
CNCHIPDEPOT Original Part
BAS21
BAS21 is a switching diode packaged in SOT-23, suitable for general switching applications with compact design and reliable performance.
PackageSOT-23-3 (TO-236AB)
Reverse Voltage (VR)200V
Forward Current (IF)200mA
Reverse Recovery Time (TRR)50ns
TypeFast Switching Diode
Forward Voltage (VF)1.25V @ 200mA
Product Overview
BAS21 is a switching diode packaged in SOT-23, suitable for general switching applications with compact design and reliable performance.
Specifications
Key electrical, package, and sourcing parameters for quick engineering review.
| Part Number | BAS21 |
| Brand | CNCHIPDEPOT |
| Package | SOT-23 |
| Category | Discrete Semiconductor Products - Switching Diodes |
| Type | Fast Switching Diode |
| Configuration | Single Diode |
| Package / Case | TO-236-3, SC-59, SOT-23-3 |
| Supplier Device Package | TO-236AB |
| Mounting Type | Surface Mount |
| Grade | Automotive |
| Qualification | AEC-Q101 |
| Voltage - DC Reverse (VR) | 200V |
| Current - Average Rectified (IO) | 200mA |
| Forward Voltage (VF) | 1.25V @ 200mA |
| Reverse Leakage Current (IR) | 100nA @ 200V |
| Reverse Recovery Time (TRR) | 50ns |
| Junction Capacitance | 5pF @ 0V, 1MHz |
| Technology | Standard Switching Diode |
| Operating Temperature | Up to 150°C |
| Packaging | Tape & Reel (3K/Reel), Cut Tape, Digi-Reel |
| Part Status | Active |
| Product Type | switching diode |
Cross Reference & Replacement Information
The following part numbers are commonly reviewed for replacement or compatibility matching. Always verify datasheet, package, pinout, and operating conditions before bulk purchase.
| Target Brand | Target MPN | Replace Type | Notes |
|---|---|---|---|
| NXP Semiconductors | BAS21 | Direct Replacement | Same MPN, SOT-23 package, switching diode. |
| ON Semiconductor | BAS21 | Cross Reference | Equivalent electrical characteristics, SOT-23 package. |
| Diodes Incorporated | BAS21 | Compatible Alternative | Verify voltage and current ratings in datasheet. |
Datasheet
Download the datasheet or contact us for additional technical information.
PDF
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Typical Applications
- High-voltage signal switching
- Digital logic circuits
- Pulse switching circuits
- Signal processing equipment
- Communication interfaces
- Low-power control circuits
- Automotive electronic systems
- Consumer electronics
- Industrial electronic systems
- General-purpose switching applications
Ordering & RFQ Information
- MOQ: Contact sales
- Lead Time: 3–7 working days for stock items
- Packaging: Reel / Tube / Tray depending on package
- Sample Availability: Available on request
- Mass Production Status: 50K+ pcs Stock / Mass Production
FAQ
Can this part replace my current model?
It may be suitable depending on your circuit requirements. Please verify datasheet, package, pinout, and test samples before bulk orders.
Can I request samples?
Yes. Please submit your RFQ with target quantity and application details.
Need this part or a compatible replacement?
Send us your target part number, BOM list, quantity, and technical requirements. CNCHIPDEPOT can help review replacement options and provide RFQ support.
Submit RFQElectronic Component Manufacturing & Quality Control
As a China electronic component factory , China Chip Depot supports component sourcing, production, testing and quality inspection for global B2B buyers. We also provide Cross Reference Alternative Parts matching services to help engineers and procurement teams identify suitable component alternatives.
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Component Testing Equipment
Electrical testing and verification equipment used to support performance checks and product consistency.
Quality Inspection Lab
Quality inspection processes help verify component condition, specifications and production consistency before shipment.
SMT Assembly Workshop
SMT production and assembly capabilities supporting electronic component and PCB-related manufacturing requirements.
Semiconductor Production
Controlled production environments supporting semiconductor and electronic component manufacturing processes.
Component Testing Equipment
Electrical testing and verification equipment used to support performance checks and product consistency.
Quality Inspection Lab
Quality inspection processes help verify component condition, specifications and production consistency before shipment.





