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Microchip Technology JANTX1N6155US/TR
- Part No.:
- JANTX1N6155US/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JANTX1N6155US/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,242
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Product details
Overview
JANTX1N6155US/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), 27.4 V working standoff voltage (VWM), and 49.9 V clamping voltage (VC) at 30.1 A peak pulse current - deployed in avionics power rail protection and radar front-end ESD hardening.
For engineers reviewing the JANTX1N6155US/TR datasheet, JANTX1N6155US/TR pinout, JANTX1N6155US/TR application, or JANTX1N6155US/TR equivalent, key selection criteria include MIL-PRF-19500/516 qualification level (JANTX), bidirectional clamping symmetry, glass-body thermal resistance (5.0 °C/W), and IEC61000-4-2/4-4/4-5 compliance for high-reliability transient suppression.
Technical Context
This device operates as a bidirectional avalanche diode with no polarity marking, leveraging Category 1 metallurgical bonds and triple-layer passivation to sustain surge immunity across -55 °C to +175 °C junction temperature range. Its hard-glass SQ-MELF construction ensures voidless hermetic sealing and radiation hardness per MicroNote 050.
Clamping behavior is defined by a 30.1 A peak pulse current (IPP) at 49.9 V (VC) under 10/1000 µs waveform, with 0.095 %/°C temperature coefficient of breakdown voltage (αVBR). Standby leakage remains ≤5 µA at 27.4 V (VWM), enabling low-power system monitoring without loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 27.4 V - maximum continuous dc/repetitive peak voltage before conduction begins |
| VC @ IPP | 49.9 V at 30.1 A - clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPP | 1500 W - peak pulse power handling capability under standard surge waveform |
| IPP | 30.1 A - maximum non-repetitive surge current the device safely clamps |
| RθJEC | 5.0 °C/W - thermal resistance from junction to end cap, critical for pulsed power derating |
| TJ/TSTG | -55 to +175 °C - operational and storage temperature range supporting aerospace deployment |
| αVBR | 0.095 %/°C - predictable VBR drift over temperature for stable threshold design |
Pinout & Package
SQ-MELF (C package) surface-mount glass body with square-end-cap terminals; hermetically sealed voidless hard glass 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 (bidirectional) | Surge current path | Both ends function identically as symmetrical avalanche junctions - no orientation required during placement |
| End Cap (both ends) | Thermal interface | Direct junction-to-end-cap thermal path enables 5.0 °C/W RθJEC for pulsed power dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal/power lines without polarity concerns |
| Category 1 metallurgical bonds | Ensures mechanical and thermal cycle reliability in MIL-STD-883-tested high-reliability assemblies |
| Voidless hermetic seal | Prevents moisture ingress and long-term parameter drift in humid or vacuum environments |
| Triple-layer passivation | Suppresses surface leakage and enhances stability under ionizing radiation exposure |
Applications
| Aerospace Power Distribution | Ground Vehicle Radar Front-End |
|---|---|
Use Scenario: Protection of 28 V DC bus in satellite power management units against load dump and lightning-induced transients. IC Role / Device Role / Timing Role: Bidirectional TVS device clamping surges above 27.4 V while maintaining low standby leakage (<5 µA). Use Value: Prevents latch-up or burnout in downstream DC-DC converters during MIL-STD-461 RS103 events. | Use Scenario: Shielding RF receiver inputs in military ground radar systems from ESD and EFT coupling. IC Role / Device Role / Timing Role: Fast-response transient suppressor absorbing >1500 W pulses without degradation across 10⁵+ cycles. Use Value: Maintains signal integrity below 50 V clamp level during IEC61000-4-2 ±15 kV contact discharge. |
| Avionics Sensor Interface | Tactical Radio Battery Input |
Use Scenario: Guarding analog sensor signal conditioning circuits in flight control computers exposed to induced transients. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across differential pairs to shunt common-mode surges symmetrically. Use Value: Delivers <1 ns response time and <5 µA leakage at 27.4 V, preserving sensor accuracy. | Use Scenario: Safeguarding battery input stage of handheld tactical radios subjected to automotive jump-start transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V nominal input, qualified to JANTX reliability level. Use Value: Survives repeated 1500 W surges per MIL-PRF-19500/516, ensuring field-deployed unit longevity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6155AUS | Commercial-grade version; same VWM, VC, IPP, but not MIL-qualified | Lacks JANTX-level screening, burn-in, and lot traceability; unsuitable for flight hardware | Select only for lab prototypes or non-mission-critical ground test equipment |
| JANTXV1N6155US | Higher reliability screening (JANTXV level), tighter parametric limits, extended temperature validation | Required for space-qualified subsystems where failure modes must be fully characterized | Choose when full MIL-PRF-19500/516 JANTXV compliance and radiation hardness documentation are mandated |
Compared with JANTX1N6155US/TR, the commercial 1N6155AUS offers identical electrical specs but no military screening, while JANTXV1N6155US adds enhanced process controls and environmental validation - making the JANTX variant the optimal balance of ruggedness, traceability, and cost for defense electronics production.
Availability
JANTX1N6155US/TR is available at Aetrix Electronics and suitable for aerospace power distribution, ground vehicle radar front-end protection, and avionics sensor interface applications requiring stable component supply, full MIL-PRF-19500/516 traceability, and long-term obsolescence management.
Supply support for JANTX1N6155US/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 MIL-spec components.
The JANTX1N6155US/TR belongs to Microsemi's legacy 1N61xxAUS TVS family, engineered specifically for military-grade transient suppression in harsh-environment electronics where failure is not an option.
FAQ
What is the clamping voltage of JANTX1N6155US/TR at its rated peak pulse current?
The JANTX1N6155US/TR has a maximum clamping voltage (VC) of 49.9 V at 30.1 A peak pulse current (IPP) under the standard 10/1000 µs waveform. This value is guaranteed per MIL-PRF-19500/516 testing and defines the upper voltage limit imposed on protected circuitry during surge events. The JANTX1N6155US/TR maintains this clamping performance across its full operating temperature range.
Is JANTX1N6155US/TR unidirectional or bidirectional, and how does that affect PCB layout?
JANTX1N6155US/TR is a bidirectional TVS diode with no polarity marking, meaning both terminals are functionally identical and interchangeable. This eliminates orientation constraints during automated placement and simplifies layout for AC-coupled or floating nodes. The JANTX1N6155US/TR's symmetrical avalanche structure ensures matched clamping in either direction, critical for protecting differential signaling or transformer-isolated interfaces.
What is the maximum steady-state power dissipation of JANTX1N6155US/TR at 25 °C ambient?
The JANTX1N6155US/TR has a maximum off-state power dissipation (PD) of 3.0 W at TA = 25 °C, derating linearly to zero at 150 °C case temperature. This rating assumes controlled thermal resistance from mounting point to ambient - typically achieved via direct solder attachment to copper pour. The JANTX1N6155US/TR's 5.0 °C/W junction-to-end-cap thermal resistance supports this dissipation when properly mounted.
Does JANTX1N6155US/TR meet IEC61000-4-5 for lightning surge immunity?
Yes, JANTX1N6155US/TR provides protection from secondary effects of lightning per select levels in IEC61000-4-5, validated through its 1500 W peak pulse power rating at 10/1000 µs and clamping performance at 30.1 A. Its voidless hermetic construction and Category 1 metallurgical bonds ensure consistent response across repeated surges. The JANTX1N6155US/TR is routinely deployed in Level 3 and Level 4 IEC61000-4-5-compliant subsystems within military platforms.
What packaging and reel specifications apply to JANTX1N6155US/TR?
JANTX1N6155US/TR is supplied in SQ-MELF (C) package on tape-and-reel per EIA-481-B standard. Each reel contains standard quantities per factory configuration, with square-end-cap terminals optimized for pick-and-place accuracy. The JANTX1N6155US/TR's 1100 mg weight and precise dimensional tolerances (e.g., BD: 0.183–0.202 inch) ensure reliable feeding and placement in high-volume SMT lines.
JANTX1N6155US/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):
- 27.4V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30.1A
- 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
JANTX1N6155US/TR FAQ
1.How can I place an order for JANTX1N6155US/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6155US/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 JANTX1N6155US/TR reliable?
The price and inventory of JANTX1N6155US/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6155US/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N6155US/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6155US/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N6155US/TR?
JANTX1N6155US/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6155US/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 JANTX1N6155US/TR?
For technical support, including JANTX1N6155US/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6155US/TR requirements.
6.How does Aetrix verify that JANTX1N6155US/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N6155US/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 JANTX1N6155US/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N6155US/TR?
All JANTX1N6155US/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6155US/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 JANTX1N6155US/TR part is unused and in its original packaging.
Return procedure for JANTX1N6155US/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6155US/TR Tags
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