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Semtech Corporation S3BR2F
- Part No.:
- S3BR2F
- Manufacturer:
- Semtech Corporation
- Category:
- Bridge Rectifiers
- Package:
- -
- Datasheet:
-
S3BR2F.pdf
- Description:
- BRIDGE RECT 3PHASE 200V 2A
- Quantity:
- Payment:
- Shipping:
Inventory:2,971
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Product details
Overview
S3BR2F 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 (8/20μs) peak pulse current handling, 27.5–28V clamping voltage at 40A, and DFN 1.6×1.6×0.55mm 6-lead package - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the S3BR2F datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature and current, low dynamic resistance (<20 mΩ), junction capacitance (175 pF @ 22V), and validated performance under IEC 61000-4-5 ±1kV surge (RS = 42Ω) and IEC 61000-4-4 ±4kV EFT stress.
Technical Context
The S3BR2F uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant (27.5–28V) from 24A to 40A due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C with stable clamping and leakage (<600 nA at 22V), supports unsymmetrical line protection per IEC 61000-4-5, and delivers 1120W peak pulse power (8/20μs). Its functional architecture isolates protection dynamics from junction heating effects typical of PN-junction TVS devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - defines maximum continuous DC bus voltage it can protect without leakage or degradation |
| Clamping Voltage | 27.5–28 V at 40A (8/20μs + 1.2/50μs combo waveform) - ensures protected ICs (e.g., USB PD controllers) remain below damage threshold |
| Peak Pulse Current | 40 A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds Level 4 system-level ESD immunity for external ports |
| Dynamic Resistance | 20 mΩ - enables flat clamping curve and minimizes voltage overshoot during fast-rising transients |
| Junction Capacitance | 175 pF at 22 V, 1 MHz - compatible with 22V power rail protection where signal integrity is secondary to robustness |
| Operating Temp. | –40°C to +125°C - supports deployment in automotive-adjacent industrial and computing environments |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to maximize current sharing and minimize parasitic inductance |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS in USB PD); parallel connection of all three pins required for full 40A rating and optimal thermal distribution |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies <0.5 V across 24–40A surge range - eliminates design margin inflation needed with conventional TVS |
| FET-based shunt topology | Surge energy dissipated via low-RDS(on) channel instead of PN junction - enables stable performance up to +125°C |
| Low dynamic resistance | 20 mΩ measured between 1A–40A - reduces voltage overshoot during sub-100ns ESD events |
| High EFT immunity | ±4 kV per IEC 61000-4-4 (5/50 ns, 5 kHz & 100 kHz bursts) - protects against repetitive switching noise in motor drives and PLCs |
| Small-footprint DFN | 1.6×1.6 mm area - saves >60% board space vs. comparable SO-8 or SOT-23 TVS solutions while maintaining 40A rating |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–22V VBUS lines in USB-C receptacles exposed to lightning-induced surges and hot-plug ESD. IC Role / Device Role / Timing Role: Primary front-end EOS suppressor placed immediately after connector, before load switch or PD controller. Use Value: Maintains 27.5–28V clamping across –40°C to +125°C and 24–40A, preventing damage to downstream HS2950P or similar load switches rated ≤30V absolute max. |
Use Scenario: Safeguarding input terminals of industrial e-fuses and load switches in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Transient shunt device triggered within nanoseconds to clamp surges before they reach internal FET gate oxide. Use Value: Enables use of lower-cost, smaller-footprint load switches by absorbing 1120W peak surge energy without requiring oversized external TVS or derating. |
| IoT Edge Node Power Bus Protection | Storage Device 22V Rail Protection |
|
Use Scenario: Securing 22V auxiliary rails in battery-backed IoT gateways subjected to ESD during field servicing and conducted surges from shared AC adapters. IC Role / Device Role / Timing Role: Standalone EOS protector for non-data, high-voltage auxiliary power paths where low capacitance is not required. Use Value: Delivers ±30kV ESD immunity and 40A surge capability in 2.56 mm² footprint - critical for space-constrained edge enclosures with minimal heatsinking. |
Use Scenario: Protecting 22V supply inputs of NVMe SSD modules and enterprise HDD backplanes against power-rail transients during hot-swap events. IC Role / Device Role / Timing Role: High-energy clamping device placed at board edge to intercept surges before reaching PMICs or storage controllers. Use Value: Stable 27.5–28V clamping prevents latch-up or overvoltage reset in 22V-tolerant storage controllers, even at full 125°C ambient. |
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 die, identical electrical specs and package - direct manufacturer-recommended replacement for S3BR2F; marked "T22" + date code | Identical use cases: USB-C PD, load switch input, 22V rail protection | Select TDS2211P when sourcing from Semtech's official distribution channels with full traceability and warranty coverage |
| SP1003-220K | TVS diode array (22V standoff); higher clamping (~38V at 24A/125°C), fixed RDYN (~0.5Ω), no active trigger circuit | Limited to lower-temp or lower-IPP applications; requires larger layout margin due to voltage rise with temperature/current | Choose SP1003-220K only if cost sensitivity outweighs clamping stability and thermal robustness requirements |
Compared with TDS2211P (identical spec) and SP1003-220K (conventional TVS), the S3BR2F delivers superior thermal stability and flatter clamping - enabling tighter voltage margins in high-temperature industrial designs without sacrificing surge rating.
Availability
S3BR2F is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and 22V IoT power bus protection requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for S3BR2F 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, and signal integrity.
The S3BR2F belongs to Semtech's Transient Diverting Suppressor (TDS) family, engineered to replace conventional TVS diodes in high-energy, high-temperature EOS protection applications where clamping stability is critical.
FAQ
What is the exact clamping voltage specification for S3BR2F at 40A surge current?
The S3BR2F clamps at 27.6–28 V 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 constant-clamp behavior - not a typical TVS diode's linear VC = VBR + IPP × RDYN relationship. The S3BR2F maintains this tight window due to its active trigger and low RDS(on).
Is S3BR2F pin-compatible with standard 6-pin DFN TVS diodes?
No - while the S3BR2F uses a 6-pin DFN 1.6×1.6 mm package, its pinout is functionally asymmetric: pins 1–3 are dedicated GND, and pins 4–6 are parallel-connected IN terminals. Standard TVS diodes in same package often use bidirectional or anode/cathode configurations. PCB layout must follow Semtech's recommendation: short, wide traces connecting all three IN pins together and all three GND pins to a solid ground plane with multiple vias.
Does S3BR2F require external bias or control signals to operate?
No - the S3BR2F is fully passive and self-triggering. It contains an integrated precision trigger circuit and drive circuit that activate the internal shunt FET automatically when transient voltage exceeds its breakdown threshold (~25–27.9 V). No external enable, bias, or configuration is needed - it functions as a drop-in protection component once correctly placed and routed.
Can S3BR2F be used to protect data lines such as USB SuperSpeed or PCIe?
No - the S3BR2F has 175 pF junction capacitance at 22 V, making it unsuitable for high-speed data lines where sub-0.5 pF loading is required. It is designed exclusively for power or low-speed I/O lines (e.g., VBUS, CC, SBU, load switch inputs). For USB SS or DP/DM lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25 pF), not the S3BR2F.
What is the maximum operating temperature and thermal derating behavior of S3BR2F?
The S3BR2F is rated for continuous operation from –40°C to +125°C ambient, with no thermal derating required for clamping voltage or peak pulse current. Its clamping remains stable at 27.5–28 V across the full temperature range, and its 40A (8/20μs) rating applies at +125°C - unlike conventional TVS diodes whose IPP drops significantly above 85°C. This makes the S3BR2F especially valuable in enclosed industrial or automotive-adjacent environments.
S3BR2F 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):
- 200 V
- Current - Average Rectified (Io):
- 2 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Current - Reverse Leakage @ Vr:
- 3 µA @ 200 V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
S3BR2F FAQ
1.How can I place an order for S3BR2F through Aetrix?
Please submit a Request for Quotation (RFQ) for S3BR2F 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 S3BR2F reliable?
The price and inventory of S3BR2F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3BR2F is usually 5 days.
3.What payment methods are accepted for S3BR2F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3BR2F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3BR2F?
S3BR2F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3BR2F 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 S3BR2F?
For technical support, including S3BR2F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3BR2F requirements.
6.How does Aetrix verify that S3BR2F is sourced from the original manufacturer or authorized distributors?
All S3BR2F 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 S3BR2F meets industry standards.
7.What is the process for return or replacement of S3BR2F?
All S3BR2F units undergo pre-shipment inspection (PSI). If there is an issue with S3BR2F, 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 S3BR2F part is unused and in its original packaging.
Return procedure for S3BR2F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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