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Semtech Corporation JANTX1N6147AUS
- Part No.:
- JANTX1N6147AUS
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SQ-MELF
- Datasheet:
-
JANTX1N6147AUS.pdf
- Description:
- T DAP BI 1500W
- Quantity:
- Payment:
- Shipping:
Inventory:5,040
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Product details
Overview
JANTX1N6147AUS from Microsemi (now Microchip) is a military-grade transient voltage suppression diode designed for high-reliability EOS/ESD protection of 22V DC power and signal lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 28V under 40A 8/20μs surge, maintains stable clamping across –55°C to +150°C, and uses solid-state FET-based architecture instead of conventional PN-junction TVS technology - deployed in USB PD input protection and industrial load switch front-end circuits.
For engineers reviewing the JANTX1N6147AUS datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, DFN-6 package layout guidance, clamping stability data across temperature and current, functional comparison vs. standard TVS diodes, and validated alternatives for 22V bus protection in aerospace, defense, and ruggedized industrial systems.
Technical Context
JANTX1N6147AUS implements a transient diverting suppressor (TDS) architecture with a precision-triggered shunt FET as the primary protection element - not a passive avalanche diode. Its trigger circuit activates the FET when voltage exceeds ~25V breakdown, enabling sub-20mΩ dynamic resistance during conduction.
This design yields near-constant clamping voltage (27.5–28V) from 24A to 40A peak pulse current and across –55°C to +150°C junction temperature - unlike conventional TVS diodes whose clamping rises linearly with IPP and temperature due to fixed RDYN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 22 V - maximum continuous DC operating voltage before triggering; matches USB PD 20V nominal + margin. |
| Clamping Voltage (VC) | 28 V @ 40A, 8/20μs - limits transient overvoltage to safe level for downstream 30V-rated ICs like load switches. |
| Peak Pulse Current (IPP) | 40 A, 8/20μs - withstands IEC 61000-4-5 Level 4 surges (±1kV, RS=42Ω) on 22V buses. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds industrial and automotive ESD requirements without derating. |
| Dynamic Resistance (RDYN) | 20 mΩ - enables flat clamping curve; reduces voltage overshoot during fast-rising transients. |
| Junction Capacitance (CJ) | 175 pF @ 22V, 1MHz - low enough for <100 Mbps data lines but not USB SS; used on VBus, CC, or power rails. |
| Operating Temperature | –55°C to +150°C - qualified for MIL-PRF-19500 JANTX screening; supports extended-range industrial and avionics use. |
Pinout & Package
Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), RoHS-compliant, Pb-free, UL 94V-0 molding compound. Thermal pad not required - energy dissipated in silicon FET channel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path; all three pins must be connected to maximize surge current handling and minimize inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBus, load switch VIN); parallel connection ensures uniform current sharing and thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based clamping | Replaces avalanche diode with low-Rds(on) shunt FET - eliminates voltage rise with increasing IPP and temperature. |
| Constant clamping profile | 27.5–28V across full 24–40A range and –55°C to +150°C - enables deterministic overvoltage margining in safety-critical designs. |
| High-energy surge rating | 1120 W peak pulse power (8/20μs) - supports repeated lightning-induced surges per IEC 61000-4-5 without degradation. |
| Low dynamic resistance | 20 mΩ measured between 1A–40A - minimizes IR drop during surge, preserving clamping accuracy under high di/dt. |
| MIL-qualified reliability | JANTX screening per MIL-PRF-19500 - includes burn-in, temperature cycling, and hermeticity testing for defense/aerospace deployment. |
Applications
| USB Power Delivery Input Protection | Industrial Load Switch Front-End |
|---|---|
Use Scenario: Protecting USB-C VBus lines operating up to 20V nominal with 22V max tolerance against ESD, lightning, and hot-swap transients. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at connector, clamping surges before reaching PD controller or e-fuse. Use Value: Maintains 28V clamping at 125°C - avoids over-clamp failure common with TVS diodes that exceed 38V at same conditions. |
Use Scenario: Safeguarding input of high-side load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Transient diverting suppressor placed upstream of load switch VIN pin to prevent gate oxide damage and internal FET avalanche. Use Value: Limits voltage seen by load switch to ≤28V during 40A surges - within absolute max rating of 30V-input switches. |
| Avionics Power Bus Protection | Ruggedized IoT Gateway Interface |
Use Scenario: Securing 22V aircraft auxiliary power feeds against induced lightning transients and static discharge in flight control subsystems. IC Role / Device Role / Timing Role: MIL-qualified transient suppressor mounted at chassis entry point, coordinated with upstream filters and grounding. Use Value: JANTX screening ensures operation at –55°C to +150°C and survivability after 1000+ surge events - critical for unattended avionics. |
Use Scenario: Hardening Ethernet PoE++ or cellular modem power inputs in outdoor gateways exposed to ESD and AC-line coupled surges. IC Role / Device Role / Timing Role: First-line protection for 22V auxiliary rails feeding PMICs, microcontrollers, and RF modules. Use Value: 175 pF capacitance avoids signal integrity issues on 10/100BASE-TX lines while providing robust ±30kV ESD immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Commercial-grade Semtech TDS; identical electrical specs (22V VRWM, 28V VC, 40A IPP), same DFN-6 package, but not JANTX-screened. | Lacks MIL-PRF-19500 qualification; suitable for commercial/industrial USB PD and IoT where extended temp and radiation tolerance not required. | Select when cost, lead time, or commercial qualification suffice - same PCB layout and performance at lower procurement overhead. |
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 11.8A (not constant), higher RDYN (~0.5Ω), degrades >85°C. | Lower surge rating (11.8A vs 40A), rising clamping with temperature - requires oversizing for same protection level. | Choose only if legacy design reuse or extreme cost sensitivity outweighs clamping stability and surge margin requirements. |
Compared with JANTX1N6147AUS, TDS2211P offers identical protection performance in commercial environments without JANTX screening, while SMAJ22A demands significant derating to achieve comparable clamping behavior - making JANTX1N6147AUS the only solution meeting both MIL-qualified reliability and flat-clamp performance at 40A/125°C.
Availability
JANTX1N6147AUS is available at Aetrix Electronics and suitable for USB Power Delivery interfaces, industrial load switch inputs, avionics power buses, and ruggedized IoT gateways requiring stable component supply under extended temperature and high-reliability screening.
Supply support for JANTX1N6147AUS 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
Microsemi (acquired by Microchip Technology in 2018) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs for aerospace, defense, and industrial markets.
JANTX1N6147AUS belongs to Microsemi's Transient Diverting Suppressor (TDS) family - engineered to replace conventional TVS diodes in mission-critical 22V bus protection where clamping stability, surge endurance, and extended-temperature operation are mandatory.
FAQ
What is the clamping voltage of JANTX1N6147AUS at 40A surge current?
JANTX1N6147AUS clamps at 27.6–28 V under 40A, 8/20μs surge current (per IEC 61000-4-5), with minimal variation across temperature. This flat clamping behavior results from its FET-based architecture - unlike standard TVS diodes whose clamping rises significantly with current and temperature. The value is guaranteed by design and verified across production lots.
Is JANTX1N6147AUS pin-compatible with standard TVS diodes like SMAJ22A?
No, JANTX1N6147AUS uses a 6-pin DFN package with three GND pins (1–3) and three IN pins (4–6), whereas SMAJ22A is a 2-pin DO-214AC device. Direct replacement requires PCB redesign. JANTX1N6147AUS demands symmetrical routing of all six pins to maintain surge current sharing and low-inductance grounding - a key requirement absent in traditional TVS layouts.
Does JANTX1N6147AUS require a thermal pad on the PCB?
No, JANTX1N6147AUS does not require a thermal pad. Its FET-based architecture dissipates surge energy in the channel rather than the junction, eliminating the need for enhanced thermal conduction. The datasheet explicitly states "no thermal pad is needed," and the DFN package relies on low-inductance GND connections (pins 1–3) and short, wide traces to the connector for optimal performance.
Can JANTX1N6147AUS protect USB SuperSpeed (SS) differential pairs?
No, JANTX1N6147AUS is not suitable for USB SuperSpeed lanes. With 175 pF junction capacitance, it would severely degrade signal integrity on 5–10 Gbps differential lines. It is intended for VBus, CC, SBU, or power rail protection only. For SS lines, low-capacitance devices like RClamp3371ZC (<0.25 pF) must be used alongside JANTX1N6147AUS in a tiered protection scheme.
What is the meaning of "JANTX" in JANTX1N6147AUS?
"JANTX" denotes compliance with MIL-PRF-19500, the U.S. military specification for semiconductor devices. JANTX1N6147AUS undergoes rigorous screening including extended temperature cycling, burn-in, and hermeticity testing - ensuring reliability in aerospace, defense, and high-availability industrial systems where failure is not an option. This qualification is not present in commercial equivalents like TDS2211P.
JANTX1N6147AUS 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 12.2V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.3V
- Current - Peak Pulse (10/1000µs):
- 67.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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:
- -
JANTX1N6147AUS FAQ
1.How can I place an order for JANTX1N6147AUS through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6147AUS 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 JANTX1N6147AUS reliable?
The price and inventory of JANTX1N6147AUS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6147AUS is usually 5 days.
3.What payment methods are accepted for JANTX1N6147AUS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6147AUS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N6147AUS?
JANTX1N6147AUS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6147AUS 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 JANTX1N6147AUS?
For technical support, including JANTX1N6147AUS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6147AUS requirements.
6.How does Aetrix verify that JANTX1N6147AUS is sourced from the original manufacturer or authorized distributors?
All JANTX1N6147AUS 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 JANTX1N6147AUS meets industry standards.
7.What is the process for return or replacement of JANTX1N6147AUS?
All JANTX1N6147AUS units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6147AUS, 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 JANTX1N6147AUS part is unused and in its original packaging.
Return procedure for JANTX1N6147AUS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6147AUS Tags
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