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Semtech Corporation 1N6104
- Part No.:
- 1N6104
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- Axial
- Datasheet:
-
1N6104.pdf
- Description:
- TVS DIODE 6.2VWM 12.7VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:2,401
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Product details
Overview
1N6104 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 1N6104 datasheet, pinout, applications, or equivalent options, this device offers stable clamping across temperature (−40°C to +125°C) and current (24–40A), low 175pF junction capacitance at 22V, and DFN 1.6×1.6mm package compatibility with space-constrained USB and IoT designs.
Technical Context
The 1N6104 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-across 24A to 40A and −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 (It = 1mA), and reverse leakage ≤600nA at VRWM. Its functional architecture enables low dynamic resistance (20mΩ), minimal thermal derating, and superior energy handling versus standard TVS devices in 22V bus protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage on protected line without triggering |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo waveform) - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment |
| ESD Withstand | ±30kV contact & air per IEC 61000-4-2 - exceeds automotive and consumer ESD robustness requirements |
| Dynamic Resistance | 20mΩ - enables flat clamping response and minimizes voltage overshoot during fast transients |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for USB PD VBus protection without signal integrity impact |
| Package | DFN 1.6mm × 1.6mm × 0.55mm, 6-lead - enables high-density placement near connectors with minimal PCB area |
Pinout & Package
1N6104 is housed in a Pb-free, RoHS-compliant DFN 1.6mm × 1.6mm × 0.55mm 6-lead package with exposed thermal pad not required (energy dissipated in silicon). All pins must be connected: pins 1–3 are ground terminals; pins 4–6 are input terminals tied together to the protected line.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | Ground (GND) | Low-inductance return path for surge current; all three must be connected to minimize impedance and maximize 40A capability |
| Pins 4, 5, 6 | Input (IN) | Parallel-connected terminals for EOS/ESD input; direct connection to protected bus (e.g., USB PD VBus) with shortest possible trace |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage stays within 27.5–28V from 24A to 40A and −40°C to +125°C - eliminates design margin uncertainty vs. TVS diodes |
| FET-based shunt protection | Surge-rated MOSFET replaces pn-junction - achieves 20mΩ dynamic resistance and avoids thermal runaway at high ambient temperatures |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - supports industrial lightning surge standards (IEC 61000-4-5 ±1kV, RS = 42Ω) |
| Low-leakage operation | ≤600nA reverse leakage at 22V - prevents battery drain in always-on IoT and portable applications |
| Compact DFN footprint | 1.6mm × 1.6mm area - saves >50% board space vs. SO-8 or SOT-23 TVS solutions for same voltage/current rating |
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/100W PD, exposed to ESD and system-level surges. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed between connector and PD controller or load switch. Use Value: Maintains 27.5–28V clamping at full 40A surge and 125°C ambient - prevents overvoltage damage to sensitive PD controllers where traditional TVS would exceed 35V. |
Use Scenario: Safeguarding input of industrial-grade load switches (e.g., HS2950P) against lightning-induced surges in remote meters and robotics. IC Role / Device Role / Timing Role: Front-end transient suppressor limiting voltage seen by internal FET gate oxide and drain-source junction. Use Value: Clamps below 28V while handling 40A pulses - keeps load switch within safe operating area (SOA), avoiding latch-up or permanent failure during field surges. |
| IoT Device Power Rail Protection | Notebook/Tablet VBus Line Protection |
Use Scenario: Securing 22V-rated power rails in battery-powered IoT edge nodes deployed in electrically noisy environments (e.g., smart sensors in factory floors). IC Role / Device Role / Timing Role: Standalone EOS guard for main supply rail, co-located with input connector or battery interface. Use Value: Delivers ±30kV ESD immunity and 40A surge handling in 1.6mm² footprint - enables compact, ruggedized designs without external heat sinking or layout compromises. |
Use Scenario: Protecting VBus lines in ultraportable notebooks and tablets with USB-C charging, where board space and thermal constraints limit TVS options. IC Role / Device Role / Timing Role: Low-capacitance (175pF), low-clamp suppressor placed directly at USB-C receptacle. Use Value: Provides 22V working voltage and 28V clamping with no signal distortion - preserves PD negotiation integrity and avoids false overvoltage shutdowns during hot-plug events. |
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; 35.1V clamping at 12.7A (8/20μs); higher dynamic resistance (~0.5Ω); 1000pF capacitance | Limited to lower-energy surges; unsuitable for 40A or high-temp industrial use; requires larger layout margin | Select only for cost-sensitive, low-surge consumer applications where clamping voltage margin >10V is acceptable |
| TDS2211P | Same manufacturer, identical function and pinout; differs only in marking code (TDS2211P is Semtech's official part number; 1N6104 is a legacy or alternate designation per distributor cross-reference) | No functional difference; validated for identical USB PD, load switch, and industrial use cases | Preferred for new designs requiring full documentation traceability and direct Semtech support |
Compared with SMAJ22A, 1N6104 delivers 28V clamping at 40A versus 35.1V at 12.7A - enabling robust protection in high-power USB PD and industrial systems. Compared with TDS2211P, 1N6104 is functionally identical but may reflect older packaging or marking; both share same DFN-6 footprint, electrical specs, and qualification data.
Availability
1N6104 is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT device power rail protection requiring stable component supply, long-term lifecycle assurance, and compliance with IEC 61000-4-2/4-4/4-5 standards.
Supply support for 1N6104 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 1N6104 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-energy EOS protection applications where stable clamping, temperature resilience, and compact size are critical.
FAQ
What is the maximum continuous operating voltage for the 1N6104?
The 1N6104 has a reverse stand-off voltage (VRWM) of 22V, meaning it can continuously withstand up to 22V DC on the protected line without entering conduction. This makes it suitable for USB PD VBus lines operating at 20V nominal, with headroom for tolerance and ripple. Exceeding 22V risks premature triggering or degradation.
Does the 1N6104 require a thermal pad on the PCB?
No, the 1N6104 does not require a thermal pad. Its DFN package dissipates surge energy internally via the silicon FET structure, not through conduction to the PCB. Layout guidelines emphasize low-inductance grounding of all three GND pins (1–3) and direct routing of all three IN pins (4–6) - not thermal copper - to maximize surge current handling and minimize voltage overshoot.
How does the 1N6104 clamping performance compare to standard TVS diodes at elevated temperature?
Unlike standard TVS diodes whose clamping voltage rises significantly with temperature, the 1N6104 maintains 27.5–28V clamping from −40°C to +125°C at 40A. This stability stems from its FET-based architecture, where RDS(on) decreases with temperature - counteracting thermal drift. At 125°C, a typical 22V TVS may clamp above 38V, while the 1N6104 remains at ~27.8V.
Can the 1N6104 be used to protect high-speed data lines like USB SuperSpeed?
No, the 1N6104 is not intended for high-speed data line protection. With 175pF junction capacitance at 22V, it is optimized for power/bus lines (e.g., VBus, CC, SBU), not differential pairs. For USB SuperSpeed TX/RX lines, Semtech recommends ultra-low-capacitance devices like RClamp3371ZC (<0.25pF). The 1N6104 should be used only on power or single-ended control lines.
Is the 1N6104 pin-compatible with other Semtech TDS devices?
The 1N6104 shares the same DFN 1.6×1.6mm 6-lead package and pin configuration (pins 1–3 = GND, pins 4–6 = IN) as TDS2211P and other members of the TDS22xx family. However, voltage ratings differ: TDS1211P (12V), TDS1511P (15V), and TDS2211P (22V) are pin-compatible variants. Substituting across voltage grades requires verifying working voltage and clamping alignment with the protected circuit.
1N6104 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):
- 6.2V (Max)
- Voltage - Breakdown (Min):
- 7.38V
- Voltage - Clamping (Max) @ Ipp:
- 12.7V
- Current - Peak Pulse (10/1000µs):
- 39.4A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
1N6104 FAQ
1.How can I place an order for 1N6104 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6104 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 1N6104 reliable?
The price and inventory of 1N6104 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6104 is usually 5 days.
3.What payment methods are accepted for 1N6104?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6104 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6104?
1N6104 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6104 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 1N6104?
For technical support, including 1N6104 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6104 requirements.
6.How does Aetrix verify that 1N6104 is sourced from the original manufacturer or authorized distributors?
All 1N6104 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 1N6104 meets industry standards.
7.What is the process for return or replacement of 1N6104?
All 1N6104 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6104, 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 1N6104 part is unused and in its original packaging.
Return procedure for 1N6104:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6104 Tags
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