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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation BAV20WS RRG

Name: BAV20WS RRG
Brand: Taiwan Semiconductor Corporation
SKU: BAV20WS RRG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BAV20WS RRG

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SC-90, SOD-323F

Datasheet:: BAV20WS RRG.pdf

Description:: DIODE GP 200V 200MA SOD323F

Quantity:: RFQ Add To RFQ list

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Inventory:6,000

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Product details

Overview

BAV20WS RRG from Taiwan Semiconductor is a high-voltage SMD switching diode in SOD-323F package, rated for 200 mA average forward current, 200 V repetitive peak reverse voltage (V_RRM), and 2.5 A non-repetitive surge current (I_FSM). It delivers 1.25 V forward voltage at 200 mA and operates up to +150 °C junction temperature-used in compact DC/DC converters and adapter power stages.

For engineers reviewing the BAV20WS RRG datasheet, BAV20WS RRG pinout, BAV20WS RRG application, or BAV20WS RRG equivalent, key selection factors include its 200 V V_RRM, 50 ns reverse recovery time, SOD-323F footprint compatibility, RoHS-compliant green compound, and J-STD-020 Level 1 moisture sensitivity rating.

Technical Context

The BAV20WS RRG is a single-die silicon planar epitaxial switching diode optimized for fast transient response in high-frequency power conversion. Its 50 ns reverse recovery time (t_rr) and low 5 pF junction capacitance (C_J) support efficient operation in SMPS circuits operating above 100 kHz.

Designed for automated SMT placement, it features matte tin-plated leads compliant with J-STD-002, UL 94V-0 molding compound, and cathode band polarity marking. The SOD-323F package enables board space savings while maintaining thermal performance up to 150 °C junction temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - maximum repetitive reverse blocking voltage in DC/DC converter flyback or freewheeling paths
I_F	200 mA - continuous forward current handling capacity under ambient conditions
I_FSM	2.5 A - short-duration surge current tolerance during power-up or fault transients
V_F @ 200 mA	1.25 V - forward conduction loss impacting efficiency in low-voltage, high-current switch-node paths
t_rr	50 ns - reverse recovery speed limiting switching frequency and reducing switching losses
C_J	5 pF - junction capacitance affecting high-frequency noise coupling and snubber design
T_J max	+150 °C - maximum junction temperature enabling reliable operation in thermally constrained adapters

Pinout & Package

SOD-323F surface-mount plastic package with cathode-indicated band; 2-terminal configuration; dimensions per EIAJ ED-7500A-1 / SC-90 standard; 0.70 mm nominal height; 1.70 mm × 1.25 mm body footprint.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to switching node or input rail in flyback/freewheeling configurations
Cathode	Forward current exit / reverse blocking terminal	Marked by band; tied to ground or output return in step-down topologies

Key Features

Feature	Design Value
Fast reverse recovery	50 ns t_rr enables >200 kHz switching without excessive turn-off losses
High surge capability	2.5 A I_FSM supports robustness against inrush and load-dump events
Low-profile SMT package	SOD-323F footprint (1.70 × 1.25 mm) saves PCB area in space-constrained adapters
Halogen-free construction	"G" suffix denotes green compound compliant with IEC 61249-2-21
Moisture-safe handling	J-STD-020 Level 1 rating eliminates bake requirements before reflow

Applications

SMPS Flyback Secondary Rectification	USB-C PD Adapter Output Stage
Use Scenario: High-frequency flyback converter delivering 5–20 V output in compact wall adapters. IC Role / Device Role / Timing Role: Freewheeling diode conducting during transformer reset phase; handles 200 mA average output current. Use Value: 200 V V_RRM safely blocks reflected primary voltage spikes; 50 ns t_rr minimizes switching loss at 150–300 kHz.	Use Scenario: Secondary-side synchronous rectification replacement in 45 W USB-C PD chargers. IC Role / Device Role / Timing Role: Discrete switching diode used where cost-sensitive designs avoid synchronous controllers. Use Value: 1.25 V V_F at 200 mA balances conduction loss vs. BOM cost; SOD-323F fits tight layout constraints.
On-Board DC/DC Buck Converter	LED Driver Constant-Current Path
Use Scenario: 12 V-to-3.3 V buck regulator powering microcontroller subsystems in industrial IoT nodes. IC Role / Device Role / Timing Role: Catch diode providing current path during high-side MOSFET off-time. Use Value: 5 pF C_J reduces high-frequency ringing; +150 °C T_J max ensures reliability in sealed enclosures.	Use Scenario: Constant-current LED string driver with PWM dimming in smart lighting modules. IC Role / Device Role / Timing Role: Reverse-blocking diode isolating LED string from control IC during PWM off-cycles. Use Value: 0.1 µA max reverse leakage at 150 V prevents unintended LED glow; RoHS-compliant green compound meets lighting safety standards.

SMPS Flyback Secondary Rectification

USB-C PD Adapter Output Stage

Use Scenario: High-frequency flyback converter delivering 5–20 V output in compact wall adapters.

IC Role / Device Role / Timing Role: Freewheeling diode conducting during transformer reset phase; handles 200 mA average output current.

Use Value: 200 V V_RRM safely blocks reflected primary voltage spikes; 50 ns t_rr minimizes switching loss at 150–300 kHz.

Use Scenario: Secondary-side synchronous rectification replacement in 45 W USB-C PD chargers.

IC Role / Device Role / Timing Role: Discrete switching diode used where cost-sensitive designs avoid synchronous controllers.

Use Value: 1.25 V V_F at 200 mA balances conduction loss vs. BOM cost; SOD-323F fits tight layout constraints.

On-Board DC/DC Buck Converter

LED Driver Constant-Current Path

Use Scenario: 12 V-to-3.3 V buck regulator powering microcontroller subsystems in industrial IoT nodes.

IC Role / Device Role / Timing Role: Catch diode providing current path during high-side MOSFET off-time.

Use Value: 5 pF C_J reduces high-frequency ringing; +150 °C T_J max ensures reliability in sealed enclosures.

Use Scenario: Constant-current LED string driver with PWM dimming in smart lighting modules.

IC Role / Device Role / Timing Role: Reverse-blocking diode isolating LED string from control IC during PWM off-cycles.

Use Value: 0.1 µA max reverse leakage at 150 V prevents unintended LED glow; RoHS-compliant green compound meets lighting safety standards.

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
BAV20W-7-F (Diodes Inc.)	V_RRM = 200 V, I_F = 200 mA, t_rr = 50 ns, SOD-123 package (larger footprint)	SOD-123 requires PCB pad revision; higher thermal mass but lower power density	Select when legacy layout uses SOD-123 or higher thermal margin is prioritized over size
MMBD2004-7-F (Diodes Inc.)	V_RRM = 200 V, I_F = 200 mA, t_rr = 4 ns (faster), SOD-323 package, but VF = 1.5 V @ 200 mA	Superior speed suits >500 kHz designs but higher conduction loss impacts efficiency below 100 mA loads	Select for ultra-high-frequency SMPS where switching loss dominates over conduction loss

Compared with BAV20WS RRG, BAV20W-7-F offers identical electrical ratings but larger SOD-123 packaging requiring layout change, while MMBD2004-7-F provides 4 ns t_rr at the cost of 0.25 V higher V_F-making BAV20WS RRG optimal for balanced 100–300 kHz adapter and DC/DC applications.

Availability

BAV20WS RRG is available at Aetrix Electronics and suitable for switching mode power supplies, USB-C PD adapters, and on-board DC/DC converters requiring stable component supply and halogen-free compliance.

Supply support for BAV20WS 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 global power management and signal conditioning markets since 1979.

The BAV19WS/BAV20WS/BAV21WS series targets cost-sensitive, high-volume power conversion applications-designed specifically for compact, high-efficiency AC/DC and DC/DC solutions in consumer and industrial adapters.

FAQ

What is the repetitive peak reverse voltage (V_RRM) rating for BAV20WS RRG?

The BAV20WS RRG has a repetitive peak reverse voltage (V_RRM) rating of 200 V, verified per Taiwan Semiconductor's K2212 datasheet. This rating defines the maximum DC or repetitive reverse voltage the diode can block continuously at rated junction temperature. It is critical for ensuring safe operation in flyback transformer secondary windings and buck converter catch paths where voltage spikes may reach near this level. BAV20WS RRG must not be operated beyond 200 V in sustained reverse bias conditions.

Does BAV20WS RRG have a halogen-free construction?

Yes, BAV20WS RRG features halogen-free construction confirmed by the "G" suffix in its ordering code, complying with IEC 61249-2-21. The green molding compound contains no brominated or chlorinated flame retardants, meeting environmental requirements for consumer electronics and lighting products. This specification is documented in the Ordering Information section of the Taiwan Semiconductor datasheet Version K2212.

What is the reverse recovery time (t_rr) of BAV20WS RRG and how is it measured?

The reverse recovery time (t_rr) of BAV20WS RRG is 50 ns, measured under conditions of I_F = I_R = 30 mA, R_L = 100 Ω, and I_rr = 3 mA, per the Electrical Specifications table in the K2212 datasheet. This parameter reflects the diode's speed transitioning from forward conduction to reverse blocking, directly influencing switching loss and EMI in high-frequency power converters operating between 100 kHz and 300 kHz.

Is BAV20WS RRG compatible with lead-free reflow soldering processes?

Yes, BAV20WS RRG is fully compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and its SOD-323F package is rated for peak reflow temperatures up to 260 °C. With J-STD-020 Level 1 moisture sensitivity, no pre-bake is required prior to assembly-enabling direct placement into standard IPC/JEDEC-compliant reflow profiles.

What marking code identifies BAV20WS RRG on the device body?

The BAV20WS RRG is marked with the code "S6" on its SOD-323F package body, as specified in the Absolute Maximum Ratings table of the Taiwan Semiconductor datasheet. This two-character laser marking distinguishes it from BAV19WS (S5) and BAV21WS (S7) within the same family. The cathode band is located adjacent to the marking, confirming terminal polarity for correct PCB orientation during automated placement.

BAV20WS 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):: 200 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 @ 150 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

BAV20WS RRG FAQ

1.How can I place an order for BAV20WS RRG through Aetrix?

Please submit a Request for Quotation (RFQ) for BAV20WS 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 BAV20WS RRG reliable?

The price and inventory of BAV20WS RRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV20WS RRG is usually 5 days.

3.What payment methods are accepted for BAV20WS RRG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV20WS RRG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BAV20WS RRG?

BAV20WS RRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BAV20WS 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 BAV20WS RRG?

For technical support, including BAV20WS RRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV20WS RRG requirements.

6.How does Aetrix verify that BAV20WS RRG is sourced from the original manufacturer or authorized distributors?

All BAV20WS 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 BAV20WS RRG meets industry standards.

7.What is the process for return or replacement of BAV20WS RRG?

All BAV20WS RRG units undergo pre-shipment inspection (PSI). If there is an issue with BAV20WS 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 BAV20WS RRG part is unused and in its original packaging.

Return procedure for BAV20WS RRG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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