BAV21W-E3-18 Vishay Diode (Small Outline Diode) In Stock

Name: BAV21W-E3-18
Brand: Vishay
SKU: BAV21W-E3-18
Availability: InStock

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.

ACTIVEDiodeVerified Jun 2026

Package / Visual Reference

BAV21W-E3-18Small Outline Diode

Quick Facts

Manufacturer: Vishay
Package: Small Outline Diode
Pin Count: 2
Lifecycle: ACTIVE
Datasheet: BAV21W-E3-18 Datasheet PDF
Category: Diode
Price: From $0.0511(MOQ 5000)
Temp Range: -55.0°C to 150.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of BAV21W-E3-18?

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

What is BAV21W-E3-18 used for?

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.

What are the specifications of BAV21W-E3-18?

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

Where can I find the BAV21W-E3-18 datasheet?

BAV21W-E3-18 Datasheet Download

Official datasheet from Vishay

What are equivalent replacements for BAV21W-E3-18?

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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Reference Price (USD)

From $0.0511

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
5000+	$0.0810	$405.00
10000+	$0.0580	$580.00
40000+	$0.0563	$2250.40
50000+	$0.0561	$2805.00
70000+	$0.0535	$3745.00
100000+	$0.0511	$5110.00

pcs

Unit price: $0.0810 · Total: $405.00

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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