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Semtech Corporation JAN1N6471
- Part No.:
- JAN1N6471
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- Axial
- Datasheet:
-
JAN1N6471.pdf
- Description:
- TVS UNI 12V 1500W HR
- Quantity:
- Payment:
- Shipping:
Inventory:7,024
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Product details
Overview
JAN1N6471 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 DFN 1.6×1.6mm 6-lead package - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the JAN1N6471 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature (−40°C to +125°C), dynamic resistance of 20mΩ, junction capacitance of 175pF at 22V, and compatibility with ±1kV IEC 61000-4-5 surge testing on unsymmetrical lines.
Technical Context
The JAN1N6471 uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit when transient voltage exceeds breakdown threshold. Unlike conventional TVS diodes, it maintains near-constant clamping voltage due to decreasing RDS(on) under surge conditions.
It operates as a shunt device between protected line (pins 4–6) and ground (pins 1–3), delivering low dynamic resistance (20mΩ), stable 27.5–28V clamping up to 40A, and minimal temperature drift - verified from −40°C to +125°C per IEC 61000-4-5 and IEC 61000-4-2 test standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC bus voltage before leakage or conduction begins. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - ensures protected ICs (e.g., USB PD controllers) remain below damage threshold during worst-case surge. |
| Peak Pulse Current | 40A (8/20μs) - supports compliance with IEC 61000-4-5 Level 4 industrial surge immunity. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - eliminates need for secondary ESD stages in high-reliability interfaces. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough for 22V power rail protection without signal integrity impact. |
| Dynamic Resistance | 20mΩ - enables flat clamping curve; reduces voltage overshoot versus TVS diodes with fixed RDYN. |
| Operating Temperature | −40°C to +125°C - validated clamping stability across full industrial ambient range. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, Pb-free, RoHS-compliant, UL 94V-0 molding compound. Exposed thermal pad not required; all pins must be connected for rated surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to minimize inductance and maximize 40A capability. |
| Pins 4, 5, 6 | IN | Protected line input; tied together to handle high-current transients across single 22V bus (e.g., VBUS in USB PD). |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies <0.5V from 24A to 40A (8/20μs), unlike TVS diodes whose VC rises linearly with IPP. |
| Temperature-stable protection | Clamping remains 27.5–28V across −40°C to +125°C - critical for industrial equipment operating in uncontrolled environments. |
| Low dynamic resistance | 20mΩ enables efficient energy diversion with minimal IR drop, reducing thermal stress during repeated surges. |
| High-energy ESD rating | ±30kV contact/air meets IEC 61000-4-2 Level 4 - sufficient for handheld and field-deployed IoT devices. |
| Compact DFN footprint | 1.6×1.6mm saves >60% board area vs. legacy SO-8 or SOT-23 TVS solutions at same 40A rating. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Front-End Protection |
|---|---|
Use Scenario: Protecting 20–22V VBUS lines in USB-C PD ports against lightning-induced surges and connector hot-plug ESD. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at connector, clamping transients before reaching PD controller or load switch. Use Value: Maintains 27.5–28V clamping at 40A and 125°C - prevents overvoltage damage to sensitive PD controllers where standard TVS would exceed 35V. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) exposed to 42Ω/0.5μF ±1kV surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary front-end protector absorbing surge energy before it reaches the load switch's internal FET gate oxide. Use Value: Prevents gate-oxide rupture by limiting transient voltage to ≤28V - extends reliability in remote meters, robotics, and factory automation systems. |
| IoT Edge Node Power Rail Protection | Storage Device 22V Backup Supply Protection |
Use Scenario: Securing 22V auxiliary rails in battery-backed IoT gateways subjected to EFT bursts (±4kV, 5/50ns) and ESD events. IC Role / Device Role / Timing Role: Solid-state EOS suppressor replacing Zener-based clamps, providing faster response and lower leakage (<600nA). Use Value: Enables ultra-low standby current design while meeting IEC 61000-4-4 EFT immunity - critical for multi-year battery life in edge sensors. |
Use Scenario: Protecting 22V backup power inputs in NVMe SSDs and enterprise storage controllers against power-rail transients during hot-swap or grid fluctuation. IC Role / Device Role / Timing Role: High-energy shunt device placed upstream of PMIC regulators to prevent latch-up or brownout during surge events. Use Value: Delivers 1120W peak pulse power handling without derating - ensures uninterrupted operation during 8/20μs surges common in datacenter power distribution. |
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 24.7A (8/20μs); higher RDYN (~0.5Ω); 300pF capacitance. | Larger clamping voltage swing with temperature and current; less suitable for 22V systems with tight margin. | Lower-cost option where clamping voltage margin >7V exists and EFT immunity is secondary. |
| TPD2E007DRYR | Low-capacitance (1.5pF) dual-channel ESD protector; 22V working voltage; rated only for 4A (8/20μs); no IEC 61000-4-5 surge rating. | Designed for high-speed data lines (e.g., USB 2.0), not power rails; insufficient for 40A surge events. | Only appropriate for signal-line ESD-only protection; cannot replace JAN1N6471 in power-rail EOS applications. |
Compared with SMAJ22A and TPD2E007DRYR, JAN1N6471 uniquely delivers stable 27.5–28V clamping across 40A and −40°C to +125°C - making it the sole option among the three qualified for 22V industrial power rail surge immunity per IEC 61000-4-5 and IEC 61000-4-2.
Availability
JAN1N6471 is available at Aetrix Electronics and suitable for USB Type-C PD designs, industrial load switch protection, and IoT edge node power rail applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for JAN1N6471 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 signal integrity.
JAN1N6471 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-energy EOS applications where clamping stability, temperature resilience, and compact size are critical.
FAQ
What is the clamping voltage behavior of JAN1N6471 under varying surge currents?
JAN1N6471 exhibits exceptionally stable clamping: 27.5–28V at both 24A and 40A (8/20μs), confirmed across −40°C to +125°C. This flat response results from its FET-based architecture, where RDS(on) decreases under surge, unlike TVS diodes whose clamping rises linearly with current. The JAN1N6471 datasheet specifies this behavior as guaranteed by design.
Can JAN1N6471 be used for bidirectional transient protection?
No - JAN1N6471 is a unidirectional shunt suppressor optimized for positive-going transients on 22V DC rails. Its electrical characteristics (e.g., reverse stand-off voltage VRWM = 22V, forward voltage VF = 0.5V) confirm asymmetric operation. For bidirectional protection, a separate solution such as back-to-back TDS devices or a dedicated bidirectional suppressor is required.
What is the recommended PCB layout for optimal surge performance of JAN1N6471?
Place JAN1N6471 within 2mm of the protected connector. Connect all three IN pins (4–6) via a single low-inductance trace to the protected line, and tie all three GND pins (1–3) directly to a solid ground plane using ≥3 vias. Avoid thermal pads - energy is dissipated in the silicon FET, not the package. This layout minimizes parasitic inductance and ensures full 40A capability.
How does JAN1N6471 compare to standard TVS diodes in temperature-dependent clamping performance?
JAN1N6471 clamping voltage remains constant (27.5–28V) from −40°C to +125°C, whereas standard TVS diodes show significant rise - e.g., a typical 22V TVS may clamp at ~32V at 25°C and >38V at 125°C. This stability stems from the JAN1N6471's active trigger+FET architecture, eliminating junction-based thermal drift inherent in pn-junction TVS devices.
Is JAN1N6471 compliant with RoHS and halogen-free standards?
Yes - JAN1N6471 uses Pb-free terminations and halogen-free molding compound, meeting RoHS Directive 2011/65/EU and WEEE requirements. Its package carries UL 94V-0 flammability rating, and marking includes date code and "T22" identifier per Semtech's tape-and-reel specification (3,000 units per 7″ reel).
JAN1N6471 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12V
- Voltage - Breakdown (Min):
- 13.6V
- Voltage - Clamping (Max) @ Ipp:
- 22.6V
- Current - Peak Pulse (10/1000µs):
- 66A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/552
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
JAN1N6471 FAQ
1.How can I place an order for JAN1N6471 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N6471 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 JAN1N6471 reliable?
The price and inventory of JAN1N6471 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N6471 is usually 5 days.
3.What payment methods are accepted for JAN1N6471?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N6471 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N6471?
JAN1N6471 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N6471 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 JAN1N6471?
For technical support, including JAN1N6471 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N6471 requirements.
6.How does Aetrix verify that JAN1N6471 is sourced from the original manufacturer or authorized distributors?
All JAN1N6471 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 JAN1N6471 meets industry standards.
7.What is the process for return or replacement of JAN1N6471?
All JAN1N6471 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N6471, 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 JAN1N6471 part is unused and in its original packaging.
Return procedure for JAN1N6471:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N6471 Tags
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