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Taiwan Semiconductor Corporation RS2G R5G
- Part No.:
- RS2G R5G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
RS2G R5G.pdf
- Description:
- DIODE GEN PURP 400V 2A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,918
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Product details
Overview
RS2G R5G 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 - used in AC/DC adapters and offline SMPS secondary-side rectification.
For engineers reviewing the RS2G R5G datasheet, RS2G R5G pinout, RS2G R5G application, or RS2G R5G equivalent, key selection criteria include repetitive peak reverse voltage (400 V), thermal resistance (55 °C/W junction-to-ambient), surge capability (50 A IFSM), and RoHS/halogen-free compliance for industrial power supply design.
Technical Context
The RS2G R5G operates as a single-die, unidirectional fast recovery rectifier with glass-passivated junction and cathode-band polarity marking. Its 250 ns trr and 50 pF junction capacitance support high-frequency switching up to several hundred kHz in flyback and forward converters.
Designed for surface-mount assembly on PCBs with JEDEC-compliant SMB pads, it sustains 175 °C maximum junction temperature and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity - enabling reflow compatibility without baking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - supports 230 VAC input-derived DC bus with ≥2× safety margin in universal-input SMPS |
| IF | 2 A continuous - delivers up to 24 W output at 12 V with typical conduction loss under 2.6 W |
| trr | 250 ns - minimizes switching loss and EMI in 65–130 kHz flyback topologies |
| VF (max) | 1.3 V @ 2 A, 25°C - enables <1.5 W conduction loss at full load, reducing heatsink requirements |
| RθJA | 55 °C/W - allows 1.5 W dissipation with ≤80°C ambient rise on standard 1-in² copper pad |
| IR (max) | 5 µA @ 25°C - ensures low standby power loss in energy-efficient adapter designs |
Pinout & Package
Package: DO-214AA (SMB), molded plastic case per JEDEC DO-214AA Issue D, matte tin-plated leads, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction | Connected to transformer secondary or DC bus negative in bridge configurations |
| Cathode | Output terminal for forward conduction | Connected to output capacitor positive; polarity marked by visible band on body |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term reliability under thermal cycling and humidity exposure in industrial environments |
| Fast recovery (250 ns) | Reduces reverse recovery charge (Qrr) to ~15 nC, lowering diode-induced switching loss |
| Moisture sensitivity level 1 | Enables direct placement without pre-baking, streamlining SMT line throughput |
| RoHS & halogen-free | Meets IPC-1752A material declaration requirements for EU and Asia-Pacific markets |
Applications
| AC/DC Adapters | Offline SMPS |
|---|---|
Use Scenario: 12–19 V, 1–2 A wall adapters for consumer electronics and IoT gateways. IC Role / Device Role / Timing Role: Secondary-side output rectifier replacing slower general-purpose diodes. Use Value: 250 ns trr cuts switching loss by ~35% vs. 1N4007, improving efficiency from 78% to 82% at full load. | Use Scenario: 36 W open-frame power supplies in industrial HMIs and PLC I/O modules. IC Role / Device Role / Timing Role: Output rectifier in discontinuous conduction mode (DCM) flyback converter. Use Value: 1.3 V VF and 55 °C/W RθJA enable natural convection cooling without heatsink below 2 A load. |
| LED Drivers | DC-DC Converters |
Use Scenario: Constant-current LED drivers for commercial downlights operating from 120/230 VAC. IC Role / Device Role / Timing Role: Rectifier in auxiliary winding feedback circuit and output stage. Use Value: Low IR (5 µA) prevents false triggering of feedback optocouplers during no-load conditions. | Use Scenario: Isolated 5 V/2 A bias supply for gate drivers in motor control inverters. IC Role / Device Role / Timing Role: Secondary-side rectifier in forward converter with synchronous rectification assist. Use Value: DO-214AA footprint allows drop-in replacement of legacy SMB rectifiers without layout change. |
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 2 A / 400 V rating; 1.25 V VF (typ), 200 ns trr, TO-220AC package | Requires through-hole mounting and heatsink; unsuitable for compact SMT designs | Select when higher surge robustness (100 A IFSM) and forced-air cooling are available |
| ON Semi MUR240 | 2 A / 400 V; 1.25 V VF (max), 35 ns trr, DO-214AC (SMA) package | Smaller SMA footprint limits thermal mass; lower trr increases EMI risk without snubbing | Prefer for ultra-fast switching where layout includes RC snubber and tight EMI filtering |
Compared with STTH2R04 and MUR240, the RS2G R5G offers optimal balance of SMT compatibility, thermal performance (55 °C/W), and cost-effective fast recovery for mid-power adapters - without requiring mechanical redesign or added snubbers.
Availability
RS2G R5G is available at Aetrix Electronics and suitable for AC/DC adapters, offline SMPS, and LED drivers requiring stable component supply, consistent parametric performance across production lots, and full traceability to Taiwan Semiconductor wafer fabrication.
Supply support for RS2G R5G 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 device markets since 1979.
The RS2G R5G belongs to TSC's RS2x fast recovery rectifier family, engineered specifically for high-efficiency, cost-sensitive AC/DC conversion in consumer and industrial power supplies - emphasizing manufacturability, thermal robustness, and JEDEC-standard packaging.
FAQ
What is the maximum junction temperature rating for RS2G R5G?
The RS2G R5G has a maximum junction temperature (TJ MAX) of +175°C, allowing operation in high-ambient environments such as enclosed LED drivers or industrial power modules. This rating is validated per absolute maximum ratings table in the official Taiwan Semiconductor datasheet Version L2304, and enables reliable performance when derated per the forward current derating curve in Figure 1.
Does RS2G R5G meet RoHS and halogen-free requirements?
Yes, RS2G R5G is RoHS compliant and halogen-free, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. The molding compound and plating materials satisfy EU Directive 2011/65/EU and IPC-1752A reporting standards, with no brominated flame retardants or chlorine-based additives used in the DO-214AA (SMB) package construction.
What is the reverse recovery time (trr) specification for RS2G R5G?
The RS2G R5G has a maximum reverse recovery time (trr) of 250 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions per the ELECTRICAL SPECIFICATIONS table. This value applies specifically to RS2G and is confirmed across all revisions of the L2304 datasheet - distinguishing it from RS2A (150 ns) and RS2K (500 ns) variants in the same family.
Can RS2G R5G be used as a direct replacement for RS2B or RS2D in existing designs?
No - RS2G R5G is not a direct replacement for RS2B (100 V) or RS2D (200 V) due to its higher 400 V VRRM rating. While pin-compatible in DO-214AA, substituting RS2G R5G may over-specify voltage margin and slightly increase VF due to process tuning; verify thermal and conduction loss impact using the RS2G R5G's 1.3 V VF (max) and 55 °C/W RθJA before redesigning.
What is the moisture sensitivity level (MSL) of RS2G R5G?
The RS2G R5G has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into reflow soldering without baking. This eliminates pre-conditioning steps in high-volume SMT lines and reduces handling risk compared to MSL 2a or higher discrete rectifiers.
RS2G R5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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 R5G FAQ
1.How can I place an order for RS2G R5G through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2G R5G 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 R5G reliable?
The price and inventory of RS2G R5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2G R5G is usually 5 days.
3.What payment methods are accepted for RS2G R5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2G R5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2G R5G?
RS2G R5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2G R5G 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 R5G?
For technical support, including RS2G R5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2G R5G requirements.
6.How does Aetrix verify that RS2G R5G is sourced from the original manufacturer or authorized distributors?
All RS2G R5G 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 R5G meets industry standards.
7.What is the process for return or replacement of RS2G R5G?
All RS2G R5G units undergo pre-shipment inspection (PSI). If there is an issue with RS2G R5G, 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 R5G part is unused and in its original packaging.
Return procedure for RS2G R5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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