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Taiwan Semiconductor Corporation S3DB R5G
- Part No.:
- S3DB R5G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S3DB R5G.pdf
- Description:
- DIODE GEN PURP 200V 3A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,093
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Product details
Overview
S3DB R5G from Taiwan Semiconductor is a 3A, 200V glass-passivated standard surface-mount rectifier diode in DO-214AA (SMB) package, featuring 1.15V max forward voltage at 3A/25°C, 80A surge capability, and 150°C max junction temperature - used in AC/DC front-end rectification for offline SMPS and LED drivers.
For engineers reviewing the S3DB R5G datasheet, S3DB R5G pinout, S3DB R5G application, or S3DB R5G equivalent, key selection criteria include repetitive peak reverse voltage (200V), forward current rating (3A), thermal resistance (10°C/W), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance.
Technical Context
This single-die standard recovery rectifier uses a glass-passivated PN junction to achieve stable reverse blocking and low conduction loss. Its 1500ns reverse recovery time and 40pF junction capacitance reflect trade-offs optimized for cost-sensitive, medium-frequency switching applications rather than high-frequency or ultra-fast recovery use cases.
The device operates across -55°C to +150°C junction temperature range with 10°C/W junction-to-lead thermal resistance, enabling direct PCB heat dissipation without heatsinks in moderate-power designs. Matte tin-plated leads ensure reliable solderability per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse voltage the diode blocks reliably in continuous operation |
| IF | 3 A - Continuous average forward current rating at 75°C lead temperature |
| IFSM | 80 A - Non-repetitive peak surge current survivable for one 8.3ms half-sine cycle |
| VF @ 3A | ≤1.15 V - Forward voltage drop determining conduction loss and thermal load at rated DC current |
| RθJL | 10 °C/W - Thermal resistance from junction to lead, defining temperature rise under steady-state power dissipation |
| TJ max | +150 °C - Maximum allowable junction temperature limiting ambient and power derating envelope |
| CJ | 40 pF - Junction capacitance influencing high-frequency switching noise and snubber design |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode-indicating band; molded UL 94V-0 compound; matte tin-plated leads; polarity marked by cathode band; weight ≈0.090g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of AC input or transformer secondary in bridge or single-phase rectifier |
| Cathode | Current exit point during forward conduction | Connected to bulk capacitor positive rail or output filter in standard rectifier configuration |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable long-term reverse leakage performance and enhanced humidity resistance vs. epoxy-passivated alternatives |
| J-STD-020 Level 1 moisture sensitivity | Allows unlimited floor life before reflow; no baking required prior to assembly |
| UL 94V-0 molding compound | Meets flammability safety requirement for end equipment in industrial and consumer power supplies |
| RoHS and halogen-free compliance | Supports environmental compliance for global markets including EU WEEE/RoHS and China RoHS II |
Applications
| LED Driver Power Stage | AC/DC Adapter Input Rectifier |
|---|---|
Use Scenario: Rectifying 50/60Hz AC line input into DC bus for constant-current LED driver ICs in commercial lighting fixtures. IC Role / Device Role / Timing Role: Primary-side uncontrolled rectifier converting AC mains to high-voltage DC before buck/buck-boost regulation. Use Value: 200V VRRM provides sufficient margin over 265VAC peak (≈375V), while 3A IF supports up to ~35W output with adequate thermal margin. | Use Scenario: Full-wave or half-wave rectification in universal-input (90–264VAC) wall adapters for consumer electronics. IC Role / Device Role / Timing Role: Discrete rectifying element in compact, low-cost linear or quasi-resonant flyback front-end stages. Use Value: Low 1.15V VF reduces conduction loss and improves efficiency at light-to-moderate loads typical of USB-powered devices. |
| Industrial SMPS Input Stage | DC-DC Converter Input Protection |
Use Scenario: Input rectification in 24–48VDC input industrial switch-mode power supplies handling 110/220VAC backup or auxiliary inputs. IC Role / Device Role / Timing Role: Standby or auxiliary AC rectifier providing bias supply or control rail during main converter fault conditions. Use Value: 80A IFSM withstands inrush surges from cold-started capacitors and line transients per IEC 61000-4-5. | Use Scenario: Reverse-polarity and backfeed protection on DC input rails of isolated DC-DC modules in battery-powered systems. IC Role / Device Role / Timing Role: Unidirectional blocking diode preventing damage from incorrect battery insertion or regenerative feedback. Use Value: 150°C TJ max enables reliable operation in sealed enclosures with limited airflow, such as portable test equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L02 | 200V VRRM, 3A IF, but faster trr = 75ns; higher VF = 1.3V @ 3A | Better suited for high-frequency PFC or resonant topologies where fast recovery reduces switching loss | Select S3DB R5G when cost and thermal robustness outweigh need for ultra-fast recovery |
| SB320-E3/57T | 20V lower VRRM (180V), same IF/IFSM, slightly higher VF (1.18V) | Marginally reduced line-voltage headroom; acceptable only in fixed 230VAC-only designs | Choose S3DB R5G for universal-input compatibility requiring full 200V rating |
Compared with STTH3L02 and SB320-E3/57T, the S3DB R5G offers optimal balance of cost, thermal resilience, and line-voltage margin for mainstream offline rectification - prioritizing reliability and manufacturability over speed or minimal VF.
Availability
S3DB R5G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC/DC adapters requiring stable component supply, J-STD-020 Level 1 handling, and RoHS-compliant sourcing.
Supply support for S3DB 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 S3AB–S3MB series was designed specifically for cost-effective, high-yield surface-mount rectification in mass-produced AC/DC converters - emphasizing process stability, JEDEC-compliant packaging, and broad voltage scalability across a single footprint.
FAQ
What is the maximum junction temperature rating for the S3DB R5G?
The S3DB R5G has a maximum junction temperature (TJ) rating of +150°C. This allows operation in thermally constrained environments such as sealed LED drivers or compact adapters. Derating curves in the datasheet define safe operating current versus ambient temperature, and the 10°C/W junction-to-lead thermal resistance supports direct PCB copper pour cooling. The S3DB R5G must not exceed this limit to maintain reliability and parametric integrity.
Does the S3DB R5G meet RoHS and halogen-free requirements?
Yes, the S3DB R5G is RoHS compliant and halogen-free per IEC 61249-2-21. Taiwan Semiconductor confirms this in the official product documentation, and the device carries appropriate marking and certification for export to EU, China, and other regulated markets. These compliance attributes are integral to the S3DB R5G's qualification for consumer, industrial, and lighting applications where material restrictions apply.
What does the "R5G" suffix indicate in S3DB R5G?
The "R5G" suffix in S3DB R5G denotes tape-and-reel packaging: "R" = reel, "5" = 3,000 units per reel, and "G" = green (halogen-free) compound. This matches Taiwan Semiconductor's ordering code convention for the S3AB–S3MB family. The base part "S3DB" identifies the 200V variant; the full orderable part number S3DB R5G specifies both electrical rating and packaging format for procurement and assembly planning.
Is the S3DB R5G suitable for use in a full-wave bridge rectifier configuration?
Yes, the S3DB R5G can be used in discrete full-wave bridge configurations, though it is a single-diode device requiring four units per bridge. Its 200V VRRM, 3A IF, and 80A IFSM make it appropriate for bridges handling up to ~120W with proper thermal design. Unlike monolithic bridge packages, discrete S3DB R5G placement allows layout flexibility and individual thermal management - a key advantage in space-constrained or high-reliability S3DB R5G implementations.
How does the reverse recovery time of the S3DB R5G affect its suitability for high-frequency switching?
The S3DB R5G has a reverse recovery time (trr) of 1500ns, classifying it as a standard recovery rectifier. This makes it unsuitable for high-frequency (>100kHz) topologies like active clamp or LLC resonant converters where fast recovery minimizes switching loss and EMI. It is optimized for 50/60Hz line rectification and low-to-medium frequency (<60kHz) flyback or forward converters. For those applications, the S3DB R5G delivers predictable performance with lower cost and higher surge robustness than ultrafast alternatives.
S3DB 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):
- 200 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.5 µs
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- 40pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S3DB R5G FAQ
1.How can I place an order for S3DB R5G through Aetrix?
Please submit a Request for Quotation (RFQ) for S3DB 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 S3DB R5G reliable?
The price and inventory of S3DB R5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3DB R5G is usually 5 days.
3.What payment methods are accepted for S3DB R5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3DB R5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3DB R5G?
S3DB R5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3DB 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 S3DB R5G?
For technical support, including S3DB R5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3DB R5G requirements.
6.How does Aetrix verify that S3DB R5G is sourced from the original manufacturer or authorized distributors?
All S3DB 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 S3DB R5G meets industry standards.
7.What is the process for return or replacement of S3DB R5G?
All S3DB R5G units undergo pre-shipment inspection (PSI). If there is an issue with S3DB 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 S3DB R5G part is unused and in its original packaging.
Return procedure for S3DB R5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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