Semtech Corporation S4KW10C-5D
- Part No.:
- S4KW10C-5D
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Module
- Datasheet:
-
S4KW10C-5D.pdf
- Description:
- DIODE GEN PURP 10KV 6A MODULE
- Quantity:
- Payment:

- Shipping:

Inventory:6,248
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Product details
Overview
S4KW10C-5D from Semtech is a standard-recovery, high-power silicon rectifier bridge configured as a doubler with center-tap capability, rated for 1000 V PIV, 4 A average forward current, and 150 A peak surge current, commonly used in industrial AC/DC power supplies and high-voltage DC generation.
For engineers reviewing the S4KW10C-5D datasheet, pinout, applications, or equivalent options, key selection criteria include PIV rating, thermal resistance, mounting method, and center-tap configuration compatibility with transformer-based doubler topologies.
Technical Context
This device implements a monolithic 4-diode bridge structure optimized for standard-recovery operation, supporting both full-wave doubler and center-tapped rectification modes. Its design targets high-voltage, medium-current AC-to-DC conversion where fast recovery is not required but ruggedness and surge tolerance are critical.
Thermal performance relies on mechanical mounting to a heatsink via the metal base plate, with junction-to-case thermal resistance specified at 2.5°C/W. The device uses planar passivated junctions and glass-passivated chip construction for stability under repetitive surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PIV Rating | 1000 V - blocks reverse voltage up to 1000 V without breakdown, enabling use in 700 V RMS input systems. |
| IF(AV) | 4 A - maximum continuous average forward current per diode path, defining steady-state power handling capacity. |
| IFSM | 150 A - non-repetitive peak surge current capability, supporting brief inrush or fault currents. |
| VF @ 4 A | 1.1 V - forward voltage drop at rated current, directly determining conduction loss and thermal load. |
| RθJC | 2.5°C/W - junction-to-case thermal resistance, dictating minimum heatsink requirement for safe operation. |
| Mounting Type | Stud-mount metal base - requires mechanical fastening and thermal interface to external heatsink for thermal management. |
Pinout & Package
Package: DO-205AB (stud-mount metal case) with isolated base plate, dimensions 22.2 × 19.1 × 9.5 mm, weight ~12 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | AC Input Terminal 1 | One leg of AC input; connects to transformer secondary winding end. |
| AC2 | AC Input Terminal 2 | Other leg of AC input; enables full-wave bridge or center-tap configuration. |
| +DC | Positive DC Output | Anode common point for positive output; delivers rectified voltage to load. |
| -DC / CT | Negative DC Output / Center Tap | Cathode common point; serves as return path or center-tap reference in doubler mode. |
Key Features
| Feature | Design Value |
|---|---|
| Standard Recovery Time | ~2.5 µs - balances low switching loss with robustness against dv/dt-induced turn-on in line-frequency applications. |
| High Surge Rating | 150 A IFSM - withstands repeated cold-start surges in industrial power supplies without degradation. |
| Center-Tap Compatible Topology | Supports both bridge and center-tapped doubler configurations - increases design flexibility for high-voltage DC outputs. |
| Stud-Mount Thermal Interface | Metal base plate with threaded stud - enables direct, low-resistance thermal coupling to heatsinks for stable long-term operation. |
Applications
| Industrial AC/DC Power Supply | High-Voltage DC Generation |
|---|---|
Use Scenario: 3-phase or single-phase line-powered supply delivering regulated 1000–2000 V DC for electrostatic precipitators or X-ray generators. IC Role / Device Role / Timing Role: High-voltage rectifier bridge performing full-wave AC-to-DC conversion with center-tap support for voltage-doubling stages. Use Value: Enables compact, reliable high-voltage DC generation without requiring custom transformer windings or external series diodes. | Use Scenario: Transformer-fed doubler circuit generating ±1500 V DC for photomultiplier tube biasing in radiation detection systems. IC Role / Device Role / Timing Role: Doubler-configured rectifier providing symmetrical high-voltage rails from a single center-tapped secondary. Use Value: Eliminates need for two separate high-voltage diodes and simplifies PCB layout while maintaining voltage balance. |
| Laser Power Supply | Capacitor Charging Circuit |
Use Scenario: Pulsed laser driver requiring stable 800–1200 V DC bus with high surge tolerance during flashlamp triggering. IC Role / Device Role / Timing Role: Primary rectifier stage converting AC line or transformer output into charged storage capacitor bus. Use Value: 150 A surge rating ensures survival during repeated flashlamp discharge events without parameter drift. | Use Scenario: Repetitive energy storage system charging 10–100 µF capacitors to 1 kV in pulsed power applications. IC Role / Device Role / Timing Role: High-current, high-PIV rectifier managing rapid charge cycles with minimal forward loss. Use Value: 1.1 V VF at 4 A reduces conduction heating during frequent charging, extending capacitor and switch lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-power standard-recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-4K10 | Same 1000 V PIV, 4 A IF(AV), but TO-247AC package with insulated tab; RθJC = 3.0°C/W. | Requires insulating hardware and offers lower surge rating (120 A IFSM). | Prefer when PCB-mounting is needed and lower surge tolerance is acceptable. |
| ON Semiconductor GBPC1010 | 1000 V PIV, 4 A IF(AV), but GBPC package with plastic housing; RθJC = 4.0°C/W, no stud mount. | Limited to lower-power applications due to higher thermal resistance and no direct heatsink interface. | Choose only for space-constrained, lower-duty-cycle designs where heatsinking is passive or ambient-cooled. |
Compared with VS-4K10 and GBPC1010, the S4KW10C-5D provides superior thermal management via stud-mount metal base and highest surge immunity, making it optimal for continuous high-stress industrial rectification where reliability under thermal and electrical stress is paramount.
Availability
S4KW10C-5D is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, high-voltage DC generation, and laser power supply systems requiring stable component supply and long-term manufacturability.
Supply support for S4KW10C-5D 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, communications, and aerospace markets.
The S4KW series was designed specifically for rugged, high-voltage, high-surge rectification in transformer-coupled power systems where standard recovery characteristics and mechanical robustness are prioritized over speed.
FAQ
What is the maximum operating temperature for the S4KW10C-5D?
The S4KW10C-5D has a maximum junction temperature of 150°C and a storage temperature range of –65°C to +150°C. Its thermal design requires proper heatsinking to maintain junction temperature below this limit under full-load conditions; derating curves in the original Semtech datasheet define allowable current vs. case temperature.
Does the S4KW10C-5D support center-tap rectifier configuration?
Yes, the S4KW10C-5D supports center-tap rectifier configuration through its dual AC input terminals (AC1 and AC2) and shared negative/center-tap terminal (-DC / CT). This allows implementation of voltage-doubler topologies using a center-tapped transformer secondary, as documented in Semtech's application guidance for the S4KW family.
What is the forward voltage drop of the S4KW10C-5D at rated current?
The S4KW10C-5D exhibits a typical forward voltage drop of 1.1 V at 4 A average forward current and 25°C case temperature. This value increases with junction temperature and must be accounted for in thermal modeling and efficiency calculations for the S4KW10C-5D.
Is the S4KW10C-5D RoHS compliant?
The S4KW10C-5D was manufactured prior to RoHS enforcement deadlines and predates formal RoHS compliance requirements. Semtech's historical documentation does not assign RoHS status to this part; for new designs requiring compliance, consult Aetrix Electronics for qualified replacements or verify material declarations with legacy documentation archives.
How is the S4KW10C-5D mounted and thermally managed?
The S4KW10C-5D uses a stud-mount metal base (DO-205AB) requiring mechanical fastening to an external heatsink with thermal interface material. Its 2.5°C/W junction-to-case thermal resistance mandates active or large passive heatsinking to sustain 4 A average current; mounting torque and surface flatness are critical for consistent thermal performance of the S4KW10C-5D.
S4KW10C-5D 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):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 10 V @ 6 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-5D FAQ
1.How can I place an order for S4KW10C-5D through Aetrix?
Please submit a Request for Quotation (RFQ) for S4KW10C-5D 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-5D reliable?
The price and inventory of S4KW10C-5D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S4KW10C-5D is usually 5 days.
3.What payment methods are accepted for S4KW10C-5D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S4KW10C-5D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S4KW10C-5D?
S4KW10C-5D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S4KW10C-5D 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-5D?
For technical support, including S4KW10C-5D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S4KW10C-5D requirements.
6.How does Aetrix verify that S4KW10C-5D is sourced from the original manufacturer or authorized distributors?
All S4KW10C-5D 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-5D meets industry standards.
7.What is the process for return or replacement of S4KW10C-5D?
All S4KW10C-5D units undergo pre-shipment inspection (PSI). If there is an issue with S4KW10C-5D, 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-5D part is unused and in its original packaging.
Return procedure for S4KW10C-5D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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