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Taiwan Semiconductor Corporation S4D V7G
- Part No.:
- S4D V7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S4D V7G.pdf
- Description:
- DIODE GEN PURP 200V 4A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,547
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Product details
Overview
S4D V7G from Taiwan Semiconductor is a 200V, 4A surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring 100A peak surge current capability, 1.15V max forward voltage at 4A/25°C, and 10µA max reverse leakage at 25°C - deployed in AC/DC front-end stages of compact switching mode power supplies.
For engineers reviewing the S4D V7G datasheet, S4D V7G pinout, S4D V7G application, or S4D V7G equivalent, key selection criteria include repetitive peak reverse voltage (200V), thermal resistance (13°C/W junction-to-lead), reverse recovery time (1500ns), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance for high-reliability industrial power conversion designs.
Technical Context
This single-die standard recovery rectifier operates with a maximum junction temperature of 150°C and exhibits a typical junction capacitance of 60pF at 1MHz/4V. Its 1500ns reverse recovery time and 100A IFSM rating support robust performance under transient overload conditions in offline SMPS topologies.
The device uses glass-passivated chip junction construction, matte tin-plated leads compliant with J-STD-002, and UL 94V-0 molding compound. Polarity is indicated by a cathode band; weight is approximately 0.210g.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines safe AC input voltage derating margin in bridge or single-diode rectification. |
| IF | 4 A - Continuous average forward current; sets minimum heatsink requirement for sustained conduction in 50/60Hz or high-frequency rectifier legs. |
| IFSM | 100 A - Non-repetitive peak surge current (8.3ms half-sine); determines survivability during cold-start inrush or line transients. |
| VF (max) | 1.15 V @ 4A, 25°C - Forward voltage drop directly impacts conduction loss and thermal load in high-efficiency power stages. |
| trr | 1500 ns - Reverse recovery time; influences switching loss and EMI generation when used in freewheeling or output rectification. |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour thermal design without additional heatsink for moderate power levels. |
Pinout & Package
Package: DO-214AB (SMC) - surface-mount, molded plastic case with cathode band marking; lead finish: matte tin; flammability rating: UL 94V-0; moisture sensitivity level: J-STD-020 Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC input or transformer secondary low-side; requires adequate trace width for 4A continuous current. |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to bulk capacitor positive or DC bus; critical for polarity-sensitive PCB layout. |
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. |
| Low VF (1.15V max) | Reduces conduction loss by ~15% vs. comparable 1N54xx series; improves efficiency in 12–24V output SMPS designs. |
| 100A IFSM rating | Supports >20× rated current surge without bond wire failure; eliminates external inrush limiters in adapter applications. |
| J-STD-020 Level 1 MSL | Enables unlimited floor life and standard reflow profile use without baking; reduces manufacturing overhead in high-volume SMT lines. |
Applications
| AC/DC Adapters | LED Driver Power Stages |
|---|---|
Use Scenario: 5–65W universal-input wall adapters powering consumer electronics. IC Role / Device Role / Timing Role: Primary-side input rectifier converting 85–265V AC to pulsating DC before PFC or flyback controller. Use Value: 200V VRRM provides 2× safety margin over 265V AC peak; 1.15V VF minimizes heat buildup in sealed plastic enclosures. | Use Scenario: Constant-voltage LED drivers for commercial downlights and street lighting. IC Role / Device Role / Timing Role: Bulk rectification stage feeding buck or flyback converter operating at 25–100kHz. Use Value: 1500ns trr avoids excessive switching loss at 100kHz; DO-214AB footprint allows dense PCB layout with minimal thermal pad area. |
| Industrial SMPS Front-Ends | DC-DC Converter Input Rectification |
Use Scenario: 100–300W open-frame power supplies for PLCs and motor drives. IC Role / Device Role / Timing Role: Single-phase bridge leg component handling 4A average input current at 50/60Hz line frequency. Use Value: 13°C/W RθJL enables direct thermal coupling to copper pour; 150°C TJ max supports operation in 70°C ambient enclosures. | Use Scenario: Isolated DC-DC modules converting 24V/48V bus to 3.3V/5V/12V outputs. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement where cost-sensitive designs retain standard recovery diodes. Use Value: 100A IFSM withstands output short-circuit events; halogen-free/ROHS compliance meets IPC-1752 material declaration requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH4R02DJF | 200V, 4A, 1.1V VF max, 1200ns trr, TO-277 package | Lower trr reduces switching loss but requires different footprint and thermal interface | Preferred where EMI reduction is critical and board space permits TO-277 layout |
| ON Semi MUR420 | 200V, 4A, 1.25V VF max, 75ns trr, DO-201AD package | Faster recovery enables higher-frequency operation but higher VF increases conduction loss | Used in compact designs needing faster recovery, though thermal performance less favorable than S4D V7G |
Compared with STTH4R02DJF and MUR420, the S4D V7G delivers superior thermal resistance (13°C/W vs. ≥25°C/W) and lower VF in the same current class, making it optimal for thermally constrained, cost-sensitive 50/60Hz rectification where ultra-fast recovery is unnecessary.
Availability
S4D V7G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and industrial AC/DC converters requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for S4D 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 power, automotive, and industrial markets since 1979.
The S4A–S4M series was developed specifically for high-reliability, cost-optimized AC/DC rectification in consumer and industrial power supplies - emphasizing ruggedness, manufacturability, and compliance with global environmental standards.
FAQ
What is the maximum junction temperature rating for the S4D V7G?
The S4D V7G has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet (Version K2102). This allows reliable operation in enclosed industrial power supplies with ambient temperatures up to 70°C when mounted on sufficient copper area. The S4D V7G must not be operated beyond this limit to avoid permanent degradation of the glass-passivated junction.
Does the S4D V7G have a halogen-free and RoHS-compliant construction?
Yes, the S4D V7G is both RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the "Features" section of the Taiwan Semiconductor datasheet. The molding compound is UL 94V-0 rated, and the matte tin-plated leads meet J-STD-002 solderability requirements. These attributes make the S4D V7G suitable for export to EU, Japan, and other regulated markets requiring strict material declarations.
What is the reverse recovery time (trr) specification for the S4D V7G?
The S4D V7G has a reverse recovery time (trr) of 1500 ns, measured under IF = 0.5A, IR = 1.0A, and Irr = 0.25A per the electrical specifications table. This value is typical for standard recovery rectifiers and aligns with its intended use in 50/60Hz and low-kHz switching applications. The S4D V7G is not optimized for high-frequency synchronous rectification where sub-100ns trr is required.
Is the S4D V7G pin-compatible with other devices in the S4x family?
Yes, all S4x devices including S4D V7G share identical DO-214AB (SMC) package dimensions, pinout, and thermal characteristics - only VRRM and marking code differ across the series. The S4D V7G anode and cathode terminals match S4A, S4B, S4G, etc., enabling drop-in voltage rating upgrades on existing PCBs without layout changes, provided thermal and surge margins remain acceptable.
What packaging and reel quantity is offered for the S4D V7G?
The S4D V7G is supplied in tape-and-reel format with 3,000 units per reel, consistent with the ordering information in the Taiwan Semiconductor datasheet. The carrier tape complies with EIA-481 standards, and the device is packed per J-STD-020 Level 1 moisture sensitivity requirements - no baking is needed prior to SMT reflow. Aetrix Electronics maintains full traceability for each reel lot of S4D V7G.
S4D V7G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Cut Tape (CT)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 4 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:
- 60pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S4D V7G FAQ
1.How can I place an order for S4D V7G through Aetrix?
Please submit a Request for Quotation (RFQ) for S4D 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 S4D V7G reliable?
The price and inventory of S4D V7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S4D V7G is usually 5 days.
3.What payment methods are accepted for S4D V7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S4D V7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S4D V7G?
S4D V7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S4D 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 S4D V7G?
For technical support, including S4D V7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S4D V7G requirements.
6.How does Aetrix verify that S4D V7G is sourced from the original manufacturer or authorized distributors?
All S4D 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 S4D V7G meets industry standards.
7.What is the process for return or replacement of S4D V7G?
All S4D V7G units undergo pre-shipment inspection (PSI). If there is an issue with S4D 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 S4D V7G part is unused and in its original packaging.
Return procedure for S4D V7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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