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Semtech Corporation 1N6119A
- Part No.:
- 1N6119A
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- Axial
- Datasheet:
-
1N6119A.pdf
- Description:
- TVS DIODE 27.4VWM 49.9VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:9,601
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Product details
Overview
1N6119A from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated DC 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 1N6119A datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, clamping stability across temperature and current, and real-world use cases in USB Type-C and industrial power rail protection.
Technical Context
The 1N6119A 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 24–40A and −40°C to +125°C - due to decreasing RDS(on) under surge conditions.
It operates with reverse stand-off voltage of 22V, breakdown voltage of 25–27.9V at 1mA, and exhibits only 175pF junction capacitance at 22V/1MHz. Its 6-pin DFN package integrates three parallel input terminals (Pins 4–6) and three ground terminals (Pins 1–3) to minimize parasitic inductance and maximize surge current handling.
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) - ensures protected ICs (e.g., USB PD controllers) remain below damage threshold during worst-case surges. |
| 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 requirements without external shielding. |
| Dynamic Resistance | 20mΩ - enables low-voltage drop during high-current transients, minimizing power dissipation and thermal stress. |
| Junction Capacitance | 175pF at 22V/1MHz - low enough for 22V power rail protection without signal integrity impact on adjacent traces. |
Pinout & Package
1N6119A is housed in a Pb-free, RoHS-compliant DFN package measuring 1.6mm × 1.6mm × 0.55mm with six terminals. The compact footprint enables placement directly at connectors for optimal transient suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Three parallel ground connections - must all be routed to low-inductance ground plane to sustain 40A surge current and minimize voltage overshoot. |
| Pins 4, 5, 6 | IN | Three parallel input terminals - connected together to protected line (e.g., VBus); required for full 40A rating and uniform current sharing. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across 24–40A and −40°C to +125°C - eliminates derating uncertainty in thermal or high-current designs. |
| FET-based shunt topology | Replaces PN-junction TVS with low-RDS(on) MOSFET - reduces energy dissipation in silicon and avoids thermal runaway at elevated ambient temperatures. |
| Low dynamic resistance | 20mΩ measured between 1A–40A - ensures minimal IR drop during surge, preserving voltage margin for downstream regulators and controllers. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz) - protects against repetitive fast transients common in motor drives and industrial PLCs. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting the 20–22V VBus line in USB Type-C ports supporting Power Delivery up to 100W. IC Role / Device Role / Timing Role: Transient diverting suppressor placed between connector and PD controller or load switch. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents overvoltage damage to PD controllers rated for ≤28V absolute max. |
Use Scenario: Safeguarding the input of industrial-grade load switches (e.g., HS2950P) exposed to lightning-induced surges in remote meters or robotics. IC Role / Device Role / Timing Role: Primary EOS protection device placed at board edge before load switch VIN pin. Use Value: Limits transient voltage to ≤28V - keeps internal FET gate-source and drain-source voltages within safe operating area during 40A surges. |
| IoT Device Power Rail Protection | Notebook/Tablet DC Input Protection |
Use Scenario: Securing 22V-rated power inputs in battery-powered IoT gateways subjected to ESD during field servicing or connector mating. IC Role / Device Role / Timing Role: Standalone EOS protector on main DC input rail upstream of PMIC or buck converter. Use Value: Delivers ±30kV ESD robustness without adding series impedance - preserves efficiency and avoids voltage droop during normal operation. |
Use Scenario: Protecting 20V DC input rails in ultrabooks and tablets where space-constrained layouts demand minimal footprint protection. IC Role / Device Role / Timing Role: Compact 1.6×1.6mm DFN suppressor mounted adjacent to barrel jack or USB-C port. Use Value: Achieves 40A surge rating in <2.6mm² area - replaces larger SO-8 or SOT-23 TVS arrays while improving clamping consistency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Identical functional specification, same DFN-6 package, identical marking code T22 - confirmed as direct replacement per Semtech documentation. | No difference - validated for identical USB PD, load switch, and industrial 22V rail use cases. | Select TDS2211P when requiring manufacturer-confirmed part number traceability and full production documentation support. |
| SMAJ22A | Standard unidirectional TVS diode; 22V standoff, 35.5V clamping at 12.3A (8/20μs); no constant-clamp behavior; higher temperature drift. | Limited to lower-energy surges; unsuitable where 40A/28V clamping stability is required (e.g., USB PD compliance). | Choose SMAJ22A only for cost-sensitive, non-critical 22V lines with <15A surge exposure and relaxed clamping tolerance. |
Compared with TDS2211P, 1N6119A offers identical performance and form factor, enabling seamless sourcing flexibility; versus SMAJ22A, 1N6119A delivers 3.2× higher surge current rating and 8.5V lower clamping at rated current - critical for protecting modern 22V power delivery ICs.
Availability
1N6119A 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 and guaranteed EOS immunity performance.
Supply support for 1N6119A 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 semiconductor company specializing in analog and mixed-signal ICs for precision protection, sensing, and signal integrity.
The 1N6119A belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-reliability 20–24V power and interface protection applications.
FAQ
What is the clamping voltage of the 1N6119A at 40A surge current?
The 1N6119A clamps at 27.5–28V under 40A peak pulse current (8/20μs waveform), as specified in its electrical characteristics table. This value remains stable across −40°C to +125°C operating temperature, distinguishing it from conventional TVS diodes whose clamping rises with current and temperature. The 1N6119A achieves this via its FET-based shunt architecture and low 20mΩ dynamic resistance.
Is the 1N6119A pin-compatible with TDS2211P?
Yes - the 1N6119A shares identical pin configuration, DFN-6 package dimensions (1.6mm × 1.6mm × 0.55mm), and terminal assignment (Pins 1–3 = GND, Pins 4–6 = IN) with TDS2211P. Semtech documentation confirms functional and mechanical equivalence, including marking code "T22" and tape-and-reel packaging at 3,000 units per 7-inch reel. The 1N6119A is a valid alternate ordering option for the same design.
Can the 1N6119A protect USB Type-C VBus lines operating at 20V?
Yes - the 1N6119A has a 22V reverse stand-off voltage (VRWM) and 25–27.9V breakdown voltage (VBR), making it explicitly suited for USB Type-C VBus protection where nominal voltage reaches 20V and transient tolerance is up to 22V. Its 27.5–28V clamping at 40A ensures PD controllers (e.g., FUSB302, TUSB7320) remain within their absolute maximum ratings during IEC 61000-4-5 surges.
What is the junction capacitance of the 1N6119A, and why does it matter?
The 1N6119A exhibits 175pF junction capacitance at 22V and 1MHz, measured across its input-to-ground terminals. This low value minimizes high-frequency loading on protected lines - critical for maintaining signal integrity on 22V power rails where excessive capacitance could cause instability in downstream regulators or slow transient response. It also enables use in space-constrained layouts without compromising surge performance.
Does the 1N6119A require a thermal pad on the PCB?
No - the 1N6119A dissipates surge energy primarily through its low-RDS(on) FET channel rather than junction heating, and its DFN package does not include an exposed thermal pad. Semtech's datasheet explicitly states "no thermal pad is needed," and recommends connecting all three GND pins (1–3) and all three IN pins (4–6) directly to solid copper planes using multiple vias to minimize inductance - not thermal mass.
1N6119A 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):
- 27.4V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 10A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
1N6119A FAQ
1.How can I place an order for 1N6119A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6119A 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 1N6119A reliable?
The price and inventory of 1N6119A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6119A is usually 5 days.
3.What payment methods are accepted for 1N6119A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6119A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6119A?
1N6119A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6119A 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 1N6119A?
For technical support, including 1N6119A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6119A requirements.
6.How does Aetrix verify that 1N6119A is sourced from the original manufacturer or authorized distributors?
All 1N6119A 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 1N6119A meets industry standards.
7.What is the process for return or replacement of 1N6119A?
All 1N6119A units undergo pre-shipment inspection (PSI). If there is an issue with 1N6119A, 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 1N6119A part is unused and in its original packaging.
Return procedure for 1N6119A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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