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Taiwan Semiconductor Corporation S3GB
- Part No.:
- S3GB
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S3GB.pdf
- Description:
- DIODE GEN PURP 400V 3A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,770
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Product details
Overview
S3GB from Taiwan Semiconductor is a 3A, 600V repetitive peak reverse voltage (VRRM) standard surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring glass-passivated junction, low forward voltage drop (max 1.15 V at 3 A), and high surge current capability (80 A IFSM). It is used in AC/DC front-end rectification for offline switch-mode power supplies.
For engineers reviewing the S3GB datasheet, S3GB pinout, S3GB application, or S3GB equivalent, key selection criteria include its 600V VRRM rating, 1500 ns reverse recovery time, moisture sensitivity level 1 compliance, RoHS/halogen-free status, and suitability for automated SMT placement in compact power adapters and lighting converters.
Technical Context
The S3GB is a single-die, unidirectional standard recovery rectifier optimized for cost-sensitive, medium-voltage AC/DC conversion where fast recovery is not required. Its 1500 ns trr and 40 pF junction capacitance reflect trade-offs favoring low conduction loss over switching speed.
Thermally, it delivers 10 °C/W junction-to-lead resistance and operates across –55 °C to +150 °C junction temperature range. The device uses matte tin-plated leads compliant with J-STD-002 solderability and meets JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in bridge or single-phase rectifier configurations |
| IF | 3 A - Continuous average forward current at TA = 25°C; derates linearly above 25°C per forward current derating curve |
| VF (max) | 1.15 V @ 3 A, 25°C - Directly impacts conduction loss and thermal design in high-duty-cycle applications |
| IFSM | 80 A - Peak non-repetitive surge current handling for line-voltage transients or startup inrush |
| trr | 1500 ns - Reverse recovery time determines switching losses and EMI in hard-switched topologies |
| RθJL | 10 °C/W - Enables thermal estimation from lead temperature; critical for PCB copper pour sizing and heatsinking |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, single-anode/single-cathode configuration. Cathode indicated by molded band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to AC input or transformer secondary; must withstand full reverse voltage when cathode is biased higher |
| Cathode (Lead 2) | Forward current exit point | Connected to bulk capacitor or DC bus; polarity marking ensures correct orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; supports direct use from sealed tape-and-reel packaging |
| UL 94V-0 molding compound | Meets flammability safety requirements for enclosed power supplies without additional flame-retardant barriers |
| J-STD-002 solderable leads | Guarantees consistent wetting and joint integrity across lead-free reflow profiles (e.g., SAC305, peak 260°C) |
Applications
| AC/DC Adapter Rectification | LED Driver Input Stage |
|---|---|
Use Scenario: 600V-rated offline adapter converting 85–265 VAC to 12 VDC for consumer electronics. IC Role / Device Role / Timing Role: Primary-side standard rectifier in voltage-doubler or bridge configuration. Use Value: Low VF minimizes conduction loss at 3 A load; 600 V VRRM provides 2× margin over 300 VDC peak input. | Use Scenario: Constant-current LED driver for commercial downlights operating from universal AC input. IC Role / Device Role / Timing Role: Input rectifier feeding PFC stage or bulk capacitor in non-isolated buck topology. Use Value: 80 A IFSM handles cold-start surges; halogen-free construction complies with EU lighting directives. |
| Industrial SMPS Front-End | DC-DC Converter Input Protection |
Use Scenario: 24 V/5 A industrial power supply with wide ambient temperature range (–40°C to +70°C). IC Role / Device Role / Timing Role: Output rectifier in flyback secondary or input rectifier in forward converter. Use Value: 150°C TJ max and –55°C TSTG enable operation in unventilated enclosures; RθJL = 10 °C/W simplifies thermal pad design. | Use Scenario: 48 V input DC-DC module accepting upstream rectified AC or battery backup with transient suppression. IC Role / Device Role / Timing Role: Polarity protection and reverse-blocking element ahead of primary-side controller. Use Value: Cathode band marking prevents misorientation; 10 µA IR at 25°C ensures minimal leakage in standby mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S (STMicroelectronics) | 600 V VRRM, 3 A IF, but faster trr = 75 ns; higher VF = 1.3 V typical | Better suited for higher-frequency SMPS (>100 kHz); less optimal for low-cost, low-frequency adapters | Select S3GB when conduction loss dominates and cost is critical; choose STTH3L06S only if reduced switching loss justifies premium and layout changes |
| ES3G (Vishay) | Same DO-214AA package, 600 V VRRM, 3 A IF, VF max = 1.25 V, trr = 500 ns | Offers tighter trr spec than S3GB but higher VF; identical moisture sensitivity and RoHS status | S3GB remains preferred where 1500 ns trr is acceptable and lower VF improves thermal margin in space-constrained designs |
Compared with STTH3L06S and ES3G, the S3GB prioritizes lowest forward voltage and cost over speed-making it optimal for <60 kHz rectification where thermal headroom and BOM cost drive selection.
Availability
S3GB is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC/DC adapters requiring stable component supply, long-lifecycle availability, and RoHS-compliant sourcing.
Supply support for S3GB 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, specializing in power rectifiers, TVS diodes, and MOSFETs since 1979.
The S3GB belongs to TSC's S3x series of standard recovery rectifiers designed specifically for cost-optimized, high-volume AC/DC front-end applications in consumer and industrial power supplies.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) rating for the S3GB?
The S3GB has a VRRM rating of 600 V, meaning it can safely block up to 600 V of repetitive reverse voltage in circuit operation. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version M2102) and defines the upper limit for reliable reverse-bias operation in bridge or half-wave rectifier configurations. Exceeding this voltage risks avalanche breakdown and permanent damage to the S3GB.
Does the S3GB support lead-free reflow soldering processes?
Yes, the S3GB supports lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the device is rated for peak reflow temperatures up to 260°C per JEDEC J-STD-020. The moisture sensitivity level is rated Class 1, so no pre-bake is required before assembly-enabling direct use from sealed tape-and-reel packaging in standard SAC305 reflow profiles. This applies to every unit of the S3GB.
What is the reverse recovery time (trr) specification for the S3GB, and how does it affect circuit performance?
The S3GB has a reverse recovery time (trr) of 1500 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This relatively long trr indicates it is a standard (not fast or ultrafast) recovery rectifier, making it best suited for line-frequency or low-switching-frequency (<60 kHz) applications. In higher-frequency designs, the S3GB's trr would increase switching losses and EMI-so designers should verify operating frequency compatibility before selecting the S3GB.
Is the S3GB halogen-free and RoHS compliant?
Yes, the S3GB is both halogen-free in accordance with IEC 61249-2-21 and RoHS compliant. These environmental qualifications are explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet (Version M2102) and verified through material declarations. The halogen-free status applies to the molding compound and internal construction, and RoHS compliance covers all six restricted substances. This makes the S3GB suitable for export to EU, China, and other regulated markets.
What package type and marking code does the S3GB use?
The S3GB is housed in a DO-214AA (SMB) surface-mount package with standardized outline dimensions and suggested PCB pad layout per the manufacturer's Package Outline Dimensions drawing. Its marking code is "S3GB", laser-printed on the cathode-band side of the body, with "G" indicating the 600 V variant within the S3x family. Polarity is clearly indicated by a visible cathode band, ensuring correct orientation during automated placement of the S3GB.
S3GB 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):
- 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 @ 400 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
S3GB FAQ
1.How can I place an order for S3GB through Aetrix?
Please submit a Request for Quotation (RFQ) for S3GB 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 S3GB reliable?
The price and inventory of S3GB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3GB is usually 5 days.
3.What payment methods are accepted for S3GB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3GB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3GB?
S3GB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3GB 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 S3GB?
For technical support, including S3GB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3GB requirements.
6.How does Aetrix verify that S3GB is sourced from the original manufacturer or authorized distributors?
All S3GB 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 S3GB meets industry standards.
7.What is the process for return or replacement of S3GB?
All S3GB units undergo pre-shipment inspection (PSI). If there is an issue with S3GB, 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 S3GB part is unused and in its original packaging.
Return procedure for S3GB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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