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Semtech Corporation SBMA4F
- Part No.:
- SBMA4F
- Manufacturer:
- Semtech Corporation
- Category:
- Bridge Rectifiers
- Package:
- -
- Datasheet:
-
SBMA4F.pdf
- Description:
- BRIDGE RECT 1PHASE 400V 1.5A
- Quantity:
- Payment:
- Shipping:
Inventory:5,433
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Product details
Overview
TDS2211P 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, and stable 27.5–28V clamping voltage across temperature and current range-used in USB Type-C PD bus protection and load switch input safeguarding.
For engineers reviewing the TDS2211P datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under 40A surge, DFN-6 thermal and layout performance, 175pF junction capacitance at 22V, and compatibility with industrial and portable power delivery systems requiring robust EOS resilience without voltage derating.
Technical Context
The TDS2211P employs 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 threshold. Unlike conventional TVS diodes, its clamping voltage remains nearly constant due to decreasing RDS(on) under increasing IPP.
It delivers 1120W peak pulse power (8/20μs), maintains ≤600nA reverse leakage at 22V, and exhibits 20mΩ dynamic resistance measured between 1A and 40A-enabling reliable protection for 22V buses in USB PD, IoT, and industrial equipment where temperature-stable clamping is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage of protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave) - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold during surge events. |
| Peak Pulse Current | 40A (8/20μs) - supports compliance with IEC 61000-4-5 ±1kV surge testing on 42Ω source impedance lines. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for minimal signal distortion on 22V power rails but not suitable for high-speed data lines. |
| ESD Withstand | ±30kV contact & air per IEC 61000-4-2 - exceeds automotive and industrial ESD immunity requirements for front-end interfaces. |
| Dynamic Resistance | 20mΩ - enables flat clamping behavior across current range, unlike TVS diodes whose VC rises linearly with IPP. |
| Operating Temp. | −40°C to +125°C - guarantees stable clamping and leakage performance across extended industrial temperature range. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, Pb-free, RoHS-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 pins 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 ensures uniform current distribution and optimal 40A surge capability. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Replaces traditional TVS with active shunt architecture, delivering flat clamping voltage independent of surge amplitude or temperature. |
| Stable clamping over temperature | Clamping voltage remains 27.5–28V from −40°C to +125°C - eliminates design margin inflation needed for TVS thermal drift. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) enables single-device protection against lightning-induced surges per IEC 61000-4-5. |
| Low dynamic resistance | 20mΩ RDYN ensures minimal IR drop during 40A transients, preserving voltage integrity on protected 22V bus. |
| Compact DFN footprint | 1.6mm × 1.6mm area saves >50% board space vs. comparable SO-8 or SOT-23 TVS solutions while maintaining thermal robustness. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–22V VBUS lines in USB-C receptacles exposed to ESD, lightning surges, and hot-plug transients. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector, shunting EOS energy to GND before it reaches PD controller or power switch. Use Value: Maintains 27.5–28V clamping at full 40A surge and across −40°C to +125°C - prevents overvoltage damage to sensitive USB PD ICs without thermal derating. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters and robotics. IC Role / Device Role / Timing Role: Primary front-end protector absorbing EOS events upstream of internal FETs, preventing gate oxide rupture or drain-source avalanche failure. Use Value: Limits clamping voltage below 30V - well under typical 35–40V absolute max ratings of load switch inputs - enabling reliable operation in harsh environments. |
| IoT Device Power Rail Protection | Storage Device 22V Supply Line Protection |
Use Scenario: Securing 22V auxiliary power rails in battery-powered edge sensors and wireless gateways subject to field ESD and induced surges. IC Role / Device Role / Timing Role: Solid-state EOS suppressor replacing bulkier MOV/TVS stacks, integrated near power entry point with minimal PCB real estate. Use Value: Delivers ±30kV ESD immunity and 40A surge handling in 1.6mm × 1.6mm footprint - extends field reliability without compromising compact form factor. |
Use Scenario: Protecting 22V supply inputs of NVMe SSD enclosures and enterprise storage backplanes against system-level surges. IC Role / Device Role / Timing Role: High-energy transient clamp on main power rail, coordinated with low-capacitance TVS on data lanes (e.g., RClamp3371ZC). Use Value: Ensures sustained 22V rail integrity during 1.2/50μs + 8/20μs combo-wave surges - prevents brownout, latch-up, or permanent damage to storage controller ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Standard unidirectional TVS diode; clamping voltage rises to ~42V at 40A (8/20μs), dynamic resistance ~0.5Ω, no temperature stability. | Limited to lower-energy transients; requires larger voltage margin for same protection level; unsuitable for high-temp industrial use. | Choose SMAJ22A only if cost is primary constraint and clamping voltage >35V is acceptable for protected ICs. |
| SP1003-220K | Bi-directional TVS array; 22V working voltage, 30A (8/20μs), clamping ~36V; higher capacitance (350pF), no FET-based flat clamping. | Better for bidirectional signal lines; inadequate for 40A single-line power rail protection; lacks thermal stability. | Select SP1003-220K only for differential or dual-rail protection where bidirectionality is required and 30A rating suffices. |
Compared with SMAJ22A and SP1003-220K, the TDS2211P provides superior 40A surge handling, flat 27.5–28V clamping across temperature, and FET-based architecture that avoids voltage derating-making it uniquely suited for 22V power rail protection in USB PD and industrial load switch applications where reliability under thermal stress is critical.
Availability
TDS2211P is available at Aetrix Electronics and suitable for USB Type-C PD designs, industrial load switch implementations, and IoT power rail protection requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for TDS2211P 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 RF applications.
The TDS2211P belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-voltage, high-energy EOS protection scenarios where clamping stability and temperature independence are essential.
FAQ
What is the primary protection function of the TDS2211P?
The TDS2211P functions as a transient diverting suppressor that uses a surge-rated FET and precision trigger circuit to shunt high-energy EOS events-such as ESD, lightning surges, and switching transients-to ground. Unlike TVS diodes, it maintains a stable 27.5–28V clamping voltage across its full 40A (8/20μs) surge rating and −40°C to +125°C operating range, making the TDS2211P ideal for protecting 22V power rails in USB PD and industrial systems.
Can the TDS2211P be used on high-speed data lines like USB SuperSpeed or PCIe?
No, the TDS2211P is not suitable for high-speed data lines due to its 175pF junction capacitance at 22V, which would severely degrade signal integrity. It is designed exclusively for 22V power or low-frequency I/O line protection. For USB SuperSpeed, DP/DM, or PCIe lanes, Semtech recommends low-capacitance devices such as RClamp3371ZC (<0.25pF). The TDS2211P should only be applied to VBUS, CC, or load switch inputs-not data paths.
How does the TDS2211P differ from standard TVS diodes in clamping behavior?
The TDS2211P uses an active FET-based shunt architecture, resulting in near-constant clamping voltage (27.5–28V) across its entire 1–40A surge current range and full temperature span. In contrast, standard TVS diodes follow VC = VBR + IPP × RDYN, causing clamping voltage to rise linearly with current and temperature-e.g., a typical 22V TVS may clamp above 40V at 40A and 125°C. This fundamental difference makes the TDS2211P more predictable and robust for critical 22V rail protection.
What is the correct PCB layout practice for the TDS2211P to achieve rated 40A performance?
To achieve full 40A (8/20μs) surge capability, all three IN pins (4, 5, 6) must be connected via a single low-inductance trace to the protected line, and all three GND pins (1, 2, 3) must connect directly to a solid ground plane using multiple vias. The device must be placed within 5mm of the connector or surge entry point. Avoid stubs, splits, or narrow traces-any layout deviation reduces effective surge current handling and compromises the TDS2211P's specified clamping performance.
Is the TDS2211P compliant with industry safety and environmental standards?
Yes, the TDS2211P is RoHS/WEEE compliant, halogen-free, and features UL 94V-0 flammability-rated molding compound. It meets IEC 61000-4-2 (±30kV ESD), IEC 61000-4-4 (±4kV EFT), and IEC 61000-4-5 (40A 8/20μs, ±1kV 1.2/50μs) immunity standards. Its Pb-free lead finish and tape-and-reel packaging (3,000 units per 7″ reel) align with global manufacturing and sustainability requirements for the TDS2211P.
SBMA4F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 400 V
- Current - Average Rectified (Io):
- 1.5 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Current - Reverse Leakage @ Vr:
- 2 µA @ 400 V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SBMA4F FAQ
1.How can I place an order for SBMA4F through Aetrix?
Please submit a Request for Quotation (RFQ) for SBMA4F 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 SBMA4F reliable?
The price and inventory of SBMA4F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBMA4F is usually 5 days.
3.What payment methods are accepted for SBMA4F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBMA4F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBMA4F?
SBMA4F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBMA4F 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 SBMA4F?
For technical support, including SBMA4F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBMA4F requirements.
6.How does Aetrix verify that SBMA4F is sourced from the original manufacturer or authorized distributors?
All SBMA4F 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 SBMA4F meets industry standards.
7.What is the process for return or replacement of SBMA4F?
All SBMA4F units undergo pre-shipment inspection (PSI). If there is an issue with SBMA4F, 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 SBMA4F part is unused and in its original packaging.
Return procedure for SBMA4F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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