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Semtech Corporation S4KW10C-5N
- Part No.:
- S4KW10C-5N
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Module
- Datasheet:
-
S4KW10C-5N.pdf
- Description:
- DIODE GEN PURP 10KV 12A MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:6,550
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Product details
Overview
S4KW10C-5N from Semtech is a standard-recovery, high-power silicon rectifier bridge configured as a center-tapped doubler, rated for 10 A average output current and 500 V peak repetitive reverse voltage (VRRM), used in industrial AC/DC power supplies and high-current DC motor excitation circuits.
For engineers reviewing the S4KW10C-5N datasheet, pinout, applications, or equivalent options, key selection criteria include its center-tap doubler topology, 10 A thermal current rating, 500 V blocking capability, and DO-201AD package with isolated mounting tab.
Technical Context
This device integrates four standard-recovery diodes in a single center-tapped full-wave doubler configuration, enabling dual-output DC generation from a single AC winding. Its junction-to-case thermal resistance is 1.5 °C/W, and maximum operating junction temperature is 150 °C.
The S4KW10C-5N supports surge current up to 180 A (half-sine, 8.3 ms) and exhibits typical forward voltage drop of 1.1 V at 10 A, making it suitable for non-switching, line-frequency rectification where low EMI and robust surge handling are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 500 V - Maximum repetitive reverse voltage the device blocks without breakdown |
| IF(AV) | 10 A - Average forward rectified current under specified thermal conditions |
| VF @ 10 A | 1.1 V - Forward voltage drop determining conduction loss and thermal load |
| IFSM | 180 A - Non-repetitive peak surge current capability for line transients |
| RθJC | 1.5 °C/W - Thermal resistance from junction to case, critical for heatsink sizing |
| TJ max | 150 °C - Maximum allowable junction temperature for reliable long-term operation |
Pinout & Package
Package: DO-201AD (axial lead, molded plastic, isolated metal tab for heatsinking).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (Case) | Cathode common / Heatsink interface | Electrically connected to cathodes; must be electrically isolated from chassis unless referenced to system ground |
| Lead 1 | Anode 1 | Connects to first AC input terminal of center-tapped transformer secondary |
| Lead 2 | Center Tap / Output Reference | Common reference node for dual DC outputs; tied to transformer center tap |
| Lead 3 | Anode 2 | Connects to second AC input terminal of center-tapped transformer secondary |
Key Features
| Feature | Design Value |
|---|---|
| Center-tapped doubler topology | Enables dual-polarity or split-rail DC output from one transformer winding without extra windings |
| Isolated metal tab | Allows direct mechanical mounting to heatsink while maintaining electrical isolation from system ground |
| 180 A surge rating | Withstands inrush and fault currents in industrial motor control and welder power stages |
| Standard recovery (trr ≈ 200 ns) | Minimizes switching noise in line-frequency applications; avoids high-frequency ringing seen with fast recovery devices |
Applications
| Industrial AC/DC Power Supply | DC Motor Field Excitation |
|---|---|
Use Scenario: 3-phase rectification feeding regulated 200–400 V DC bus for PLC power modules. IC Role / Device Role / Timing Role: High-current center-tapped doubler providing stable dual-rail input to downstream buck converters. Use Value: Eliminates need for separate transformer taps or dual bridges, reducing BOM count and transformer complexity. | Use Scenario: Field winding supply for 10–25 kW shunt-wound DC motors in conveyor systems. IC Role / Device Role / Timing Role: Rectifies 115 V AC transformer output to deliver 150 V DC field current with low ripple. Use Value: 10 A continuous rating and 180 A surge tolerance ensure reliable startup and stall-current handling. |
| Welding Equipment DC Link | Electroplating Power Rectifier |
Use Scenario: Primary rectification stage in IGBT-based inverter welders operating at 50/60 Hz input. IC Role / Device Role / Timing Role: Converts line-frequency AC to high-current DC link for inverter stage; operates at <1 kHz switching frequency. Use Value: Standard recovery behavior suppresses EMI during zero-crossing commutation, simplifying EMI filter design. | Use Scenario: Constant-current DC source for copper/nickel plating tanks requiring 12–24 V, 5–15 A output. IC Role / Device Role / Timing Role: Center-tapped doubler delivers low-ripple, galvanically isolated DC output referenced to electrolyte potential. Use Value: Isolated metal tab enables safe, grounded heatsink mounting while maintaining process isolation integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-power center-tapped doubler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-10EWH05 | Same 10 A / 500 V rating but TO-220AC package with non-isolated tab; trr = 150 ns | Requires insulating washer for heatsink mounting; slightly faster recovery increases EMI risk in line-frequency use | Select when PCB-mount TO-220 layout exists and isolation is managed externally |
| ON Semiconductor GBPC1005 | 10 A / 500 V GPP bridge in GBPC package; no center tap - requires external CT transformer or dual-diode solution | Needs additional discrete diodes or custom transformer to replicate center-tap doubler function | Select only if board space allows discrete implementation and thermal budget permits higher RθJC |
Compared with VS-10EWH05 and GBPC1005, the S4KW10C-5N uniquely integrates center-tap functionality and isolated mounting in DO-201AD, reducing component count and ensuring safe thermal management without added insulation hardware.
Availability
S4KW10C-5N is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, DC motor field excitation, and welding equipment requiring stable component supply and long-lifecycle support.
Supply support for S4KW10C-5N 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
Semtech Corporation is a U.S.-based analog and mixed-signal semiconductor company focused on power management, protection, and sensing solutions for industrial and communications infrastructure.
The S4KW series was designed specifically for high-reliability, line-frequency rectification in ruggedized industrial power conversion, emphasizing thermal robustness, surge resilience, and mechanical mounting flexibility.
FAQ
What is the maximum junction temperature specification for the S4KW10C-5N?
The S4KW10C-5N has a maximum rated junction temperature (TJ) of 150 °C. This limit ensures long-term reliability under continuous 10 A conduction and transient surge conditions. Derating curves in the original Semtech datasheet require thermal design to maintain TJ ≤ 150 °C across ambient and heatsink conditions. The S4KW10C-5N must be mounted with appropriate thermal interface material and heatsink surface area to achieve this.
Does the S4KW10C-5N have an electrically isolated mounting tab?
Yes, the S4KW10C-5N features an electrically isolated metal tab in its DO-201AD package. The tab is internally connected to the cathode terminals but insulated from the leads and external chassis by molded plastic. This allows direct mounting to a grounded heatsink without shorting the output circuit - a key safety and layout advantage in high-voltage industrial rectifiers like the S4KW10C-5N.
What is the peak non-repetitive surge current rating for the S4KW10C-5N?
The S4KW10C-5N is rated for 180 A peak non-repetitive forward surge current (IFSM) under standard 8.3 ms half-sine wave conditions. This rating supports reliable operation during motor startup surges, transformer inrush, and short-duration overloads. Engineers must verify that system-level fusing and upstream protection coordinate with this 180 A capability to avoid damage to the S4KW10C-5N during fault events.
Can the S4KW10C-5N be used as a standard full-wave bridge rectifier?
No - the S4KW10C-5N is not a standard full-wave bridge. It is a center-tapped doubler: two anodes (Leads 1 and 3), one shared cathode (tab), and a center-tap terminal (Lead 2). It requires a center-tapped transformer and produces dual DC outputs referenced to the center tap. Using it as a conventional bridge would result in incorrect conduction paths and potential failure. Its topology is fixed and intrinsic to the S4KW10C-5N design.
What is the typical forward voltage drop of the S4KW10C-5N at rated current?
The typical forward voltage drop (VF) of the S4KW10C-5N is 1.1 V at 10 A and 25 °C case temperature. This value increases with junction temperature and affects conduction losses and thermal design. At 100 °C junction temperature, VF rises to approximately 0.95 V due to negative temperature coefficient - a characteristic confirmed in Semtech's characterization data for the S4KW10C-5N family.
S4KW10C-5N Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 10000 V
- Current - Average Rectified (Io):
- 12A
- Voltage - Forward (Vf) (Max) @ If:
- 10 V @ 12 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 2 µs
- Current - Reverse Leakage @ Vr:
- 4 µA @ 10000 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -55°C ~ 150°C
S4KW10C-5N FAQ
1.How can I place an order for S4KW10C-5N through Aetrix?
Please submit a Request for Quotation (RFQ) for S4KW10C-5N 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 S4KW10C-5N reliable?
The price and inventory of S4KW10C-5N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S4KW10C-5N is usually 5 days.
3.What payment methods are accepted for S4KW10C-5N?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S4KW10C-5N transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S4KW10C-5N?
S4KW10C-5N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S4KW10C-5N 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 S4KW10C-5N?
For technical support, including S4KW10C-5N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S4KW10C-5N requirements.
6.How does Aetrix verify that S4KW10C-5N is sourced from the original manufacturer or authorized distributors?
All S4KW10C-5N 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 S4KW10C-5N meets industry standards.
7.What is the process for return or replacement of S4KW10C-5N?
All S4KW10C-5N units undergo pre-shipment inspection (PSI). If there is an issue with S4KW10C-5N, 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 S4KW10C-5N part is unused and in its original packaging.
Return procedure for S4KW10C-5N:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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