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Semtech Corporation 1N6165AUS
- Part No.:
- 1N6165AUS
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SQ-MELF
- Datasheet:
-
1N6165AUS.pdf
- Description:
- TVS DIODE 69.2VWM 125.1VC
- Quantity:
- Payment:
- Shipping:
Inventory:8,666
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Product details
Overview
1N6165AUS 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 20mΩ dynamic resistance. It protects USB PD, USB Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the 1N6165AUS datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature and current, low dynamic resistance, DFN-6 package layout constraints, and compatibility with 22V bus protection requirements in USB Type-C and industrial power interfaces.
Technical Context
The 1N6165AUS 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 the breakdown threshold. Unlike conventional TVS diodes, its clamping voltage remains nearly constant over 24–40A and −40°C to +125°C due to decreasing RDS(on) under surge conditions.
It operates with three parallel input terminals (Pins 4–6) and three ground terminals (Pins 1–3), requiring all six pins to be connected for full 40A rating. Its 175pF junction capacitance at 22V and 1MHz is optimized for DC/power-line protection-not high-speed data lines-making it unsuitable for USB SS or DP/DM lanes.
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) - ensures downstream 24V-rated ICs (e.g., load switches, PD controllers) remain below damage threshold during surge. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD robustness requirements without external shielding. |
| Dynamic Resistance | 20mΩ - enables flat clamping curve; reduces voltage rise per amp of surge current versus TVS diodes (>1Ω typical). |
| Junction Capacitance | 175pF at 22V, 1MHz - suitable for power/bus lines; too high for USB SuperSpeed (requires <0.25pF). |
| Operating Temp | −40°C to +125°C - supports operation in harsh environments including industrial controls and automotive under-hood modules. |
Pinout & Package
1N6165AUS 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 pins must be soldered for rated performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | Ground (GND) | Low-inductance return path for surge current; all three must connect to solid ground plane via multiple vias. |
| Pins 4, 5, 6 | Input (IN) | Parallel-connected surge input terminals; all three must route directly from connector to device for full 40A capability. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage | 27.5–28V across 24–40A and −40°C to +125°C - eliminates derating calculations needed for TVS diodes. |
| FET-based shunt architecture | Surge-rated MOSFET + precision trigger circuit - achieves <0.1Ω effective RDS(on), enabling lower clamping than Zener-based TVS. |
| Low dynamic resistance | 20mΩ - minimizes IR drop during surge, preserving clamping accuracy and reducing thermal stress vs. TVS diodes. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz) - protects against repetitive fast transients in motor drives and PLCs. |
| Space-efficient packaging | 1.6mm × 1.6mm DFN-6 - saves >60% board area vs. SO-8 or SOT-23 TVS solutions rated for comparable surge energy. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBus lines in USB Type-C ports supporting up to 20V PD, where transient overvoltage can damage PD controllers or e-fuses. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed between connector and load switch input, clamping surges before they reach sensitive ICs. Use Value: Maintains 27.5–28V clamping across temperature and current-ensuring PD controller survival even at 125°C ambient, unlike TVS diodes whose clamping rises to >38V. |
Use Scenario: Safeguarding input terminals 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 suppressor absorbing lightning-induced surges (IEC 61000-4-5 ±1kV) before reaching the switch's internal FET. Use Value: Prevents gate oxide damage and latch-up in load switches by limiting transient voltage to ≤28V-well below typical 30V absolute max ratings. |
| IoT Device Power Rail Protection | Storage Device DC Power Interface |
Use Scenario: Securing 22V-rated power inputs in battery-powered IoT gateways exposed to ESD during field servicing or connector mating. IC Role / Device Role / Timing Role: Standalone EOS suppressor on main DC input rail, replacing bulkier multi-diode TVS arrays. Use Value: Delivers ±30kV ESD immunity in minimal footprint-critical for compact enclosures where PCB space and thermal mass are constrained. |
Use Scenario: Protecting SATA or NVMe storage module power connectors from EOS events during hot-plug insertion or power cycling. IC Role / Device Role / Timing Role: Bus-level transient clamp on +22V auxiliary or main power rail feeding SSD controllers and PMICs. Use Value: Ensures reliable operation under repeated 40A surges without parameter drift-validated for >1000 surge events per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech TDS2211P | Identical electrical specs, same DFN-6 package, identical marking code "T22" - confirmed pin-to-pin and functional replacement per Semtech documentation. | No change in layout, BOM, or test plan required; validated for same USB PD, load switch, and industrial use cases. | Select TDS2211P when sourcing from authorized Semtech channels; identical performance and qualification status. |
| Littelfuse SP3022-01UTG | TVS diode (not FET-based); 24V working voltage, 33.6V clamping at 40A, higher dynamic resistance (~1.2Ω), 12pF capacitance. | Lower clamping voltage not guaranteed across temperature; requires derating above 85°C; better suited for low-capacitance data lines, not power rails. | Choose SP3022-01UTG only if ultra-low capacitance is mandatory and clamping stability over temperature is secondary. |
Compared with 1N6165AUS, TDS2211P offers identical protection performance and drop-in compatibility, while SP3022-01UTG trades clamping stability and surge handling for lower capacitance-making it unsuitable as a direct replacement in 22V power-line applications.
Availability
1N6165AUS is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch protection, and IoT device power rail hardening requiring stable component supply and long-term lifecycle support.
Supply support for 1N6165AUS 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 power management, protection, and signal integrity.
The 1N6165AUS belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power-line protection applications demanding stable clamping across temperature and current.
FAQ
What is the clamping voltage behavior of the 1N6165AUS under varying surge current?
The 1N6165AUS maintains a tightly regulated clamping voltage of 27.5–28V across its full rated peak pulse current range (24A to 40A, 8/20μs), unlike standard TVS diodes whose clamping rises linearly with current. This stability results from its FET-based shunt architecture and sub-0.1Ω dynamic resistance, ensuring predictable protection margins regardless of surge magnitude.
Can the 1N6165AUS be used on USB SuperSpeed differential pairs?
No, the 1N6165AUS is not suitable for USB SuperSpeed (TX/RX) or DisplayPort lanes due to its 175pF junction capacitance at 22V-far exceeding the <0.25pF requirement for high-speed signaling integrity. It is specifically designed for DC power and single-ended I/O lines like USB PD VBus or load switch inputs.
Is the 1N6165AUS pin-compatible with other Semtech TDS devices?
Yes-the 1N6165AUS shares the same DFN-6 package, pin configuration (Pins 1–3 = GND, Pins 4–6 = IN), and footprint as Semtech's TDS2211P. Both are documented as functionally identical and pin-to-pin interchangeable in Semtech's official datasheet and ordering information.
What is the maximum operating temperature for continuous use of the 1N6165AUS?
The 1N6165AUS is rated for continuous operation from −40°C to +125°C ambient temperature. Its clamping voltage remains stable across this full range, and its junction temperature is specified up to +150°C, making it suitable for under-hood automotive modules and industrial control cabinets without thermal derating.
Does the 1N6165AUS require a thermal pad or heatsink on the PCB?
No-unlike power MOSFETs or linear regulators, the 1N6165AUS does not require a thermal pad or external heatsink. Its energy dissipation occurs within the silicon die during transient events, and the DFN-6 package is qualified for full 40A surge performance without additional thermal management per Semtech's layout guidelines.
1N6165AUS 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):
- 69.2V (Max)
- Voltage - Breakdown (Min):
- 86.5V
- Voltage - Clamping (Max) @ Ipp:
- 125.1V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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:
- -
1N6165AUS FAQ
1.How can I place an order for 1N6165AUS through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6165AUS 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 1N6165AUS reliable?
The price and inventory of 1N6165AUS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6165AUS is usually 5 days.
3.What payment methods are accepted for 1N6165AUS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6165AUS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6165AUS?
1N6165AUS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6165AUS 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 1N6165AUS?
For technical support, including 1N6165AUS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6165AUS requirements.
6.How does Aetrix verify that 1N6165AUS is sourced from the original manufacturer or authorized distributors?
All 1N6165AUS 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 1N6165AUS meets industry standards.
7.What is the process for return or replacement of 1N6165AUS?
All 1N6165AUS units undergo pre-shipment inspection (PSI). If there is an issue with 1N6165AUS, 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 1N6165AUS part is unused and in its original packaging.
Return procedure for 1N6165AUS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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