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Taiwan Semiconductor Corporation S15GCHV7G
- Part No.:
- S15GCHV7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S15GCHV7G.pdf
- Description:
- DIODE GEN PURP 400V 15A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,746
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Product details
Overview
S15GCHV7G from Taiwan Semiconductor is a 15A, 400V glass-passivated surface-mount rectifier in DO-214AB (SMC) package, featuring 1.1V max forward voltage at 15A/25°C, 350A peak surge capability, 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 S15GCHV7G datasheet, S15GCHV7G pinout, S15GCHV7G application, or S15GCHV7G 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 per IEC 61249-2-21.
Technical Context
This single-die standard recovery rectifier operates with a maximum junction temperature of 150°C and supports continuous forward current up to 15A at ambient temperatures ≤75°C (derated above). Its 350A non-repetitive surge rating (8.3ms half-sine) enables robust handling of inductive turn-off transients in DC-DC converters.
The device exhibits low leakage - ≤1µA at 25°C and ≤250µA at 125°C under rated reverse voltage - and a typical junction capacitance of 93pF at 4V reverse bias, supporting stable high-frequency switching behavior without excessive capacitive loading on control circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Continuous Forward Current) | 15 A - supports sustained conduction in high-current output stages of SMPS |
| VRRM (Repetitive Peak Reverse Voltage) | 400 V - blocks up to 400V reverse polarity during off-state in boost/flyback topologies |
| IFSM (Peak Forward Surge Current) | 350 A - withstands short-duration inrush and inductive kickback events |
| VF (Max Forward Voltage @ 15A, 25°C) | 1.1 V - limits conduction loss to ≤16.5W at full load, easing thermal design |
| RθJL (Junction-to-Lead Thermal Resistance) | 8 °C/W - enables efficient heat transfer to PCB copper, critical for high-power SMT layouts |
| IR (Max Reverse Leakage @ 125°C) | 250 µA - ensures minimal standby power loss in high-temperature environments |
| CJ (Junction Capacitance) | 93 pF - minimizes high-frequency switching noise coupling in fast-switching converters |
Pinout & Package
Package: DO-214AB (SMC) - surface-mount plastic case with matte tin-plated leads, UL 94V-0 rated molding compound, cathode indicated by band, weight ≈0.270g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., switch node in buck converter freewheel path) |
| Cathode | Current exit point during forward conduction | Connected to higher-potential rail (e.g., output capacitor positive terminal) |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Enhances long-term reliability and humidity resistance in industrial-grade PCB assemblies |
| Moisture sensitivity level 1 (J-STD-020) | Eliminates bake requirements before reflow, reducing manufacturing overhead |
| RoHS and halogen-free compliance | Meets global environmental regulations including IEC 61249-2-21 for printed board materials |
| High surge current capability (350A) | Provides margin against transient overcurrents without derating in 60Hz line-frequency or SMPS applications |
Applications
| Telecom Power Supplies | Server VRMs |
|---|---|
Use Scenario: Output rectification in 48V intermediate bus converters feeding baseband processing units. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectifier-assisted buck converters. Use Value: 1.1V VF minimizes conduction loss at 15A load, improving efficiency over legacy 1.3V diodes by ~3%. | Use Scenario: Secondary-side rectification in multiphase CPU voltage regulator modules. IC Role / Device Role / Timing Role: High-current freewheel path during low-side FET dead time. Use Value: 350A IFSM handles phase-current imbalance surges without degradation, extending system MTBF. |
| Industrial Motor Drives | Renewable Energy Inverters |
Use Scenario: DC-link freewheeling in 3-phase IGBT gate driver auxiliary supplies. IC Role / Device Role / Timing Role: Clamping diode across bootstrap capacitor charging path. Use Value: 150°C TJ max enables operation in enclosed enclosures without forced air cooling. | Use Scenario: Snubber network rectification in PV string-level inverters operating at 400V nominal DC input. IC Role / Device Role / Timing Role: Reverse-voltage blocking element in passive clamp circuits. Use Value: 400V VRRM matches common PV string voltages while maintaining safety margin per IEC 62109. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1504D | 15A, 400V, TO-220AC package; VF = 1.15V (max); RθJA = 30°C/W | Through-hole mounting; higher thermal resistance requires heatsink for same power dissipation | Preferred where mechanical robustness or manual repairability outweighs SMT density constraints |
| ON Semi MUR1540 | 15A, 400V, DO-214AB; VF = 1.25V (max); IFSM = 200A; RθJL = 10°C/W | Lower surge rating and higher VF increase conduction loss and reduce transient margin | Acceptable for cost-sensitive, non-critical 400V rectification where 350A surge headroom is not required |
Compared with STTH1504D and MUR1540, S15GCHV7G delivers superior thermal performance (RθJL = 8°C/W) and surge resilience (350A) in an SMT-optimized DO-214AB footprint - enabling higher power density and improved reliability in automated production of telecom and server power systems.
Availability
S15GCHV7G is available at Aetrix Electronics and suitable for telecom power supplies, server VRMs, industrial motor drives, and renewable energy inverters requiring stable component supply, J-STD-020 Level 1 moisture handling, and RoHS-compliant SMT rectification.
Supply support for S15GCHV7G 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 telecom markets since 1979.
The S15GC–S15MC series was designed specifically for high-current, surface-mount rectification in switching-mode power conversion - emphasizing low VF, high surge tolerance, and automated assembly compatibility in space-constrained applications.
FAQ
What is the maximum junction temperature rating for S15GCHV7G?
The S15GCHV7G has a maximum junction temperature (TJ) rating of +150°C, allowing reliable operation in high-ambient environments such as enclosed telecom power modules or industrial motor drive cabinets. This rating is validated per absolute maximum ratings table in the official TSC datasheet Version C2102 and aligns with its DO-214AB package's thermal performance characteristics.
Does S15GCHV7G require pre-reflow baking before assembly?
No, S15GCHV7G does not require pre-reflow baking because it is rated Moisture Sensitivity Level 1 per J-STD-020 - the highest reliability level for moisture resistance. This eliminates bake steps in SMT line preparation, reducing process complexity and cycle time for high-volume manufacturing of S15GCHV7G-equipped boards.
What is the marking code visible on the S15GCHV7G device body?
The S15GCHV7G is marked "S15GC" on its body, consistent with Taiwan Semiconductor's ordering nomenclature where "GC" denotes the 400V VRRM variant. The full part number S15GCHV7G includes internal factory and date codes (e.g., "HV7G") per TSC's marking diagram in datasheet page 4, but the primary functional identifier remains "S15GC".
How does the forward voltage of S15GCHV7G compare to similar 15A rectifiers?
S15GCHV7G specifies a maximum forward voltage (VF) of 1.1V at 15A and 25°C - matching or exceeding industry benchmarks like STTH1504D (1.15V) and outperforming MUR1540 (1.25V). This lower VF directly reduces conduction losses, especially critical in high-efficiency server VRMs where even 0.15V reduction lowers thermal load by ~2.25W at full load.
Is S15GCHV7G certified as halogen-free and RoHS compliant?
Yes, S15GCHV7G is both RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet. These certifications apply to the entire device - including molding compound, lead finish, and internal die construction - ensuring compliance with EU WEEE, China RoHS, and JEITA standards for environmentally restricted substances.
S15GCHV7G 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
S15GCHV7G FAQ
1.How can I place an order for S15GCHV7G through Aetrix?
Please submit a Request for Quotation (RFQ) for S15GCHV7G 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 S15GCHV7G reliable?
The price and inventory of S15GCHV7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S15GCHV7G is usually 5 days.
3.What payment methods are accepted for S15GCHV7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S15GCHV7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S15GCHV7G?
S15GCHV7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S15GCHV7G 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 S15GCHV7G?
For technical support, including S15GCHV7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S15GCHV7G requirements.
6.How does Aetrix verify that S15GCHV7G is sourced from the original manufacturer or authorized distributors?
All S15GCHV7G 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 S15GCHV7G meets industry standards.
7.What is the process for return or replacement of S15GCHV7G?
All S15GCHV7G units undergo pre-shipment inspection (PSI). If there is an issue with S15GCHV7G, 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 S15GCHV7G part is unused and in its original packaging.
Return procedure for S15GCHV7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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