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Taiwan Semiconductor Corporation S15GC R7G
- Part No.:
- S15GC R7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S15GC R7G.pdf
- Description:
- DIODE GEN PURP 400V 15A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,156
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Product details
Overview
S15GC R7G from Taiwan Semiconductor is a 15A, 400V surface-mount glass-passivated silicon rectifier diode in DO-214AB (SMC) package, featuring 1.1V max forward voltage at 15A/25°C, 350A peak surge current, and 8°C/W junction-to-lead thermal resistance - used in freewheeling paths of switching-mode power supplies for telecom and computing systems.
For engineers reviewing the S15GC R7G datasheet, S15GC R7G pinout, S15GC R7G application, or S15GC R7G equivalent, key selection criteria include repetitive peak reverse voltage (400V), forward current rating (15A), thermal resistance (RθJL = 8°C/W), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance for automated SMT assembly in industrial power converters.
Technical Context
The S15GC R7G is a single-die, unidirectional silicon rectifier optimized for high-efficiency DC output stages and inductive energy recovery. Its glass-passivated junction ensures stable reverse leakage (<1µA @ 25°C, <250µA @ 125°C) and robust surge tolerance (350A, 8.3ms half-sine).
Thermally, it delivers 8°C/W junction-to-lead resistance and 44°C/W junction-to-ambient resistance under standard PCB mounting, enabling reliable operation up to 150°C junction temperature in convection-cooled SMPS designs with minimal heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage; defines safe operating range in flyback/freewheeling circuits. |
| IF | 15 A - Continuous average forward current; supports high-power secondary-side rectification without derating at 25°C ambient. |
| IFSM | 350 A - Non-repetitive surge rating (8.3ms); withstands inrush and transient overloads in SMPS startup and fault conditions. |
| VF (max) | 1.1 V @ 15A, 25°C - Low conduction loss reduces heat generation and improves system efficiency in high-current paths. |
| RθJL | 8 °C/W - Enables direct thermal coupling to PCB copper; critical for thermal management in compact, high-density layouts. |
| Junction Temp | –55°C to +150°C - Wide operating range supports industrial and telecom environments with elevated ambient temperatures. |
| CJ | 93 pF @ 1MHz, 4V - Junction capacitance impacts high-frequency switching noise and EMI filtering requirements in fast-switching topologies. |
Pinout & Package
Package: DO-214AB (SMC) - Surface-mount, molded plastic case with matte tin-plated leads; polarity indicated by cathode band; UL 94V-0 rated; weight ≈ 0.270g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) in freewheeling or output rectification. |
| Cathode (K) | Forward current exit / reverse-blocking terminal | Connected to output rail or filter capacitor; cathode band marks this terminal for correct PCB orientation and automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term stability of reverse leakage and breakdown characteristics under humidity and thermal cycling stress. |
| Moisture sensitivity level 1 | Eliminates bake-out requirement before reflow; compatible with standard J-STD-020 SMT processes without floor-life restrictions. |
| Halogen-free (IEC 61249-2-21) | Meets environmental compliance for green electronics manufacturing and end-of-life disposal in regulated markets. |
| High IFSM/IF ratio (23.3×) | Provides margin for transient surges beyond steady-state load, reducing need for parallel devices in high-reliability power supplies. |
Applications
| Telecom Power Rectification | Server PSU Freewheeling |
|---|---|
Use Scenario: Output rectification in 48V intermediate bus converters for 5G base station power modules. IC Role / Device Role / Timing Role: Primary unidirectional power conversion device converting high-frequency AC from transformer secondary to regulated DC output. Use Value: 1.1V VF minimizes conduction loss at 15A, improving overall converter efficiency and reducing thermal load on adjacent MOSFETs and magnetics. | Use Scenario: Freewheeling path in synchronous buck converters supplying CPU core voltage in enterprise servers. IC Role / Device Role / Timing Role: Provides low-loss recirculation path for inductor current during high-side FET off-time. Use Value: 350A IFSM handles large transient currents during load-step events without degradation, ensuring system stability under dynamic loads. |
| Industrial SMPS Input Stage | Networking Equipment AC-DC Adapters |
Use Scenario: Bridge rectifier input stage in 200W industrial AC-DC power supplies operating in harsh ambient conditions. IC Role / Device Role / Timing Role: High-current, high-voltage rectifier handling full-wave rectified line input after EMI filtering. Use Value: 150°C max junction temperature and –55°C to +150°C storage range support operation in sealed enclosures with limited airflow and wide ambient swings. | Use Scenario: Secondary-side rectification in compact wall-mounted PoE injectors and Ethernet switches. IC Role / Device Role / Timing Role: Surface-mount discrete rectifier replacing through-hole alternatives to enable miniaturized, automated assembly. Use Value: DO-214AB (SMC) footprint and J-STD-020 Level 1 moisture rating allow direct integration into high-volume SMT lines without process changes or yield loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1504D (STMicroelectronics) | 400V VRRM, 15A IF, but higher VF (1.25V typ), TO-220AC package, no halogen-free certification stated | Through-hole mounting; requires manual or wave-solder process; unsuitable for fully automated SMT production | Select when legacy board design uses through-hole layout or thermal mass demands TO-220 heatsinking |
| MBR1545CT (ON Semiconductor) | 45V VRRM, dual Schottky configuration, 15A per diode, lower VF (~0.55V), but insufficient reverse voltage for 400V applications | Designed for low-VF DC-DC output stages, not AC line or high-VR freewheeling | Only viable in low-voltage secondary-side rectification where VRRM ≤ 45V is sufficient |
Compared with STTH1504D and MBR1545CT, the S15GC R7G uniquely combines 400V blocking, 15A continuous rating, SMT-ready DO-214AB packaging, and halogen-free compliance - making it the only drop-in solution for automated, high-reliability 400V rectification in telecom and server power supplies.
Availability
S15GC R7G is available at Aetrix Electronics and suitable for telecom power rectification, server PSU freewheeling, and industrial SMPS input-stage applications requiring stable component supply, J-STD-020 Level 1 moisture handling, and RoHS-compliant manufacturing.
Supply support for S15GC R7G 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 for industrial and computing markets.
The S15GC R7G belongs to TSC's S15x series of high-current surface-mount rectifiers, engineered specifically for high-efficiency, high-reliability switching power supplies in telecom infrastructure and datacenter equipment.
FAQ
What is the maximum junction temperature rating for the S15GC R7G?
The S15GC R7G has a maximum junction temperature (TJ) of +150°C and a minimum of –55°C. This wide operating range allows reliable use in enclosed industrial power supplies and telecom equipment where ambient temperatures may exceed 85°C. The S15GC R7G maintains specified electrical performance across this full range when thermal design respects its 8°C/W junction-to-lead resistance.
Does the S15GC R7G meet RoHS and halogen-free requirements?
Yes, the S15GC R7G is RoHS compliant and halogen-free per IEC 61249-2-21. These certifications are confirmed in the official Taiwan Semiconductor datasheet (Version C2102) and verified via material declarations. The S15GC R7G contains no brominated flame retardants or chlorine-based compounds, supporting environmentally responsible manufacturing and end-of-life processing.
What is the moisture sensitivity level (MSL) of the S15GC R7G?
The S15GC R7G is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and requires no baking prior to reflow soldering. This eliminates process steps and yield risk in high-volume SMT assembly lines. The S15GC R7G's DO-214AB (SMC) package construction and molding compound ensure robust moisture resistance without special handling.
How does the forward voltage of the S15GC R7G compare to similar 15A rectifiers?
The S15GC R7G specifies a maximum forward voltage (VF) of 1.1V at 15A and 25°C - competitive with industry-standard 400V rectifiers. Unlike many alternatives with typical VF > 1.15V, the S15GC R7G's tight VF spec reduces conduction losses by ~7% at full load, directly improving system efficiency and easing thermal design in dense power modules.
Is the S15GC R7G pin-compatible with other parts in the S15x series?
Yes, all S15x series rectifiers - including S15JC (600V), S15KC (800V), and S15MC (1000V) - share identical DO-214AB (SMC) package dimensions and anode/cathode pinout. The S15GC R7G can be substituted within the same footprint for voltage-scaling design iterations, provided layout clearance and thermal design accommodate the specific VRRM-dependent leakage and capacitance trade-offs.
S15GC R7G 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):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 400 V
- Capacitance @ Vr, F:
- 93pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S15GC R7G FAQ
1.How can I place an order for S15GC R7G through Aetrix?
Please submit a Request for Quotation (RFQ) for S15GC R7G 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 S15GC R7G reliable?
The price and inventory of S15GC R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S15GC R7G is usually 5 days.
3.What payment methods are accepted for S15GC R7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S15GC R7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S15GC R7G?
S15GC R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S15GC R7G 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 S15GC R7G?
For technical support, including S15GC R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S15GC R7G requirements.
6.How does Aetrix verify that S15GC R7G is sourced from the original manufacturer or authorized distributors?
All S15GC R7G 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 S15GC R7G meets industry standards.
7.What is the process for return or replacement of S15GC R7G?
All S15GC R7G units undergo pre-shipment inspection (PSI). If there is an issue with S15GC R7G, 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 S15GC R7G part is unused and in its original packaging.
Return procedure for S15GC R7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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