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Taiwan Semiconductor Corporation S2K R5G
- Part No.:
- S2K R5G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S2K R5G.pdf
- Description:
- DIODE GEN PURP 800V 2A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,868
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Product details
Overview
S2K R5G from Taiwan Semiconductor is a 800 V repetitive peak reverse voltage, 2 A average forward current standard surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring 1.15 V max forward voltage at 2 A and 1500 ns reverse recovery time, used in AC/DC front-end rectification for offline switch-mode power supplies.
For engineers reviewing the S2K R5G datasheet, S2K R5G pinout, S2K R5G application, or S2K R5G equivalent, key selection considerations include VRRM rating margin for line surge, IFSM capability for cold-start surges, thermal resistance (RθJA = 53 °C/W), and SMB footprint compatibility with automated assembly.
Technical Context
This device is a single-die, glass-passivated, standard recovery rectifier optimized for cost-sensitive, medium-voltage AC/DC conversion where fast recovery is not required. Its 1500 ns trr and 30 pF junction capacitance reflect trade-offs favoring low VF and high IFSM over switching speed.
Designed for operation up to TJ = 150 °C, it uses matte tin-plated leads compliant with J-STD-002 and meets JESD201 Class 2 whisker resistance. Polarity is marked by a cathode band on the DO-214AA molded case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports 230 VAC mains with ≥2× safety margin against line transients |
| IF(AV) | 2 A - continuous conduction mode output rectification up to ~35 W at 12 V out |
| VF(max) | 1.15 V @ 2 A, 25°C - contributes ≤2.3 W conduction loss per diode at full load |
| IFSM | 50 A @ 8.3 ms - withstands typical inrush surges in SMPS input stage |
| trr | 1500 ns - suitable for 60–100 kHz flyback and forward converters, not >200 kHz |
| RθJA | 53 °C/W - requires ≥100 mm² copper pour for thermal management at full IF |
| IR(max) | 1 µA @ 25°C, 125 µA @ 125°C - low leakage preserves efficiency in high-impedance bias networks |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode-indicating band; 2-terminal unidirectional configuration; 0.090 g mass; UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction | Connected to AC input or transformer secondary center-tap; must handle full IF and IFSM |
| Cathode | Output terminal for forward conduction | Connected to bulk capacitor or DC bus; polarity mark ensures correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term reliability under humidity and thermal cycling per J-STD-020 Level 1 |
| Matte tin-plated leads | Guarantees solderability without lead-free reflow defects per J-STD-002 |
| Junction-to-lead thermal resistance | 16 °C/W - allows direct heat transfer to PCB copper via cathode/anode pads |
| Halogen-free construction | Complies with IEC 61249-2-21 for RoHS-compliant industrial and lighting end equipment |
| Automated placement compatibility | DO-214AA tape-and-reel packaging (3000/reel) supports high-speed pick-and-place |
Applications
| Offline AC/DC Adapters | LED Driver Input Rectification |
|---|---|
Use Scenario: 10–25 W universal-input wall adapters powering consumer electronics. IC Role / Device Role / Timing Role: Primary-side bridge or single-diode output rectifier handling 2 A DC output current. Use Value: 1.15 V VF minimizes conduction loss at light-to-moderate loads; SMB footprint enables compact board layout. | Use Scenario: Constant-voltage LED drivers for commercial downlights and streetlight modules. IC Role / Device Role / Timing Role: Input rectifier converting 90–305 VAC to DC bus prior to PFC stage. Use Value: 800 V VRRM provides margin above 305 VAC peak (431 V); 50 A IFSM handles lamp hot-swap surges. |
| Industrial SMPS Front-End | DC-DC Converter Input Stage |
Use Scenario: 24–48 V output, 50–100 W industrial power modules operating at -40 to +85 °C ambient. IC Role / Device Role / Timing Role: Secondary-side rectifier in forward or half-bridge topology. Use Value: 150 °C TJ max and J-STD-020 Level 1 moisture rating ensure robustness in uncontrolled environments. | Use Scenario: Isolated DC-DC modules accepting 24–48 VDC input for telecom or datacom systems. IC Role / Device Role / Timing Role: Input-stage rectifier protecting downstream circuitry from reverse polarity or transient events. Use Value: 1 µA IR at 25°C prevents standby power drain; cathode band simplifies visual inspection during QA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R08 | 800 V VRRM, 2 A IF, but faster trr = 75 ns; higher VF = 1.7 V typ | Better suited for high-frequency PFC stages requiring fast recovery | Select STTH2R08 only if trr < 200 ns is required and higher VF is acceptable |
| ON Semi MUR280 | 800 V VRRM, 2 A IF, ultrafast trr = 75 ns; VF = 1.75 V max; same DO-214AA package | Targets high-efficiency, high-switching-frequency designs where EMI reduction is critical | Choose MUR280 when system clock exceeds 150 kHz and reverse recovery noise must be minimized |
Compared with STTH2R08 and MUR280, the S2K R5G offers lower conduction loss and higher surge tolerance at the expense of slower recovery-making it optimal for cost-driven, thermally constrained 60–100 kHz SMPS where EMI filtering is less critical.
Availability
S2K R5G is available at Aetrix Electronics and suitable for offline AC/DC adapters, LED driver input stages, and industrial SMPS front-end rectification requiring stable component supply and J-STD-020 Level 1 moisture sensitivity compliance.
Supply support for S2K 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, automotive, and industrial markets since 1979.
The S2K R5G belongs to TSC's S2x standard rectifier family, engineered for high-volume, cost-optimized AC/DC conversion in consumer and industrial power supplies where reliability, manufacturability, and thermal performance are prioritized over ultrafast switching.
FAQ
What is the maximum junction temperature rating for the S2K R5G?
The S2K R5G has a maximum junction temperature (TJ) rating of +150 °C, enabling reliable operation in enclosed industrial power supplies and LED drivers where ambient temperatures exceed 70 °C. This rating is validated per JEDEC test conditions and supported by its 16 °C/W junction-to-lead thermal resistance. Derating curves in the S2K R5G datasheet confirm usable current capacity down to 1.2 A at TJ = 125 °C.
Is the S2K R5G RoHS and halogen-free compliant?
Yes, the S2K R5G is RoHS compliant and halogen-free per IEC 61249-2-21, using bromine- and chlorine-free molding compounds and matte tin-plated leads. This compliance is verified in TSC's material declarations and supports use in EU CE-marked lighting and industrial equipment without restriction.
What does the 'R5G' suffix indicate in S2K R5G?
The 'R5G' suffix in S2K R5G denotes Taiwan Semiconductor's internal date code and factory marking: 'R5' indicates week 5 of 2023, and 'G' identifies the fabrication site. It does not affect electrical specifications-the device remains functionally identical to S2K marked units per TSC's ordering documentation and datasheet Version N2102.
Can the S2K R5G replace the S2J or S2M in an existing design?
The S2K R5G is not a direct replacement for S2J (600 V) or S2M (1000 V) due to its 800 V VRRM rating. Substitution requires verifying that peak reverse voltage across the diode stays below 800 V with margin. In 230 VAC designs with ≤1.5× line surge, S2K R5G may be viable; for 400 VDC bus applications, S2M is required. Always validate with worst-case transient analysis.
What is the reverse recovery time (trr) of the S2K R5G and how does it impact circuit design?
The S2K R5G has a reverse recovery time (trr) of 1500 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This standard recovery characteristic limits use to switching frequencies ≤100 kHz. At higher frequencies, increased switching losses and EMI require ultrafast alternatives like MUR280. Layout should minimize loop inductance to suppress trr-induced voltage spikes.
S2K 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):
- 800 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 2 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.5 µs
- Current - Reverse Leakage @ Vr:
- 1 µA @ 800 V
- Capacitance @ Vr, F:
- 30pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S2K R5G FAQ
1.How can I place an order for S2K R5G through Aetrix?
Please submit a Request for Quotation (RFQ) for S2K 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 S2K R5G reliable?
The price and inventory of S2K R5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S2K R5G is usually 5 days.
3.What payment methods are accepted for S2K R5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2K R5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S2K R5G?
S2K R5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S2K 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 S2K R5G?
For technical support, including S2K R5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2K R5G requirements.
6.How does Aetrix verify that S2K R5G is sourced from the original manufacturer or authorized distributors?
All S2K 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 S2K R5G meets industry standards.
7.What is the process for return or replacement of S2K R5G?
All S2K R5G units undergo pre-shipment inspection (PSI). If there is an issue with S2K 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 S2K R5G part is unused and in its original packaging.
Return procedure for S2K R5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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