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Semtech Corporation 1N6164
- Part No.:
- 1N6164
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- Axial
- Datasheet:
-
1N6164.pdf
- Description:
- TVS DIODE 62.2VWM 118.2VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:7,874
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Product details
Overview
1N6164 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), and stable 27.5–28V clamping across temperature and current range - deployed in USB Type-C PD input protection and industrial load switch inputs.
For engineers reviewing the 1N6164 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, real-world clamping behavior vs. conventional TVS, and validated alternatives for 22V bus protection in high-reliability embedded and power delivery systems.
Technical Context
The 1N6164 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 due to decreasing RDS(on) under surge, not fixed dynamic resistance.
It operates across –40°C to +125°C with <20mΩ dynamic resistance (8/20μs), 175pF junction capacitance at 22V/1MHz, and reverse leakage ≤600nA at VRWM - enabling robust protection without thermal derating penalties seen in junction-based TVS devices.
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 (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) - exceeds industrial and consumer ESD immunity requirements without degradation. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for 22V power rail protection; not suitable for high-speed data lines (requires separate low-C TVS). |
| Dynamic Resistance | 20mΩ (8/20μs, 1–40A range) - enables flat clamping curve and minimal voltage rise under increasing surge current. |
Pinout & Package
1N6164 is housed in a Pb-free, RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad (no solder requirement). All six terminals are electrically active: three dedicated ground pins and three parallel input pins - full connection required for rated 40A surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path; all three must be connected to minimize inductance and maximize surge current handling. |
| 4, 5, 6 | IN | Parallel-connected input terminals for protected bus; equal current sharing ensures full 40A rating and balanced thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V from 24A to 40A surge - eliminates need for overrating IPP to meet VC limits. |
| Temperature-stable protection | Clamping remains 27.5–28V from –40°C to +125°C - removes thermal derating calculations required for standard TVS diodes. |
| Low dynamic resistance | 20mΩ enables efficient energy diversion with minimal IR drop - critical for protecting low-voltage-tolerance FETs in load switches. |
| High-energy ESD robustness | ±30kV contact/air rating meets IEC 61000-4-2 Level 4 - supports unshielded connector interfaces in portable and industrial equipment. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBus lines in USB-C receptacles supporting up to 20V/5A PD negotiation, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt device placed between connector and PD controller/load switch, clamping transients before they reach sensitive silicon. Use Value: Maintains 27.5–28V clamp across full temperature range - prevents false OVP trips and ensures PD controller survival where standard TVS would exceed 35V at 125°C. |
Use Scenario: Safeguarding enable and input pins of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Front-end transient diverter that routes surge current away from internal FET gate oxide and drain-source junctions. Use Value: Limits clamping voltage to ≤28V - stays below typical 30V absolute maximum ratings of integrated load switch FETs, preventing catastrophic failure. |
| IoT Device Power Rail Protection | Storage Device 22V Backup Supply Protection |
Use Scenario: Securing 22V auxiliary rails in battery-backed IoT edge nodes subjected to field ESD and induced surges from nearby switching loads. IC Role / Device Role / Timing Role: Standalone transient suppressor on main power input, operating in parallel with bulk capacitance and upstream e-fuse. Use Value: Delivers 40A surge capacity in 1.6×1.6mm footprint - saves >50% board area versus discrete TVS + series impedance solutions while improving reliability. |
Use Scenario: Protecting 22V backup power inputs in NVMe SSDs and enterprise storage controllers against hot-plug transients and system-level coupling events. IC Role / Device Role / Timing Role: Low-capacitance (175pF), low-leakage (≤600nA) protector placed immediately after connector to avoid signal integrity impact on adjacent high-speed traces. Use Value: Enables direct placement at connector with no RC filtering needed - preserves fast response time (<1ns trigger) and avoids bandwidth limitation of capacitive dividers. |
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; higher clamping, no temperature stability. | Higher clamping voltage increases risk of downstream IC damage at elevated temperatures or high IPP. | Use only where cost is primary constraint and 35.5V clamping is acceptable for protected IC's absolute max rating. |
| TDS2211P | Same manufacturer, identical function and pinout; documented as direct replacement with identical DFN-6 footprint and electrical specs. | No change in layout, BOM, or test plan required - drop-in upgrade path for legacy 1N6164 designs. | Preferred for new designs requiring guaranteed clamping stability and full 40A rating; available with same tape-and-reel packaging. |
Compared with SMAJ22A and TDS2211P, the 1N6164 delivers identical clamping performance and package compatibility as TDS2211P but may reflect earlier production revision or alternate marking - both share the same functional specification, thermal behavior, and surge capability per Semtech documentation.
Availability
1N6164 is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and 22V IoT power rail protection requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1N6164 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 protection, signal integrity, and power management.
The 1N6164 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power rail protection where stable clamping and temperature independence are critical.
FAQ
What is the exact clamping voltage of the 1N6164 at 40A surge current?
The 1N6164 clamps at 27.6–28V under IEC 61000-4-5 combination waveform (1.2/50μs voltage + 8/20μs current, RS = 2Ω) at 40A peak pulse current. This value is guaranteed across –40°C to +125°C and reflects the device's FET-based constant-clamp architecture - not a fixed VBR + IPP×RDYN relationship.
Is the 1N6164 pin-compatible with the TDS2211P?
Yes, the 1N6164 is pin-compatible with the TDS2211P: both use the same 6-pin DFN package (1.6mm × 1.6mm × 0.55mm), identical pin configuration (pins 1–3 = GND, pins 4–6 = IN), and share identical electrical specifications per Semtech documentation - enabling direct substitution without PCB changes.
Can the 1N6164 be used on high-speed data lines like USB SuperSpeed or PCIe?
No, the 1N6164 is not suitable for high-speed data lines. Its 175pF junction capacitance at 22V is optimized for power rail or low-frequency I/O protection. For USB SS, DP/DM, or PCIe lanes, Semtech recommends low-capacitance TVS devices such as RClamp3371ZC (<0.25pF) alongside the 1N6164 for comprehensive interface protection.
What is the maximum operating temperature range for the 1N6164?
The 1N6164 is rated for continuous operation from –40°C to +125°C ambient temperature. Its clamping voltage remains stable across this full range - unlike conventional TVS diodes whose VC rises significantly with temperature - making it ideal for automotive under-hood or industrial control cabinet deployments.
Does the 1N6164 require a thermal pad or heatsink on the PCB?
No, the 1N6164 does not require a thermal pad or external heatsink. Energy from transient events is dissipated within the device's surge-rated FET structure, and its DFN package is designed for direct copper connection without thermal enhancement. Layout best practice emphasizes low-inductance grounding via multiple vias to internal ground planes - not thermal mass.
1N6164 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):
- 62.2V (Max)
- Voltage - Breakdown (Min):
- 73.8V
- Voltage - Clamping (Max) @ Ipp:
- 118.2V
- Current - Peak Pulse (10/1000µs):
- 12.7A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
1N6164 FAQ
1.How can I place an order for 1N6164 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6164 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 1N6164 reliable?
The price and inventory of 1N6164 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6164 is usually 5 days.
3.What payment methods are accepted for 1N6164?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6164 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6164?
1N6164 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6164 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 1N6164?
For technical support, including 1N6164 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6164 requirements.
6.How does Aetrix verify that 1N6164 is sourced from the original manufacturer or authorized distributors?
All 1N6164 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 1N6164 meets industry standards.
7.What is the process for return or replacement of 1N6164?
All 1N6164 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6164, 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 1N6164 part is unused and in its original packaging.
Return procedure for 1N6164:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6164 Tags
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