Vishay GBU8
GBU8 variants from Vishay
GBU8 Overview
What changes between part numbers, and what to check before you lock the BOM — Rectifier Diodes.
Key Features
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 7 distinct suffix patternsExamples: D-E3/51, J-E3/45, J-E3/51, K-E3/45, K-E3/51 (+2 more). Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- Rectifier Diodes — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 7 GBU8 part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|
| GBU8D-E3/51 | Diode Rectifier Bridge Single 200V 8A 4-Pin Case GBU Bulk | Vishay | Active | Compliant | In Stock | |
| GBU8J-E3/45 | Diode Rectifier Bridge Single 600V 8A 4-Pin Case GBU Tube | Vishay | Active | Compliant | In Stock | |
| GBU8J-E3/51 | Diode Rectifier Bridge Single 600V 8A 4-Pin Case GBU Bulk | Vishay | Active | Compliant | In Stock | |
| GBU8K-E3/45 | 800V 8A Bridge Rectifier Diode, Through Hole, SIP | Vishay | Active | Compliant | In Stock | |
| GBU8K-E3/51 | Diode Rectifier Bridge Single 800V 8A 4-Pin Case GBU Bulk | Vishay | Active | Compliant | In Stock | |
| GBU8M-E3/45 | Diode Rectifier Bridge Single 1KV 8A 4-Pin Case GBU Tube | Vishay | Active | Compliant | In Stock | |
| GBU8M-E3/51 | Diode Rectifier Bridge Single 1KV 8A 4-Pin Case GBU | Vishay | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on GBU8 map to package, grade, and reel options.
How to Choose the Right GBU8 Rectifier Diodes
Match the footprint first
Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.
Electrical headroom
Compare voltage and current columns in the variant table. For GBU8, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "GBU8" — include the full suffix (e.g. D-E3/51, J-E3/45, J-E3/51). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for GBU8 product family
Identity
Variant Parameters
Source GBU8 with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 7 ordering variants from Vishay. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the GBU8 product family.