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Semtech Corporation S1KW96KA-6
- Part No.:
- S1KW96KA-6
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Module
- Datasheet:
-
S1KW96KA-6.pdf
- Description:
- DIODE GEN PURP 96KV 1.5A MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:7,813
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Product details
Overview
S1KW96KA-6 from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and stable 27.5–28V clamping across temperature and current range - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the S1KW96KA-6 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under 40A surge, low dynamic resistance (20mΩ), DFN 1.6×1.6mm 6-lead package footprint, and compatibility with 22V bus systems requiring robust EOS resilience beyond standard TVS diodes.
Technical Context
The S1KW96KA-6 implements a precision-triggered shunt FET architecture: a dedicated trigger circuit detects overvoltage events and activates a low-RDS(on) FET to divert transients directly to ground. Unlike conventional TVS diodes, its clamping voltage remains nearly constant (27.5–28V) from 24A to 40A and across −40°C to +125°C due to FET conduction characteristics.
It operates as a unidirectional, single-line protector with three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3), requiring all six pins to be connected for full 40A rating. Its 175pF junction capacitance at 22V and 1MHz suits medium-speed power/data line applications where low capacitance is not critical but surge energy handling is paramount.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC or RMS operating voltage on protected line without leakage or degradation. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo waveform) - ensures downstream 24V-rated ICs (e.g., USB PD controllers, load switches) remain below damage threshold during surge. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD immunity standards for connector-facing protection. |
| Dynamic Resistance | 20mΩ - enables flat clamping response by minimizing voltage rise (ΔV = I × RDYN) across full surge current range. |
| Junction Capacitance | 175pF at 22V, 1MHz - compatible with USB PD power path and industrial sensor bus lines; avoids signal integrity issues in <100MHz applications. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, Pb-free, RoHS-compliant, UL 94V-0 molding compound. Pin 1 marked with laser dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Low-inductance ground return path; all three must be connected to PCB ground plane via multiple vias to sustain 40A surge current without voltage overshoot. |
| Pins 4, 5, 6 | IN | Parallel-connected input terminals for protected line (e.g., VBUS, load switch input); all three required to achieve rated 40A capability and minimize trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V from 24A to 40A and remains stable across −40°C to +125°C - eliminates thermal derating and simplifies worst-case margin analysis. |
| Surge-rated FET protection element | Replaces traditional pn-junction TVS with sub-0.1Ω RDS(on) shunt FET - dissipates energy in channel rather than junction, enabling higher surge endurance per unit area. |
| Low dynamic resistance | 20mΩ measured between 1A–40A (8/20μs) - ensures minimal voltage overshoot during fast-rising transients, critical for protecting sensitive 24V logic interfaces. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz & 5kHz bursts) - protects against repetitive switching noise in industrial motor drives and PLC I/O modules. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting VBUS line in USB-C receptacles supporting up to 20V/5A PD profiles against lightning-induced surges and hot-plug ESD. IC Role / Device Role / Timing Role: Front-end transient diverter placed immediately after connector, before PD controller and load switch. Use Value: Maintains 27.5–28V clamping at 40A and 125°C - prevents overvoltage damage to 24V-rated PD controllers (e.g., TUSB73x, STUSB4500) where conventional TVS would exceed 38V at same conditions. |
Use Scenario: Shielding input of industrial-grade load switches (e.g., ON Semi NIS5132, TI TPS25982) from EOS events in remote meters and robotics power rails. IC Role / Device Role / Timing Role: Primary surge clamp on VIN node, coordinated with internal OVP and current limiting of the load switch. Use Value: Limits clamping voltage below the 30V absolute maximum rating of typical 24V load switch FETs - avoids gate oxide stress and latch-up during 1kV/42Ω IEC 61000-4-5 surges. |
| IoT Edge Node Power Bus Protection | Storage Device 22V Backup Supply Protection |
|
Use Scenario: Securing 22V auxiliary power inputs in battery-backed IoT gateways exposed to outdoor ESD and induced surges. IC Role / Device Role / Timing Role: Standalone EOS suppressor on primary DC input, upstream of buck converters and PMICs. Use Value: Delivers 1120W peak pulse power handling in 1.6×1.6mm footprint - achieves >3× board space reduction vs. discrete TVS+MOV solutions while maintaining 125°C operation. |
Use Scenario: Safeguarding 22V supercapacitor or LiFePO₄ backup supply inputs in enterprise SSDs and NAS enclosures. IC Role / Device Role / Timing Role: Low-leakage (<600nA at 22V) protector on backup rail, ensuring minimal standby current drain. Use Value: 130–600nA reverse leakage at VRWM = 22V - preserves months-long backup runtime without compromising surge performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech TDS2211P | Same die, identical electrical specs and package - direct manufacturer-recommended replacement with identical marking (T22 code) and reel packaging. | Identical use cases: USB-C PD, load switch input, industrial 22V bus. | Select when sourcing from Semtech-authorized channels with full traceability and lifecycle support. |
| Littelfuse SP1003-02HTG | TVS diode array (not FET-based); 24V VRWM, 35.5V clamping at 20A, 120pF, ±30kV ESD - higher clamping, no current-dependent flat response. | Suitable for lower-energy applications where 40A surge rating is not required; less effective at high temperature or full-rated current. | Choose only if cost sensitivity outweighs clamping stability and thermal performance requirements. |
Compared with S1KW96KA-6, TDS2211P offers identical performance and form factor as a first-source alternative, while SP1003-02HTG provides a lower-cost TVS-based option with higher clamping voltage and reduced surge headroom - making it suitable only for non-critical 22V lines where 40A/125°C operation is not mandated.
Availability
S1KW96KA-6 is available at Aetrix Electronics and suitable for USB Type-C PD designs, industrial load switch front-ends, and IoT edge node power bus protection requiring stable component supply across extended temperature and high-surge environments.
Supply support for S1KW96KA-6 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 fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for power management, protection, sensing, and connectivity.
The S1KW96KA-6 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-reliability 22V power and interface protection applications demanding flat clamping and temperature-stable surge response.
FAQ
What is the exact clamping voltage specification for S1KW96KA-6 at 40A surge current?
The S1KW96KA-6 clamps at 27.6–28V under IEC 61000-4-5 combination waveform (1.2/50μs voltage + 8/20μs current, RS = 2Ω) at 40A peak pulse current. This value is guaranteed across −40°C to +125°C and reflects the device's FET-based architecture delivering near-constant clamping independent of current magnitude - a key differentiator from standard TVS diodes.
Does S1KW96KA-6 require external bias or control signals to operate?
No, the S1KW96KA-6 is fully autonomous and requires no external power, bias, or enable signals. Its internal precision trigger circuit activates the shunt FET automatically when transient voltage exceeds the breakdown threshold (~25–27.9V). All six pins serve only as passive terminals: pins 1–3 are ground, pins 4–6 are input - no configuration or timing dependencies exist.
Can S1KW96KA-6 be used on bidirectional data lines such as USB DP/DM?
No, the S1KW96KA-6 is a unidirectional protector optimized for 22V power or single-ended I/O lines. Its electrical asymmetry (22V stand-off, 27.5V clamping) and 175pF capacitance make it unsuitable for high-speed differential data paths like USB 2.0 DP/DM or USB3 SS lines, where sub-0.3pF devices (e.g., RClamp3371ZC) are required to avoid signal distortion.
What is the recommended PCB layout practice for S1KW96KA-6 to achieve full 40A rating?
To achieve the full 40A peak pulse current rating, all three GND pins (1–3) must connect to a solid ground plane using ≥3 thermal vias each, and all three IN pins (4–6) must be routed as a single low-inductance trace from the protected connector. The device must be placed within 5mm of the entry point, with no stubs or splits - layout deviations increase parasitic inductance and degrade clamping performance.
Is S1KW96KA-6 compliant with RoHS and halogen-free standards?
Yes, the S1KW96KA-6 is Pb-free, halogen-free, and fully compliant with RoHS Directive 2011/65/EU and WEEE Directive 2012/19/EU. Its molding compound meets UL 94V-0 flammability rating, and lead finish is 100% matte tin - confirmed in Semtech's official datasheet Rev 2.5 and material declarations.
S1KW96KA-6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 96000 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 72 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 2 µs
- Current - Reverse Leakage @ Vr:
- 1 mA @ 96000 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -55°C ~ 150°C
S1KW96KA-6 FAQ
1.How can I place an order for S1KW96KA-6 through Aetrix?
Please submit a Request for Quotation (RFQ) for S1KW96KA-6 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 S1KW96KA-6 reliable?
The price and inventory of S1KW96KA-6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1KW96KA-6 is usually 5 days.
3.What payment methods are accepted for S1KW96KA-6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1KW96KA-6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S1KW96KA-6?
S1KW96KA-6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S1KW96KA-6 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 S1KW96KA-6?
For technical support, including S1KW96KA-6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1KW96KA-6 requirements.
6.How does Aetrix verify that S1KW96KA-6 is sourced from the original manufacturer or authorized distributors?
All S1KW96KA-6 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 S1KW96KA-6 meets industry standards.
7.What is the process for return or replacement of S1KW96KA-6?
All S1KW96KA-6 units undergo pre-shipment inspection (PSI). If there is an issue with S1KW96KA-6, 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 S1KW96KA-6 part is unused and in its original packaging.
Return procedure for S1KW96KA-6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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