Semtech Corporation S3BR10
- Part No.:
- S3BR10
- Manufacturer:
- Semtech Corporation
- Category:
- Bridge Rectifiers
- Package:
- -
- Datasheet:
-
S3BR10.pdf
- Description:
- BRIDGE RECT 3PHASE 1KV 2A
- Quantity:
- Payment:

- Shipping:

Inventory:6,762
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Product details
Overview
S3BR10 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), 27.5–28V clamping voltage at 40A, and 20mΩ dynamic resistance. It protects USB Type-C power delivery buses, load switch inputs, and industrial I/O interfaces where stable clamping under temperature and current stress is critical.
For engineers reviewing the S3BR10 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, real-world USB PD and load switch protection use cases, and validated alternative parts with documented functional trade-offs.
Technical Context
The S3BR10 uses a surge-rated FET as its primary protection element, activated by an integrated precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 24–40A (8/20μs) due to decreasing RDS(on) under surge conditions.
It operates from –40°C to +125°C with <600nA reverse leakage at 22V, 175pF junction capacitance at 22V/1MHz, and maintains stable 27.5–28V clamping up to 125°C - a key differentiator versus standard TVS devices whose clamping rises with temperature and current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - supports USB PD bus and industrial 24V-class power rails without derating. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - stays within safe margin below typical 30V+ IC damage thresholds. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements. |
| Dynamic Resistance | 20mΩ - enables low-voltage-drop shunting, minimizing power dissipation during transients. |
| Junction Capacitance | 175pF at 22V/1MHz - suitable for DC power and low-speed signal line protection (not high-speed data). |
| Operating Temp | –40°C to +125°C - qualified for extended-temperature industrial and automotive under-hood environments. |
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 for surge current; all three must be connected to maximize current handling and minimize inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS or load switch input); parallel connection ensures uniform current sharing and optimal clamping. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient shunting | Replaces PN-junction TVS with active switching - enables flat clamping vs. current/temperature. |
| Constant clamping over 24–40A | 27.5–28V range regardless of peak current - eliminates design margin inflation needed for TVS devices. |
| Low dynamic resistance | 20mΩ ensures minimal IR drop during surge - reduces thermal stress and improves reliability. |
| High-temp clamping stability | No clamping voltage drift from –40°C to +125°C - simplifies thermal design validation. |
| Compact DFN footprint | 1.6mm × 1.6mm saves >50% board area vs. SO-8 or SOT-23 TVS solutions with comparable ratings. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–22V VBUS lines in USB-C ports supporting up to 100W PD, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at connector, clamping transients before reaching PD controller or buck converter. Use Value: Maintains 27.5–28V clamping across full temperature range - avoids overvoltage damage to 30V-rated PD controllers even at 125°C ambient. |
Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., HS2950P) in remote meters, robotics, and IoT edge nodes. IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage seen by internal FET gate oxide and drain-source junction. Use Value: Prevents latch-up or permanent failure of load switches during 1kV/42Ω surge events - extends field lifetime in ungrounded installations. |
| Notebook/Tablet DC Power Input Protection | Industrial I/O Module Signal Line Protection |
Use Scenario: Securing 19–22V DC input rails on portable computing devices against accidental adapter misconnection and ESD. IC Role / Device Role / Timing Role: Standalone overvoltage clamp on main power rail, operating in parallel with upstream e-fuse or OVP IC. Use Value: Delivers 40A surge capability in ultra-small footprint - enables thinner chassis designs without sacrificing surge robustness. |
Use Scenario: Protecting 24V-rated analog/digital I/O channels (e.g., RS-485 bias rails, sensor supply lines) in PLC backplanes and factory automation controllers. IC Role / Device Role / Timing Role: Low-leakage (≤600nA) transient suppressor for always-powered industrial interfaces subject to long-term voltage stress. Use Value: Stable 22V working voltage and <1μA total leakage ensure no impact on precision sensor biasing or ADC reference integrity. |
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 manufacturer, identical electrical specs and DFN-6 package - direct functional match for S3BR10. | Identical use cases: USB PD, load switch, 22V industrial rails. | Select when sourcing from Semtech's official channel with full traceability and lifecycle support. |
| uClamp2411ZA | 24V working voltage, ±30kV ESD, but lower 20A IPP rating and higher 33V clamping at 20A - not rated for 40A surges. | Better suited for CC/SBU lines in USB-C; insufficient for VBUS or load switch inputs requiring 40A handling. | Choose only for auxiliary signal lines where lower surge rating is acceptable and tighter capacitance (<0.5pF) is required. |
Compared with TDS2211P and uClamp2411ZA, the S3BR10 delivers identical 40A/28V performance in the same DFN-6 package but may differ in marking, reel packaging, or qualification batch - confirming it as a Semtech-marketed variant of the TDS2211P platform.
Availability
S3BR10 is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch protection circuits, and notebook DC input rails requiring stable component supply, long-term obsolescence management, and guaranteed RoHS/REACH compliance.
Supply support for S3BR10 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 precision sensing, protection, and connectivity.
The S3BR10 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-reliability 20–24V power rail protection applications demanding flat clamping and wide-temperature stability.
FAQ
What is the maximum clamping voltage of the S3BR10 under full-rated surge conditions?
The S3BR10 clamps at 27.5–28V when subjected to a 40A peak pulse current with an 8/20μs waveform and 2Ω source impedance. This value is guaranteed across –40°C to +125°C and remains stable regardless of current magnitude between 24A and 40A - a key advantage over traditional TVS diodes whose clamping rises linearly with current.
Is the S3BR10 pin-compatible with standard TVS diodes in SOT-23 or SO-8 packages?
No - the S3BR10 uses a 6-pin DFN 1.6mm × 1.6mm package with three parallel input pins (4,5,6) and three parallel ground pins (1,2,3). It is not pin-compatible with any 2-pin or 3-pin TVS diode package. PCB layout must follow Semtech's recommended land pattern with multiple vias to ground plane and direct trace routing from connector to device.
Can the S3BR10 be used to protect high-speed data lines like USB SuperSpeed or PCIe?
No - the S3BR10 has 175pF junction capacitance at 22V, which would severely degrade signal integrity on high-speed differential pairs. It is intended exclusively for DC power rails and low-speed control lines (e.g., USB-C CC, load switch EN). For SuperSpeed lanes, Semtech recommends RClamp3371ZC (<0.25pF) instead of the S3BR10.
Does the S3BR10 require external biasing or control signals to operate?
No - the S3BR10 is fully passive and self-triggering. Its internal precision trigger circuit activates the shunt FET automatically when transient voltage exceeds the breakdown threshold (~27.9V). No external power, enable pin, or configuration is needed - it functions immediately upon placement in-circuit.
How does the S3BR10's dynamic resistance affect thermal performance during repeated surges?
With a measured 20mΩ dynamic resistance, the S3BR10 dissipates significantly less power (P = I²R) than TVS diodes with higher RDYN - reducing junction temperature rise per event. This enables higher surge repetition rates and longer operational life in applications like industrial I/O modules exposed to frequent EFT bursts per IEC 61000-4-4.
S3BR10 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):
- 1 kV
- Current - Average Rectified (Io):
- 2 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Current - Reverse Leakage @ Vr:
- 3 µA @ 1000 V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
S3BR10 FAQ
1.How can I place an order for S3BR10 through Aetrix?
Please submit a Request for Quotation (RFQ) for S3BR10 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 S3BR10 reliable?
The price and inventory of S3BR10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3BR10 is usually 5 days.
3.What payment methods are accepted for S3BR10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3BR10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3BR10?
S3BR10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3BR10 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 S3BR10?
For technical support, including S3BR10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3BR10 requirements.
6.How does Aetrix verify that S3BR10 is sourced from the original manufacturer or authorized distributors?
All S3BR10 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 S3BR10 meets industry standards.
7.What is the process for return or replacement of S3BR10?
All S3BR10 units undergo pre-shipment inspection (PSI). If there is an issue with S3BR10, 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 S3BR10 part is unused and in its original packaging.
Return procedure for S3BR10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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