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Semtech Corporation 1N6131A
- Part No.:
- 1N6131A
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- Axial
- Datasheet:
-
1N6131A.pdf
- Description:
- TVS DIODE 83.6VWM 151.3VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:2,252
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Product details
Overview
1N6131A 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 24–40A, and 20mΩ dynamic resistance. It protects USB Type-C power delivery buses and industrial load switch inputs.
For engineers reviewing the 1N6131A 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 PD and load switch input protection.
Technical Context
The 1N6131A 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 due to decreasing RDS(on) under surge conditions.
It operates across –40°C to +125°C with stable 22V reverse stand-off voltage, <600nA leakage at VRWM, and 175pF junction capacitance at 22V/1MHz-enabling robust protection without signal integrity compromise in high-speed interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD bus and industrial 24V rail systems without derating. |
| Clamping Voltage | 27.5–28V at 24–40A (1.2/50μs + 8/20μs combo wave) - stays below 29V across full surge range, protecting 30V-tolerant controllers. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge requirements. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD immunity standards. |
| Dynamic Resistance | 20mΩ - ensures minimal voltage rise under surge, enabling predictable low-clamp behavior. |
| Junction Capacitance | 175pF at 22V/1MHz - compatible with DC-coupled 22V power rails and low-speed control lines. |
| Operating Temperature | –40°C to +125°C - supports extended-range industrial and automotive under-hood applications. |
Pinout & Package
1N6131A is housed in a Pb-free, RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with UL 94V-0 molding compound. All six terminals are surface-mount; no thermal pad required-energy is dissipated within the integrated FET structure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for surge current; all three must be connected to maximize current handling and minimize inductance. |
| 4, 5, 6 | IN | Protected line input; tied together to distribute surge current across parallel paths and reduce trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based clamping architecture | Delivers flat clamping voltage (27.5–28V) across 24–40A, unlike TVS diodes whose VC rises linearly with IPP. |
| Temperature-stable clamping | Clamping voltage varies ≤0.5V from –40°C to +125°C-critical for industrial equipment operating in wide ambient ranges. |
| Low dynamic resistance | 20mΩ enables efficient energy diversion with minimal IR drop, preserving protection margin under high-current surges. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz) - safeguards against repetitive fast transients in motor drives and PLCs. |
| DFN-6 footprint | 1.6mm × 1.6mm area saves >60% board space vs. SO-8 TVS solutions while maintaining 1120W peak power rating. |
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 between connector and PD controller or load switch input. Use Value: Maintains clamping at ≤28V across temperature and current-prevents damage to 30V-rated PD controllers where traditional TVS would exceed 35V at 125°C. |
Use Scenario: Safeguarding enable and input pins of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation. IC Role / Device Role / Timing Role: Primary EOS shunt device absorbing 40A surges before they reach the load switch's internal FET gate or drain. Use Value: Limits voltage stress on the load switch to <28V during 1.2/50μs surges-avoids latch-up or permanent gate oxide damage in high-reliability systems. |
| IoT Edge Node Power Rail Protection | Storage Device 22V Backup Supply Protection |
|
Use Scenario: Securing 22V auxiliary rails in battery-backed IoT gateways exposed to field ESD and induced surges via long sensor cables. IC Role / Device Role / Timing Role: Standalone EOS protector on DC input rail upstream of DC-DC converters and PMICs. Use Value: 175pF capacitance avoids filtering interference on 22V bias rails, while ±30kV ESD rating ensures survivability in unshielded deployments. |
Use Scenario: Protecting 22V backup supplies in NVMe SSD enclosures and enterprise storage controllers subject to hot-plug transients. IC Role / Device Role / Timing Role: Clamping device on VCC_BKUP line, placed adjacent to connector to minimize inductive coupling. Use Value: 1120W peak power rating handles multiple 8/20μs surges without degradation-ensuring data integrity during unexpected power 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 12.3A (8/20μs); higher RDYN causes VC rise to ~42V at 40A. | Limited to lower-energy surges; unsuitable for sustained 40A events or high-temp operation where clamping drift exceeds safe margins. | Select only if cost sensitivity outweighs clamping stability and surge endurance requirements. |
| TDS2211P | Same FET-based architecture, identical 22V/40A/28V spec set, and DFN-6 footprint-but differs in marking code and reel packaging. | Functionally identical; used interchangeably in USB-C and load switch designs per Semtech application notes. | Valid drop-in alternative with same electrical and thermal performance-no PCB or firmware changes required. |
Compared with SMAJ22A, 1N6131A delivers superior clamping stability and 3.2× higher peak power handling; versus TDS2211P, it shares identical specifications and mechanical form-differing only in part numbering convention and traceability labeling.
Availability
1N6131A is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT edge node power rails requiring stable component supply, consistent surge performance, and long-term lifecycle support.
Supply support for 1N6131A 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 protection, sensing, and signal integrity.
The 1N6131A belongs to Semtech's Transient Diverting Suppressor (TDS) family-engineered to replace conventional TVS diodes in high-reliability 22V power and interface protection applications where clamping stability and surge endurance are critical.
FAQ
What is the maximum clamping voltage of the 1N6131A under full-rated surge conditions?
The 1N6131A clamps at 27.5–28V when subjected to 40A peak pulse current (tp = 8/20μs) using the IEC 61000-4-5 combination waveform (1.2/50μs voltage + 8/20μs current, RS = 2Ω). This value is guaranteed across –40°C to +125°C and reflects the device's FET-based architecture, not a fixed-junction TVS characteristic.
Is the 1N6131A pin-compatible with standard TVS diodes in DFN-6 packages?
No-the 1N6131A uses a unique 3-pin input / 3-pin ground configuration (pins 4–6 = IN, pins 1–3 = GND), unlike typical bidirectional TVS diodes that use single-input/single-ground topologies. Its pinout requires dedicated PCB layout per Semtech's recommended land pattern and via placement guidelines.
Can the 1N6131A be used to protect high-speed data lines like USB SuperSpeed or PCIe?
No-the 1N6131A has 175pF junction capacitance at 22V, making it unsuitable for signal lines above ~10MHz. It is intended exclusively for DC-coupled power rails and low-speed control lines (e.g., USB-C CC, VCONN, or load switch EN). For data lines, Semtech recommends RClamp3371ZC (<0.25pF).
Does the 1N6131A require a thermal pad or heatsink for 40A surge handling?
No-unlike discrete MOSFETs or high-power TVS arrays, the 1N6131A dissipates surge energy internally via its integrated surge-rated FET and trigger circuit. Semtech explicitly states no thermal pad is needed; PCB copper pour and multiple vias to ground plane suffice for thermal management during transient events.
How does the 1N6131A's ESD performance compare to IEC 61000-4-2 Level 4?
The 1N6131A exceeds IEC 61000-4-2 Level 4 (±15kV contact / ±15kV air) with ±30kV contact and ±30kV air discharge ratings-double the minimum requirement. This margin ensures robust field reliability in handheld, kiosk, and industrial HMI environments where repeated ESD exposure is expected.
1N6131A 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):
- 83.6V
- Voltage - Breakdown (Min):
- 104.5V
- Voltage - Clamping (Max) @ Ipp:
- 151.3V
- Current - Peak Pulse (10/1000µs):
- 3.3A
- 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
1N6131A FAQ
1.How can I place an order for 1N6131A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6131A 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 1N6131A reliable?
The price and inventory of 1N6131A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6131A is usually 5 days.
3.What payment methods are accepted for 1N6131A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6131A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6131A?
1N6131A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6131A 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 1N6131A?
For technical support, including 1N6131A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6131A requirements.
6.How does Aetrix verify that 1N6131A is sourced from the original manufacturer or authorized distributors?
All 1N6131A 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 1N6131A meets industry standards.
7.What is the process for return or replacement of 1N6131A?
All 1N6131A units undergo pre-shipment inspection (PSI). If there is an issue with 1N6131A, 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 1N6131A part is unused and in its original packaging.
Return procedure for 1N6131A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6131A Tags
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