Semtech Corporation 1N6106AUS
- Part No.:
- 1N6106AUS
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SQ-MELF
- Datasheet:
-
1N6106AUS.pdf
- Description:
- TVS DIODE 7.6VWM 14.5VC
- Quantity:
- Payment:

- Shipping:

Inventory:5,624
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Product details
Overview
1N6106AUS 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, Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the 1N6106AUS 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 1N6106AUS 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 0–40A (8/20μs) due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C with stable 27.5–28V clamping at 40A, 22V reverse stand-off, 27.9V typical breakdown, 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 |
|---|---|
| Reverse Stand-Off Voltage | 22 V - defines maximum continuous DC operating voltage before leakage rises significantly; matches USB PD 20V nominal + margin. |
| Clamping Voltage (40A, 8/20μs) | 27.5–28 V - ensures protected ICs (e.g., load switches, PD controllers) remain below absolute maximum ratings during worst-case surges. |
| Peak Pulse Current | 40 A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V systems. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD immunity standards without external shielding. |
| Dynamic Resistance | 20 mΩ - enables flat clamping curve; reduces voltage overshoot vs. TVS diodes whose VC rises linearly with IPP. |
| Junction Capacitance | 175 pF @ 22V, 1MHz - low enough to avoid degrading rise/fall times on 22V power rails; no signal-line filtering needed. |
Pinout & Package
1N6106AUS is housed in a RoHS-compliant, halogen-free DFN-6 package measuring 1.6 mm × 1.6 mm × 0.55 mm, with exposed thermal pad omitted (energy dissipated in silicon, not substrate).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return for surge current; all three must be connected to maximize current sharing and minimize parasitic inductance. |
| Pins 4, 5, 6 | IN | Protected line input (e.g., VBus); parallel connection ensures uniform current distribution and full 40A rating. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5 V across 0–40A (8/20μs) and –40°C to +125°C - eliminates derating uncertainty in thermal design. |
| FET-based shunt topology | Replaces pn-junction TVS with <0.1 Ω effective RDS(on) - avoids thermal runaway and enables higher surge endurance per unit area. |
| Low dynamic resistance | 20 mΩ measured between 1A–40A - directly lowers clamping voltage delta (ΔV = ΔI × RDYN) versus standard TVS. |
| High EFT immunity | ±4 kV per IEC 61000-4-4 (5/50 ns, 5 kHz & 100 kHz) - sustains operation during repetitive burst noise on industrial power rails. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20V–22V VBus lines in USB-C receptacles against lightning-induced surges and connector hot-plug ESD. IC Role / Device Role / Timing Role: Primary EOS shunt device placed adjacent to connector; clamps transients before reaching PD controller or buck converter. Use Value: Maintains 27.5–28V clamping at 40A and 125°C - prevents damage to 30V-rated PD controllers where conventional TVS would exceed 38V at same conditions. |
Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., HS2950P) in remote meters and robotics. IC Role / Device Role / Timing Role: Front-end transient diverter; routes surge energy away from sensitive gate-drive and overvoltage protection circuitry. Use Value: Limits voltage seen by internal FET's drain-source junction to ≤28V - avoids avalanche failure and extends switch lifetime under repeated EOS events. |
| IoT Device Power Rail Protection | Notebook/Tablet 22V System Bus Protection |
Use Scenario: Securing 22V auxiliary power rails in battery-powered IoT gateways exposed to field ESD and induced surges. IC Role / Device Role / Timing Role: Single-component solution replacing multi-stage TVS+MOV networks; handles both fast ESD and slower surge waveforms. Use Value: 175pF capacitance avoids signal distortion on 22V bias rails; ±30kV ESD rating eliminates need for secondary board-level shielding. |
Use Scenario: Protecting main system power bus in ultrabooks and tablets supporting USB PD charging up to 20V. IC Role / Device Role / Timing Role: Point-of-entry protector at power input connector; coordinates with downstream low-capacitance TVS on data lines. Use Value: 1.6 mm × 1.6 mm footprint saves >60% board area vs. SOD-123 TVS solutions - critical for thin-profile PCB stacking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Identical electrical specs, pinout, and package; same Semtech product family - confirmed drop-in replacement per official ordering documentation. | No functional or layout change required; validated for USB PD, Type-C, 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 (8/20μs); higher clamping, lower IPP (12.3A), larger SMA package. | Limited to lower-energy surges; clamping rises to >40V at elevated temperature - unsuitable for 30V-max PD controllers. | Use SMAJ22A only in cost-sensitive, non-temperature-critical 22V applications where 40A surge rating is unnecessary. |
Compared with 1N6106AUS, TDS2211P offers identical performance and fit, while SMAJ22A trades surge capacity and thermal stability for lower cost and wider distributor availability - making 1N6106AUS optimal for thermally constrained, high-reliability 22V bus protection.
Availability
1N6106AUS is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch interfaces, and IoT device 22V rail protection requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for 1N6106AUS 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 1N6106AUS belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-energy, temperature-variable EOS environments like USB PD and industrial power rails.
FAQ
What is the clamping voltage of the 1N6106AUS at 40A surge current?
The 1N6106AUS clamps at 27.5–28 V under 40A peak pulse current (8/20μs waveform), with minimal variation across –40°C to +125°C. This stable clamping is achieved via its FET-based shunt architecture, unlike TVS diodes whose voltage rises linearly with current. The 1N6106AUS datasheet specifies this value under standardized test conditions with 2Ω source impedance.
Is the 1N6106AUS pin-compatible with TDS2211P?
Yes, the 1N6106AUS is pin-compatible with TDS2211P: both use the same 6-pin DFN package (1.6 mm × 1.6 mm), with identical pin 1–3 (GND) and pin 4–6 (IN) assignments and mechanical dimensions. Semtech's official ordering information confirms TDS2211P.C and 1N6106AUS share identical land patterns and thermal profiles.
Does the 1N6106AUS require a thermal pad on the PCB?
No, the 1N6106AUS does not require an exposed thermal pad. Its DFN package dissipates surge energy within the silicon die rather than through the substrate; Semtech explicitly states "no thermal pad is needed" in the datasheet. Layout best practice emphasizes low-inductance grounding via multiple vias to the ground plane instead.
Can the 1N6106AUS protect USB Type-C CC lines?
No, the 1N6106AUS is not intended for USB Type-C CC (Configuration Channel) line protection. Its 22V working voltage and 6-pin configuration are optimized for VBus or power rail protection. CC lines require low-capacitance (<1 pF), 5.5V-rated devices like uClamp2411ZA - using 1N6106AUS there would cause signal integrity failure and incorrect voltage detection.
What is the junction capacitance of the 1N6106AUS and why does it matter?
The 1N6106AUS has a junction capacitance of 175 pF at 22V and 1 MHz. This value is low enough to avoid distorting rise/fall times on 22V power rails yet high enough to provide effective low-frequency surge shunting. It matters because excessive capacitance could slow down power sequencing or induce instability in feedback loops of downstream regulators powered by the protected rail.
1N6106AUS 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):
- 7.6V (Max)
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 34.5A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
1N6106AUS FAQ
1.How can I place an order for 1N6106AUS through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6106AUS 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 1N6106AUS reliable?
The price and inventory of 1N6106AUS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6106AUS is usually 5 days.
3.What payment methods are accepted for 1N6106AUS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6106AUS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6106AUS?
1N6106AUS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6106AUS 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 1N6106AUS?
For technical support, including 1N6106AUS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6106AUS requirements.
6.How does Aetrix verify that 1N6106AUS is sourced from the original manufacturer or authorized distributors?
All 1N6106AUS 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 1N6106AUS meets industry standards.
7.What is the process for return or replacement of 1N6106AUS?
All 1N6106AUS units undergo pre-shipment inspection (PSI). If there is an issue with 1N6106AUS, 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 1N6106AUS part is unused and in its original packaging.
Return procedure for 1N6106AUS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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