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Semtech Corporation 1N5806US
- Part No.:
- 1N5806US
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- SQ-MELF
- Datasheet:
-
1N5806US.pdf
- Description:
- DIODE GEN PURP 150V 1.1A
- Quantity:
- Payment:
- Shipping:
Inventory:5,382
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Product details
Overview
1N5806US 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, Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the 1N5806US datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, clamping stability across temperature and current, and real-world implementation details for USB Type-C and load switch input protection.
Technical Context
The 1N5806US 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 (VRWM) of 22V, breakdown voltage (VBR) of 25–27.9V at 1mA, and low junction capacitance (175pF at 22V/1MHz), enabling use on high-speed power rails without signal integrity compromise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC bus voltage it can protect without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave) - ensures protected ICs (e.g., USB PD controllers) remain below damage threshold during surge. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 3/4 industrial surge requirements for 22V systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD immunity standards for front-end ports. |
| Dynamic Resistance | 20mΩ - enables flat clamping response and minimizes voltage overshoot during fast-rising transients. |
| Junction Capacitance | 175pF at 22V/1MHz - low enough to avoid degrading power rail stability or coupling noise into adjacent signals. |
Pinout & Package
1N5806US 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 electrically active: three parallel ground pins and three parallel input pins, requiring full connection for rated 40A surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Low-inductance ground return path; all three must be connected via short traces and multiple vias to maximize surge current handling. |
| Pins 4, 5, 6 | IN | Protected line input (e.g., VBus); parallel connection reduces trace inductance and distributes surge current evenly across internal FET channels. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping over current range | 27.5–28V from 24A to 40A - eliminates need for oversized derating to meet voltage margin at high IPP. |
| Stable clamping over temperature | No increase in VC from –40°C to +125°C - enables reliable protection in uncontrolled thermal environments (e.g., industrial enclosures). |
| Ultra-low dynamic resistance | 20mΩ - reduces IR drop during surge, minimizing voltage overshoot beyond clamping level. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz) - withstands repetitive burst noise common in motor drives and switching power supplies. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting the VBus line of a USB Type-C port supporting up to 20V/5A PD negotiation against lightning surges and connector hot-plug transients. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at the connector, shunting surge energy to ground before it reaches the PD controller or load switch. Use Value: Maintains 27.5–28V clamping at 40A and across temperature-well below the 30–33V damage threshold of common PD controllers-without derating. |
Use Scenario: Safeguarding the input of an industrial-grade load switch (e.g., HS2950P) powering remote sensors or actuators subject to induced surges on long cables. IC Role / Device Role / Timing Role: Primary front-end protector absorbing multi-kV transients before they stress the load switch's internal FET gate oxide or drain-source junction. Use Value: Prevents latch-up or permanent failure of the load switch by limiting transient voltage to ≤28V, even during 40A 8/20μs events at 125°C ambient. |
| IoT Device Power Rail Protection | Tablet/Notebook VBus Line Protection |
Use Scenario: Securing the main 22V input rail of battery-powered IoT gateways deployed outdoors or near AC mains infrastructure. IC Role / Device Role / Timing Role: Solid-state EOS protector replacing bulkier TVS arrays, providing single-device compliance with IEC 61000-4-5 Level 4 (4kV) and IEC 61000-4-2 Level 4. Use Value: 1.6mm × 1.6mm footprint saves >60% board area vs. discrete TVS solutions while delivering superior clamping consistency. |
Use Scenario: Hardening the VBus line in thin-profile consumer tablets where thermal headroom and PCB space are constrained. IC Role / Device Role / Timing Role: Low-capacitance (175pF), low-leakage (≤600nA at 22V) protector ensuring no impact on PD negotiation timing or standby current budget. Use Value: Enables robust surge protection without compromising USB PD handshake reliability or battery life in always-on charging states. |
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; clamping rises linearly with current (VC ≈ VBR + IPP × RDYN); VC = 35.5V @ 40A; higher RDYN (~0.5Ω). | Lacks constant-clamp behavior; requires larger voltage margin for same IPP; less suitable for thermally constrained or high-temperature environments. | Select SMAJ22A only if cost sensitivity outweighs clamping precision and thermal stability requirements. |
| TDS2211P | Same die, identical electrical specs and package; 1N5806US is Semtech's alternate orderable part number for TDS2211P per official ordering documentation. | No functional or application difference; fully interchangeable in design, layout, and qualification. | 1N5806US and TDS2211P are identical devices-no redesign or requalification needed when substituting between them. |
Compared with SMAJ22A, 1N5806US delivers 7.5V lower clamping at 40A and stable performance across temperature, enabling tighter system voltage margins; versus TDS2211P, it is the exact same device-only differing in marking and reel packaging designation.
Availability
1N5806US is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch interfaces, and IoT power rail protection requiring stable component supply, consistent surge performance, and long-term lifecycle support.
Supply support for 1N5806US 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 signal integrity.
The 1N5806US belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power rail protection where flat clamping and thermal stability are critical.
FAQ
What is the exact package type and dimensions of the 1N5806US?
The 1N5806US uses a 6-pin DFN package measuring 1.6mm × 1.6mm × 0.55mm with no thermal pad. Pins 1–3 are GND; pins 4–6 are IN. All six pins must be soldered per Semtech's layout guidelines to achieve rated 40A surge capability. The land pattern matches standard DFN-6 footprints with 0.5mm pitch.
Does the 1N5806US require external bias or control signals to operate?
No, the 1N5806US is fully autonomous-no external power, enable pins, or configuration are needed. Its internal trigger circuit activates the shunt FET automatically when transient voltage exceeds ~25V. This makes the 1N5806US a true plug-and-protect solution ideal for space-constrained and low-complexity designs.
How does the clamping voltage of the 1N5806US compare to standard TVS diodes at elevated temperatures?
Unlike standard TVS diodes whose clamping voltage increases with temperature, the 1N5806US maintains 27.5–28V clamping from –40°C to +125°C. At 125°C, a typical 22V TVS (e.g., SMAJ22A) clamps at ~38V-10V higher than the 1N5806US-making the 1N5806US essential for thermally demanding applications like enclosed industrial equipment.
Can the 1N5806US be used on high-speed data lines such as USB SuperSpeed differential pairs?
No-the 1N5806US is intended for power or low-speed I/O lines (e.g., VBus, CC, SBU) due to its 175pF junction capacitance. For USB 3.x/3.2 SuperSpeed TX/RX lines, Semtech recommends low-capacitance TVS devices like RClamp3371ZC (<0.25pF). The 1N5806US should only be applied to the VBus or auxiliary lines in USB Type-C implementations.
Is the 1N5806US pin-compatible with other Semtech TDS devices like TDS2411P or TDS1211P?
No-1N5806US (TDS2211P) has a fixed 22V working voltage and DFN-6 pinout optimized for 22V systems. TDS2411P (24V) and TDS1211P (12V) share the same package and pin configuration but differ in VRWM, VBR, and clamping targets. They are footprint-compatible but not functionally interchangeable without circuit review.
1N5806US Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- SQ-MELF
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 150 V
- Current - Average Rectified (Io):
- 1.1A
- Voltage - Forward (Vf) (Max) @ If:
- 875 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 150 V
- Capacitance @ Vr, F:
- 25pF @ 5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -
1N5806US FAQ
1.How can I place an order for 1N5806US through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5806US 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 1N5806US reliable?
The price and inventory of 1N5806US are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5806US is usually 5 days.
3.What payment methods are accepted for 1N5806US?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5806US transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5806US?
1N5806US orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5806US 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 1N5806US?
For technical support, including 1N5806US datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5806US requirements.
6.How does Aetrix verify that 1N5806US is sourced from the original manufacturer or authorized distributors?
All 1N5806US 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 1N5806US meets industry standards.
7.What is the process for return or replacement of 1N5806US?
All 1N5806US units undergo pre-shipment inspection (PSI). If there is an issue with 1N5806US, 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 1N5806US part is unused and in its original packaging.
Return procedure for 1N5806US:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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