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Semtech Corporation 1N6110AUS
- Part No.:
- 1N6110AUS
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SQ-MELF
- Datasheet:
-
1N6110AUS.pdf
- Description:
- TVS DIODE 11.4VWM 11.2VC
- Quantity:
- Payment:
- Shipping:
Inventory:2,640
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Product details
Overview
1N6110AUS 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, USB Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the 1N6110AUS datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, clamping stability across temperature and current, and direct alternatives for 22V bus protection design.
Technical Context
The 1N6110AUS 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 and across –40°C to +125°C due to decreasing RDS(on) under surge.
It operates with reverse stand-off voltage (VRWM) of 22V, breakdown voltage (VBR) of 25–27.9V at 1mA, and junction capacitance of 175pF at 22V/1MHz-optimized for low-impact integration on high-speed power rails without signal integrity compromise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD VBus and industrial 24V rail systems without derating. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - stays below 30V damage threshold of common load switches and PD controllers. |
| Peak Pulse Current | 40A (8/20μs) - meets 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 requirements without external staging. |
| Dynamic Resistance | 20mΩ - enables flat clamping curve and minimizes voltage overshoot during fast-rising transients. |
| Junction Capacitance | 175pF at 22V/1MHz - low enough to avoid loading 20V power rails while maintaining robust surge handling. |
Pinout & Package
1N6110AUS is housed in a RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad (no solder mask defined). All six terminals are surface-mount; pins 1–3 are internally connected GND, pins 4–6 are internally connected IN - requiring parallel routing for full 40A capability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground connection - all three must be tied to PCB ground plane via multiple vias to minimize inductance and sustain 40A surge current. |
| 4, 5, 6 | IN | Protected line input - all three pins connect in parallel to the same trace from connector to protected IC; required for rated peak pulse performance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V from 24A to 40A - eliminates need for over-spec'ed IPP margin to meet voltage ceiling. |
| Temperature-stable protection | Clamps at 27.5–28V from –40°C to +125°C - removes thermal derating calculations for industrial ambient conditions. |
| Low dynamic resistance | 20mΩ - reduces I²R heating during surge, enabling smaller board area vs. TVS arrays with equivalent energy rating. |
| DFN-6 space efficiency | 1.6mm × 1.6mm footprint - saves >60% board area versus SO-8 or SOT-23-6 TVS solutions rated for comparable 40A surge. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBus lines in USB-C receptacles supporting up to 20V/5A PD negotiation against lightning-induced surges and connector hot-plug ESD. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector entry point, shunting surge energy to ground before reaching PD controller or DC-DC converter. Use Value: Maintains 27.5–28V clamping at 40A and 125°C - prevents latch-up or gate oxide damage in downstream silicon where 30V is absolute max rating. |
Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment exposed to 1.2/50μs surges. IC Role / Device Role / Timing Role: Primary front-end protector for load switch VIN/EN nodes, absorbing transient energy before internal FET gate driver or overvoltage protection circuits. Use Value: Low 20mΩ RDYN ensures minimal voltage overshoot during 8/20μs events - avoids false OVP triggering or premature shutdown. |
| IoT Edge Node Power Rail Protection | Notebook/Tablet Main Power Input Protection |
Use Scenario: Securing 22V input rails of battery-powered IoT gateways with cellular/Wi-Fi modules subject to EFT bursts (IEC 61000-4-4 ±4kV) and ESD. IC Role / Device Role / Timing Role: Solid-state EOS suppressor replacing multi-diode TVS arrays, providing single-device protection for compact, thermally constrained enclosures. Use Value: 175pF capacitance and ±30kV ESD rating allow direct placement without RC filtering - preserves fast transient response and simplifies BOM. |
Use Scenario: Protecting main DC input (e.g., barrel jack or USB-C port) of thin-and-light notebooks and tablets operating from 20V adapters. IC Role / Device Role / Timing Role: First-line defense against user-induced ESD and accidental AC mains coupling into DC input during adapter swap or cable flex. Use Value: DFN-1.6×1.6mm package fits tight layout near connector - achieves 40A surge rating without sacrificing mechanical robustness or thermal relief. |
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 - confirmed pin-to-pin and functional replacement per Semtech documentation. | No change in layout, routing, or thermal design; validated for USB PD and load switch use cases. | Select TDS2211P when sourcing from authorized Semtech channels with full traceability and lifecycle support. |
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 12.3A - higher clamping, lower IPP, no constant-clamp behavior. | Requires larger current rating (e.g., SMAJ22CA) to approach 40A, increasing board area and thermal stress. | Choose SMAJ22A only for cost-sensitive, non-critical 22V rails where 35.5V clamping is acceptable and temperature stability is not required. |
Compared with TDS2211P, 1N6110AUS offers identical performance and drop-in compatibility; compared with SMAJ22A, it delivers 8.5V lower clamping at full 40A, stable operation across –40°C to +125°C, and 60% smaller footprint-making it superior for space-constrained, high-reliability 22V power protection.
Availability
1N6110AUS is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT edge node power rails requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for 1N6110AUS 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 precision sensing, protection, and signal integrity.
The 1N6110AUS belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-energy EOS applications where stable clamping, temperature resilience, and minimal board area are critical.
FAQ
What is the maximum clamping voltage of the 1N6110AUS at 40A surge current?
The 1N6110AUS clamps at 27.5–28V under 40A peak pulse current (8/20μs waveform, 2Ω source impedance), as guaranteed by design per Semtech's TDS2211P datasheet Rev 2.5. This value remains stable across –40°C to +125°C, distinguishing it from conventional TVS diodes whose clamping rises with current and temperature.
Is the 1N6110AUS pin-compatible with TDS2211P?
Yes, the 1N6110AUS is pin-compatible with TDS2211P: both use the same DFN-6 (1.6mm × 1.6mm) package with identical pin 1–3 = GND and pins 4–6 = IN configuration. Semtech documentation confirms identical mechanical dimensions, marking, and tape-and-reel packaging - enabling direct substitution without PCB changes.
Does the 1N6110AUS require a thermal pad or heatsink on the PCB?
No, the 1N6110AUS does not require an exposed thermal pad or external heatsink. Its solid-state FET-based architecture dissipates surge energy efficiently within the die, and Semtech explicitly states "no thermal pad is needed" in the datasheet. Layout emphasis is instead on low-inductance grounding via multiple vias to pins 1–3.
Can the 1N6110AUS protect bidirectional data lines like USB DP/DM?
No, the 1N6110AUS is designed exclusively for unidirectional power or I/O line protection (e.g., VBus, load switch inputs). It lacks symmetrical clamping and low capacitance (<0.5pF) required for high-speed data lines. For DP/DM protection, Semtech recommends RClamp3371ZC - a separate low-capacitance TVS optimized for SuperSpeed USB signals.
What ESD standard compliance does the 1N6110AUS meet?
The 1N6110AUS meets IEC 61000-4-2 with ±30kV contact discharge and ±30kV air discharge ratings - exceeding Level 4 requirements for industrial and consumer equipment. This performance is verified per Semtech's TDS2211P datasheet and applies directly to 1N6110AUS as a functionally identical variant.
1N6110AUS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- SQ-MELF
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 11.4V (Max)
- Voltage - Breakdown (Min):
- 14.25V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 23.8A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
1N6110AUS FAQ
1.How can I place an order for 1N6110AUS through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6110AUS 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 1N6110AUS reliable?
The price and inventory of 1N6110AUS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6110AUS is usually 5 days.
3.What payment methods are accepted for 1N6110AUS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6110AUS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6110AUS?
1N6110AUS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6110AUS 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 1N6110AUS?
For technical support, including 1N6110AUS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6110AUS requirements.
6.How does Aetrix verify that 1N6110AUS is sourced from the original manufacturer or authorized distributors?
All 1N6110AUS 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 1N6110AUS meets industry standards.
7.What is the process for return or replacement of 1N6110AUS?
All 1N6110AUS units undergo pre-shipment inspection (PSI). If there is an issue with 1N6110AUS, 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 1N6110AUS part is unused and in its original packaging.
Return procedure for 1N6110AUS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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