectification in on-board chargers and DC-DC converters with low forward voltage drop.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- STBR1508-Y Datasheet PDF
- Category
- Diode
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Automotive AEC-Q101 qualified bridge rectifier rated at 800 V peak reverse voltage and 15 A average forward current
- Low forward voltage drop optimizes power conversion efficiency in 12 V and 48 V automotive DC-DC power stages
- Compact -Y package enables high-density PCB layout in space-constrained on-board charger and SMPS designs
Applications
The STBR1508-Y is designed for automotive on-board chargers (OBC), DC-DC converters, and alternator rectification circuits where an 800 V breakdown voltage and 15 A current handling are required. It is also suitable for industrial SMPS and motor drive front-end rectifier stages where AEC-Q101-level component quality and high surge current capability improve system reliability.
Specifications
| Diode Type | RECTIFIER DIODE |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STBR1508-Y:
Frequently Asked Questions
What are the key voltage and current ratings of the STBR1508-Y bridge rectifier?
The STBR1508-Y is rated at 800 V peak reverse voltage (VRRM) and 15 A average forward current (IFAV), making it suitable for high-power automotive rectification stages. Its surge current capability exceeds 150 A for single half-cycle transients, protecting the circuit during start-up or fault conditions in 48 V mild-hybrid and 12 V conventional vehicle electrical systems.
Which automotive power conversion applications are best served by the STBR1508-Y?
The STBR1508-Y is ideal for automotive on-board chargers requiring 800 V AC mains rectification at up to 15 A, as well as 48 V belt-integrated starter-generator (BSG) rectifier bridges. Its AEC-Q101 qualification and -40°C to 150°C operating temperature range ensure long-term reliability in alternator diode packs and bidirectional DC-DC converter front-ends in hybrid electric vehicles.
How does the STBR1508-Y compare to standard industrial bridge rectifiers for automotive use?
Unlike standard industrial-grade bridge rectifiers, the STBR1508-Y carries AEC-Q101 automotive qualification with stricter lot-to-lot consistency and extended -40°C to 150°C junction temperature rating. Its 800 V / 15 A ratings match automotive requirements where standard 600 V industrial parts fail under load-dump transients, providing a 33% higher voltage margin for safe operation in 48 V automotive architectures.
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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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