BAV21W-E3-18 Vishay Diode (Small Outline Diode) In Stock
Vishay BAV21W-E3-18 is a high-voltage silicon rectifier diode in a compact SOD-123 2-pin package, rated up to 200 V reverse voltage with a maximum forward voltage of 1.25 V, optimized for signal rectification and switching in space-constrained PCB designs.
- Manufacturer
- Vishay
- Package
- Small Outline Diode
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- BAV21W-E3-18 Datasheet PDF
- Category
- Diode
- Temp Range
- -55.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- High reverse voltage rating up to 200 V for robust signal protection and rectification
- Low forward voltage drop of max 1.25 V enabling efficient power conversion
- Compact SOD-123 surface mount package for high-density PCB assembly
- Silicon rectifier construction delivering reliable performance across automotive and industrial temperature ranges
Applications
The BAV21W-E3-18 is suited for high-voltage signal rectification, freewheeling diode applications in switching power supplies, and reverse polarity protection circuits in industrial and consumer electronics. Its small SOD-123 footprint makes it ideal for compact PCB designs in telecommunications and automotive electronics where board space is at a premium. The RoHS-compliant lead-free construction supports modern green manufacturing requirements.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 11Weeks |
| YTEOL | 6.12 |
| Application | HIGH VOLTAGE |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 1.25V |
| JESD-30 Code | R-PDSO-G2 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 1A |
| Number of Elements | 1 |
| Number of Phases | 1 |
| Output Current-Max | 0.3A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Dissipation-Max | 0.41W |
| Rep Pk Reverse Voltage-Max | 250V |
| Reverse Current-Max | 15 µA |
| Reverse Recovery Time-Max | 0.05 µs |
| Reverse Test Voltage | 200V |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 10 |
| Package | Small Outline Diode |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.70 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum reverse voltage rating of the BAV21W-E3-18, and how does that compare to general-purpose signal diodes?
The BAV21W-E3-18 supports a maximum reverse voltage of 200 V, which is significantly higher than standard small-signal diodes like the 1N4148 rated at 100 V, making it a better fit for high-voltage rectification and protection circuits in power electronics designs.
Can the BAV21W-E3-18 be used as a freewheeling diode in a 150 V DC switching supply?
Yes, with a 200 V reverse voltage rating and a maximum forward voltage of 1.25 V, the BAV21W-E3-18 is well-suited as a freewheeling diode in 150 V DC switching supplies. Its silicon rectifier construction handles fast transient events, and the SOD-123 package enables easy integration into compact power converter layouts.
What package does BAV21W-E3-18 use and what does that mean for PCB footprint requirements?
The BAV21W-E3-18 uses the SOD-123 surface mount package, which has a body size of approximately 2.8 mm x 1.8 mm and a standard 2-pin footprint, allowing placement on fine-pitch PCBs and compatibility with automated SMT pick-and-place assembly at reflow temperatures up to 260°C.
Is BAV21W-E3-18 RoHS compliant, and what does the E3-18 suffix signify?
Yes, the BAV21W-E3-18 is RoHS compliant and lead-free as indicated by the JESD-609 code e3. The -18 suffix refers to the tape width specification for reel packaging, with 18 mm carrier tape supporting automated board assembly in high-volume production environments.
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