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Microchip Technology JANTXV1N6146AUS/TR
- Part No.:
- JANTXV1N6146AUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JANTXV1N6146AUS/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
JANTXV1N6146AUS/TR from Microsemi is a voidless hermetically sealed surface-mount bidirectional Transient Voltage Suppressor (TVS) qualified to MIL-PRF-19500/516 at JANTXV level. It provides 11.4 V working standoff voltage (VWM), 14.25 V minimum breakdown voltage (V(BR)) at 75 mA, and clamps transients to 21.0 V at 71.4 A peak pulse current (IPP) for 10/1000 µs waveform - used in avionics power rail protection and high-reliability military interface circuits.
For engineers reviewing the JANTXV1N6146AUS/TR datasheet, JANTXV1N6146AUS/TR pinout, JANTXV1N6146AUS/TR application, or JANTXV1N6146AUS/TR equivalent, key selection criteria include its 1500 W peak pulse power rating, -55°C to +175°C operating junction temperature range, Category 1 metallurgical bonds, RoHS-compliant tin/lead terminations (e3), and SQ-MELF "C" package compatibility with EIA-481-B tape-and-reel handling.
Technical Context
This TVS operates bidirectionally with no polarity marking and relies on hard-glass construction with tungsten slugs for thermal stability. Its clamping behavior is defined by a 21.0 V VC at 71.4 A IPP under 10/1000 µs surge, with 0.08 %/°C temperature coefficient of V(BR) ensuring predictable voltage drift across temperature.
The device uses internal Category 1 metallurgical bonds and triple-layer passivation to achieve radiation hardness per MicroNote 050 and ESD immunity per MIL-STD-750 Method 1020. It meets IEC61000-4-2 (ESD), IEC61000-4-4 (EFT), and select levels of IEC61000-4-5 (lightning secondary effects).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11.4 V - maximum continuous reverse standoff voltage before conduction begins; sets minimum system operating margin. |
| V(BR) min | 14.25 V @ 75 mA - guaranteed breakdown onset; defines threshold for transient clamping activation. |
| VC @ IPP | 21.0 V @ 71.4 A - clamped voltage during 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPP | 1500 W - peak pulse power handling for 10/1000 µs waveform; enables robust lightning/surge immunity. |
| TJ Range | -55°C to +175°C - full military-grade junction temperature range; supports operation in extreme environments. |
| RθJEC | 5.0 °C/W - junction-to-end-cap thermal resistance; informs heatsinking requirements for sustained pulse duty cycles. |
| αV(BR) | 0.08 %/°C - temperature coefficient of breakdown voltage; allows accurate derating in wide-temperature designs. |
Pinout & Package
Package: SQ-MELF "C" (hermetically sealed voidless hard glass with tungsten slugs); dimensions per Microsemi T4-LDS-0278-1 Rev. 2: 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). Terminals are tin/lead plated copper; no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode | Bidirectional terminal pair | No polarity - either end serves as anode or cathode depending on transient polarity; symmetric clamping behavior. |
| End Cap | Thermal and mechanical interface | Primary heat path to PCB; requires direct thermal contact with copper pour or heatsink for >5 W steady-state dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic seal | Eliminates moisture ingress and internal corrosion over 20+ year field life in humid/marine environments. |
| Category 1 metallurgical bonds | Enables survivability under mechanical shock (≥1000 g) and thermal cycling (−55°C ↔ +125°C, 1000 cycles) without bond fatigue. |
| Triple-layer passivation | Prevents surface leakage and parametric drift under high-humidity bias stress (85°C/85% RH, 1000 hrs). |
| MIL-PRF-19500/516 qualification | Validated reliability for JANTXV-level screening including burn-in, temperature cycling, and lot acceptance testing per military standard. |
Applications
| Avionics Power Distribution | Military Vehicle Data Buses |
|---|---|
Use Scenario: Protection of 28 V DC power rails feeding flight control computers and sensor interfaces against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry points to clamp surges before reaching downstream regulators and FPGAs. Use Value: Withstands 1500 W pulses and maintains <21.0 V clamping to prevent latch-up or damage to 3.3 V/5 V logic supplies derived from the rail. | Use Scenario: Shielding CAN and MIL-STD-1553 bus lines in armored vehicle electronics against ESD and coupled lightning-induced surges. IC Role / Device Role / Timing Role: Low-capacitance TVS installed across differential pairs to suppress common-mode transients without signal integrity degradation. Use Value: 71.4 A IPP rating and 21.0 V VC ensure compliance with MIL-STD-461G CS115 while preserving bus timing margins. |
| Spacecraft Payload Interfaces | Naval Radar Signal Conditioning |
Use Scenario: Safeguarding analog front-ends of star trackers and radiation-hardened ADCs from single-event transients induced by cosmic rays. IC Role / Device Role / Timing Role: Standoff-rated TVS integrated into input filter networks to absorb sub-microsecond spikes without affecting DC bias or low-noise gain stages. Use Value: Inherent radiation hardness (per MicroNote 050) and 0.08 %/°C αV(BR) enable stable clamping performance in orbit without recalibration. | Use Scenario: Protecting RF detector diodes and IF amplifiers in shipboard radar receivers from antenna-coupled EMP and switching noise. IC Role / Device Role / Timing Role: Fast-response TVS mounted at RF module inputs to limit voltage excursions during high-power transmit/receive transitions. Use Value: 10/1000 µs waveform capability and 5.0 °C/W RθJEC allow pulsed operation up to 10 Hz without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N6146US/TR | No "A" suffix → 5% higher VC (22.05 V), 5% lower V(BR) min (13.54 V), 5% lower IPP (67.8 A) | Reduced clamping margin and lower surge current capacity; less suitable for high-energy lightning events | Select JANTXV1N6146AUS/TR when tighter V(BR) tolerance and higher IPP are required for mission-critical systems. |
| SMCJ12A | Commercial-grade SMC package; 12 V VWM, 13.3 V V(BR) min, 19.9 V VC @ 75.4 A; not MIL-qualified | Lacks MIL-PRF-19500/516 screening, radiation hardness, and Category 1 bonding; unsuitable for space or nuclear-hardened use | Use SMCJ12A only in non-military commercial designs where cost and volume outweigh reliability requirements. |
Compared with JANTXV1N6146US/TR and SMCJ12A, JANTXV1N6146AUS/TR delivers superior surge margin via tighter V(BR) control and higher IPP, while maintaining full military qualification - critical for aerospace platforms where failure modes must be eliminated, not mitigated.
Availability
JANTXV1N6146AUS/TR is available at Aetrix Electronics and suitable for avionics power distribution, military vehicle data buses, spacecraft payload interfaces, and naval radar signal conditioning requiring stable component supply across extended product lifecycles.
Supply support for JANTXV1N6146AUS/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-temperature, and MIL-spec components.
The 1N6138AUS–1N6173AUS series was developed specifically for military and space applications demanding hermetic sealing, Category 1 bonding, and guaranteed surge performance under extreme environmental stress.
FAQ
What is the clamping voltage of JANTXV1N6146AUS/TR under a 10/1000 µs surge?
JANTXV1N6146AUS/TR clamps to a maximum of 21.0 V when subjected to a 71.4 A peak pulse current with a 10/1000 µs waveform. This value is measured per MIL-STD-750 Method 3013 and is guaranteed across the full -55°C to +175°C junction temperature range. The clamping voltage ensures downstream 12 V and 15 V logic circuits remain within safe operating limits during transient events.
Is JANTXV1N6146AUS/TR RoHS compliant?
JANTXV1N6146AUS/TR is not RoHS compliant - it uses tin/lead (SnPb) terminations per MIL-PRF-19500/516 requirements. RoHS-compliant matte-tin versions (e3) are available only in commercial-grade variants (e.g., 1N6146AUS without JAN/JANTXV prefix), not in JANTXV-qualified lots. JANTXV1N6146AUS/TR remains exempt under RoHS Annex III for military and space applications.
What does the "A" suffix mean in JANTXV1N6146AUS/TR?
The "A" suffix in JANTXV1N6146AUS/TR indicates tighter electrical tolerances: standard V(BR) minimum (14.25 V), lower clamping voltage (21.0 V), and higher peak pulse current (71.4 A) versus the non-A version. Per Microsemi nomenclature, non-A parts have 5% higher VC, 5% lower V(BR) min, and 5% lower IPP - making JANTXV1N6146AUS/TR the preferred choice for precision surge margin control.
Can JANTXV1N6146AUS/TR be used in surface-mount reflow processes?
Yes, JANTXV1N6146AUS/TR supports standard leaded reflow profiles with a maximum solder temperature of 260°C for 10 seconds, per MIL-STD-202 Method 210. Its hard-glass SQ-MELF package and tungsten slug construction withstand thermal shock without cracking or delamination. Reflow must avoid exceeding 260°C to preserve hermetic seal integrity and metallurgical bond strength.
What is the thermal resistance from junction to end cap for JANTXV1N6146AUS/TR?
The thermal resistance from junction to end cap (RθJEC) for JANTXV1N6146AUS/TR is 5.0 °C/W, as specified in the Microsemi T4-LDS-0278-1 datasheet. This parameter governs heat transfer from the silicon die to the external end cap surface, enabling accurate thermal modeling when mounting on thermally enhanced PCB pads or heatsinks - critical for applications involving repetitive surge duty cycles.
JANTXV1N6146AUS/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):
- 11.4V
- Voltage - Breakdown (Min):
- 14.25V
- Voltage - Clamping (Max) @ Ipp:
- 21V
- Current - Peak Pulse (10/1000µs):
- 71.4A
- 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
JANTXV1N6146AUS/TR FAQ
1.How can I place an order for JANTXV1N6146AUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N6146AUS/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 JANTXV1N6146AUS/TR reliable?
The price and inventory of JANTXV1N6146AUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N6146AUS/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N6146AUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N6146AUS/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N6146AUS/TR?
JANTXV1N6146AUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N6146AUS/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 JANTXV1N6146AUS/TR?
For technical support, including JANTXV1N6146AUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N6146AUS/TR requirements.
6.How does Aetrix verify that JANTXV1N6146AUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N6146AUS/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 JANTXV1N6146AUS/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N6146AUS/TR?
All JANTXV1N6146AUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N6146AUS/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 JANTXV1N6146AUS/TR part is unused and in its original packaging.
Return procedure for JANTXV1N6146AUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N6146AUS/TR Tags
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