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Semtech Corporation JANTX1N6466US
- Part No.:
- JANTX1N6466US
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SQ-MELF
- Datasheet:
-
JANTX1N6466US.pdf
- Description:
- T DAP UNI 500W 30.5V SM
- Quantity:
- Payment:
- Shipping:
Inventory:3,682
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Product details
Overview
JANTX1N6466US from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection on 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and stable 27.5–28V clamping across temperature and current range - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the JANTX1N6466US datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under 40A surge, DFN-6 package thermal and layout constraints, 22V working voltage compliance, and FET-based shunt architecture versus conventional TVS diodes.
Technical Context
The JANTX1N6466US implements a precision-triggered surge-rated FET as its primary protection element, activated by an internal reference circuit when transient voltage exceeds breakdown threshold. Unlike standard TVS diodes, it achieves near-constant clamping via dynamic RDS(on) reduction under increasing current.
Its functional architecture separates trigger and power-handling paths: a low-leakage (≤600nA at 22V), low-capacitance (175pF at 22V/1MHz) design enables use on high-speed bus inputs without signal integrity degradation, while maintaining robust ±4kV EFT immunity per IEC 61000-4-4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 22 V - defines maximum continuous DC or RMS operating voltage on protected line without leakage or conduction. |
| Clamping Voltage (VC) | 27.5–28 V at 40A (8/20μs + 1.2/50μs combo wave, RS=2Ω) - ensures downstream 24V-rated ICs (e.g., USB PD controllers) remain below damage threshold during surge. |
| Peak Pulse Current (IPP) | 40 A (8/20μs) - supports industrial-level lightning surge immunity per IEC 61000-4-5 with ±1kV unsymmetrical line test. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds Level 4 requirements for handheld and portable electronics interfaces. |
| Dynamic Resistance (RDYN) | 20 mΩ (8/20μs, 1–40A range) - enables flat clamping curve; critical for predictable protection across temperature and current extremes. |
| Junction Capacitance (CJ) | 175 pF at 22V/1MHz - compatible with medium-speed power/data lines (e.g., USB PD VBUS, load switch enable inputs), not superspeed lanes. |
Pinout & Package
Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), RoHS-compliant, Pb-free, UL 94V-0 molding compound, tape-and-reel packaging (3,000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to maximize current sharing and minimize parasitic inductance. |
| Pins 4, 5, 6 | IN | Protected line input (e.g., VBUS, load switch VIN); parallel connection required to achieve full 40A rating and optimal thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Enables <28V clamping across full 40A surge range and −40°C to +125°C ambient - eliminates voltage rise with current/temperature seen in TVS diodes. |
| Low dynamic resistance | 20 mΩ ensures minimal IR drop during surge, preserving clamping accuracy and reducing localized heating in high-repetition transients. |
| High EFT immunity | ±4 kV per IEC 61000-4-4 (5/50 ns, 5 kHz & 100 kHz bursts) - protects against switching noise in motor drives and industrial PLCs. |
| Compact DFN footprint | 1.6 mm × 1.6 mm area saves >60% board space vs. SO-8 or SOT-23 TVS solutions rated for comparable energy handling. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Front-End Protection |
|---|---|
Use Scenario: Protecting 20–22V VBUS lines in USB-C receptacles supporting up to 100W PD, exposed to ESD and system-level surges. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed immediately after connector, before PD controller and load switch. Use Value: Maintains ≤28V clamping at 40A and 125°C - prevents latch-up or gate oxide damage in 24V-tolerant PD controllers (e.g., TUSB564, STUSB4500) where legacy TVS would exceed 35V. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., ON Semiconductor NIS5132, TI TPS25982) in remote meters and robotics. IC Role / Device Role / Timing Role: First-line transient diverter upstream of overvoltage/overcurrent protection ICs, absorbing energy before it reaches sensitive control logic. Use Value: Limits stress on internal FET's drain-source breakdown rating by clamping surges before they propagate - extends reliability in ungrounded or floating supply environments. |
| IoT Edge Node Power Bus Protection | Storage Device 22V Auxiliary Rail Protection |
Use Scenario: Securing 22V auxiliary rails powering cellular modems, GNSS receivers, or sensor fusion modules in battery-backed field-deployed IoT nodes. IC Role / Device Role / Timing Role: Standalone transient suppressor on main power input, co-located with input capacitor and fuse. Use Value: Delivers ±30kV ESD robustness and 40A surge capacity in ultra-compact DFN-6 - critical for space-constrained edge enclosures with no chassis ground. |
Use Scenario: Protecting 22V backup or auxiliary power rails in NVMe SSDs, SAS expanders, and enterprise HDD backplanes subject to hot-swap and cable discharge events. IC Role / Device Role / Timing Role: Secondary protection device on non-data power lines (e.g., VCC_AUX), complementing low-capacitance TVS on high-speed lanes. Use Value: 175pF capacitance avoids resonance or signal distortion on 22V bias rails, while 22V VRWM ensures no leakage or derating during extended 24V tolerance testing. |
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; differs only in screening and qualification level. | Not qualified for military/aerospace use; lacks MIL-PRF-19500 JANTX screening, burn-in, and lot traceability. | Select JANTX1N6466US for defense, avionics, or high-reliability industrial programs requiring JANTX-level reliability assurance. |
| SMAJ22A | Standard unidirectional TVS diode; 22V VBR, 33.2V VC @ 12.3A (8/20μs); higher clamping, fixed RDYN, no temperature stability. | Limited to lower-energy surges; clamping rises to >40V at 125°C - unsuitable for 24V-system margin-critical designs. | Use SMAJ22A only in cost-sensitive, non-temperature-extreme applications where 33V+ clamping is acceptable. |
Compared with TDS2211P.C and SMAJ22A, JANTX1N6466US delivers military-grade reliability with identical high-performance clamping behavior, enabling drop-in replacement in ruggedized systems without redesign - whereas SMAJ22A requires significant derating and thermal margin analysis to meet same protection goals.
Availability
JANTX1N6466US is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, IoT edge node power buses, and storage device auxiliary rails requiring stable component supply across extended temperature and surge conditions.
Supply support for JANTX1N6466US 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, signal integrity, and power management.
JANTX1N6466US belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power rail protection where stable clamping, temperature resilience, and compact size are mandatory.
FAQ
What is the operating temperature range of JANTX1N6466US?
JANTX1N6466US is screened to operate from −55°C to +125°C junction temperature, with guaranteed performance across −40°C to +125°C ambient per MIL-PRF-19500 JANTX requirements. Its clamping voltage remains stable within 27.5–28V from −40°C to +125°C, unlike conventional TVS devices whose clamping degrades with rising temperature. This makes JANTX1N6466US especially suitable for under-hood automotive modules and industrial control cabinets where thermal margins are tight.
How does JANTX1N6466US differ from standard TVS diodes in surge response?
JANTX1N6466US uses a precision-triggered FET shunt instead of a pn-junction avalanche structure. During a surge, its dynamic resistance drops to 20 mΩ, yielding flat clamping at ~28V across the full 40A (8/20μs) range and temperature span. Standard TVS diodes exhibit linear VC = VBR + IPP × RDYN, causing clamping to rise above 35V at high current or temperature - a key limitation JANTX1N6466US eliminates for 24V-system protection.
Can JANTX1N6466US be used on high-speed data lines like USB SuperSpeed?
No - JANTX1N6466US has 175 pF junction capacitance at 22V/1MHz, which is too high for USB 3.x/PCIe/DisplayPort signal integrity. It is intended exclusively for power or medium-speed control lines (e.g., VBUS, EN, OVP inputs). For SuperSpeed lanes, Semtech recommends sub-0.25pF devices like RClamp3371ZC, which must be used alongside JANTX1N6466US in complete USB-C protection schemes.
What PCB layout practices are required to achieve full 40A rating for JANTX1N6466US?
To achieve the rated 40A peak pulse current, all three GND pins (1, 2, 3) and all three IN pins (4, 5, 6) must be connected in parallel using short, wide copper traces. Ground connections should route to a solid internal plane via ≥3 vias per GND pin to minimize inductance. The device must be placed within 5 mm of the protected connector, and no other components should share the same trace segment between connector and JANTX1N6466US - verified in Semtech's layout guidelines for DFN-6 TDS devices.
Is JANTX1N6466US compliant with RoHS and halogen-free standards?
Yes - JANTX1N6466US meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. Its molding compound carries UL 94V-0 flammability rating, and lead finish is 100% matte tin. These compliance attributes are maintained across JANTX screening, including extended temperature cycling and humidity testing per MIL-STD-750.
JANTX1N6466US Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- SQ-MELF
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30.5V
- Voltage - Breakdown (Min):
- 33V
- Voltage - Clamping (Max) @ Ipp:
- 47.5V
- Current - Peak Pulse (10/1000µs):
- 11A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/516
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
JANTX1N6466US FAQ
1.How can I place an order for JANTX1N6466US through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6466US 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 JANTX1N6466US reliable?
The price and inventory of JANTX1N6466US are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6466US is usually 5 days.
3.What payment methods are accepted for JANTX1N6466US?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6466US transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N6466US?
JANTX1N6466US orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6466US 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 JANTX1N6466US?
For technical support, including JANTX1N6466US datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6466US requirements.
6.How does Aetrix verify that JANTX1N6466US is sourced from the original manufacturer or authorized distributors?
All JANTX1N6466US 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 JANTX1N6466US meets industry standards.
7.What is the process for return or replacement of JANTX1N6466US?
All JANTX1N6466US units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6466US, 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 JANTX1N6466US part is unused and in its original packaging.
Return procedure for JANTX1N6466US:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6466US Tags
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Diodes Incorporated
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