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Taiwan Semiconductor Corporation BAV21WS RRG
- Part No.:
- BAV21WS RRG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BAV21WS RRG.pdf
- Description:
- DIODE GP 250V 200MA SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:5,426
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Product details
Overview
BAV21WS RRG from Taiwan Semiconductor is a single-die, high-voltage SMD switching diode in SOD-323F package, rated for 250 V repetitive peak reverse voltage (VRRM), 200 mA average forward current (IF), and 1.25 V forward voltage at 200 mA - used in on-board DC/DC converters and lighting applications.
For engineers reviewing the BAV21WS RRG datasheet, BAV21WS RRG pinout, BAV21WS RRG application, or BAV21WS RRG equivalent, key selection factors include its 250 V VRRM, 50 ns reverse recovery time (trr), 5 pF junction capacitance (CJ), moisture sensitivity level 1 compliance, and halogen-free green compound construction.
Technical Context
The BAV21WS RRG is a silicon planar epitaxial switching diode optimized for fast transient response in high-frequency power conversion circuits. Its 50 ns trr and low 5 pF CJ support efficient operation in SMPS and DC/DC topologies up to several hundred kHz.
It operates across –65 °C to +150 °C junction temperature range with 2.5 A non-repetitive surge capability (t = 1 μs) and meets JESD201 Class 1A whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 250 V - supports input rectification in 24–48 V industrial DC bus systems with safety margin |
| IF | 200 mA continuous - suitable for low-to-medium power signal-level switching and clamp functions |
| trr | 50 ns - enables stable operation in 200–500 kHz switching converters without excessive switching loss |
| CJ | 5 pF at 0 V - minimizes capacitive loading on high-speed control nodes and gate drive paths |
| VF @ 200 mA | 1.25 V - contributes to <250 mW total power dissipation under full-rated DC conduction |
| Moisture Sensitivity | Level 1 per J-STD-020 - allows unlimited floor life and standard reflow without baking |
Pinout & Package
SOD-323F surface-mount plastic package with cathode-indicated marking (S7 code), matte tin-plated leads, UL 94V-0 molding compound, and JEDEC SC-90 / EIAJ ED-7500A-1 compliant outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry node | Connected to lower-potential side in clamping or freewheeling paths; requires thermal relief in PCB layout |
| Cathode | Forward current exit node / reverse-blocking terminal | Marked by band on package; ties to higher-potential rail in flyback snubbers or output rectifiers |
Key Features
| Feature | Design Value |
|---|---|
| High surge current capability | 2.5 A peak (1 μs pulse) - withstands inrush and fault transients in adapter primary-side snubbers |
| Low forward voltage | 1.25 V @ 200 mA - reduces conduction loss in space-constrained DC/DC feedback or bias winding rectifiers |
| Fast reverse recovery | 50 ns - limits reverse recovery charge (Qrr) to ~1.5 nC, minimizing EMI in high-dV/dt environments |
| Halogen-free green compound | Complies with IEC 61249-2-21 - satisfies RoHS and environmental compliance for export-grade lighting and industrial modules |
Applications
| SMPS Primary-Side Snubber | LED Driver Flyback Clamp |
|---|---|
Use Scenario: Absorbs leakage inductance energy during MOSFET turn-off in offline flyback converters. IC Role / Device Role / Timing Role: Fast-switching clamp diode placed across transformer primary and MOSFET drain. Use Value: 250 V VRRM and 50 ns trr prevent voltage overshoot beyond 400 V while maintaining efficiency. | Use Scenario: Provides path for stored inductor energy during LED driver IC off-time in buck-derived topologies. IC Role / Device Role / Timing Role: Freewheeling diode synchronized with controller's low-side switch. Use Value: 200 mA IF rating and 1.25 V VF ensure minimal dropout and thermal rise in compact 12 V input LED modules. |
| USB-C PD Adapter Rectifier | Industrial Sensor Signal Clamping |
Use Scenario: Rectifies auxiliary bias winding output in multi-output USB-C PD adapters. IC Role / Device Role / Timing Role: Secondary-side output rectifier delivering 5–20 V bias power to controller ICs. Use Value: SOD-323F footprint enables dense layout; 250 V rating accommodates reflected transients up to 200 V. | Use Scenario: Protects analog front-end inputs of PLC I/O modules from ±15 V ESD or cable discharge events. IC Role / Device Role / Timing Role: Bidirectional clamping diode (anode-to-rail, cathode-to-rail) limiting voltage excursions. Use Value: 0.1 µA max reverse leakage at 200 V ensures negligible offset error in precision 24-bit ADC signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV21W,115 (Nexperia) | VRRM = 250 V, trr = 50 ns, but SOD-123FL package (larger footprint, higher thermal mass) | Less suitable for ultra-dense layouts where SOD-323F area savings matter | Select when board-level thermal management prioritizes higher PD margin over footprint size |
| MMBD2102LT1G (ON Semiconductor) | VRRM = 200 V (lower), trr = 50 ns, same SOD-323 package, but not halogen-free certified | Not compliant with IEC 61249-2-21; unsuitable for green-certified lighting products | Choose only if halogen-free requirement is waived and 200 V VRRM suffices for system derating |
Compared with BAV21WS RRG, the Nexperia BAV21W,115 offers identical electrical specs but larger SOD-123FL packaging - trading board area for thermal robustness; ON Semiconductor's MMBD2102LT1G lacks halogen-free certification and has lower 200 V VRRM, limiting use in 24 V+ industrial transient environments.
Availability
BAV21WS RRG is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and on-board DC/DC converters requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for BAV21WS RRG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and consumer markets since 1979.
The BAV21WS RRG belongs to TSC's high-voltage switching diode product line, engineered specifically for reliability-critical, high-frequency power conversion in compact SMD form factors.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for BAV21WS RRG?
The BAV21WS RRG has a guaranteed VRRM of 250 V, verified per Taiwan Semiconductor's K2212 datasheet revision. This rating applies under standard test conditions (TA = 25 °C, specified pulse waveform), and the device maintains reliable blocking behavior up to this voltage in continuous AC or DC reverse-biased operation. Derating is recommended above 125 °C ambient.
Does BAV21WS RRG meet RoHS and halogen-free requirements?
Yes, BAV21WS RRG complies with RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21, confirmed by the "G" suffix in its ordering code. The SOD-323F package uses green molding compound with no brominated flame retardants, making it suitable for environmentally regulated lighting and industrial equipment.
What is the reverse recovery time (trr) of BAV21WS RRG and how is it tested?
The BAV21WS RRG has a maximum trr of 50 ns, measured under standardized conditions: IF = IR = 30 mA, RL = 100 Ω, and Irr = 3 mA. This value reflects the diode's ability to transition from forward conduction to reverse blocking, critical for minimizing switching losses in high-frequency DC/DC converters.
Is BAV21WS RRG suitable for use in automotive applications?
No - Taiwan Semiconductor explicitly states that the BAV21WS RRG is not designed for medical, life-saving, or life-sustaining applications, and does not qualify for AEC-Q101 stress testing. It is intended for industrial, computing, and consumer power conversion; automotive designs require AEC-Q101-qualified alternatives with validated PPAP documentation.
What does the "RRG" suffix mean in BAV21WS RRG?
The "RRG" suffix in BAV21WS RRG indicates SOD-323F packaging, 3,000-unit 7-inch tape-and-reel delivery, and halogen-free ("G") green compound per IEC 61249-2-21. It distinguishes this variant from R9 (10,000-unit 13-inch reel) and non-green RRG variants without the "G" designation.
BAV21WS RRG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 250 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 200 V
- Capacitance @ Vr, F:
- 5pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAV21WS RRG FAQ
1.How can I place an order for BAV21WS RRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV21WS RRG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BAV21WS RRG reliable?
The price and inventory of BAV21WS RRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV21WS RRG is usually 5 days.
3.What payment methods are accepted for BAV21WS RRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV21WS RRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV21WS RRG?
BAV21WS RRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV21WS RRG order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BAV21WS RRG?
For technical support, including BAV21WS RRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV21WS RRG requirements.
6.How does Aetrix verify that BAV21WS RRG is sourced from the original manufacturer or authorized distributors?
All BAV21WS RRG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BAV21WS RRG meets industry standards.
7.What is the process for return or replacement of BAV21WS RRG?
All BAV21WS RRG units undergo pre-shipment inspection (PSI). If there is an issue with BAV21WS RRG, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BAV21WS RRG part is unused and in its original packaging.
Return procedure for BAV21WS RRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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