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Microchip Technology JANTX1N6171US/TR
- Part No.:
- JANTX1N6171US/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JANTX1N6171US/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,903
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Product details
Overview
JANTX1N6171US/TR from Microsemi is a voidless hermetically sealed surface-mount bidirectional Transient Voltage Suppressor (TVS) qualified to MIL-PRF-19500/516 at JANTX reliability level. It provides 121.6 V working peak standoff voltage (VWM), 152.0 V minimum breakdown voltage (V(BR)) at 8 mA, and clamps transients to 218.4 V at 6.9 A (10/1000 µs pulse), delivering 1500 W peak pulse power for lightning surge and ESD protection in avionics power interfaces.
For engineers reviewing the JANTX1N6171US/TR datasheet, JANTX1N6171US/TR pinout, JANTX1N6171US/TR application, or JANTX1N6171US/TR equivalent, key selection criteria include its military-grade hermetic glass package, bidirectional clamping behavior, IEC61000-4-2/4-4/4-5 compliance, and thermal resistance of 5.0 °C/W junction-to-end cap - critical for high-reliability aerospace and defense power rail protection.
Technical Context
This TVS operates bidirectionally with no polarity marking and uses internal Category 1 metallurgical bonds within a hard-glass, voidless hermetic enclosure. Its clamping action begins at V(BR) ≥152.0 V (I(BR) = 8 mA) and sustains 1500 W peak pulse power under 10/1000 µs waveform conditions while maintaining VWM = 121.6 V and ID ≤5 µA.
Thermal performance is defined by RθJEC = 5.0 °C/W and operational junction temperature range of –55 °C to +175 °C. It meets MIL-STD-750 Method 1020 for ESD insensitivity and exhibits inherent radiation hardness per MicroNote 050, supporting deployment in space-qualified and nuclear-hardened systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 121.6 V - maximum continuous reverse standoff voltage before conduction begins; defines safe operating margin for 100 V–120 V DC power rails. |
| V(BR) min | 152.0 V @ 8 mA - guaranteed breakdown threshold; ensures predictable turn-on during overvoltage events above nominal system voltage. |
| VC @ IPP | 218.4 V @ 6.9 A - clamping voltage under 10/1000 µs surge; limits downstream IC stress to sub-220 V during lightning-induced transients. |
| PPP | 1500 W - peak pulse power rating; supports robust protection against IEC61000-4-5 Level 4 (4 kV line-to-ground) surges. |
| ID @ VWM | ≤5 µA - ultra-low leakage current at rated standoff; prevents unnecessary power drain in battery-backed or low-quiescent systems. |
| TJ Range | –55 °C to +175 °C - extended junction temperature capability; enables operation in engine bay, satellite payload, and missile guidance electronics. |
| RθJEC | 5.0 °C/W - low thermal resistance to end cap; allows efficient heat transfer to PCB copper pour or heatsink without derating at 150 °C. |
Pinout & Package
Package: Hermetically sealed voidless hard-glass "C" (SQ-MELF) surface-mount package with tungsten slugs and tin/lead-plated copper terminals. Dimensions: BD = 0.183–0.202 in (4.65–5.13 mm), BL = 0.205–0.245 in (5.21–6.22 mm), ECT = 0.019–0.028 in (0.48–0.71 mm). Weight ≈ 1100 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Reversible transient conduction path | No polarity marking required; symmetric clamping in either direction protects AC-coupled or floating bus lines without orientation constraints. |
| End Cap (both ends) | Thermal and mechanical interface | Direct thermal path to PCB copper; dual-end-cap construction enables uniform solder joint formation and mechanical stability under thermal cycling. |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Eliminates moisture ingress and internal delamination risk over 20+ year field life in humid or vacuum environments. |
| Category 1 metallurgical bonds | Ensures bond integrity under shock, vibration, and thermal cycling - validated per MIL-PRF-19500/516 screening requirements. |
| Triple-layer passivation | Prevents surface leakage and corrosion on glass-metal interface, sustaining <5 µA leakage after 1000-hr 85/85 environmental stress. |
| MIL-PRF-19500/516 qualification | Meets JANTX-level screening including burn-in, temperature cycling, and long-term life test - required for DoD procurement. |
| IEC61000-4-2/4-4/4-5 compliance | Validated clamping response to ±8 kV contact / ±15 kV air ESD, 40 A fast transient bursts, and 4 kV line-to-ground surges. |
Applications
| Aerospace Power Distribution | Missile Guidance Electronics |
|---|---|
Use Scenario: Protection of 115 VAC-derived 28 VDC bus in flight control actuator power supplies against induced lightning transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input filter capacitor to clamp common-mode surges before DC-DC converter stage. Use Value: Withstands 1500 W 10/1000 µs pulses and maintains VWM = 121.6 V, ensuring compatibility with 100–120 VAC rectified rails while limiting downstream voltage to ≤218.4 V. |
Use Scenario: Input protection for radiation-tolerant FPGA-based navigation processors exposed to EMP-like transients during launch. IC Role / Device Role / Timing Role: Primary front-end surge suppressor on 5 V and 3.3 V supply inputs, mounted directly at connector entry point. Use Value: Inherent radiation hardness (MicroNote 050) and –55 °C to +175 °C operation enable uninterrupted function in extreme thermal/radiation environments. |
| Nuclear Instrumentation Systems | Naval Radar Signal Processing |
Use Scenario: DC power rail protection in neutron detector signal conditioning modules located inside reactor containment. IC Role / Device Role / Timing Role: Standoff-clamp TVS on isolated 24 V sensor bias supply, operating continuously at elevated ambient temperatures. Use Value: Low 5 µA standby current prevents loading of high-impedance bias networks; RθJEC = 5.0 °C/W enables stable operation up to 150 °C end-cap temperature. |
Use Scenario: Surge suppression on RF receiver front-end power feeds subjected to salt fog, thermal shock, and conducted EFT noise. IC Role / Device Role / Timing Role: Bidirectional clamping device across +15 V analog supply feeding low-noise amplifiers and ADC drivers. Use Value: Voidless hermetic seal prevents corrosion failure in marine environments; square-end-cap terminals ensure repeatable SMT placement yield >99.99%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTX1N6170US/TR | VWM = 114.0 V, V(BR) min = 142.5 V, VC = 206.3 V @ 7.3 A - lower clamping voltage but reduced standoff margin vs. 121.6 V rail. | Better suited for 100 V nominal systems where tighter clamping is prioritized over margin; same package and qualification level. | Select when system nominal voltage is ≤110 V and clamping headroom below 210 V is mandatory. |
| JANTXV1N6171US/TR | Identical electrical specs but qualified to JANTXV level - includes additional screening (e.g., 100% lot testing, enhanced burn-in) per MIL-PRF-19500/516. | Required for programs specifying JANTXV reliability (e.g., NASA GSFC-STD-7000A, DoD Class H/V); higher cost and longer lead time. | Choose only when program documentation explicitly mandates JANTXV screening - not a drop-in replacement without approval. |
Compared with JANTX1N6171US/TR, JANTX1N6170US/TR offers lower clamping at the expense of reduced standoff margin, while JANTXV1N6171US/TR delivers identical protection with stricter process controls - making the original JANTX grade optimal for cost-sensitive JANTX-compliant aerospace designs requiring 121.6 V VWM headroom.
Availability
JANTX1N6171US/TR is available at Aetrix Electronics and suitable for aerospace power distribution, missile guidance electronics, nuclear instrumentation systems, and naval radar signal processing requiring stable component supply across extended product lifecycles and rigorous qualification traceability.
Supply support for JANTX1N6171US/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) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The 1N6138AUS–1N6173AUS series was designed specifically for military-grade transient suppression in mission-critical platforms where hermeticity, radiation tolerance, and MIL-PRF-19500/516 compliance are non-negotiable.
FAQ
What is the working peak standoff voltage (VWM) of JANTX1N6171US/TR?
The JANTX1N6171US/TR has a rated working peak standoff voltage (VWM) of 121.6 V. This value represents the maximum continuous DC or repetitive peak voltage that can be applied across the device without triggering conduction. It is derived from the 152.0 V minimum breakdown voltage (V(BR)) with a defined safety margin, ensuring reliable operation on 100–120 V nominal power rails while maintaining low leakage (<5 µA) at full VWM.
Is JANTX1N6171US/TR bidirectional or unidirectional?
JANTX1N6171US/TR is a bidirectional Transient Voltage Suppressor. Its symmetrical silicon avalanche structure and absence of polarity marking allow it to clamp overvoltage transients equally in both directions. This makes it ideal for protecting AC-coupled signal lines, floating power domains, or differential buses where voltage polarity reversal may occur during fault conditions.
What package type does JANTX1N6171US/TR use?
JANTX1N6171US/TR uses a hermetically sealed voidless hard-glass "C" package - also known as SQ-MELF - with tungsten slugs and tin/lead-plated copper terminals. Its dimensions are BD = 0.183–0.202 in (4.65–5.13 mm) and BL = 0.205–0.245 in (5.21–6.22 mm), and it weighs approximately 1100 mg. The package is optimized for surface-mount reflow and meets MIL-PRF-19500/516 mechanical requirements.
Does JANTX1N6171US/TR meet IEC61000-4-5 surge immunity standards?
Yes, JANTX1N6171US/TR is validated for protection against secondary effects of lightning per IEC61000-4-5. Its 1500 W peak pulse power rating at 10/1000 µs waveform and clamping voltage of 218.4 V at 6.9 A enable compliance with Level 4 (4 kV line-to-ground) surge testing. This performance is achieved without external circuitry and is intrinsic to the device's avalanche structure and hermetic packaging.
What is the junction temperature range for JANTX1N6171US/TR?
The JANTX1N6171US/TR operates across a junction temperature range of –55 °C to +175 °C. This wide range supports deployment in extreme environments such as aircraft engine bays, satellite payloads, and nuclear facilities. Derating curves confirm usable power dissipation up to 150 °C end-cap temperature, with linear reduction to zero at 175 °C per MIL-PRF-19500/516 thermal specifications.
JANTX1N6171US/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):
- 121.6V
- Voltage - Breakdown (Min):
- 152V
- Voltage - Clamping (Max) @ Ipp:
- 218.4V
- Current - Peak Pulse (10/1000µs):
- 6.9A
- 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
JANTX1N6171US/TR FAQ
1.How can I place an order for JANTX1N6171US/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6171US/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 JANTX1N6171US/TR reliable?
The price and inventory of JANTX1N6171US/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6171US/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N6171US/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6171US/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N6171US/TR?
JANTX1N6171US/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6171US/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 JANTX1N6171US/TR?
For technical support, including JANTX1N6171US/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6171US/TR requirements.
6.How does Aetrix verify that JANTX1N6171US/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N6171US/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 JANTX1N6171US/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N6171US/TR?
All JANTX1N6171US/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6171US/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 JANTX1N6171US/TR part is unused and in its original packaging.
Return procedure for JANTX1N6171US/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6171US/TR Tags
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