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Semtech Corporation SMDA05C-5.T
- Part No.:
- SMDA05C-5.T
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SMDA05C-5.T.pdf
- Description:
- TVS DIODE 5VWM 9.8VC 8-SO
- Quantity:
- Payment:
- Shipping:
Inventory:7,809
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Product details
Overview
SMDA05C-5.T 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 ultra-low 20mΩ dynamic resistance. It protects USB PD and Type-C VBUS lines in industrial and portable electronics.
For engineers reviewing the SMDA05C-5.T datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, temperature-stable clamping behavior, and direct alternatives for EOS-critical bus protection designs.
Technical Context
The SMDA05C-5.T 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 across 24–40A (8/20μs) due to decreasing RDS(on) under surge conditions.
It operates from −40°C to +125°C with stable 27.5–28V clamping at 40A, 22V reverse stand-off voltage, and 175pF junction capacitance at 22V/1MHz - enabling robust protection without signal integrity compromise in high-speed power buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD VBUS and industrial 24V rail derating requirements. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - stays below 30V damage threshold of most load switches and PD controllers. |
| Peak Pulse Current | 40A (8/20μs) - satisfies IEC 61000-4-5 Level 4 surge immunity for industrial equipment. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and consumer ESD test requirements. |
| Dynamic Resistance | 20mΩ - enables low-voltage-drop shunting, minimizing energy dissipation in the device during surge events. |
| Junction Capacitance | 175pF at 22V/1MHz - compatible with DC power rails; not intended for high-speed data line placement. |
| Operating Temp. | −40°C to +125°C - supports extended-temperature industrial and automotive under-hood applications. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for surge current; all three pins must be connected to maximize current handling and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS); parallel connection ensures uniform current sharing and optimal 40A capability. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Enables flat clamping voltage vs. current and temperature - eliminates voltage rise seen in standard TVS diodes. |
| Constant clamping over temperature | 27.5–28V clamping maintained from −40°C to +125°C - ensures predictable protection in thermal extremes. |
| Low dynamic resistance | 20mΩ - reduces I²R heating during 40A surges, improving reliability and reducing board-level thermal stress. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - supports repeated lightning-surge events per IEC 61000-4-5. |
| Compact DFN footprint | 1.6mm × 1.6mm - saves >50% board area versus SO-8 or SOT-23 TVS solutions with comparable ratings. |
Applications
| USB Type-C Power Delivery | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–22V VBUS lines in USB-C ports supporting up to 100W PD negotiation. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector to clamp EOS before reaching PD controller or load switch. Use Value: Maintains 27.5–28V clamping across full temperature range - prevents false overvoltage shutdown and ensures reliable PD handshake under surge stress. |
Use Scenario: Shielding e-fuse or load switch inputs in remote meters, robotics, and factory automation systems exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary front-end EOS protector for HS2950P-class devices, absorbing 40A transients before internal FET failure. Use Value: Keeps clamping voltage below 30V - avoids gate oxide damage to integrated load switches rated for ≤30V absolute maximum. |
| IoT Edge Node Power Rails | Notebook/Tablet VBUS Protection |
|
Use Scenario: Securing 22V-capable power inputs in battery-backed IoT gateways operating in uncontrolled environments. IC Role / Device Role / Timing Role: Standalone EOS guard for PMIC input rails, replacing multi-device TVS+RC networks. Use Value: Single-component solution with 175pF capacitance - avoids filtering delays or resonance issues common in RC-filtered TVS approaches. |
Use Scenario: Hardening USB-C receptacle VBUS paths in thin-client notebooks and detachable tablets subject to user-handling ESD. IC Role / Device Role / Timing Role: High-reliability ESD suppressor co-located with connector, rated for ±30kV contact discharge. Use Value: Survives repeated 30kV ESD strikes without parameter drift - extends field life versus standard TVS diodes showing degradation after 5–10 kV events. |
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 SMDA05C-5.T. | Identical use case: 22V bus protection with 40A surge rating and ±30kV ESD. | Select when sourcing from Semtech's official distribution channel with full traceability and lifecycle support. |
| uClamp2411ZA | 24V working voltage, lower 24A IPP rating, 0.25pF capacitance - optimized for CC/SBU lines, not VBUS. | Designed for low-capacitance data/control lines; unsuitable for 40A power rail protection. | Use only for auxiliary USB-C signals; not a replacement for SMDA05C-5.T in VBUS roles. |
Compared with TDS2211P, SMDA05C-5.T shares identical specifications and package - making it a fully interchangeable part in design and procurement. uClamp2411ZA serves a different signal-integrity-sensitive role and cannot handle VBUS-level surge energy.
Availability
SMDA05C-5.T is available at Aetrix Electronics and suitable for USB Type-C power delivery, industrial load switch protection, and IoT edge node power rail applications requiring stable component supply, long-term lifecycle assurance, and full compliance documentation.
Supply support for SMDA05C-5.T 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 connectivity.
The SMDA05C-5.T belongs to Semtech's Transient Diverting Suppressor (TDS) family - engineered to replace conventional TVS diodes in high-energy EOS applications where stable clamping and temperature resilience are critical.
FAQ
What is the clamping voltage of SMDA05C-5.T at 40A surge current?
The SMDA05C-5.T clamps at 27.5–28V under 40A peak pulse current (8/20μs waveform), as confirmed in its electrical characteristics table. This value remains stable across −40°C to +125°C, distinguishing it from standard TVS diodes whose clamping rises with current and temperature. The consistent 28V ceiling ensures downstream components like USB PD controllers remain within safe operating limits during surge events.
Is SMDA05C-5.T pin-compatible with TDS2211P?
Yes, SMDA05C-5.T is functionally and physically identical to TDS2211P: both use the same DFN 1.6mm × 1.6mm × 0.55mm 6-lead package, share identical pin configuration (pins 1–3 = GND, pins 4–6 = IN), and match all key parameters including 22V working voltage, 40A IPP, and ±30kV ESD rating. No PCB or layout changes are required when substituting SMDA05C-5.T for TDS2211P.
Can SMDA05C-5.T be used on high-speed data lines like USB SuperSpeed?
No, SMDA05C-5.T is not suitable for USB SuperSpeed (TX/RX) or DisplayPort lines due to its 175pF junction capacitance - which would severely degrade signal integrity. It is specifically designed for DC power rails and low-frequency I/O lines such as VBUS, CC, or load switch inputs. For data lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25pF).
What is the maximum operating temperature for SMDA05C-5.T?
The SMDA05C-5.T is rated for continuous operation from −40°C to +125°C ambient temperature. Its clamping voltage and leakage current remain within specification across this full range, as validated in typical characteristics graphs showing stable 27.5–28V clamping at 40A even at 125°C - making it appropriate for under-hood automotive or industrial control cabinet deployments.
Does SMDA05C-5.T require a thermal pad on the PCB?
No, SMDA05C-5.T does not require an exposed thermal pad. Its DFN package dissipates surge energy through the GND pins (1–3) and relies on low-inductance PCB routing rather than thermal conduction. Per Semtech's layout guidelines, multiple vias connecting pins 1–3 to an internal ground plane are recommended to minimize parasitic inductance - but no thermal relief or copper pour beneath the body is needed or specified.
SMDA05C-5.T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- SMDAC-5
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 5
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 9.8V
- Current - Peak Pulse (10/1000µs):
- 17A (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
SMDA05C-5.T FAQ
1.How can I place an order for SMDA05C-5.T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMDA05C-5.T 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 SMDA05C-5.T reliable?
The price and inventory of SMDA05C-5.T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMDA05C-5.T is usually 5 days.
3.What payment methods are accepted for SMDA05C-5.T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMDA05C-5.T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMDA05C-5.T?
SMDA05C-5.T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMDA05C-5.T 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 SMDA05C-5.T?
For technical support, including SMDA05C-5.T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMDA05C-5.T requirements.
6.How does Aetrix verify that SMDA05C-5.T is sourced from the original manufacturer or authorized distributors?
All SMDA05C-5.T 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 SMDA05C-5.T meets industry standards.
7.What is the process for return or replacement of SMDA05C-5.T?
All SMDA05C-5.T units undergo pre-shipment inspection (PSI). If there is an issue with SMDA05C-5.T, 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 SMDA05C-5.T part is unused and in its original packaging.
Return procedure for SMDA05C-5.T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMDA05C-5.T Tags
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