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Semtech Corporation 1N6106A
- Part No.:
- 1N6106A
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- Axial
- Datasheet:
-
1N6106A.pdf
- Description:
- TVS DIODE 7.6VWM 14.5VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,522
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Product details
Overview
1N6106A from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated DC 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, 20mΩ dynamic resistance, and 175pF junction capacitance. It protects USB PD, Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the 1N6106A 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 1N6106A 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 of 22V, breakdown voltage of 25–27.9V at 1mA, and reverse leakage ≤600nA at VRWM. Its 1.6mm × 1.6mm × 0.55mm DFN-6 package integrates three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3) to minimize parasitic inductance and maximize surge current handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage of protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave, RS = 2Ω) - ensures downstream 24V-rated ICs (e.g., USB PD controllers) remain below damage threshold during surge. |
| Peak Pulse Current | 40A (tp = 8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD applications. |
| ESD Withstand | ±30kV contact & air per IEC 61000-4-2 - exceeds automotive and industrial ESD requirements without external shielding. |
| Dynamic Resistance | 20mΩ - enables flat clamping response and low voltage overshoot during fast-rising transients. |
| Junction Capacitance | 175pF at 22V, 1MHz - compatible with 22V power rail protection where signal integrity is secondary to robustness. |
Pinout & Package
1N6106A is housed in a Pb-free, RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad not required (energy dissipated in silicon). All six terminals must be connected: pins 1–3 serve as low-inductance ground return paths; pins 4–6 form a parallel input node for the protected line.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | Ground (GND) | Three parallel low-inductance ground connections - mandatory for full 40A surge rating and minimal voltage overshoot. |
| Pins 4, 5, 6 | Input (IN) | Three parallel input terminals tied directly to protected bus - ensures uniform current sharing and eliminates single-point failure. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies only ±0.5V from 24A to 40A - eliminates need for over-spec'ed IPP margin to meet voltage safety limits. |
| Temperature-stable protection | Clamping remains 27.5–28V from −40°C to +125°C - removes derating calculations required for standard TVS diodes. |
| Low dynamic resistance | 20mΩ measured between 1A–40A (8/20μs) - reduces voltage overshoot during sub-microsecond transients. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - supports repeated lightning-surge events in industrial gateways and metering. |
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 ESD, lightning-induced surges, and hot-plug transients. IC Role / Device Role / Timing Role: Transient diverting suppressor placed immediately at connector, shunting surge energy to ground before it reaches PD controller or e-fuse. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents false overvoltage shutdown and enables use of lower-voltage-rated PD ICs. |
Use Scenario: Safeguarding input pins of high-side load switches (e.g., HS2950P) in remote meters, robotics, and IoT hubs exposed to field wiring surges. IC Role / Device Role / Timing Role: Primary front-end protector that limits voltage stress on internal MOSFET gate oxide and drain-source junction during 1kV/42Ω surges. Use Value: Clamps below 28V at 40A - keeps load switch within safe operating area (SOA) without requiring oversized die or external crowbar circuits. |
| Notebook/Tablet DC Power Input Protection | Industrial Equipment 24V Rail Protection |
|
Use Scenario: Securing 20V DC input rails in thin-client notebooks and tablets against accidental adapter misconnection and ESD from user interface ports. IC Role / Device Role / Timing Role: Standalone EOS suppressor replacing multi-stage TVS+MOV solutions, integrated adjacent to barrel jack or USB-C port. Use Value: 175pF capacitance and 22V working voltage allow direct placement without filtering degradation - simplifies layout vs. low-capacitance TVS + series impedance. |
Use Scenario: Hardening 22–24V auxiliary power rails in PLC I/O modules, motor drives, and HMI panels against induced surges from relay switching or nearby lightning. IC Role / Device Role / Timing Role: Single-device solution for IEC 61000-4-5 Level 4 compliance on distributed power inputs, replacing discrete FET+trigger designs. Use Value: 40A rating and stable clamping enable pass/fail certification at full test severity - eliminates re-spin risk from marginal TVS selection. |
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 pinout, same 22V VRWM, 40A IPP, and 27.5–28V clamping - documented as direct replacement in Semtech's cross-reference matrix. | Same USB PD, Type-C, and load switch use cases; identical DFN-6 footprint and layout rules. | Select TDS2211P when sourcing from Semtech-authorized channels with full traceability and updated lifecycle status. |
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 33.2V VBR, 40.5V clamping at 32.4A - higher clamping, no constant-voltage behavior, 10× higher dynamic resistance (~200mΩ). | Suitable only where clamping >35V is acceptable and temperature derating can be managed; not recommended for USB PD or precision 24V systems. | Choose SMAJ22A only for cost-sensitive, non-critical 22V rail protection where clamping margin allows ≥35V overshoot. |
Compared with 1N6106A, TDS2211P offers identical performance and drop-in compatibility, while SMAJ22A requires significant clamping voltage and temperature derating - making 1N6106A the preferred choice for thermally constrained or voltage-tight 22V systems.
Availability
1N6106A is available at Aetrix Electronics and suitable for USB Type-C power delivery interfaces, industrial load switch inputs, and notebook DC power rails requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for 1N6106A 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 in industrial, communications, and consumer markets.
The 1N6106A belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 20–24V power rail protection where stable clamping and temperature insensitivity are critical.
FAQ
What is the maximum continuous operating voltage for the 1N6106A?
The 1N6106A has a reverse stand-off voltage (VRWM) of 22V, meaning it can continuously block up to 22V DC without significant leakage or conduction. This makes it suitable for protecting 20V–22V power rails such as USB PD VBus and industrial 24V auxiliary supplies where nominal operation stays within this limit. Exceeding 22V risks premature conduction and accelerated wear.
How does the 1N6106A achieve stable clamping voltage across varying surge currents?
The 1N6106A achieves stable clamping via a surge-rated FET architecture: a precision trigger circuit activates the shunt FET when transient voltage exceeds breakdown, and the FET's RDS(on) decreases under high current, maintaining clamping near 27.5–28V from 24A to 40A. This contrasts with TVS diodes whose clamping rises linearly with current due to fixed dynamic resistance.
Can the 1N6106A be used for protecting high-speed data lines like USB SuperSpeed?
No - the 1N6106A is not suitable for USB SuperSpeed (SS), DP, or DM lines due to its 175pF junction capacitance, which would severely degrade signal integrity. It is intended exclusively for 22V power or low-speed control lines (e.g., CC, SBU, VBus). For SS lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25pF).
What is the recommended PCB layout for optimal performance of the 1N6106A?
Place the 1N6106A as close as possible to the protected connector. Connect all three input pins (4–6) via a single short, wide trace to the protected line, and tie all three ground pins (1–3) directly to a solid ground plane using multiple vias. Avoid thermal pads - energy is dissipated internally. This minimizes parasitic inductance and ensures full 40A surge capability.
Is the 1N6106A RoHS compliant and halogen free?
Yes - the 1N6106A uses Pb-free, halogen-free molding compound rated UL 94V-0, with lead-free terminal finish and RoHS/WEEE compliance confirmed in Semtech's official datasheet. It meets global environmental regulations for industrial and consumer electronics manufacturing without exemptions.
1N6106A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.6V
- 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:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
1N6106A FAQ
1.How can I place an order for 1N6106A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6106A 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 1N6106A reliable?
The price and inventory of 1N6106A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6106A is usually 5 days.
3.What payment methods are accepted for 1N6106A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6106A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6106A?
1N6106A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6106A 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 1N6106A?
For technical support, including 1N6106A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6106A requirements.
6.How does Aetrix verify that 1N6106A is sourced from the original manufacturer or authorized distributors?
All 1N6106A 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 1N6106A meets industry standards.
7.What is the process for return or replacement of 1N6106A?
All 1N6106A units undergo pre-shipment inspection (PSI). If there is an issue with 1N6106A, 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 1N6106A part is unused and in its original packaging.
Return procedure for 1N6106A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6106A Tags
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