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Microchip Technology JANTX1N6161US/TR
- Part No.:
- JANTX1N6161US/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JANTX1N6161US/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,931
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Product details
Overview
JANTX1N6161US/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), 47.1 V working standoff voltage (VWM), and 85.3 V clamping voltage (VC) at 17.6 A peak pulse current - deployed in avionics power rail protection and radar front-end surge suppression.
For engineers reviewing the JANTX1N6161US/TR datasheet, JANTX1N6161US/TR pinout, JANTX1N6161US/TR application, or JANTX1N6161US/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 compatibility with high-reliability PCB assembly under 260 °C reflow.
Technical Context
This TVS operates bidirectionally without polarity marking and uses internal Category 1 metallurgical bonds within a hard-glass, voidless hermetic seal to ensure radiation hardness and ESD immunity per MIL-STD-750 Method 1020. Its breakdown voltage is 58.9 V at 20 mA with ±5% tolerance (A-suffix), and temperature coefficient is +0.100 %/°C.
The device delivers 1500 W peak pulse power for 10/1000 µs transients while maintaining ≤5 µA standby current at VWM, and supports IEC61000-4-2/4-4/4-5 compliance for ESD, EFT, and lightning-induced surge protection in mission-critical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 47.1 V - maximum continuous reverse/forward voltage before conduction begins; sets operating margin for 48 V DC systems. |
| V(BR) @ I(BR) | 58.9 V @ 20 mA - precise avalanche onset threshold enabling predictable clamping initiation. |
| VC @ IPP | 85.3 V @ 17.6 A - clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPP | 1500 W - peak transient energy absorption capacity; sustains single-event surges up to 1500 W without degradation. |
| TJ/TSTG | −55 to +175 °C - extended junction/storage range enables operation in aerospace and ground vehicle environments. |
| RθJEC | 5.0 °C/W - low thermal resistance from junction to end cap allows efficient heat transfer to PCB copper pads. |
Pinout & Package
SQ-MELF (C-package) surface-mount glass body with square-end-cap terminals; hermetically sealed voidless construction using tungsten slugs and tin/lead-plated copper terminations. No polarity marking due to bidirectional symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity; no orientation required during placement. |
| End Cap (both ends) | Thermal and electrical interface | Directly bonded to PCB copper for simultaneous current conduction and heat dissipation; requires full-surface pad contact. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal/power lines without polarity constraints. |
| Category 1 metallurgical bonds | Guarantees mechanical integrity and bond reliability under thermal cycling and mechanical shock per MIL-PRF-19500. |
| Voidless hermetic glass seal | Eliminates internal delamination risk and moisture ingress, ensuring long-term parametric stability in humid or vacuum environments. |
| MIL-PRF-19500/516 JANTX qualification | Validated screening includes burn-in, temperature cycling, and lot acceptance testing for defense/aerospace deployment. |
Applications
| Avionics Power Distribution | Radar RF Front-End Protection |
|---|---|
Use Scenario: Protecting 28 V and 48 V DC bus rails in airborne navigation computers against load dump and induced transients. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed directly across input terminals to shunt surge energy before it reaches DC/DC converters. Use Value: With 47.1 V VWM and 85.3 V VC, JANTX1N6161US/TR maintains system uptime by limiting rail overvoltage to <86 V during 1500 W surges. | Use Scenario: Shielding LNA inputs and mixer bias lines in X-band radar receivers from ESD and antenna-coupled lightning surges. IC Role / Device Role / Timing Role: Bidirectional shunt element mounted at RF connector entry point to clamp both positive and negative transients. Use Value: SQ-MELF geometry minimizes parasitic inductance (<0.5 nH), preserving RF bandwidth while delivering sub-100 V clamping at 17.6 A. |
| Ground Vehicle Control Units | Spacecraft Payload Interfaces |
Use Scenario: Safeguarding CAN and LIN bus nodes in engine control modules exposed to alternator ripple and ignition noise. IC Role / Device Role / Timing Role: Low-leakage (≤5 µA) bidirectional suppressor bridging data lines to chassis ground. Use Value: 0.100 %/°C αV(BR) ensures stable clamping threshold across −40 to +125 °C ambient, critical for automotive thermal profiles. | Use Scenario: Hardening command/data interfaces between satellite bus and deployable payloads against single-event transients. IC Role / Device Role / Timing Role: Radiation-hardened TVS integrated into space-qualified harness assemblies per MicroNote 050 guidelines. Use Value: Inherent TID tolerance and neutron fluence resilience enable >100 krad(Si) operation without parameter shift or failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6161AUS | Commercial-grade version; same VWM, V(BR), VC, but not MIL-PRF-19500 qualified. | Lacks JANTX screening; unsuitable for defense/aerospace programs requiring traceable reliability data. | Select only for non-military industrial prototypes where cost outweighs qualification requirements. |
| JANTXV1N6161US | Higher screening level (JANTXV); includes additional temperature cycling and life test validation beyond JANTX. | Required for flight-critical subsystems where extended lifetime and zero-defect history are mandated. | Choose when program spec explicitly calls for JANTXV-level assurance or when operating above 125 °C junction. |
Compared with JANTX1N6161US/TR, 1N6161AUS offers identical electrical specs at lower cost but no military qualification, while JANTXV1N6161US adds screening rigor for extreme environments - making JANTX the balanced choice for certified avionics and ruggedized ground systems.
Availability
JANTX1N6161US/TR is available at Aetrix Electronics and suitable for avionics power distribution, radar RF front-end protection, and spacecraft payload interfaces requiring stable component supply across extended procurement cycles and obsolescence-sensitive programs.
Supply support for JANTX1N6161US/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, high-voltage, and ultra-stable timing solutions.
The JANTX1N6161US/TR belongs to Microsemi's MIL-PRF-19500/516-qualified TVS family, engineered specifically for survivability in electromagnetic threat environments where failure is not an option - including missile guidance, satellite bus protection, and nuclear instrumentation.
FAQ
What is the clamping voltage of JANTX1N6161US/TR at its rated peak pulse current?
JANTX1N6161US/TR has a maximum clamping voltage (VC) of 85.3 V at 17.6 A peak pulse current (IPP) for a 10/1000 µs waveform. This value is measured under standardized surge conditions and defines the upper voltage limit imposed on protected circuits during transient events. The JANTX1N6161US/TR maintains this clamping performance across its qualified temperature range and after MIL-PRF-19500 screening.
Is JANTX1N6161US/TR RoHS compliant?
No, JANTX1N6161US/TR is not RoHS compliant. Per the datasheet, RoHS-compliant versions (e.g., matte-tin termination) are available only for commercial-grade parts (e.g., 1N6161AUS), not for JANTX-level devices. JANTX1N6161US/TR uses standard tin/lead plating per MIL-PRF-19500 requirements and is exempt from RoHS under military application allowances.
Does JANTX1N6161US/TR require orientation during PCB placement?
No, JANTX1N6161US/TR does not require orientation during placement. As a bidirectional TVS in SQ-MELF package, it has no polarity marking and functions identically regardless of terminal alignment. Both ends serve as symmetrical avalanche junctions, allowing automated pick-and-place without vision-based rotation checks - simplifying manufacturing for high-reliability boards.
What is the thermal resistance specification for JANTX1N6161US/TR?
JANTX1N6161US/TR has a junction-to-end-cap thermal resistance (RθJEC) of 5.0 °C/W. This value reflects direct conduction path efficiency from the silicon junction to the metalized end caps, which interface with PCB copper pads. Proper pad design per the datasheet's recommended layout ensures this thermal rating is achieved, supporting sustained operation up to 175 °C junction temperature.
How does JANTX1N6161US/TR differ from the non-A-suffix version like JANTX1N6161US?
JANTX1N6161US/TR (A-suffix) has tighter electrical tolerances: minimum breakdown voltage is 58.9 V, clamping voltage is 85.3 V, and peak pulse current is 17.6 A. The non-A version (e.g., JANTX1N6161US) has 5% higher VC, 5% lower minimum V(BR), and 5% lower IPP. The A-suffix variant is specified in the electrical characteristics table and is the controlled, qualified version shipped under TR (tape & reel) packaging.
JANTX1N6161US/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):
- 47.1V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85.3V
- Current - Peak Pulse (10/1000µs):
- 17.6A
- 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
JANTX1N6161US/TR FAQ
1.How can I place an order for JANTX1N6161US/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6161US/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 JANTX1N6161US/TR reliable?
The price and inventory of JANTX1N6161US/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6161US/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N6161US/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6161US/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N6161US/TR?
JANTX1N6161US/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6161US/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 JANTX1N6161US/TR?
For technical support, including JANTX1N6161US/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6161US/TR requirements.
6.How does Aetrix verify that JANTX1N6161US/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N6161US/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 JANTX1N6161US/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N6161US/TR?
All JANTX1N6161US/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6161US/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 JANTX1N6161US/TR part is unused and in its original packaging.
Return procedure for JANTX1N6161US/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6161US/TR Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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