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Semtech Corporation SMDA05CN-5.TBT
- Part No.:
- SMDA05CN-5.TBT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SMDA05CN-5.TBT.pdf
- Description:
- TVS DIODE 5VWM 11VC 8-SO
- Quantity:
- Payment:
- Shipping:
Inventory:9,787
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Product details
Overview
SMDA05CN-5.TBT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of single 22V I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, 20mΩ dynamic resistance, and 175pF junction capacitance - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the SMDA05CN-5.TBT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature and current, low dynamic resistance for minimal voltage overshoot, DFN-6 package layout compatibility, and compliance with IEC 61000-4-2/4-4/4-5 surge standards in high-reliability embedded interfaces.
Technical Context
The SMDA05CN-5.TBT implements a surge-rated FET shunt architecture activated by a precision trigger circuit, enabling near-constant clamping voltage independent of peak pulse current magnitude - unlike conventional TVS diodes whose VC rises linearly with IPP due to fixed RDYN. Its operation relies on voltage-controlled switching rather than avalanche breakdown.
Clamping remains stable from −40°C to +125°C, with <±0.5V variation across temperature at 40A, and maintains 27.5–28V VC under both 1.2/50μs + 8/20μs combination waveforms (RS = 2Ω) and 8/20μs surges alone - critical for protecting USB PD controllers and load switches where VBUS transients must stay below 30V damage thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage on protected line without leakage or degradation. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - ensures downstream ICs (e.g., USB PD controllers) remain below absolute maximum ratings during surge events. |
| Peak Pulse Current | 40A (8/20μs) - supports compliance with IEC 61000-4-5 Level 4 industrial surge immunity (±1kV, RS = 42Ω). |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements for connector-facing protection. |
| Dynamic Resistance | 20mΩ - enables flat clamping response; reduces voltage overshoot rise time and improves energy handling vs. TVS diodes. |
| Junction Capacitance | 175pF at 22V, 1MHz - compatible with low-speed power/data lines (e.g., VBUS, CC, SBU); not suitable for >100MHz signal paths. |
Pinout & Package
Package: DFN-6 (1.6mm × 1.6mm × 0.55mm), RoHS-compliant, UL 94V-0 molding compound, lead-free finish, tape-and-reel packaging (3,000 pcs/reel). Pin 1 marked with laser dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three pins must be connected to minimize inductance and maximize 40A capability. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS, load switch input); parallel connection of all three pins ensures uniform current sharing and thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies <±0.5V from −40°C to +125°C and <±0.5V across 1–40A pulse range - eliminates thermal derating uncertainty in industrial environments. |
| FET-based shunt topology | Replaces avalanche diode with low-RDS(on) MOSFET triggered by precision reference - avoids junction heating and enables repeatable 40A surge survival. |
| Low dynamic resistance | 20mΩ measured between 1A and 40A (8/20μs) - minimizes IR drop during surge, reducing peak overvoltage beyond VC specification. |
| High-energy EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz bursts) - protects against repetitive fast transients in motor drives and PLC I/O modules. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20V–22V VBUS lines in USB-C receptacles exposed to ESD, lightning-induced surges, and hot-plug transients. IC Role / Device Role / Timing Role: Front-end transient shunt placed between connector and USB PD controller or load switch input. Use Value: Maintains 27.5–28V clamping at full 40A surge and across −40°C to +125°C - prevents PD controller latch-up or gate oxide damage during field operation. |
Use Scenario: Safeguarding enable inputs and VIN terminals of industrial-grade load switches (e.g., HS2950P) in remote meters and robotics. IC Role / Device Role / Timing Role: Primary EOS barrier upstream of internal FET gate drivers and overvoltage protection circuits. Use Value: Limits transient voltage to <28V, staying below typical 30V FET drain-source breakdown - avoids destructive failure during 1.2/50μs surge events. |
| IoT Device Power Rail Protection | Storage Device VCC Line Protection |
|
Use Scenario: Securing 22V auxiliary rails in battery-powered IoT gateways subjected to ESD during field servicing or connector mating. IC Role / Device Role / Timing Role: Standalone rail protector with no external bias or control signals required - operates autonomously on overvoltage detection. Use Value: Delivers ±30kV ESD robustness in 1.6mm × 1.6mm footprint - enables compact, sealed enclosure designs without sacrificing surge margin. |
Use Scenario: Shielding 22V backup power inputs in NVMe SSDs and enterprise storage controllers from board-level EOS during hot-swap events. IC Role / Device Role / Timing Role: Low-capacitance (175pF), low-leakage (<600nA @ 22V) protector preserving signal integrity on always-on power rails. Use Value: Enables reliable 40A surge suppression without adding significant RC time constant to power-up sequencing or brownout recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | Identical electrical specs, same DFN-6 package, identical marking (T22XX), and shared Semtech datasheet - functionally identical part number variant. | No functional difference; used interchangeably in USB-C and industrial designs per Semtech ordering documentation. | Select TDS2211P.C when sourcing directly from Semtech or authorized distributors with full traceability to Rev 2.5 datasheet. |
| uClamp2411ZA.TCT | 24V working voltage, ±30kV ESD, but lower 20A IPP (8/20μs) and higher 33V clamping at 20A - uses standard TVS architecture, not FET-shunt. | Suitable for CC/SBU lines in USB-C where lower current rating suffices; not recommended for 22V VBUS or load switch inputs requiring 40A. | Choose uClamp2411ZA.TCT only for secondary signal-line protection where clamping stability and 40A capability are not required. |
Compared with TDS2211P.C (identical spec) and uClamp2411ZA.TCT (lower IPP, higher VC), SMDA05CN-5.TBT delivers guaranteed 40A surge handling with flat 27.5–28V clamping - making it the sole option among these three for primary 22V bus protection in USB PD and industrial load switch applications.
Availability
SMDA05CN-5.TBT is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch front-ends, and IoT device power rail protection requiring stable component supply, long-term lifecycle support, and guaranteed IEC 61000-4-2/4-4/4-5 compliance.
Supply support for SMDA05CN-5.TBT 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 analog and mixed-signal ICs for precision sensing, protection, and signal integrity - with leadership in transient suppression and high-reliability interface solutions.
The SMDA05CN-5.TBT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-energy EOS applications where clamping voltage stability across temperature and current is critical.
FAQ
What is the maximum continuous operating voltage for SMDA05CN-5.TBT?
The SMDA05CN-5.TBT has a reverse stand-off voltage (VRWM) of 22V, meaning it can continuously block up to 22V DC without significant leakage or conduction. This makes it suitable for 20V–22V nominal power rails such as USB PD VBUS and industrial 24V auxiliary supplies. Operation above 22V risks premature triggering or accelerated degradation.
Does SMDA05CN-5.TBT require any external bias or control circuitry?
No, the SMDA05CN-5.TBT operates autonomously with no external bias, enable signals, or configuration pins. Its internal trigger circuit activates the shunt FET when transient voltage exceeds the breakdown threshold - making it a true plug-and-play solution ideal for space-constrained PCB layouts where simplicity and reliability are paramount.
How does SMDA05CN-5.TBT differ from standard TVS diodes in surge response?
Unlike standard TVS diodes that exhibit rising clamping voltage with increasing peak pulse current (VC = VBR + IPP × RDYN), the SMDA05CN-5.TBT uses a FET-shunt architecture that maintains ~27.5–28V clamping from 1A to 40A and across −40°C to +125°C - eliminating thermal derating uncertainty and ensuring consistent protection margins in real-world conditions.
Can SMDA05CN-5.TBT be used on high-speed data lines like USB SuperSpeed or PCIe?
No, the SMDA05CN-5.TBT is not suitable for high-speed data lines due to its 175pF junction capacitance, which would severely degrade signal integrity above ~100MHz. It is intended exclusively for power rails and low-speed control lines (e.g., VBUS, CC, SBU, load switch EN/VIN). For SuperSpeed lanes, Semtech recommends RClamp3371ZC (<0.25pF).
What is the recommended PCB layout for optimal performance of SMDA05CN-5.TBT?
Place SMDA05CN-5.TBT as close as possible to the protected connector. Connect all three IN pins (4,5,6) via a single short, wide trace to the protected line, and tie all three GND pins (1,2,3) directly to a solid ground plane using multiple vias. Avoid thermal relief on GND pads and minimize trace inductance - this preserves 40A surge capability and ensures sub-30V clamping under worst-case transients.
SMDA05CN-5.TBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- SMDACN-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 5
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 11V
- Current - Peak Pulse (10/1000µs):
- 20A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 350pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
SMDA05CN-5.TBT FAQ
1.How can I place an order for SMDA05CN-5.TBT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDA05CN-5.TBT 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 SMDA05CN-5.TBT reliable?
The price and inventory of SMDA05CN-5.TBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDA05CN-5.TBT is usually 5 days.
3.What payment methods are accepted for SMDA05CN-5.TBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDA05CN-5.TBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDA05CN-5.TBT?
SMDA05CN-5.TBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDA05CN-5.TBT 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 SMDA05CN-5.TBT?
For technical support, including SMDA05CN-5.TBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDA05CN-5.TBT requirements.
6.How does Aetrix verify that SMDA05CN-5.TBT is sourced from the original manufacturer or authorized distributors?
All SMDA05CN-5.TBT 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 SMDA05CN-5.TBT meets industry standards.
7.What is the process for return or replacement of SMDA05CN-5.TBT?
All SMDA05CN-5.TBT units undergo pre-shipment inspection (PSI). If there is an issue with SMDA05CN-5.TBT, 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 SMDA05CN-5.TBT part is unused and in its original packaging.
Return procedure for SMDA05CN-5.TBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDA05CN-5.TBT Tags
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Diodes Incorporated
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