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Semtech Corporation JTX1N5822US
- Part No.:
- JTX1N5822US
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- SQ-MELF
- Datasheet:
-
JTX1N5822US.pdf
- Description:
- DIODE SCHOTTKY 40V 3A
- Quantity:
- Payment:
- Shipping:
Inventory:8,502
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Product details
Overview
JTX1N5822US 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 JTX1N5822US datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, temperature-stable clamping behavior, and real-world use cases in USB Type-C and industrial power rail protection.
Technical Context
The JTX1N5822US uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 0–40A (8/20μs) due to decreasing RDS(on) under surge conditions.
It operates from −40°C to +125°C with stable 27.5–28V clamping at rated current, 175pF junction capacitance at 22V/1MHz, and <600nA reverse leakage. Its functional architecture enables low-voltage overshoot suppression where traditional TVS devices exhibit rising clamping with temperature and current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC bus voltage it can protect without leakage or degradation |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - limits transient overvoltage to safe levels for downstream 24V-tolerant ICs like USB PD controllers |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD input stages |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements without external shielding |
| Dynamic Resistance | 20mΩ - ensures minimal voltage rise under high di/dt transients, critical for fast-rising lightning surges |
| Junction Capacitance | 175pF at 22V/1MHz - low enough for VBus line protection without signal integrity impact on DC power rails |
Pinout & Package
Package: DFN-6 (1.6mm × 1.6mm × 0.55mm), RoHS-compliant, Pb-free, UL 94V-0 molding compound, tape-and-reel packaging (3,000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three pins must be connected to maximize current sharing and minimize parasitic inductance |
| 4, 5, 6 | IN | Protected line input (e.g., USB PD VBus); parallel connection of all three pins ensures full 40A rating and uniform current distribution |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping across current range | 27.5–28V from 24A to 40A (8/20μs) - eliminates need for overrating to meet clamping targets at worst-case surge |
| Temperature-stable clamping | Clamping voltage variation <0.5V from −40°C to +125°C - enables reliable protection in uncontrolled thermal environments |
| FET-based shunt architecture | RDS(on) collapses under surge - achieves lower clamping than TVS diodes with fixed dynamic resistance |
| Low leakage & high isolation | <600nA at 22V - prevents standby power loss and avoids false triggering in battery-powered IoT devices |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20V–22V USB PD VBus lines against ESD, lightning-induced surges, and connector hot-plug transients. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed directly at Type-C connector, clamping transients before they reach PD controller or buck converter. Use Value: Maintains 27.5–28V clamping across temperature and current-prevents damage to 24V-rated PD controllers where standard TVS would exceed 35V at 125°C. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) exposed to field wiring surges in remote meters or robotics. IC Role / Device Role / Timing Role: Front-end transient diverter that absorbs >95% of surge energy, limiting voltage seen by load switch internal FET gate oxide. Use Value: Enables use of cost-optimized load switches without requiring derating or oversized SOA margins-extends system lifetime in harsh EMC environments. |
| IoT Device Power Rail Protection | Notebook/Tablet DC Power Input Stage |
|
Use Scenario: Securing 22V-rated power inputs of battery-backed smart sensors and edge gateways deployed in unshielded enclosures. IC Role / Device Role / Timing Role: Single-component solution replacing multi-stage TVS+MOV designs, reducing BOM count and PCB area by >60%. Use Value: 1.6mm × 1.6mm footprint saves board space versus SOD-123 or SMA packages while delivering higher surge robustness per mm². |
Use Scenario: Protecting main DC input (e.g., 20V adapter input) of ultrabooks and tablets against accidental AC mains coupling or ESD during charging port handling. IC Role / Device Role / Timing Role: Fast-acting shunt clamp that activates within nanoseconds of overvoltage detection, preventing latch-up in PMIC input stages. Use Value: 175pF capacitance avoids resonance issues with input bulk capacitors; low leakage preserves battery shelf life during long storage periods. |
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); 1.5× higher clamping voltage than JTX1N5822US at same current | Limited to lower-energy transients; unsuitable for 40A IEC 61000-4-5 compliance without parallel staging | Choose when cost is primary constraint and surge requirements are ≤15A; avoid where clamping margin below 24V IC thresholds is critical |
| TPD2E007DBVR | Low-capacitance (3.5pF) dual-channel ESD protector; rated only for 3A (8/20μs); no EOS surge capability | Designed exclusively for high-speed data lines (e.g., USB SS, DP), not power rails | Use only for signal-line ESD; never substitute for JTX1N5822US in VBus or load switch protection roles |
Compared with SMAJ22A and TPD2E007DBVR, JTX1N5822US uniquely delivers 40A surge handling with sub-28V clamping and temperature stability-making it the sole option among these three for robust, single-device 22V power rail protection meeting IEC 61000-4-5 Level 4.
Availability
JTX1N5822US is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch interfaces, and IoT device power inputs requiring stable component supply, consistent lead times, and full traceability.
Supply support for JTX1N5822US 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 sensing, power management, and transient protection.
JTX1N5822US belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-reliability 22V power rail protection where stable clamping under temperature and current stress is mandatory.
FAQ
What is the maximum continuous operating voltage for JTX1N5822US?
The JTX1N5822US has a reverse stand-off voltage (VRWM) of 22V, meaning it can safely operate on DC power rails up to 22V without significant leakage or degradation. This makes JTX1N5822US ideal for USB PD VBus lines and other 22V-rated industrial power inputs where sustained voltage exposure occurs.
Does JTX1N5822US require external bias or control signals to function?
No, JTX1N5822US is a fully autonomous transient suppressor with an integrated precision trigger circuit and shunt FET. It requires no external power, enable signals, or configuration-JTX1N5822US activates automatically when input voltage exceeds its breakdown threshold, making it drop-in compatible with existing TVS footprints.
How does JTX1N5822US achieve stable clamping voltage across temperature?
JTX1N5822US maintains 27.5–28V clamping from −40°C to +125°C because its FET-based architecture reduces RDS(on) under surge, counteracting thermal drift effects inherent in PN-junction TVS diodes. This behavior is confirmed in the datasheet's clamping vs. temperature curves-JTX1N5822US shows <0.5V variation across its full operating range.
Can JTX1N5822US be used on high-speed data lines like USB SuperSpeed?
No, JTX1N5822US is not suitable for high-speed data lines due to its 175pF junction capacitance, which would severely degrade signal integrity. It is designed exclusively for power rail and low-frequency I/O protection. For USB SS, DP, or DM lines, Semtech recommends low-capacitance devices like RClamp3371ZC-never substitute JTX1N5822US in those roles.
What is the recommended PCB layout for optimal surge performance of JTX1N5822US?
Place JTX1N5822US as close as possible to the protected connector, connect all three IN pins (4, 5, 6) via a single short trace, and tie all three GND pins (1, 2, 3) directly to a solid ground plane using multiple vias. This minimizes parasitic inductance-critical for achieving full 40A surge rating. The datasheet specifies this layout in Figure 7.
JTX1N5822US Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- SQ-MELF
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 40 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -65°C ~ 125°C
JTX1N5822US FAQ
1.How can I place an order for JTX1N5822US through Aetrix?
Please submit a Request for Quotation (RFQ) for JTX1N5822US 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 JTX1N5822US reliable?
The price and inventory of JTX1N5822US are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JTX1N5822US is usually 5 days.
3.What payment methods are accepted for JTX1N5822US?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JTX1N5822US transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JTX1N5822US?
JTX1N5822US orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JTX1N5822US 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 JTX1N5822US?
For technical support, including JTX1N5822US datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JTX1N5822US requirements.
6.How does Aetrix verify that JTX1N5822US is sourced from the original manufacturer or authorized distributors?
All JTX1N5822US 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 JTX1N5822US meets industry standards.
7.What is the process for return or replacement of JTX1N5822US?
All JTX1N5822US units undergo pre-shipment inspection (PSI). If there is an issue with JTX1N5822US, 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 JTX1N5822US part is unused and in its original packaging.
Return procedure for JTX1N5822US:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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