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Semtech Corporation 1N6116AUS
- Part No.:
- 1N6116AUS
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SQ-MELF
- Datasheet:
-
1N6116AUS.pdf
- Description:
- TVS DIODE 20.6VWM 37.4VC
- Quantity:
- Payment:
- Shipping:
Inventory:7,812
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Product details
Overview
1N6116AUS 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 20mΩ dynamic resistance - deployed in USB PD, Type-C, and industrial load switch input protection.
For engineers reviewing the 1N6116AUS datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, real-world clamping stability across temperature and current, and validated alternatives for 22V bus protection design.
Technical Context
The 1N6116AUS 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 - enabling near-constant clamping voltage independent of peak pulse current magnitude or operating temperature.
Unlike conventional TVS diodes whose clamping voltage rises linearly with IPP (VC = VBR + IPP × RDYN), the 1N6116AUS maintains stable 27.5–28V clamping from 24A to 40A and across –40°C to +125°C due to decreasing RDS(on) under surge conditions and low 20mΩ dynamic resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC or RMS operating voltage on protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo waveform) - ensures downstream 24V-rated ICs (e.g., USB PD controllers) remain below damage threshold during surge. |
| Peak Pulse Current | 40A (tp = 8/20μs) - supports compliance with IEC 61000-4-5 Level 4 (±1kV, RS = 42Ω) on unsymmetrical lines. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - eliminates need for secondary ESD stages in handheld or exposed interface designs. |
| Junction Capacitance | 175pF at 22V, 1MHz - compatible with low-speed power/bus lines; not suitable for >100MHz signal integrity paths. |
| Dynamic Resistance | 20mΩ - enables flat clamping curve and minimizes voltage overshoot during fast-rising transients. |
Pinout & Package
1N6116AUS is housed in a Pb-free, RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad not required - all six terminals are functional: three GND pins (1–3) and three IN pins (4–6), requiring parallel connection for full 40A rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected with low-inductance routing to maximize current sharing and thermal dissipation. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS or load switch input); parallel connection ensures uniform current division and full 40A capability. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage | 27.5–28V across 24–40A and –40°C to +125°C - eliminates derating calculations and guarantees protection margin at worst-case ambient and surge conditions. |
| FET-based shunt architecture | Replaces PN-junction TVS with low-RDS(on) MOSFET triggered by precision circuit - avoids thermal runaway and junction-limited energy absorption. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz) - sustains operation in electrically noisy industrial environments without false triggering. |
| Low leakage | 600nA max at 22V - prevents measurable power loss in always-on 22V systems such as battery-backed industrial sensors. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBUS lines in USB-C ports supporting up to 20V/5A PD negotiation, exposed to ESD from user plugging/unplugging. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed directly at connector, clamping surges before reaching PD controller or load switch. Use Value: Maintains 27.5–28V clamping at full 40A even at 125°C - avoids overvoltage damage to 24V-rated PD controllers where standard TVS would exceed 38V. |
Use Scenario: Safeguarding input of industrial-grade load switches (e.g., HS2950P) in remote meters or robotics subject to lightning-induced surges on long cables. IC Role / Device Role / Timing Role: Front-end transient diverter placed between connector and load switch VIN pin, limiting voltage seen by internal FET gate oxide. Use Value: Clamps to ≤28V during 40A 8/20μs transients - keeps stress below 30V absolute maximum rating of typical 30V load switch inputs. |
| Notebook/Tablet 22V System Rail Protection | IoT Edge Device Power Input Protection |
Use Scenario: Securing main 22V system rail in thin-client notebooks or 2-in-1 tablets against ESD and coupling from adjacent high-speed traces. IC Role / Device Role / Timing Role: Low-capacitance (175pF), low-leakage (600nA) protector on main power rail, co-located near DC jack or battery connector. Use Value: Delivers ±30kV ESD robustness without adding significant standby current or board area - replaces bulkier multi-chip TVS arrays. |
Use Scenario: Hardening 22V input of battery-powered IoT gateways deployed outdoors or in factory floors with frequent electrostatic discharge events. IC Role / Device Role / Timing Role: Single-component EOS solution for unregulated 22V supply, handling both fast ESD (15ns rise) and slower surges (1.2/50μs). Use Value: Guarantees ≤28V clamping across –40°C to +85°C operating range - ensures reliable protection in wide-temperature deployments without thermal derating. |
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; 35.1V clamping at 12.3A (8/20μs); 600W peak power; 100pF capacitance. | Limited to lower-energy surges; clamping rises to ~42V at 40A and increases with temperature - insufficient for 24V-system margin. | Use only where peak current ≤12A and ambient <60°C; requires thermal derating and additional margin analysis. |
| TPD2E001DRYR | Low-capacitance (12pF) dual-channel ESD protector; ±15kV contact ESD; 12V working voltage; not rated for 40A surge. | Designed for high-speed data lines (USB 2.0, I²C), not power rails; lacks EOS energy handling for VBUS or load switch inputs. | Complementary to 1N6116AUS - use TPD2E001DRYR on CC/SBU lines, 1N6116AUS on VBUS; not a direct replacement. |
Compared with SMAJ22A and TPD2E001DRYR, the 1N6116AUS uniquely delivers stable 27.5–28V clamping at 40A across full industrial temperature range - making it the only single-device solution for robust 22V bus protection without thermal or current derating.
Availability
1N6116AUS is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch inputs, and notebook 22V rail protection requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for 1N6116AUS 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.
The 1N6116AUS belongs to Semtech's Transient Diverting Suppressor (TDS) product line - engineered to replace conventional TVS diodes in high-reliability 22V power rail and interface protection where stable clamping and temperature insensitivity are critical.
FAQ
What is the exact clamping voltage specification for 1N6116AUS at 40A?
The 1N6116AUS has a guaranteed clamping voltage of 27.5–28V at 40A using the IEC 61000-4-5 combination waveform (1.2/50μs voltage + 8/20μs current, RS = 2Ω). This value is confirmed in the Electrical Characteristics table on page 2 of the official datasheet and remains stable across –40°C to +125°C.
Is 1N6116AUS pin-compatible with standard SOD-123 or SMA packages?
No - the 1N6116AUS uses a proprietary 6-pin DFN package (1.6mm × 1.6mm × 0.55mm) with three parallel IN pins (4–6) and three parallel GND pins (1–3). It is not mechanically or electrically interchangeable with SOD-123, SMA, or other 2-pin TVS packages due to different pin count, layout, and current-sharing requirements.
Can 1N6116AUS be used to protect a 24V nominal system?
Yes - the 1N6116AUS has a 22V reverse stand-off voltage (VRWM) and 25–27.9V breakdown (VBR), making it suitable for 24V nominal systems where transient excursions must be limited to ≤28V. Its clamping stays within safe margins for 24V-rated ICs, unlike standard TVS devices whose clamping exceeds 38V at 40A and elevated temperatures.
Does 1N6116AUS require a thermal pad or heatsink on the PCB?
No - the 1N6116AUS dissipates surge energy via its internal FET channel, not junction heating, and does not require an exposed thermal pad or external heatsink. The datasheet explicitly states "no thermal pad is needed," and layout guidelines emphasize low-inductance GND vias instead of thermal relief.
How does 1N6116AUS differ from traditional TVS diodes in surge response time?
The 1N6116AUS uses a precision trigger circuit to activate its shunt FET, achieving effective response within nanoseconds - comparable to TVS diodes - but with superior post-trigger behavior: its clamping voltage remains flat due to decreasing RDS(on), whereas TVS clamping rises linearly with current and temperature. Response time itself is not specified separately, as protection is defined by clamping performance, not latency.
1N6116AUS 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):
- 20.6V (Max)
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.4V
- Current - Peak Pulse (10/1000µs):
- 13.4A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
1N6116AUS FAQ
1.How can I place an order for 1N6116AUS through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6116AUS 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 1N6116AUS reliable?
The price and inventory of 1N6116AUS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6116AUS is usually 5 days.
3.What payment methods are accepted for 1N6116AUS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6116AUS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6116AUS?
1N6116AUS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6116AUS 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 1N6116AUS?
For technical support, including 1N6116AUS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6116AUS requirements.
6.How does Aetrix verify that 1N6116AUS is sourced from the original manufacturer or authorized distributors?
All 1N6116AUS 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 1N6116AUS meets industry standards.
7.What is the process for return or replacement of 1N6116AUS?
All 1N6116AUS units undergo pre-shipment inspection (PSI). If there is an issue with 1N6116AUS, 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 1N6116AUS part is unused and in its original packaging.
Return procedure for 1N6116AUS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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