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Semtech Corporation S3BR6
- Part No.:
- S3BR6
- Manufacturer:
- Semtech Corporation
- Category:
- Bridge Rectifiers
- Package:
- -
- Datasheet:
-
S3BR6.pdf
- Description:
- BRIDGE RECT 3PHASE 600V 2A
- Quantity:
- Payment:
- Shipping:
Inventory:6,895
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Product details
Overview
S3BR6 from Semtech is a transient diverting suppressor 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), 27.5–28V clamping voltage at 40A, and ultra-low 20mΩ dynamic resistance. It protects USB PD, USB Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the S3BR6 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, temperature-stable clamping behavior, and direct alternatives for EOS-critical bus protection designs.
Technical Context
The S3BR6 uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events and rapidly shunts transient current to ground. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 1A–40A (8/20μs) due to decreasing RDS(on) under surge conditions.
It operates from −40°C to +125°C with stable 27.5–28V clamping at 40A, 22V reverse stand-off voltage, and only 175pF junction capacitance at 22V - enabling use on high-speed power rails without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches USB PD 20V nominal + margin; ensures no leakage or conduction during normal operation. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - stays below 30V damage threshold of common 30V-rated load switches and PD controllers. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements without external staging. |
| Dynamic Resistance | 20mΩ - enables flat clamping curve; reduces voltage overshoot during fast-rising transients vs. TVS diodes. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough to avoid degrading rise/fall times on 20V power rails with typical trace lengths. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish. Pin 1 marked with laser dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path; all three must be connected to minimize inductance and maximize 40A surge handling. |
| 4, 5, 6 | IN | Protected line input (e.g., USB VBus); parallel connection ensures uniform current sharing and thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based clamping architecture | Delivers <28V clamping across full 1–40A surge range - avoids voltage runaway seen in TVS diodes. |
| Temperature-stable clamping | Clamping voltage varies <0.5V from −40°C to +125°C - eliminates derating for high-temp industrial environments. |
| Low dynamic resistance | 20mΩ enables sub-1V voltage drop at 40A - minimizes power dissipation and localized heating during surge events. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns) - protects against repetitive burst noise in motor drives and PLC I/O modules. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20V USB PD VBus lines from lightning-induced surges and connector hot-plug ESD. IC Role / Device Role / Timing Role: Transient diverting suppressor placed at connector entry point to clamp overvoltage before reaching PD controller and load switch. Use Value: Maintains 27.5–28V clamping at 40A - stays safely below 30V absolute maximum rating of common PD controllers like STUSB4500 or TUSB7320. | Use Scenario: Shielding HS2950P or similar e-fuse ICs from EOS during field deployment in remote meters and robotics. IC Role / Device Role / Timing Role: Primary front-end surge protector on VIN rail; absorbs >95% of transient energy before it reaches the load switch's internal FET. Use Value: Prevents gate oxide damage and latch-up in load switches rated ≤30V by limiting clamped voltage to ≤28V across full temperature range. |
| IoT Edge Node Power Rail Protection | Notebook/Tablet Main Power Input Protection |
Use Scenario: Securing 12–22V DC input rails in battery-powered IoT gateways exposed to unregulated wall adapters and docking surges. IC Role / Device Role / Timing Role: Single-device solution replacing multi-stage TVS+MOV networks - simplifies BOM and PCB area. Use Value: 1.6mm × 1.6mm footprint saves >60% board space vs. discrete 22V TVS arrays; supports compact 2-layer designs. | Use Scenario: Hardening 20V system power input in thin-and-light notebooks against accidental AC adapter misconnection or ESD from user ports. IC Role / Device Role / Timing Role: Standalone EOS protector on main PMIC input rail - eliminates need for secondary crowbar circuits. Use Value: 175pF capacitance avoids compromising 20V rail stability during CPU/GPU load transients - no additional decoupling overhead required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Same device - identical electrical specs, package, and marking; S3BR6 is Semtech's alternate orderable part number for TDS2211P. | No functional difference; used interchangeably in BOMs and schematics. | Select S3BR6 when sourcing from distributors listing Semtech's branded alternate P/N; identical qualification and traceability. |
| uClamp2411ZA | 24V working voltage, lower 20A IPP, higher 33V clamping at 20A, smaller 1.0mm × 0.6mm 2-pin SOD-323 package. | Targeted at CC/SBU lines in USB Type-C, not VBus; insufficient for 40A surge or 22V continuous operation. | Not suitable as direct replacement for S3BR6 - lacks current rating, clamping performance, and thermal robustness for power rail use. |
Compared with TDS2211P (its exact twin) and uClamp2411ZA (a lower-power companion device), S3BR6 uniquely delivers 40A surge capability with 27.5–28V clamping in a 1.6mm × 1.6mm DFN - making it the only Semtech part qualified for 22V USB PD VBus and industrial load switch protection where both energy handling and voltage margin are critical.
Availability
S3BR6 is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT edge node power rails requiring stable component supply, full production traceability, and long-term lifecycle support.
Supply support for S3BR6 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 semiconductors for power management, protection, and signal integrity.
The S3BR6 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-energy EOS applications where stable clamping voltage and temperature resilience are mandatory.
FAQ
What is the exact relationship between S3BR6 and TDS2211P?
S3BR6 is Semtech's alternate orderable part number for the TDS2211P transient diverting suppressor. Both share identical electrical specifications, DFN-6 package dimensions, pinout, marking code (T22), and qualification data. They are functionally and physically interchangeable with no design or layout changes required.
Does S3BR6 require external biasing or control signals to operate?
No, S3BR6 is a fully autonomous protection device. It contains an integrated precision trigger circuit and surge-rated FET - no external power, enable pins, or configuration are needed. It activates automatically when input voltage exceeds ~25V breakdown, clamping transients without any user intervention.
Can S3BR6 be used on high-speed data lines like USB SuperSpeed or PCIe?
No, S3BR6 is not intended for high-speed signal lines. Its 175pF junction capacitance is optimized for 22V power rails, not differential data paths. For USB SS, DP/DM, or PCIe lanes, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25pF), which are specified separately from S3BR6.
What is the maximum continuous operating voltage for S3BR6?
The maximum continuous operating (reverse stand-off) voltage for S3BR6 is 22V. It may be applied to DC rails up to 22V with negligible leakage (<600nA at 22V). Operation above 22V risks premature triggering or accelerated wear; it is not rated for 24V or higher sustained voltages.
How does S3BR6's clamping performance compare to standard TVS diodes at elevated temperatures?
Unlike standard TVS diodes whose clamping voltage rises significantly with temperature, S3BR6 maintains 27.5–28V clamping from −40°C to +125°C. At 125°C, a typical 22V TVS may clamp >38V at 24A - exceeding safe margins for many PD controllers - while S3BR6 holds steady within 0.5V.
S3BR6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Diode Type:
- Three Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 600 V
- Current - Average Rectified (Io):
- 2 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Current - Reverse Leakage @ Vr:
- 3 µA @ 600 V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
S3BR6 FAQ
1.How can I place an order for S3BR6 through Aetrix?
Please submit a Request for Quotation (RFQ) for S3BR6 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 S3BR6 reliable?
The price and inventory of S3BR6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3BR6 is usually 5 days.
3.What payment methods are accepted for S3BR6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3BR6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3BR6?
S3BR6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3BR6 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 S3BR6?
For technical support, including S3BR6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3BR6 requirements.
6.How does Aetrix verify that S3BR6 is sourced from the original manufacturer or authorized distributors?
All S3BR6 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 S3BR6 meets industry standards.
7.What is the process for return or replacement of S3BR6?
All S3BR6 units undergo pre-shipment inspection (PSI). If there is an issue with S3BR6, 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 S3BR6 part is unused and in its original packaging.
Return procedure for S3BR6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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