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Semtech Corporation 1N6103
- Part No.:
- 1N6103
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- Axial
- Datasheet:
-
1N6103.pdf
- Description:
- TVS DIODE 5.7VWM 11.8VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,291
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Product details
Overview
1N6103 from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated I/O or power 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 - deployed in USB Type-C PD input protection and industrial load switch inputs.
For engineers reviewing the 1N6103 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 1N6103 uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt FET when EOS voltage exceeds breakdown - enabling near-constant clamping independent of peak pulse current. Its operation avoids the linear VC = VBR + IPP × RDYN behavior typical of conventional TVS diodes.
Clamping voltage remains stable at ~27.6–28V from −40°C to +125°C and across 24A–40A surge currents (1.2/50μs voltage + 8/20μs current combination waveform, RS = 2Ω), with reverse stand-off voltage of 22V and breakdown voltage of 25–27.9V at 1mA.
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 (40A) | 27.6–28V - maximum voltage seen by downstream IC during 40A 8/20μs surge, ensuring safe margin below 30V-rated PD controllers. |
| Peak Pulse Current | 40A (8/20μs) - supports compliance with IEC 61000-4-5 ±1kV (RS = 42Ω) industrial surge testing. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - enables robust handling of human-body-model ESD events in portable and connector-facing applications. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for USB PD bus protection without signal integrity degradation. |
| Dynamic Resistance | 20mΩ - ensures minimal voltage rise under high di/dt transients, critical for maintaining tight clamping control. |
| Package | DFN 1.6mm × 1.6mm × 0.55mm, 6-lead - enables high-density placement adjacent to USB-C connectors or load switch inputs. |
Pinout & Package
1N6103 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 GND; pins 4–6 are IN (parallel-connected for full 40A rating).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three must be soldered to maximize current sharing and minimize inductance. |
| 4, 5, 6 | IN | Parallel-connected input terminals for protected line (e.g., VBUS); connection of all three ensures rated 40A capability and balanced layout. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage vs. current | 27.5–28V across 24–40A (8/20μs), eliminating design margin inflation needed with conventional TVS diodes. |
| Temperature-stable clamping | Clamping remains ~27.6V from −40°C to +125°C - enables reliable protection in automotive and industrial ambient conditions. |
| Low dynamic resistance | 20mΩ - reduces IR drop under fast-rising surges, preserving clamping accuracy and reducing thermal stress. |
| High-energy EOS protection | 1120W peak pulse power (8/20μs) - supports repeated surge events without parameter drift or failure. |
| Ultra-low leakage | ≤600nA at 22V - prevents measurable loading on 22V power rails or high-impedance sensor interfaces. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting VBUS lines in USB-C ports supporting up to 20V/5A PD negotiation, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector, shunting EOS energy to ground before reaching PD controller or e-fuse. Use Value: Maintains clamping at ≤28V across temperature and current - preventing damage to 30V-maximum-input PD controllers where conventional TVS would exceed 35V at 125°C. |
Use Scenario: Safeguarding input of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Primary front-end surge clamp, limiting voltage across load switch FET's drain-source during 1kV/42Ω surge events. Use Value: Keeps clamping voltage below 28V - well under typical 30–40V VDS(max) ratings of integrated load switches, avoiding catastrophic FET failure. |
| IoT Device Power Rail Protection | Notebook/Tablet Main Power Input Protection |
|
Use Scenario: Securing 22V-capable power inputs on battery-powered edge sensors, gateways, and wireless modules subject to field ESD and induced transients. IC Role / Device Role / Timing Role: Single-device EOS solution replacing multi-component TVS+RC networks, minimizing BOM count and PCB area. Use Value: 175pF capacitance and 600nA leakage allow direct integration without degrading efficiency or standby current in always-on IoT nodes. |
Use Scenario: Protecting main DC input (e.g., 20V adapter rail) in ultrabooks and tablets against accidental adapter surges and connector hot-plug transients. IC Role / Device Role / Timing Role: High-reliability clamping element co-located with input connector, coordinated with low-capacitance TVS on data lines. Use Value: Enables compact 1.6×1.6mm footprint while delivering ±30kV ESD and 40A surge robustness - meeting OEM reliability targets without thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Same device; 1N6103 is Semtech's alternate orderable part number for TDS2211P per official ordering documentation. | Identical functional and mechanical specification; used interchangeably in BOMs and layouts. | Select 1N6103 when sourcing through distribution channels listing this part number; identical performance and qualification. |
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V clamping at 12.5A (8/20μs), 1.5Ω dynamic resistance - no constant-clamp architecture. | Limited to lower-energy surges; clamping rises to >40V at 40A and increases with temperature - unsuitable for 30V-margin PD controllers. | Use only where cost is primary constraint and surge energy is limited to <15A; requires larger layout margin due to higher clamping and thermal sensitivity. |
Compared with SMAJ22A, 1N6103 delivers 30% lower clamping voltage at full 40A, stable performance across −40°C to +125°C, and eliminates thermal derating - making it essential for USB PD, industrial load switches, and high-reliability 22V rail protection where voltage margin is constrained.
Availability
1N6103 is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch inputs, and IoT power rail protection requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for 1N6103 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 precision sensing, protection, and connectivity.
The 1N6103 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-voltage, high-energy EOS applications demanding stable clamping and temperature resilience.
FAQ
What is the exact relationship between 1N6103 and TDS2211P?
The 1N6103 is Semtech's official alternate orderable part number for the TDS2211P device. Both share identical electrical specifications, package dimensions (DFN 1.6×1.6mm), pinout, marking (T22), and qualification data. Per Semtech's ordering information table, TDS2211P.C and 1N6103 refer to the same silicon and assembly - enabling seamless BOM substitution without redesign.
Does 1N6103 require a thermal pad or heatsink on the PCB?
No, the 1N6103 does not require a thermal pad or external heatsink. Its energy dissipation occurs within the silicon die during transient events, and the DFN package is designed for direct PCB copper connection without thermal enhancement. Semtech explicitly states "no thermal pad is needed" in the datasheet, as surge energy is handled via short-duration FET conduction rather than sustained power dissipation.
Can 1N6103 be used to protect bidirectional data lines like USB DP/DM?
No, the 1N6103 is designed exclusively for unidirectional protection of power or single-ended I/O lines (e.g., VBUS, load switch inputs). It lacks symmetrical clamping and has no specified capacitance or leakage performance for high-speed differential signals. For USB SuperSpeed lines, Semtech recommends RClamp3371ZC (<0.25pF), not 1N6103.
What is the maximum allowable trace length between 1N6103 and the protected connector?
Semtech specifies that 1N6103 must be placed "as close to the connector as possible" - ideally ≤2mm from the USB-C or industrial interface connector. Longer traces increase parasitic inductance, raising clamping voltage during fast ESD events (e.g., 1.2/50μs waveforms). Layout guidelines emphasize straight, wide traces from pins 4–6 to the protected line and multiple vias from pins 1–3 to ground plane to minimize impedance.
Is 1N6103 compliant with automotive AEC-Q200 or industrial IEC 61000-6-2 standards?
The 1N6103 is not AEC-Q200 qualified and is not certified to IEC 61000-6-2. It meets IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (surge) at system level per its datasheet test conditions, but Semtech positions it for industrial, computing, and consumer applications - not automotive safety-critical systems. Its operating temperature range (−40°C to +125°C) supports extended industrial use, but formal automotive qualification is absent.
1N6103 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):
- 5.7V (Max)
- Voltage - Breakdown (Min):
- 6.75V
- Voltage - Clamping (Max) @ Ipp:
- 11.8V
- Current - Peak Pulse (10/1000µs):
- 42.4A
- 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
1N6103 FAQ
1.How can I place an order for 1N6103 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6103 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 1N6103 reliable?
The price and inventory of 1N6103 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6103 is usually 5 days.
3.What payment methods are accepted for 1N6103?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6103 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6103?
1N6103 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6103 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 1N6103?
For technical support, including 1N6103 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6103 requirements.
6.How does Aetrix verify that 1N6103 is sourced from the original manufacturer or authorized distributors?
All 1N6103 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 1N6103 meets industry standards.
7.What is the process for return or replacement of 1N6103?
All 1N6103 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6103, 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 1N6103 part is unused and in its original packaging.
Return procedure for 1N6103:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6103 Tags
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