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Taiwan Semiconductor Corporation S3G V7G
- Part No.:
- S3G V7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S3G V7G.pdf
- Description:
- DIODE GEN PURP 400V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,119
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Product details
Overview
S3G V7G from Taiwan Semiconductor is a 400 V, 3 A surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring 100 A surge capability, 1.15 V max forward voltage at 3 A, and 10 µA max reverse leakage at 25°C - used in AC/DC front-end rectification for industrial power adapters and LED drivers.
For engineers reviewing the S3G V7G datasheet, S3G V7G pinout, S3G V7G application, or S3G V7G equivalent, key selection criteria include repetitive peak reverse voltage (400 V), average forward current (3 A), thermal resistance (13 °C/W junction-to-lead), and RoHS/halogen-free compliance for high-reliability power conversion designs.
Technical Context
This single-die standard recovery rectifier operates with a maximum junction temperature of 150°C and exhibits 1500 ns reverse recovery time under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A test conditions. Its glass-passivated junction ensures stable performance across temperature and humidity stress.
The device supports automated placement per J-STD-020 Level 1 moisture sensitivity and uses matte tin-plated leads compliant with J-STD-002 solderability requirements. Polarity is marked by a cathode band on the DO-214AB molded body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage the diode blocks without breakdown; defines minimum input voltage derating margin in bridge or single-phase rectifier designs. |
| IF(AV) | 3 A - Continuous average forward current rating at TC = 75°C; determines heatsink sizing and PCB copper area for thermal management. |
| IFSM | 100 A - Non-repetitive surge current (8.3 ms half-sine); enables robustness against line transients and inrush in SMPS input stages. |
| VF | ≤1.15 V @ 3 A, 25°C - Forward voltage drop directly impacts conduction loss and efficiency in high-current rectification paths. |
| IR | ≤10 µA @ 400 V, 25°C - Low reverse leakage preserves efficiency in high-impedance hold-up or standby circuits. |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance; critical for estimating die temperature rise when mounted to a thermally optimized pad or heatsink tab. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount plastic case with cathode band marking; dimensions per JEDEC DO-214AB Issue D; UL 94V-0 rated molding compound; weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to AC input or transformer secondary side; requires adequate copper pour for thermal dissipation and current handling. |
| Cathode | Forward current exit terminal | Marked by visible band; connects to bulk capacitor positive or downstream DC bus; polarity error causes open-circuit failure. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term reliability under thermal cycling and humidity exposure; eliminates need for conformal coating in industrial environments. |
| Low VF (≤1.15 V) | Reduces conduction losses by ~15% vs. comparable 3 A rectifiers with VF > 1.3 V, improving system efficiency in 12–24 V output SMPS. |
| J-STD-020 Level 1 MSL | Enables direct placement without baking; eliminates production delay and moisture-related popcorning during reflow. |
| RoHS & halogen-free | Meets EU Directive 2011/65/EU and IEC 61249-2-21; required for export to EU, Japan, and South Korea markets. |
Applications
| Industrial Power Adapters | LED Driver Input Rectification |
|---|---|
Use Scenario: 100–240 VAC input stage of DIN-rail mounted 48 V/5 A industrial adapter supplying PLC I/O modules. IC Role / Device Role / Timing Role: Primary-side unidirectional current steering element converting AC to pulsating DC before bulk capacitance and regulation. Use Value: 400 V VRRM provides 2× safety margin over 240 VAC peak (340 V), while 100 A IFSM withstands cold-start surges without degradation. | Use Scenario: Off-line LED driver for street lighting operating in ambient temperatures up to 85°C. IC Role / Device Role / Timing Role: Bridge rectifier leg (in full-wave configuration) delivering DC bus to PFC controller and LED constant-current stage. Use Value: 150°C TJ max and 13 °C/W RθJL enable stable operation without forced air cooling, reducing BOM cost versus active-cooled alternatives. |
| Switching Mode Power Supply (SMPS) | DC-DC Converter Input Stage |
Use Scenario: Secondary-side rectification in 36 V/10 A telecom rectifier module with synchronous FET replacement path. IC Role / Device Role / Timing Role: Freewheeling and output rectification diode in forward or flyback topology; handles continuous 3 A load with minimal voltage drop. Use Value: ≤1.15 V VF minimizes power loss (≤3.45 W) at full load, easing thermal design compared to higher-VF alternatives. | Use Scenario: Input rectifier in isolated 24 V to 5 V/15 A DC-DC converter for factory automation controllers. IC Role / Device Role / Timing Role: AC input conditioning component feeding EMI filter and primary-side switch; operates in discontinuous conduction mode. Use Value: 10 µA IR at 25°C and 250 µA at 125°C ensures negligible standby leakage, supporting <100 mW no-load consumption targets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3R04S | 400 V VRRM, 3 A IF, 1.25 V VF max, TO-277 package (smaller footprint than SMC) | Lower thermal resistance (RθJA = 40 °C/W vs. 47 °C/W), but lower IFSM (60 A) | Select when board space is constrained and surge immunity is secondary to footprint size. |
| ES3G | 400 V VRRM, 3 A IF, 1.7 V VF max, same DO-214AB package | Higher VF increases conduction loss; faster trr (~500 ns) but not required for 60/50 Hz rectification | Select only if legacy design uses ES3G and thermal budget allows +1.7 W extra loss at full load. |
Compared with STTH3R04S and ES3G, the S3G V7G delivers optimal balance of surge robustness (100 A), low VF (≤1.15 V), and industry-standard DO-214AB compatibility - making it preferred for cost-sensitive, thermally demanding industrial rectifier applications where reliability under transient stress is critical.
Availability
S3G V7G is available at Aetrix Electronics and suitable for industrial power adapters, LED driver input rectification, and switching mode power supply designs requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for S3G V7G 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 industrial, computing, and consumer markets since 1979.
The S3G V7G belongs to TSC's S3x series of general-purpose surface-mount rectifiers, engineered specifically for high-efficiency, high-reliability AC/DC conversion in cost-sensitive industrial power systems.
FAQ
What is the maximum junction temperature rating for the S3G V7G?
The S3G V7G has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet. This allows reliable operation in enclosed industrial enclosures with ambient temperatures up to 85°C when properly heatsinked. The S3G V7G must not exceed this limit during steady-state or transient conditions to avoid parametric shift or premature failure.
Does the S3G V7G have a specified reverse recovery time (trr)?
Yes, the S3G V7G specifies a typical reverse recovery time (trr) of 1500 ns under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is measured per JEDEC standards and reflects its behavior as a standard recovery rectifier - suitable for line-frequency and low-kHz switching applications, but not recommended for high-frequency (>100 kHz) synchronous rectification where fast recovery or Schottky devices are preferred. The S3G V7G datasheet confirms this parameter in the Electrical Specifications table.
Is the S3G V7G lead-free and RoHS compliant?
Yes, the S3G V7G is fully RoHS compliant and halogen-free, as explicitly stated in the Features section of the Taiwan Semiconductor datasheet. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the molding compound complies with UL 94V-0 flammability rating. These attributes make the S3G V7G suitable for export to EU, Japan, and other regulated markets requiring strict environmental compliance - confirmed in the official S3A–S3M product brief.
What is the marking code for the S3G V7G on the device body?
The S3G V7G is marked on the device body with "S3G" as the part identifier, followed by date code and factory code per the Marking Diagram in the Taiwan Semiconductor datasheet. The cathode is indicated by a distinct band adjacent to the marking. No "V7G" suffix appears on the physical device - "V7G" is an internal ordering or tape-and-reel variant code used by distributors and does not affect electrical or mechanical specifications of the S3G V7G.
Can the S3G V7G replace the ES3G in an existing design?
The S3G V7G can serve as a functional alternative to the ES3G in most cases due to identical DO-214AB package, 400 V VRRM, and 3 A IF rating. However, the S3G V7G offers lower VF (≤1.15 V vs. ≤1.7 V) and higher IFSM (100 A vs. 60 A), improving efficiency and surge tolerance. Thermal design must be revalidated, as differences in RθJL and RθJA may affect junction temperature. The S3G V7G is not a drop-in replacement unless layout and thermal margins accommodate its improved but distinct performance envelope.
S3G V7G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 60pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S3G V7G FAQ
1.How can I place an order for S3G V7G through Aetrix?
Please submit a Request for Quotation (RFQ) for S3G V7G 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 S3G V7G reliable?
The price and inventory of S3G V7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3G V7G is usually 5 days.
3.What payment methods are accepted for S3G V7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3G V7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3G V7G?
S3G V7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3G V7G 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 S3G V7G?
For technical support, including S3G V7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3G V7G requirements.
6.How does Aetrix verify that S3G V7G is sourced from the original manufacturer or authorized distributors?
All S3G V7G 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 S3G V7G meets industry standards.
7.What is the process for return or replacement of S3G V7G?
All S3G V7G units undergo pre-shipment inspection (PSI). If there is an issue with S3G V7G, 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 S3G V7G part is unused and in its original packaging.
Return procedure for S3G V7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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