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Semtech Corporation 1N6114AUS
- Part No.:
- 1N6114AUS
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SQ-MELF
- Datasheet:
-
1N6114AUS.pdf
- Description:
- TVS DIODE 16.7VWM 30.5VC
- Quantity:
- Payment:
- Shipping:
Inventory:8,591
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Product details
Overview
1N6114AUS from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated 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 inputs.
For engineers reviewing the 1N6114AUS 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 direct alternatives for 22V bus protection design.
Technical Context
The 1N6114AUS implements a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events and rapidly shunts transient current to ground. Unlike conventional TVS diodes, its clamping voltage remains nearly constant due to decreasing RDS(on) under surge conditions.
It operates across –40°C to +125°C with stable 27.5–28V clamping up to 40A (8/20μs), maintains <600nA reverse leakage at 22V, and achieves 1120W peak pulse power dissipation - all within a 1.6mm × 1.6mm × 0.55mm DFN-6 package optimized for minimal PCB footprint and low parasitic inductance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage on protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - ensures downstream 24V-rated ICs (e.g., USB PD controllers) remain below damage threshold during surge. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD robustness standards without degradation. |
| Junction Capacitance | 175pF at 22V, 1MHz - compatible with medium-speed data/power lines (e.g., USB PD VBUS, load switch inputs); not suitable for >1Gbps signals. |
| Dynamic Resistance | 20mΩ - enables flat clamping curve; reduces voltage rise per amp of surge current versus TVS diodes (>1Ω typical). |
| Reverse Leakage | ≤600nA at 22V - negligible power loss and signal integrity impact in always-on 22V supply monitoring paths. |
Pinout & Package
1N6114AUS is housed in a Pb-free, RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad (no solder mask defined). All six terminals must be connected - three GND pins (1–3) and three IN pins (4–6) - to achieve rated 40A surge capability and minimize ground loop inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; requires low-inductance connection to PCB ground plane via multiple vias. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS, load switch VIN); all three pins must be paralleled to distribute surge current and reduce trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V from 24A to 40A (8/20μs), eliminating need for derating at high temperatures or currents. |
| FET-based shunt topology | Replaces junction-limited TVS with low-RDS(on) MOSFET, shifting energy dissipation from junction to channel and enabling higher IPP in small die area. |
| Temperature-stable protection | Clamping remains 27.5–28V from –40°C to +125°C - unlike TVS diodes whose VC rises >10V over same range. |
| High-energy surge rating | 1120W peak pulse power supports repeated 1kV/42Ω surges (IEC 61000-4-5) without parametric shift or failure. |
| Low-capacitance interface | 175pF allows integration on 22V power rails without affecting load switch turn-on timing or PD controller response. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting VBUS line in USB-C ports supporting up to 20V/5A PD negotiation against lightning-induced surges and connector hot-plug transients. IC Role / Device Role / Timing Role: Primary high-energy clamp placed directly at connector, upstream of PD controller and load switch. Use Value: Maintains 27.5V clamping at full 40A surge - 10.5V lower than typical 22V TVS at 125°C - preventing PD controller latch-up or overvoltage shutdown. |
Use Scenario: Safeguarding input of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment exposed to 1kV/42Ω surges. IC Role / Device Role / Timing Role: Front-end transient suppressor limiting voltage seen by internal FET gate oxide and overvoltage protection circuitry. Use Value: Clamps to ≤28V across full temperature range, keeping stress below 30V absolute maximum rating of common 30V load switches - avoiding catastrophic failure. |
| IoT Device Power Rail Protection | Storage Device 22V Backup Supply Protection |
|
Use Scenario: Securing 22V auxiliary power inputs in battery-backed IoT gateways subjected to ESD during field servicing and conducted surges from shared AC adapters. IC Role / Device Role / Timing Role: Single-component solution replacing multi-stage TVS+MOV networks, reducing BOM count and board space. Use Value: Delivers ±30kV ESD immunity and 40A surge handling in 2.56mm² footprint - 65% smaller than discrete TVS+series resistor solutions. |
Use Scenario: Protecting 22V supercapacitor or LiFePO₄ backup supply inputs in enterprise SSDs and NAS enclosures against power rail transients during hot-swap events. IC Role / Device Role / Timing Role: Fast-acting shunt device placed between backup source and system PMIC input to prevent overvoltage damage during charge/discharge transitions. Use Value: 20mΩ dynamic resistance ensures <0.8V IR drop at 40A, preserving backup voltage headroom critical for clean system shutdown sequencing. |
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; 22V VRWM, 35.5V VC @ 12.3A (8/20μs), 1.2Ω dynamic resistance. | Higher clamping voltage increases risk of downstream IC damage at elevated temperatures or full surge current. | Select when cost sensitivity outweighs clamping performance; requires thermal derating above 85°C. |
| TDS2211P | Same FET-based TDS architecture, identical 22V/40A/28V specs, but differs in marking and reel packaging (TDS2211P.C vs. 1N6114AUS). | No functional difference; both meet identical IEC 61000-4-2/4-4/4-5 requirements and share pinout, package, and thermal profile. | Direct second-source option - identical electrical and mechanical behavior; interchangeability confirmed by Semtech documentation. |
Compared with SMAJ22A, 1N6114AUS delivers 7.5V lower clamping at rated current and stable performance across temperature, while TDS2211P offers identical protection with alternate ordering code - making 1N6114AUS optimal for designs requiring guaranteed low-voltage clamping without thermal compromise.
Availability
1N6114AUS is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT 22V power rail protection requiring stable component supply, long-term lifecycle support, and consistent surge performance across production batches.
Supply support for 1N6114AUS 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 semiconductors for power management, protection, and signal integrity.
The 1N6114AUS belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power and interface protection where stable clamping under surge and temperature stress is critical.
FAQ
What is the exact package type and dimensions of the 1N6114AUS?
The 1N6114AUS uses a 6-pin DFN package measuring 1.6mm × 1.6mm × 0.55mm with no exposed thermal pad requirement. Pin 1 is marked by a laser dot; pins 1–3 are GND, pins 4–6 are IN. Land pattern follows Semtech's recommended 0.30mm pad width and 0.50mm pitch per the official DFN-6 outline drawing.
Does the 1N6114AUS require external bias or control signals to operate?
No, the 1N6114AUS is fully autonomous - it contains an integrated precision trigger circuit and surge-rated FET. It activates instantly upon detecting overvoltage beyond its 25–27.9V breakdown threshold, with no enable pin, power supply, or configuration needed. The 1N6114AUS functions as a passive, self-triggering shunt device.
How does the clamping voltage of the 1N6114AUS compare to standard TVS diodes at high temperature?
At 125°C, the 1N6114AUS maintains 27.5–28V clamping up to 40A, whereas a typical 22V TVS (e.g., SMAJ22A) clamps at ~38V under identical conditions - a 10.5V penalty. This stability stems from the FET-based architecture of the 1N6114AUS, which avoids the positive temperature coefficient of PN-junction TVS devices.
Can the 1N6114AUS be used on high-speed data lines like USB SuperSpeed or PCIe?
No - the 1N6114AUS has 175pF junction capacitance, which would severely degrade signal integrity on >1Gbps differential pairs. It is intended only for 22V power lines (VBUS, load switch inputs) or low-speed control signals. For USB SS/DP/DM lines, Semtech recommends RClamp3371ZC (<0.25pF), not the 1N6114AUS.
Is the 1N6114AUS RoHS compliant and halogen free?
Yes, the 1N6114AUS is Pb-free, halogen-free, and compliant with RoHS Directive 2011/65/EU and WEEE Directive 2012/19/EU. Its molding compound meets UL 94V-0 flammability rating, and lead finish is 100% matte tin - fully documented in Semtech's TDS2211P datasheet Rev 2.5.
1N6114AUS 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):
- 16.7V (Max)
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.5V
- Current - Peak Pulse (10/1000µs):
- 16.4A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
1N6114AUS FAQ
1.How can I place an order for 1N6114AUS through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6114AUS 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 1N6114AUS reliable?
The price and inventory of 1N6114AUS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6114AUS is usually 5 days.
3.What payment methods are accepted for 1N6114AUS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6114AUS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6114AUS?
1N6114AUS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6114AUS 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 1N6114AUS?
For technical support, including 1N6114AUS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6114AUS requirements.
6.How does Aetrix verify that 1N6114AUS is sourced from the original manufacturer or authorized distributors?
All 1N6114AUS 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 1N6114AUS meets industry standards.
7.What is the process for return or replacement of 1N6114AUS?
All 1N6114AUS units undergo pre-shipment inspection (PSI). If there is an issue with 1N6114AUS, 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 1N6114AUS part is unused and in its original packaging.
Return procedure for 1N6114AUS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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