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Semtech Corporation JANTXV1N6638
- Part No.:
- JANTXV1N6638
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
JANTXV1N6638.pdf
- Description:
- DIODE GEN PURP 125V 300MA AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:2,333
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Product details
Overview
JANTXV1N6638 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, 20mΩ dynamic resistance, and 175pF junction capacitance - deployed in USB PD, USB Type-C, and industrial load switch input protection.
For engineers reviewing the JANTXV1N6638 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, temperature-stable clamping behavior, and direct alternatives for 22V bus protection in high-reliability embedded and industrial systems.
Technical Context
The JANTXV1N6638 implements 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 across 24–40A peak pulse current due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C with stable 27.5–28V clamping at 40A (1.2/50μs voltage + 8/20μs current combination waveform, RS = 2Ω), and maintains <600nA reverse leakage at 22V VRWM - enabling robust protection for voltage-sensitive USB PD controllers and industrial load switches without thermal derating penalties.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD bus and industrial 24V rail operating limits without derating. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave) - stays below typical 30V damage threshold of USB PD controllers. |
| Peak Pulse Current | 40A (tp = 8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment. |
| ESD Withstand | ±30kV contact & air per IEC 61000-4-2 - exceeds automotive and industrial ESD test requirements. |
| Dynamic Resistance | 20mΩ - ensures minimal voltage rise under high di/dt transients, critical for fast-rising lightning surges. |
| Junction Capacitance | 175pF at 22V, 1MHz - compatible with low-speed power/data lines; not suitable for >100MHz signal paths. |
| Package | DFN 1.6 × 1.6 × 0.55 mm, 6-lead - enables compact placement near connectors with minimal PCB area. |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish. Pin 1 marked with laser dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for all surge current paths; all three pins must be connected to maximize current sharing and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS or power rail); parallel connection of all three pins required to achieve full 40A rating and optimal thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across 24–40A IPP range - eliminates need for oversized TVS to meet low-VC at high current. |
| Temperature-stable clamping | 27.5–28V clamping maintained from –40°C to +125°C - removes thermal derating uncertainty in industrial enclosures. |
| Low dynamic resistance | 20mΩ measured between 1A–40A (8/20μs) - minimizes IR drop during surge, preserving downstream voltage margin. |
| High-energy surge handling | 1120W peak pulse power (8/20μs) - supports repeated surge events without parameter drift or degradation. |
| Integrated trigger circuit | Precisely tuned to activate shunt FET at ~27.9V VBR - ensures reliable turn-on before protected IC reaches absolute maximum ratings. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting USB Type-C VBUS lines operating up to 20V nominal with PD negotiation, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector, shunting surge energy to ground before reaching PD controller or load switch. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents overvoltage damage to sensitive 30V-rated PD controllers without thermal derating. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and IoT gateways subjected to field surges. IC Role / Device Role / Timing Role: Primary front-end EOS protector for high-side FET inputs, limiting voltage stress during 1.2/50μs + 8/20μs combo-wave transients. Use Value: Keeps clamping voltage below internal FET breakdown threshold (typically 30–35V), extending switch lifetime and avoiding catastrophic failure in ungrounded installations. |
| IoT Device Power Rail Protection | Storage Device DC Input Protection |
|
Use Scenario: Securing 22V-rated DC input rails in battery-powered or PoE-powered IoT edge nodes deployed in electrically noisy environments. IC Role / Device Role / Timing Role: Solid-state transient suppressor replacing traditional TVS diodes to deliver consistent clamping under variable ambient temperatures. Use Value: Eliminates clamping voltage drift with temperature - ensures reliable protection at +85°C ambient in sealed enclosures without design margin loss. |
Use Scenario: Protecting SATA or NVMe storage module 22V auxiliary power inputs against ESD and system-level surges during hot-plug operations. IC Role / Device Role / Timing Role: Low-capacitance (175pF), high-current suppressor placed at board edge to intercept transients before reaching PMIC or LDO regulators. Use Value: Delivers 40A surge capability with <0.6μA leakage at 22V - preserves standby power budget while meeting IEC 61000-4-5 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | Same die, commercial-grade (-40°C to +85°C), identical electrical specs and DFN-6 package. | Not qualified to MIL-PRF-19500/565 JANTXV screening; lacks extended temperature and reliability testing. | Select JANTXV1N6638 for aerospace, defense, or high-reliability industrial programs requiring military-grade screening and traceability. |
| uClamp2411ZA | 24V working voltage, ±30kV ESD, but lower 20A IPP rating and higher 32V clamping at 20A. | Designed for CC/SBU lines in USB Type-C; not rated for continuous 22V bus operation or 40A surge. | Use uClamp2411ZA only for auxiliary signal-line protection; JANTXV1N6638 is required for main power rail protection where 40A/28V performance is mandatory. |
Compared with TDS2211P.C and uClamp2411ZA, JANTXV1N6638 provides military-grade reliability screening, full 40A surge capability with sub-28V clamping, and guaranteed operation to +125°C - making it the sole option for mission-critical 22V bus protection where thermal stability and long-term parametric consistency are non-negotiable.
Availability
JANTXV1N6638 is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and ruggedized IoT device power rails requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for JANTXV1N6638 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 protection, sensing, and signal integrity.
The JANTXV1N6638 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power rail protection with superior clamping stability and surge endurance.
FAQ
What is the exact clamping voltage specification for JANTXV1N6638 at 40A?
The JANTXV1N6638 clamps at 27.6–28.0V under IEC 61000-4-5 combination waveform conditions (1.2/50μs voltage + 8/20μs current, RS = 2Ω) at 40A peak pulse current. This value is guaranteed across –40°C to +125°C and reflects the device's constant-clamp architecture enabled by its surge-rated FET.
Does JANTXV1N6638 require external bias or control signals to operate?
No, JANTXV1N6638 is a fully passive, self-triggering device. It contains an integrated precision trigger circuit and drive circuit that automatically activates the shunt FET when transient voltage exceeds ~27.9V breakdown. No external power, enable pin, or configuration is needed - it functions immediately upon installation.
Can JANTXV1N6638 be used in place of a standard TVS diode for 22V rail protection?
Yes, JANTXV1N6638 replaces standard TVS diodes in 22V applications where stable clamping and temperature independence are critical. Unlike TVS diodes whose clamping rises linearly with current and temperature, JANTXV1N6638 maintains ≤28V clamping from 24A to 40A and from –40°C to +125°C - eliminating thermal derating calculations.
What is the recommended PCB layout for JANTXV1N6638 to achieve full 40A surge rating?
To achieve the full 40A rating, all three IN pins (4, 5, 6) must be connected via a single low-inductance trace to the protected line, and all three GND pins (1, 2, 3) must connect to a solid ground plane using multiple vias. Placement within 5mm of the connector is required to minimize coupled transients - per Semtech's layout guidelines in the JANTXV1N6638 datasheet.
Is JANTXV1N6638 compliant with RoHS and halogen-free standards?
Yes, JANTXV1N6638 uses Pb-free, halogen-free materials and complies with RoHS and WEEE directives. Its molding compound meets UL 94V-0 flammability rating, and the lead finish is fully lead-free - confirmed in Semtech's official datasheet revision 2.5.
JANTXV1N6638 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- Axial
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 125 V
- Current - Average Rectified (Io):
- 300mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 4.5 ns
- Current - Reverse Leakage @ Vr:
- 500 nA @ 125 V
- Capacitance @ Vr, F:
- -
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/578
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
- Operating Temperature - Junction:
- -65°C ~ 175°C
JANTXV1N6638 FAQ
1.How can I place an order for JANTXV1N6638 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N6638 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 JANTXV1N6638 reliable?
The price and inventory of JANTXV1N6638 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N6638 is usually 5 days.
3.What payment methods are accepted for JANTXV1N6638?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N6638 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N6638?
JANTXV1N6638 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N6638 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 JANTXV1N6638?
For technical support, including JANTXV1N6638 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N6638 requirements.
6.How does Aetrix verify that JANTXV1N6638 is sourced from the original manufacturer or authorized distributors?
All JANTXV1N6638 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 JANTXV1N6638 meets industry standards.
7.What is the process for return or replacement of JANTXV1N6638?
All JANTXV1N6638 units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N6638, 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 JANTXV1N6638 part is unused and in its original packaging.
Return procedure for JANTXV1N6638:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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