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Semtech Corporation 1N6164AUS
- Part No.:
- 1N6164AUS
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SQ-MELF
- Datasheet:
-
1N6164AUS.pdf
- Description:
- TVS DIODE 62.2VWM 112.8VC
- Quantity:
- Payment:
- Shipping:
Inventory:3,557
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Product details
Overview
1N6164AUS 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 24–40A, and 20mΩ dynamic resistance. It protects USB PD, Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the 1N6164AUS 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 1N6164AUS 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, it maintains near-constant clamping voltage due to decreasing RDS(on) under surge conditions.
Its functional architecture separates input (pins 4–6) and ground (pins 1–3) terminals with low-inductance parallel routing, enabling stable 27.5–28V clamping across –40°C to +125°C and 24–40A IPP, while delivering 1120W peak pulse power and 175pF junction capacitance at 22V reverse bias.
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 24–40A (1.2/50μs + 8/20μs combo wave, RS = 2Ω) - ensures downstream ICs like USB PD controllers remain below damage threshold during surge. |
| Peak Pulse Current | 40A (8/20μs) - supports compliance with IEC 61000-4-5 ±1kV surge testing on 42Ω source impedance lines. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - enables robust handling of human-body-model ESD events in handheld and connector-facing applications. |
| Dynamic Resistance | 20mΩ (measured 1–40A, 8/20μs) - contributes to flat clamping curve and minimal voltage rise under increasing surge current. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for VBus protection without signal integrity impact on DC/low-frequency power lines. |
Pinout & Package
1N6164AUS is housed in a RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad not required; all six terminals are surface-mount, with pins 1–3 assigned to GND and pins 4–6 to IN for parallel low-inductance connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to minimize inductance and maximize 40A capability. |
| Pins 4, 5, 6 | IN | Parallel-connected input terminals for protected line (e.g., USB PD VBus); shared connection ensures uniform current sharing and optimal clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage vs. IPP | 27.5–28V over full 24–40A range - eliminates need for derating at high temperatures or currents, unlike TVS diodes. |
| Low dynamic resistance | 20mΩ - reduces IR drop during surge, enabling tighter clamping control and lower thermal stress on protected FETs. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz) - protects against repetitive fast transients in industrial motor drives and PLC I/O. |
| Thermal stability | Clamping voltage unchanged from –40°C to +125°C - guarantees consistent protection in automotive under-hood or industrial ambient conditions. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–22V VBus lines in USB-C ports supporting up to 100W PD, exposed to ESD at connectors and lightning-induced surges on long cables. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at Type-C receptacle, shunting surge energy to ground before reaching PD controller or DC-DC converter. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents overvoltage damage to 24V-tolerant PD controllers where standard TVS would exceed 35V at 125°C. |
Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., HS2950P) in remote meters, robotics, and IoT gateways subject to field-installed wiring surges. IC Role / Device Role / Timing Role: Primary front-end protector on VIN rail, limiting transient overvoltage to preserve internal FET gate oxide integrity and prevent latch-up. Use Value: 40A surge rating and 1120W peak power absorption protect load switch MOSFETs rated ≤30V, avoiding costly failure modes in unattended equipment. |
| IoT Device Power Rail Protection | Notebook/Tablet DC Input Protection |
Use Scenario: Securing 22V auxiliary power inputs in battery-powered edge sensors and wireless gateways deployed in electrically noisy factory or outdoor environments. IC Role / Device Role / Timing Role: Standalone EOS guard on main DC input, coordinated with upstream fuse and downstream LDO to form multi-layer protection chain. Use Value: 175pF capacitance avoids filtering issues on 22V rails, while ±30kV ESD rating ensures reliability during manual handling and docking operations. |
Use Scenario: Hardening 20V DC-in ports on ultrabooks and 2-in-1 tablets against accidental AC adapter misconnection and ESD from user interaction. IC Role / Device Role / Timing Role: First-line transient suppressor between barrel jack and system PMIC, absorbing energy before it reaches buck converters or battery charge ICs. Use Value: Stable clamping at 27.5–28V allows safe margin below 30V absolute maximum ratings of common PMICs, reducing BOM count versus dual-stage TVS solutions. |
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 device - same die, package, and specifications; 1N6164AUS is Semtech's alternate ordering code for TDS2211P. | No functional difference; used interchangeably in BOMs and schematics per Semtech documentation. | Select based on distributor stock or legacy procurement preference; no redesign or validation needed. |
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 12.3A, higher dynamic resistance (~0.5Ω), clamping rises with temperature and current. | Suitable only for lower-energy threats (<12A) or ambient-temperature-limited designs; cannot meet 40A/28V requirement. | Use only if cost sensitivity outweighs performance - requires thermal derating and fails to match 1N6164AUS clamping stability. |
Compared with SMAJ22A, 1N6164AUS delivers 40A surge handling with 28V clamping and zero thermal drift, whereas SMAJ22A clamps >38V at 24A and 125°C - making 1N6164AUS essential for high-reliability 22V bus protection where voltage margin is constrained.
Availability
1N6164AUS is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch interfaces, and IoT device power rails requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/WEEE compliance.
Supply support for 1N6164AUS 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 1N6164AUS belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-energy EOS applications where stable clamping and temperature independence are critical.
FAQ
What is the exact package type and dimensions of the 1N6164AUS?
The 1N6164AUS uses a DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with no exposed thermal pad. Pins 1–3 are GND; pins 4–6 are IN. All six terminals are surface-mount and require parallel PCB routing per Semtech layout guidelines to achieve full 40A surge rating.
How does the 1N6164AUS differ from standard TVS diodes in clamping behavior?
Unlike standard TVS diodes whose clamping voltage rises linearly with peak pulse current (VC = VBR + IPP × RDYN), the 1N6164AUS uses a triggered FET architecture that maintains 27.5–28V clamping across 24–40A and –40°C to +125°C - eliminating thermal and current-dependent derating.
Is the 1N6164AUS suitable for protecting USB Type-C VBus lines operating up to 20V?
Yes - the 1N6164AUS has a 22V working voltage and 27.5–28V clamping, providing a safe 7–8V margin below typical 30V absolute maximum ratings of USB PD controllers. Its ±30kV ESD rating and 40A surge capability align with USB-IF and IEC 61000-4-5 requirements for Type-C endpoints.
What is the junction capacitance of the 1N6164AUS, and does it affect power rail performance?
The 1N6164AUS exhibits 175pF junction capacitance at 22V reverse bias and 1MHz - negligible for DC and low-frequency power rails like USB PD VBus. It introduces no measurable ripple or regulation impact, unlike high-capacitance TVS devices that can destabilize feedback loops.
Can the 1N6164AUS replace SMAJ22A in an existing design without layout changes?
No - the 1N6164AUS uses a 6-pin DFN package while SMAJ22A is DO-214AC (SMA). Direct replacement requires PCB redesign. However, the 1N6164AUS offers superior performance: 40A vs. 12.3A rating, 28V vs. 35.5V clamping, and stable operation across temperature - justifying layout update for critical applications.
1N6164AUS 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):
- 62.2V (Max)
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 112.8V
- Current - Peak Pulse (10/1000µs):
- 13.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
1N6164AUS FAQ
1.How can I place an order for 1N6164AUS through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6164AUS 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 1N6164AUS reliable?
The price and inventory of 1N6164AUS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6164AUS is usually 5 days.
3.What payment methods are accepted for 1N6164AUS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6164AUS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6164AUS?
1N6164AUS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6164AUS 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 1N6164AUS?
For technical support, including 1N6164AUS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6164AUS requirements.
6.How does Aetrix verify that 1N6164AUS is sourced from the original manufacturer or authorized distributors?
All 1N6164AUS 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 1N6164AUS meets industry standards.
7.What is the process for return or replacement of 1N6164AUS?
All 1N6164AUS units undergo pre-shipment inspection (PSI). If there is an issue with 1N6164AUS, 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 1N6164AUS part is unused and in its original packaging.
Return procedure for 1N6164AUS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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