BAV21W-E3-08 Vishay Diode (Small Outline Diode) In Stock
The BAV21W-E3-08 is a high-voltage silicon rectifier diode from Vishay in a compact SOD-123 2-pin SMD package. It features a 250V repetitive peak reverse voltage and 1.25V maximum forward voltage, ideal for signal rectification, voltage clamping, and protection circuits in space-constrained designs.
- Manufacturer
- Vishay
- Package
- Small Outline Diode
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- BAV21W-E3-08 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
- 250V repetitive peak reverse voltage for high-voltage signal rectification
- 1.25V maximum forward voltage drop minimizing conduction losses
- SOD-123 2-pin SMD package for automated high-density assembly
- 1A non-repetitive peak forward current for transient surge handling
- RoHS-compliant Pb-free construction (JESD-609 e3)
Applications
The BAV21W-E3-08 is suited for high-voltage signal rectification, reverse-polarity protection, and voltage clamping in power supply input stages operating up to 250V. Its compact SOD-123 footprint makes it a preferred choice in industrial sensor interfaces, telecom line cards, and AC/DC conversion circuits where board space is constrained. Designers also use it in flyback snubber networks and ESD protection chains where a low-profile, high-voltage silicon diode is required.
Specifications
| Pbfree Code | Yes |
| YTEOL | 6 |
| 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) |
| 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 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum repetitive peak reverse voltage the BAV21W-E3-08 can withstand?
The BAV21W-E3-08 is rated for a 250V repetitive peak reverse voltage (VRRM), allowing it to safely block high-voltage AC or pulsed signals in rectification and clamping circuits. This rating applies to continuous repetitive operation; the device also handles brief transient surges with a 1A non-repetitive peak forward current, making it robust in switching power supply environments.
How does the SOD-123 package of the BAV21W-E3-08 compare to through-hole alternatives for high-voltage rectifier designs?
The SOD-123 package measures approximately 2.7 mm x 1.7 mm and is about 1.1 mm tall, occupying far less board area than a DO-35 or DO-41 through-hole diode that requires 3 to 5 mm lead spacing. This allows the BAV21W-E3-08 to be placed on the solder side of a PCB, enabling denser layouts and eliminating the need for drilled holes, which reduces manufacturing cost in high-volume SMD-only assembly lines.
For which high-voltage signal applications is the BAV21W-E3-08 a strong design choice?
The BAV21W-E3-08 excels in 250V-rated signal rectification on telecom line interfaces, mains-referenced power-supply auxiliary rails, and industrial 4–20 mA sensor inputs where unexpected reverse voltages can spike above 100V. Its 1.25V maximum forward drop is low enough to preserve signal integrity in precision rectifier circuits, while the silicon junction provides stable characteristics from -65°C to +150°C junction temperature.
How should the BAV21W-E3-08 be soldered on a PCB to ensure reliable joints and avoid thermal damage?
The BAV21W-E3-08 is compatible with standard SMT reflow soldering using Sn-Ag-Cu (SAC305) lead-free solder paste and a peak reflow temperature of 260°C for up to 10 seconds per JEDEC J-STD-020 guidelines. Its SOD-123 pads should be sized to IPC-7351 land pattern standards to ensure adequate solder fillet formation. Hand soldering is possible but not recommended for volume production; thermal exposure should remain below the 260°C peak to avoid junction damage.
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