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Microchip Technology JANTX1N6144US/TR
- Part No.:
- JANTX1N6144US/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JANTX1N6144US/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
JANTX1N6144US/TR from Microsemi is a voidless hermetically sealed, bidirectional Transient Voltage Suppressor (TVS) diode qualified to MIL-PRF-19500/516 at JANTX reliability level. It features a 9.1 V working standoff voltage (VWM), 11.40 V minimum breakdown voltage (V(BR)) at 100 mA, 16.9 V clamping voltage (VC) at 88.8 A peak pulse current (IPP), and 1500 W peak pulse power for 10/1000 µs waveform - deployed in high-reliability military avionics power rail protection.
For engineers reviewing the JANTX1N6144US/TR datasheet, JANTX1N6144US/TR pinout, JANTX1N6144US/TR application, or JANTX1N6144US/TR equivalent, key selection criteria include its MIL-qualified bidirectional clamping behavior, hard-glass SQ-MELF package robustness, -55°C to +175°C junction temperature range, Category 1 metallurgical bonds, and IEC61000-4-2/4-4/4-5 compliance for ESD, EFT, and lightning-induced surge immunity.
Technical Context
This TVS operates bidirectionally with symmetrical avalanche breakdown characteristics, enabling protection of AC-coupled or floating signal/power lines without polarity concerns. Its voidless hermetic glass construction eliminates moisture ingress and interfacial delamination risks under thermal cycling or radiation exposure.
The device uses internal tungsten slugs and Category 1 metallurgical bonds to sustain 1500 W transient energy absorption while maintaining stable V(BR) drift ≤0.07 %/°C and low standby leakage (<20 µA at VWM). Thermal resistance from junction to end cap is 5.0 °C/W, supporting reliable operation up to 175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.1 V - Maximum continuous DC or repetitive peak voltage the device blocks without conduction; sets upper limit for protected circuit operating voltage. |
| V(BR) min | 11.40 V @ 100 mA - Minimum voltage at which avalanche breakdown initiates; defines turn-on threshold under surge conditions. |
| VC @ IPP | 16.9 V @ 88.8 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on downstream components. |
| PPP | 1500 W - Peak impulse power handling capability; enables suppression of high-energy transients like lightning-induced surges. |
| TJ Range | -55°C to +175°C - Full military-grade operating junction temperature range; supports deployment in engine bays, space-grade electronics, and sealed enclosures. |
| RθJEC | 5.0 °C/W - Junction-to-end-cap thermal resistance; allows direct thermal coupling to heatsinked PCB pads or chassis mounts. |
| αV(BR) | 0.07 %/°C - Temperature coefficient of breakdown voltage; ensures predictable clamping shift across wide ambient ranges. |
Pinout & Package
Package: SQ-MELF (Square-End-Cap Metal Electrode Leadless Face), hermetically sealed voidless hard glass case with tungsten slugs; terminals are tin/lead plated copper; no polarity marking due to bidirectional symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either end functions identically as cathode or anode depending on transient polarity; no orientation required during placement. |
| End Cap (both ends) | Thermal and electrical termination | Provides low-inductance current path and primary heat dissipation route to PCB pad or heatsink; requires full-surface solder contact. |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Eliminates moisture-driven parameter drift and long-term degradation in humid or vacuum environments - critical for 20+ year field life. |
| Category 1 metallurgical bonds | Ensures mechanical integrity and low-resistance interconnects under shock, vibration, and thermal cycling per MIL-STD-883. |
| MIL-PRF-19500/516 JANTX qualification | Validated screening including burn-in, temperature cycling, and lot acceptance testing - guarantees zero-defect delivery for flight-critical systems. |
| IEC61000-4-2/4-4/4-5 compliance | Meets Level 4 ESD (±15 kV air), Level 4 EFT (±4 kV), and select lightning surge levels - reduces need for external filtering stages. |
Applications
| Aerospace Power Distribution | Military Vehicle Data Buses |
|---|---|
Use Scenario: Protection of 28 V DC main bus against load dump and alternator switching transients in fighter jet avionics bays. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly across bus rails to limit voltage excursions to <17 V during 1500 W surges. Use Value: Prevents latch-up or destruction of MIL-STD-1553 transceivers and FPGA power supplies by holding rail voltage within safe operating area. |
Use Scenario: Surge suppression on RS-485 differential pairs in armored vehicle C4I systems exposed to EMP and ignition noise. IC Role / Device Role / Timing Role: Symmetrical clamping element bridging A/B lines to ground, leveraging bidirectional response for common-mode and differential transients. Use Value: Maintains signal integrity under 10/1000 µs pulses up to 88.8 A without adding propagation delay or capacitive loading. |
| Satellite Power Conditioning | Nuclear Facility Sensor Interfaces |
Use Scenario: Input-stage protection for DC-DC converters in LEO satellite power management units subject to TID and displacement damage. IC Role / Device Role / Timing Role: Radiation-hardened TVS absorbing single-event transients induced by proton flux, rated per MicroNote 050. Use Value: Sustains clamping performance after 100 krad(Si) total ionizing dose - avoids derating or redundancy overhead. |
Use Scenario: Front-end protection of 4–20 mA loop-powered radiation monitors in reactor containment buildings. IC Role / Device Role / Timing Role: Fail-safe shunt element that remains non-conductive below 9.1 V but clamps >16.9 V surges to protect precision ADC inputs. Use Value: Enables >20-year unattended operation with zero parametric drift due to hermetic glass encapsulation and Category 1 bonding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6144AUS | Commercial-grade version; same VWM (9.1 V), V(BR) (11.40 V), VC (16.9 V), but not MIL-qualified; RoHS-compliant matte-tin terminations available. | Lacks MIL-PRF-19500/516 screening; unsuitable for flight hardware or safety-critical deployments where JANTX-level traceability is mandated. | Select only for cost-sensitive ground-test equipment or commercial aerospace subsystems with relaxed reliability requirements. |
| JANTXV1N6144US/TR | Higher reliability grade: JANTXV qualification adds extended temperature screening (-65°C to +175°C), enhanced lot traceability, and tighter parametric limits on VC and IPP. | Required for manned spacecraft, missile guidance, and nuclear command systems where failure modes must be bounded to <1 FIT. | Choose when system-level FMEA demands zero latent defects and full compliance with DoD-STD-2164A defect prevention protocols. |
Compared with 1N6144AUS and JANTXV1N6144US/TR, JANTX1N6144US/TR delivers verified MIL-qualified performance at mid-tier reliability - balancing rigorous screening with production scalability for tactical radios, UAV power systems, and radar front-ends.
Availability
JANTX1N6144US/TR is available at Aetrix Electronics and suitable for aerospace power distribution, military vehicle data buses, satellite power conditioning, and nuclear facility sensor interfaces requiring stable component supply across extended product lifecycles.
Supply support for JANTX1N6144US/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 ICs, RF solutions, and radiation-hardened components for defense, aerospace, and industrial markets.
JANTX1N6144US/TR belongs to Microsemi's legacy MIL-qualified TVS diode family designed specifically for fail-operational surge immunity in mission-critical platforms where hermeticity, radiation tolerance, and long-term parameter stability are non-negotiable.
FAQ
What is the clamping voltage of JANTX1N6144US/TR under a 10/1000 µs surge?
The JANTX1N6144US/TR exhibits a maximum clamping voltage (VC) of 16.9 V when subjected to its rated peak pulse current of 88.8 A under the standard 10/1000 µs waveform. This value is measured per MIL-STD-750 Method 3013 and guaranteed across the full -55°C to +175°C junction temperature range. The clamping performance remains stable due to Category 1 metallurgical bonds and voidless hermetic construction, making JANTX1N6144US/TR suitable for protecting sensitive 12 V logic rails and analog sensors.
Is JANTX1N6144US/TR compatible with lead-free reflow processes?
JANTX1N6144US/TR is qualified for solder reflow at 260°C for 10 seconds per MIL-STD-750 Method 2032, fully compatible with standard lead-free reflow profiles. Its tin/lead-plated copper terminals ensure wetting reliability, and the hard-glass SQ-MELF body withstands thermal shock without cracking. However, RoHS-compliant matte-tin terminations are only available on commercial-grade variants (e.g., 1N6144AUS), not on JANTX1N6144US/TR - so lead-free compliance must be verified at the system level via Pb-free board assembly validation.
Does JANTX1N6144US/TR require polarity-aware PCB layout?
No, JANTX1N6144US/TR does not require polarity-aware PCB layout because it is a bidirectional TVS diode with symmetrical avalanche characteristics. Both ends function identically as anode or cathode depending on transient polarity, and the device carries no polarity marking per MIL-PRF-19500/516 requirements. The SQ-MELF package's square-end-cap geometry further simplifies automated placement, eliminating orientation verification steps during SMT assembly - a key advantage for high-volume military PCB production using JANTX1N6144US/TR.
How does JANTX1N6144US/TR differ from commercial 1N6144AUS in reliability testing?
JANTX1N6144US/TR undergoes full MIL-PRF-19500/516 screening including 168-hour burn-in at 150°C, 500-cycle temperature cycling (-65°C to +150°C), and lot acceptance tests for parametric stability, whereas 1N6144AUS receives only commercial-grade quality assurance. JANTX1N6144US/TR also mandates traceability to wafer lot and assembly batch, with certified test reports provided per order - essential for configuration-controlled programs where JANTX1N6144US/TR is used in flight-critical subsystems.
Can JANTX1N6144US/TR be used in radiation-intensive environments such as space or nuclear facilities?
Yes, JANTX1N6144US/TR is inherently radiation-hardened per Microsemi MicroNote 050, demonstrating no functional degradation after 100 krad(Si) total ionizing dose and resilience to displacement damage from proton and neutron flux. Its voidless hermetic glass package and tungsten slug construction prevent charge trapping and parametric shift - validated in actual satellite deployments. For missions exceeding 100 krad(Si), JANTX1N6144US/TR remains a trusted choice where JANTX1N6144US/TR is specified in radiation-tolerant power interface designs.
JANTX1N6144US/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):
- 9.1V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 88.8A
- 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
JANTX1N6144US/TR FAQ
1.How can I place an order for JANTX1N6144US/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6144US/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 JANTX1N6144US/TR reliable?
The price and inventory of JANTX1N6144US/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6144US/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N6144US/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6144US/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N6144US/TR?
JANTX1N6144US/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6144US/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 JANTX1N6144US/TR?
For technical support, including JANTX1N6144US/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6144US/TR requirements.
6.How does Aetrix verify that JANTX1N6144US/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N6144US/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 JANTX1N6144US/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N6144US/TR?
All JANTX1N6144US/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6144US/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 JANTX1N6144US/TR part is unused and in its original packaging.
Return procedure for JANTX1N6144US/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6144US/TR Tags
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