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Microchip Technology JANTX1N6142US/TR
- Part No.:
- JANTX1N6142US/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JANTX1N6142US/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,777
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Product details
Overview
JANTX1N6142US/TR from Microsemi is a military-qualified, voidless hermetically sealed bidirectional Transient Voltage Suppressor (TVS) in SQ-MELF package, rated for 1500 W peak pulse power (10/1000 µs), 7.6 V working standoff voltage (VWM), and 14.5 V clamping voltage (VC) at 103.4 A peak pulse current - deployed in avionics power rail protection and radar front-end surge suppression.
For engineers reviewing the JANTX1N6142US/TR datasheet, JANTX1N6142US/TR pinout, JANTX1N6142US/TR application, or JANTX1N6142US/TR equivalent, key selection criteria include MIL-PRF-19500/516 qualification level (JANTX), bidirectional clamping behavior, glass-body thermal resistance (5.0 °C/W), and IEC61000-4-2/4-4/4-5 compliance for ESD, EFT, and lightning-induced transients.
Technical Context
This TVS operates bidirectionally with no polarity marking and relies on hard-glass construction with internal Category 1 metallurgical bonds to ensure radiation hardness and long-term reliability under thermal cycling. Its breakdown voltage is 9.50 V ±5% at 125 mA test current, with temperature coefficient αV(BR) of 0.07 %/°C.
The device delivers 1500 W peak pulse power into a 10/1000 µs waveform while maintaining clamping voltage ≤14.5 V at 103.4 A, enabling robust secondary lightning protection per IEC61000-4-5 select levels. Standby leakage remains ≤100 µA at 7.6 V VWM across –55 °C to +175 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.6 V - maximum continuous reverse/forward voltage before conduction begins; defines safe operating margin for 12 V rail protection. |
| V(BR) | 9.50 V @ 125 mA - precise breakdown threshold ensuring predictable turn-on during overvoltage events. |
| VC @ IPP | 14.5 V @ 103.4 A - clamping voltage limits downstream IC stress during 1500 W transient surges. |
| PPP | 1500 W (10/1000 µs) - enables single-device protection against high-energy lightning-induced surges. |
| TJ Range | –55 °C to +175 °C - supports operation in extended-temperature military platforms without derating loss. |
| RθJEC | 5.0 °C/W - low thermal resistance from junction to end cap allows efficient heat dissipation into PCB copper or heatsink. |
Pinout & Package
SQ-MELF (C-package) surface-mount glass body with square-end-cap terminals; hermetically sealed voidless construction; tin/lead-plated copper terminations; no polarity marking due to bidirectional symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | Either end serves as anode or cathode depending on transient polarity; no orientation required during placement. |
| End Cap (both ends) | Thermal and electrical interface | Direct thermal path to PCB copper; dual-function terminal for current conduction and heat sinking. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection on AC-coupled or floating signal/power lines without polarity concerns. |
| Category 1 metallurgical bonds | Guarantees bond integrity under mechanical shock, vibration, and thermal cycling per MIL-PRF-19500/516. |
| Voidless hermetic seal | Prevents moisture ingress and internal corrosion over 20+ year field life in harsh environmental enclosures. |
| MIL-PRF-19500/516 JANTX qualification | Validates screening, testing, and traceability for use in DoD-critical systems requiring full lot traceability. |
Applications
| Avionics Power Distribution | Radar RF Front-End Protection |
|---|---|
Use Scenario: Protecting 28 V DC bus inputs in airborne mission computers from load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary bidirectional clamping element placed directly at connector entry point before DC-DC converters. Use Value: Limits transient voltage to ≤14.5 V during 1500 W surges, preventing latch-up or gate oxide damage in downstream PMICs. | Use Scenario: Shielding LNA and mixer inputs in X-band radar receivers from ESD and antenna-coupled lightning energy. IC Role / Device Role / Timing Role: First-line transient suppressor mounted adjacent to SMA connector feedthroughs on RF PCBs. Use Value: Clamps fast-rising ESD pulses (IEC61000-4-2 Level 4) within nanoseconds while preserving RF insertion loss below 0.2 dB up to 12 GHz. |
| Tactical Vehicle Communication Systems | Spacecraft Power Interface Modules |
Use Scenario: Safeguarding CAN and RS-485 transceivers in armored vehicle data networks exposed to EMP and ignition noise. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pairs and power rails at module boundaries. Use Value: Withstands 10000+ surge cycles per MIL-STD-1275B without parameter shift, ensuring network uptime in combat conditions. | Use Scenario: Protecting solar array regulator inputs in LEO satellite power management units subject to single-event burnout. IC Role / Device Role / Timing Role: Radiation-hardened TVS integrated into redundant power input filters with TID > 100 krad(Si). Use Value: Inherent radiation tolerance (per MicroNote 050) eliminates need for shielding mass, reducing SWaP-C in constrained orbital platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6142US/TR | Commercial-grade version; same VWM (7.6 V), VC (14.5 V), and PPP (1500 W); lacks MIL-PRF-19500/516 screening and JANTX-level traceability. | Approved for non-military industrial control systems; not authorized for DoD procurement or flight hardware. | Select when cost sensitivity outweighs qualification requirements and environmental stress profiles remain within commercial specs. |
| JANTXV1N6142US/TR | Higher screening level: includes burn-in, 100% parametric testing, and extended temperature cycling per MIL-PRF-19500/516 JANTXV. | Required for space-qualified subsystems and nuclear command/control where zero latent defects are mandated. | Choose when system-level FMEA demands zero-failure probability under worst-case thermal and radiation stress. |
Compared with JANTX1N6142US/TR, the commercial 1N6142US/TR reduces cost but forfeits military traceability and screening rigor, while JANTXV1N6142US/TR adds burn-in and extended testing for ultra-high-reliability deployments - all share identical electrical performance and SQ-MELF packaging.
Availability
JANTX1N6142US/TR is available at Aetrix Electronics and suitable for avionics power distribution, radar RF front-end protection, and tactical vehicle communication systems requiring stable component supply across extended product lifecycles.
Supply support for JANTX1N6142US/TR 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 Corporation (now part of Microchip Technology) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets, with emphasis on radiation-hardened and military-qualified components.
The JANTX1N6142US/TR belongs to Microsemi's 1N6138AUS–1N6173AUS TVS family, engineered specifically for MIL-PRF-19500/516-compliant surge protection in mission-critical systems where failure is not an option.
FAQ
What is the clamping voltage of JANTX1N6142US/TR at its rated peak pulse current?
JANTX1N6142US/TR has a maximum clamping voltage (VC) of 14.5 V at 103.4 A peak pulse current (IPP), measured under the standard 10/1000 µs waveform. This value ensures downstream circuitry remains within safe voltage limits during high-energy transients. The JANTX1N6142US/TR maintains this clamping performance across its full operating temperature range of –55 °C to +175 °C.
Is JANTX1N6142US/TR RoHS compliant?
No, JANTX1N6142US/TR is not RoHS compliant. Per the datasheet, RoHS-compliant matte-tin terminations are available only on commercial-grade versions (e.g., 1N6142US/TR), not on JAN, JANTX, JANTXV, or JANS qualified parts. The JANTX1N6142US/TR uses traditional tin/lead plating to meet MIL-PRF-19500/516 solderability and reliability requirements.
What does the "JANTX" prefix indicate for JANTX1N6142US/TR?
"JANTX" denotes a specific military reliability level per MIL-PRF-19500/516, including rigorous screening such as temperature cycling, steady-state life testing, and lot acceptance testing. JANTX1N6142US/TR meets these requirements for use in high-reliability defense and aerospace applications, distinguishing it from commercial or lower-screened variants like JAN or JANTXV.
Can JANTX1N6142US/TR be used in bidirectional AC signal lines?
Yes, JANTX1N6142US/TR is inherently bidirectional due to its symmetrical silicon avalanche structure and unmarked terminals. It provides identical clamping performance for positive and negative transients, making it suitable for protecting AC-coupled interfaces such as RS-422, RS-485, or transformer-isolated Ethernet PHYs without polarity concerns during layout or assembly.
What is the thermal resistance from junction to end cap for JANTX1N6142US/TR?
JANTX1N6142US/TR has a thermal resistance (RθJEC) of 5.0 °C/W from junction to end cap, enabling efficient heat transfer to PCB copper pads or external heatsinks. This low value supports sustained operation at elevated ambient temperatures and contributes to the device's ability to handle repeated 1500 W transients without thermal runaway - a critical factor in JANTX1N6142US/TR's suitability for high-duty-cycle military platforms.
JANTX1N6142US/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- SQ-MELF, C
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.6V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/516
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- C, SQ-MELF
JANTX1N6142US/TR FAQ
1.How can I place an order for JANTX1N6142US/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6142US/TR 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 JANTX1N6142US/TR reliable?
The price and inventory of JANTX1N6142US/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6142US/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N6142US/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6142US/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N6142US/TR?
JANTX1N6142US/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6142US/TR 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 JANTX1N6142US/TR?
For technical support, including JANTX1N6142US/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6142US/TR requirements.
6.How does Aetrix verify that JANTX1N6142US/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N6142US/TR 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 JANTX1N6142US/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N6142US/TR?
All JANTX1N6142US/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6142US/TR, 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 JANTX1N6142US/TR part is unused and in its original packaging.
Return procedure for JANTX1N6142US/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6142US/TR Tags
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Diodes Incorporated
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