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

Taiwan Semiconductor Corporation RS2G

Name: RS2G
Brand: Taiwan Semiconductor Corporation
SKU: RS2G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: RS2G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: RS2G.pdf

Description:: DIODE GEN PURP 400V 2A DO214AA

Quantity:: RFQ Add To RFQ list

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Inventory:6,000

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Product details

Overview

RS2G from Taiwan Semiconductor is a 2 A, 400 V fast recovery surface-mount rectifier in DO-214AA (SMB) package, featuring 250 ns reverse recovery time, 1.3 V max forward voltage at 2 A, and 5 µA max reverse leakage at 25°C. It serves as a primary-side output rectifier in offline AC/DC adapters and SMPS.

For engineers reviewing the RS2G datasheet, RS2G pinout, RS2G application, or RS2G equivalent, key selection criteria include repetitive peak reverse voltage (400 V), thermal resistance (R_θJA = 55 °C/W), junction temperature range (–55 to +175 °C), and JEDEC-compliant DO-214AA mechanical outline.

Technical Context

The RS2G operates as a single-die, glass-passivated silicon junction rectifier optimized for high-frequency switching. Its fast recovery (250 ns) and low forward voltage (≤1.3 V) reduce conduction and switching losses in 50–500 kHz power converters.

Thermally, it supports continuous operation up to 175 °C junction temperature with R_θJL = 18 °C/W and R_θJA = 55 °C/W under standard PCB mounting. The cathode band clearly indicates polarity per JEDEC DO-214AA specification.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - maximum non-repetitive reverse voltage the device blocks without breakdown
I_F	2 A - continuous average forward current rating at 75 °C lead temperature
t_rr	250 ns - reverse recovery time under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A test conditions
V_F	≤1.3 V - maximum forward voltage drop at 2 A and 25 °C, directly impacting conduction loss
I_R	≤5 µA - maximum reverse leakage at rated V_R and 25 °C, critical for standby power efficiency
R_θJA	55 °C/W - junction-to-ambient thermal resistance on standard FR-4 PCB, defining heatsinking needs

Pinout & Package

DO-214AA (SMB) surface-mount package with molded plastic body, matte tin-plated leads, and cathode-indicating band. Complies with UL 94V-0 and JESD201 Class 2 whisker requirements.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side (e.g., transformer secondary center-tap or switch node)
Cathode	Forward current exit point	Connected to output rail; marked by visible band; defines unidirectional conduction path

Key Features

Feature	Design Value
Fast recovery time (250 ns)	Reduces switching losses and EMI in high-frequency SMPS designs operating above 100 kHz
Glass passivated junction	Ensures long-term reliability and stable electrical parameters under humidity and thermal cycling
Moisture sensitivity level 1	Enables direct placement without baking, supporting high-yield automated SMT assembly
RoHS and halogen-free compliance	Meets global environmental regulations for consumer, industrial, and lighting end equipment

Applications

AC/DC Adapters	LED Drivers
Use Scenario: Secondary-side rectification in compact wall-plug adapters delivering 5–24 V DC at up to 48 W. IC Role / Device Role / Timing Role: Fast recovery rectifier converting high-frequency transformer output to regulated DC bus. Use Value: Low V_F (≤1.3 V) and fast t_rr (250 ns) minimize power loss and improve adapter efficiency beyond 85% at full load.	Use Scenario: Output rectification in constant-current LED drivers for commercial downlights and street lighting. IC Role / Device Role / Timing Role: High-reliability discrete rectifier handling 2 A continuous output with surge tolerance up to 50 A. Use Value: 175 °C max junction temperature and robust glass passivation ensure stable operation in thermally constrained LED housings.
Industrial SMPS	DC-DC Converter Stages
Use Scenario: Primary or secondary rectification in 200–500 W industrial power supplies with wide ambient temperature range. IC Role / Device Role / Timing Role: Surface-mount fast recovery diode replacing through-hole alternatives to enable higher power density. Use Value: DO-214AA footprint and R_θJA = 55 °C/W allow thermal management on standard 2 oz copper without additional heatsinks.	Use Scenario: Isolated output rectification in telecom DC-DC modules requiring low-profile, high-efficiency components. IC Role / Device Role / Timing Role: Single-die rectifier placed on secondary side of flyback or forward converter. Use Value: 5 µA max I_R at 25 °C and 50 µA at 125 °C ensures minimal standby current in always-on systems.

AC/DC Adapters

LED Drivers

Use Scenario: Secondary-side rectification in compact wall-plug adapters delivering 5–24 V DC at up to 48 W.

IC Role / Device Role / Timing Role: Fast recovery rectifier converting high-frequency transformer output to regulated DC bus.

Use Value: Low V_F (≤1.3 V) and fast t_rr (250 ns) minimize power loss and improve adapter efficiency beyond 85% at full load.

Use Scenario: Output rectification in constant-current LED drivers for commercial downlights and street lighting.

IC Role / Device Role / Timing Role: High-reliability discrete rectifier handling 2 A continuous output with surge tolerance up to 50 A.

Use Value: 175 °C max junction temperature and robust glass passivation ensure stable operation in thermally constrained LED housings.

Industrial SMPS

DC-DC Converter Stages

Use Scenario: Primary or secondary rectification in 200–500 W industrial power supplies with wide ambient temperature range.

IC Role / Device Role / Timing Role: Surface-mount fast recovery diode replacing through-hole alternatives to enable higher power density.

Use Value: DO-214AA footprint and R_θJA = 55 °C/W allow thermal management on standard 2 oz copper without additional heatsinks.

Use Scenario: Isolated output rectification in telecom DC-DC modules requiring low-profile, high-efficiency components.

IC Role / Device Role / Timing Role: Single-die rectifier placed on secondary side of flyback or forward converter.

Use Value: 5 µA max I_R at 25 °C and 50 µA at 125 °C ensures minimal standby current in always-on systems.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fast recovery rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2R04	Same V_RRM (400 V), identical I_F (2 A), but t_rr = 35 ns (faster); higher cost; TO-220AC package	Requires through-hole layout and heatsink; unsuitable for space-constrained SMT designs	Choose STTH2R04 only when ultra-fast recovery (<50 ns) and higher surge capability justify larger footprint and cost.
SB240	V_RRM = 400 V, I_F = 2 A, but t_rr ≈ 500 ns (slower); DO-214AA package; VF ≈ 1.1 V	Higher switching loss in >100 kHz designs; acceptable in low-cost, low-frequency converters	Select SB240 where cost sensitivity outweighs efficiency targets and switching frequency remains below 60 kHz.

Compared with STTH2R04 and SB240, the RS2G delivers balanced performance: faster than SB240 for modern SMPS while maintaining DO-214AA compatibility and lower system cost than STTH2R04's through-hole implementation.

Availability

RS2G is available at Aetrix Electronics and suitable for AC/DC adapters, LED drivers, and industrial SMPS requiring stable component supply, JEDEC-compliant packaging, and RoHS/halogen-free compliance.

Supply support for RS2G 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 and protection markets since 1979.

The RS2G belongs to TSC's RS2x fast recovery rectifier family, engineered specifically for high-efficiency, high-reliability AC/DC and DC/DC conversion in consumer, industrial, and lighting applications.

FAQ

What is the maximum repetitive peak reverse voltage rating for RS2G?

The RS2G has a maximum repetitive peak reverse voltage (V_RRM) of 400 V, verified per Taiwan Semiconductor's L2304 datasheet. This rating defines the highest reverse voltage the RS2G can block repeatedly without avalanche breakdown under normal operating conditions. Exceeding this value risks irreversible junction damage.

What is the forward voltage drop of RS2G at its rated current?

The RS2G exhibits a maximum forward voltage (V_F) of 1.3 V at 2 A forward current and 25 °C junction temperature, as specified in the electrical characteristics table. This value directly determines conduction loss (P_cond = I_F × V_F) and impacts thermal design in high-current applications.

Does RS2G have a defined reverse recovery time, and what is its value?

Yes, the RS2G has a specified reverse recovery time (t_rr) of 250 ns under standard test conditions (I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A). This parameter is confirmed in the "ELECTRICAL SPECIFICATIONS" section of the RS2A–RS2M datasheet and is critical for minimizing switching loss in high-frequency converters.

What package type does RS2G use, and is it compatible with standard SMT processes?

The RS2G uses the DO-214AA (SMB) surface-mount package with matte tin-plated leads. It is fully compatible with standard reflow soldering per J-STD-020 Level 1 moisture sensitivity, requiring no pre-baking and supporting high-throughput automated placement.

What is the maximum junction temperature rating for RS2G?

The RS2G is rated for a maximum junction temperature (T_J) of +175 °C, with a minimum of –55 °C. This wide operating range enables reliable deployment in thermally demanding environments such as enclosed LED drivers and industrial power supplies without derating at elevated ambient temperatures.

RS2G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 400 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 2 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 150 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 400 V

Capacitance @ Vr, F:: 50pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AA (SMB)

Operating Temperature - Junction:: -55°C ~ 150°C

RS2G FAQ

1.How can I place an order for RS2G through Aetrix?

Please submit a Request for Quotation (RFQ) for RS2G 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 RS2G reliable?

The price and inventory of RS2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2G is usually 5 days.

3.What payment methods are accepted for RS2G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for RS2G?

RS2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your RS2G 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 RS2G?

For technical support, including RS2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2G requirements.

6.How does Aetrix verify that RS2G is sourced from the original manufacturer or authorized distributors?

All RS2G 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 RS2G meets industry standards.

7.What is the process for return or replacement of RS2G?

All RS2G units undergo pre-shipment inspection (PSI). If there is an issue with RS2G, 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 RS2G part is unused and in its original packaging.

Return procedure for RS2G:

1.Submit a request within 90 days.

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

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