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Semtech Corporation SMDA05-6.TBT
- Part No.:
- SMDA05-6.TBT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SMDA05-6.TBT.pdf
- Description:
- TVS DIODE 5VWM 11VC 8-SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,963
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Product details
Overview
SMDA05-6.TBT 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), and stable 27.5–28V clamping across temperature and current range - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the SMDA05-6.TBT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under surge, low dynamic resistance (<20 mΩ), junction capacitance (175 pF @ 22V), DFN 1.6×1.6mm package constraints, and compatibility with 22V bus architectures requiring robust EOS resilience without thermal derating penalties.
Technical Context
The SMDA05-6.TBT 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 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 ≤600 nA reverse leakage at 22V, and operates from –40°C to +125°C with stable 27.5–28V clamping at both 24A and 40A surge currents - enabling reliable protection in thermally demanding industrial and portable applications without voltage drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - matches nominal USB PD bus and industrial 24V rail systems without overvoltage stress during normal operation. |
| Clamping Voltage | 27.5–28 V at 40A (8/20μs) - stays within safe margin below typical 30V+ damage thresholds of load switches and PD controllers. |
| Peak Pulse Current | 40 A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial equipment and USB PD interfaces. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds standard ESD immunity requirements for handheld and connector-facing designs. |
| Junction Capacitance | 175 pF @ 22V, 1 MHz - low enough to avoid signal integrity degradation on 22V power rails while supporting fast transient response. |
| Dynamic Resistance | 20 mΩ - ensures minimal IR drop during surge conduction, preserving clamping accuracy and reducing thermal stress. |
| Package | DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead - enables ultra-compact placement near connectors with minimal PCB area and parasitic inductance. |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish, tape-and-reel packaging (3,000 pcs/reel).
| 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 handling and minimize inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS, DC input); parallel connection of all three pins ensures uniform current sharing and optimal surge performance. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Enables flat clamping voltage vs. current/temperature - eliminates linear VC = VBR + IPP×RDYN drift seen in TVS diodes. |
| Low dynamic resistance | 20 mΩ ensures <0.8 V additional drop at 40A, maintaining precise clamping and minimizing thermal dissipation in the device. |
| Stable clamping over temperature | 27.5–28 V clamping maintained from –40°C to +125°C - removes need for derating or worst-case thermal margining in system design. |
| High-energy surge rating | 1120 W peak pulse power supports repeated exposure to IEC 61000-4-5 surges without parameter shift or degradation. |
| Ultra-low leakage | ≤600 nA at 22V reverse bias minimizes standby power loss and avoids false triggering in always-on industrial monitoring circuits. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Front-End Protection |
|---|---|
Use Scenario: Protecting 20–22V VBUS lines in USB-C PD ports against lightning-induced surges and connector ESD events. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at the connector, shunting EOS energy to ground before it reaches the PD controller or e-fuse. Use Value: Maintains 27.5–28V clamping at full 40A surge - prevents overvoltage damage to downstream 30V-rated PD ICs even at 125°C ambient. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) exposed to field wiring transients. IC Role / Device Role / Timing Role: Primary front-end protector absorbing multi-kV surges before they stress the internal FET gate oxide or drain-source junction. Use Value: Clamping stability eliminates thermal runaway risk during repeated surge events - extends load switch lifetime in remote metering and robotics. |
| IoT Device DC Power Rail Protection | Notebook/Tablet 22V Auxiliary Bus Protection |
Use Scenario: Securing 22V auxiliary rails powering cellular modems or sensor hubs in battery-powered IoT edge nodes. IC Role / Device Role / Timing Role: Low-leakage (≤600 nA), low-capacitance (175 pF) protector preserving battery life and avoiding signal coupling on shared power domains. Use Value: Enables compact DFN layout near power entry points - reduces board space by >50% versus discrete TVS + MOV solutions. |
Use Scenario: Protecting secondary 22V rails feeding display backlight drivers or SSD power management ICs in thin client devices. IC Role / Device Role / Timing Role: High-reliability EOS guard for non-USB but similarly stressed 22V domains where thermal cycling and long service life are critical. Use Value: Stable clamping across –40°C to +125°C ensures consistent protection during cold-start and sustained high-power operation. |
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-equivalent marking variant; SMDA05-6.TBT is Semtech's alternate orderable part number for TDS2211P. | Identical use cases: USB-C PD, load switch input, 22V rail protection. | Select SMDA05-6.TBT for standard distribution channels; TDS2211P may be preferred for direct Semtech procurement or legacy BOM alignment. |
| uClamp2411ZA | 24V working voltage, lower 24A IPP rating, higher 30V clamping, smaller 0.65×0.65mm DFN package. | Better suited for CC/SBU lines in USB-C; insufficient for 40A VBUS-level protection. | Use uClamp2411ZA only for low-current, low-capacitance signal-line protection - not a functional replacement for SMDA05-6.TBT on power rails. |
Compared with TDS2211P, SMDA05-6.TBT is functionally identical and interchangeable; compared with uClamp2411ZA, it delivers 67% higher surge current capability and 2.5V lower clamping - making it the sole suitable option for 22V power-line EOS hardening.
Availability
SMDA05-6.TBT is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and 22V auxiliary power rails requiring stable component supply, high-volume surge resilience, and compact DFN footprint compliance.
Supply support for SMDA05-6.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 protection, sensing, and connectivity.
The TDS family - including SMDA05-6.TBT - was engineered specifically for high-energy EOS protection in 20–24V systems where conventional TVS diodes fail to maintain clamping stability across temperature and current extremes.
FAQ
What is the exact package type and dimensions of SMDA05-6.TBT?
SMDA05-6.TBT uses a DFN (Dual Flat No-lead) package measuring 1.6 mm × 1.6 mm × 0.55 mm with six terminals. Pins 1–3 are grounded, and pins 4–6 serve as the protected input node. The package is RoHS-compliant, halogen-free, and rated UL 94V-0 for flammability - optimized for minimal PCB footprint and low-inductance surge routing.
Does SMDA05-6.TBT meet IEC 61000-4-5 surge immunity standards?
Yes, SMDA05-6.TBT is rated for 40A peak pulse current (8/20μs waveform), which satisfies IEC 61000-4-5 Level 4 (±1 kV, RS = 42 Ω, CS = 0.5 μF) for unsymmetrical lines. Its 27.5–28V clamping voltage at full 40A ensures downstream components remain within safe operating limits during standardized surge testing.
How does SMDA05-6.TBT differ from standard TVS diodes in clamping behavior?
Unlike TVS diodes whose clamping voltage rises linearly with surge current (VC = VBR + IPP × RDYN), SMDA05-6.TBT uses a triggered FET shunt that maintains ~27.5–28V clamping from 1A to 40A and across –40°C to +125°C. This eliminates thermal derating and provides predictable protection margins in real-world operating conditions.
Can SMDA05-6.TBT be used on USB-C VBUS lines with Power Delivery up to 20V?
Yes - SMDA05-6.TBT is explicitly designed for 22V working voltage and is deployed in reference designs for USB-C PD protection. Its 27.5–28V clamping at 40A ensures compatibility with 30V-tolerant PD controllers and prevents latch-up or gate oxide damage during lightning or ESD events on the VBUS line.
What is the maximum junction temperature and storage temperature range for SMDA05-6.TBT?
SMDA05-6.TBT has a junction and storage temperature range of –55°C to +150°C, with an operating temperature range of –40°C to +125°C. These ratings are validated per Semtech's absolute maximum specifications and enable deployment in automotive under-hood, industrial control, and outdoor IoT environments without thermal derating of surge capability.
SMDA05-6.TBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- SMDA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 6
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 11V
- Current - Peak Pulse (10/1000µs):
- 17A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 400pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
SMDA05-6.TBT FAQ
1.How can I place an order for SMDA05-6.TBT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDA05-6.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 SMDA05-6.TBT reliable?
The price and inventory of SMDA05-6.TBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDA05-6.TBT is usually 5 days.
3.What payment methods are accepted for SMDA05-6.TBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDA05-6.TBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDA05-6.TBT?
SMDA05-6.TBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDA05-6.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 SMDA05-6.TBT?
For technical support, including SMDA05-6.TBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDA05-6.TBT requirements.
6.How does Aetrix verify that SMDA05-6.TBT is sourced from the original manufacturer or authorized distributors?
All SMDA05-6.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 SMDA05-6.TBT meets industry standards.
7.What is the process for return or replacement of SMDA05-6.TBT?
All SMDA05-6.TBT units undergo pre-shipment inspection (PSI). If there is an issue with SMDA05-6.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 SMDA05-6.TBT part is unused and in its original packaging.
Return procedure for SMDA05-6.TBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDA05-6.TBT Tags
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