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Microchip Technology JANS1N6143AUS/TR
- Part No.:
- JANS1N6143AUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JANS1N6143AUS/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,957
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Product details
Overview
JANS1N6143AUS/TR from Microsemi is a voidless hermetically sealed surface-mount bidirectional Transient Voltage Suppressor (TVS) qualified to MIL-PRF-19500/516 at JANS level. It provides 8.4 V working peak standoff voltage (VWM), 10.45 V minimum breakdown voltage (V(BR)) at 125 mA, and clamps transients to 15.6 V at 96.2 A (10/1000 µs pulse), delivering 1500 W peak pulse power for lightning surge and ESD protection in high-reliability aerospace and defense systems.
For engineers reviewing the JANS1N6143AUS/TR datasheet, JANS1N6143AUS/TR pinout, JANS1N6143AUS/TR application, or JANS1N6143AUS/TR equivalent, key selection criteria include its JANS-level military qualification, bidirectional clamping behavior, 1500 W 10/1000 µs rating, -55°C to +175°C operating junction temperature range, and SQ-MELF "C" package compatibility with automated SMT placement.
Technical Context
This TVS operates bidirectionally with no polarity marking and uses hard-glass construction with internal Category 1 metallurgical bonds for radiation hardness and long-term reliability under thermal cycling. Its clamping voltage of 15.6 V at 96.2 A ensures predictable overvoltage limiting during IEC61000-4-5 lightning-induced surges and IEC61000-4-2 ESD events.
The device exhibits a temperature coefficient of breakdown voltage (αV(BR)) of 0.07 %/°C and supports steady-state off-state power dissipation up to 3.0 W at 25°C ambient, derating linearly to zero at 175°C junction temperature. Thermal resistance from junction to end cap is 5.0 °C/W, enabling effective heat transfer in constrained board layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.4 V - Maximum continuous reverse/forward voltage before conduction begins; defines safe operating window in protected circuit. |
| V(BR) min | 10.45 V @ 125 mA - Minimum voltage at which device enters controlled avalanche; ensures consistent turn-on across temperature and lot. |
| VC @ IPP | 15.6 V @ 96.2 A (10/1000 µs) - Clamped voltage during worst-case surge; determines maximum stress on downstream ICs. |
| PPP | 1500 W - Peak transient energy handling capability; enables protection against Level 4 IEC61000-4-5 surges. |
| TJ Range | -55°C to +175°C - Full military-grade junction temperature range; validated for space, avionics, and engine-mounted electronics. |
| RθJEC | 5.0 °C/W - Junction-to-end-cap thermal resistance; supports direct thermal coupling to heatsink or metal-core PCB. |
| ID @ VWM | 20 µA - Low leakage current at standoff voltage; minimizes standby power loss and avoids false triggering. |
Pinout & Package
Package: SQ-MELF "C" - Voidless hermetically sealed hard-glass case 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). Marking: None. Polarity: Not applicable (bidirectional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | Either end serves as anode or cathode depending on transient polarity; no orientation required during placement. |
| End Cap (both ends) | Thermal and electrical interface | Directly contacts PCB pads for both current return and heat sinking; requires full-surface solder wetting per MIL-STD-2000A. |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Eliminates moisture ingress and internal delamination risk over 20+ year field life in vacuum or humid environments. |
| Category 1 metallurgical bonds | Ensures bond integrity under 100,000 thermal cycles (-55°C/+175°C); required for JANS-level qualification per MIL-PRF-19500/516. |
| Triple-layer passivation | Prevents surface leakage and contamination-induced parameter drift in high-humidity or salt-fog conditions. |
| JANS-level qualification | Validated for use in mission-critical systems including satellite power distribution, flight control interfaces, and radar front-ends. |
| IEC61000-4-2/4-4/4-5 compliance | Provides certified immunity to ±15 kV contact ESD, 4 kV EFT bursts, and 2 kV/4 kV lightning-induced surges (line-earth/line-line). |
Applications
| Aerospace Power Distribution | Avionics Data Bus Protection |
|---|---|
|
Use Scenario: Protecting 28 V DC bus inputs in satellite power conditioning units from load dump and lightning-induced transients. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across input rails to limit surge energy before DC-DC converters. Use Value: Withstands 1500 W 10/1000 µs pulses without degradation, maintaining VWM stability over 100,000 thermal cycles per MIL-PRF-19500/516. |
Use Scenario: Safeguarding ARINC 429 receiver inputs against ESD and induced surges in flight management computers. IC Role / Device Role / Timing Role: Low-leakage (20 µA) standoff device that clamps only during transients, preserving signal integrity during normal operation. Use Value: 15.6 V clamping voltage ensures downstream receivers remain within absolute maximum ratings even during ±15 kV ESD events. |
| Military Vehicle Electronics | Nuclear Instrumentation Systems |
|
Use Scenario: Shielding CAN bus nodes in armored vehicle control modules from ignition noise and EMP coupling. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) bidirectional suppressor mounted directly at connector entry points. Use Value: Radiation-hardened construction (per MicroNote 050) maintains parametric stability after 100 krad(Si) total ionizing dose exposure. |
Use Scenario: Protecting gamma spectrometer front-end amplifiers from cable discharge events in reactor monitoring systems. IC Role / Device Role / Timing Role: High-reliability standoff device with <20 µA leakage to prevent baseline shift in ultra-low-current analog chains. Use Value: Hermetic seal prevents outgassing in vacuum chambers and eliminates parameter drift in high-radiation, high-temperature enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N6143AUS | Same electrical specs but qualified to JANTXV level (lower screening rigor than JANS); RθJEC = 5.0 °C/W unchanged. | Approved for non-flight-critical ground support equipment; not cleared for launch-vehicle or orbital systems. | Select when full JANS qualification is not mandated and cost reduction is prioritized without sacrificing clamping performance. |
| 1N6143AUS (commercial) | Identical VWM, V(BR), VC, and PPP; lacks MIL-PRF-19500/516 qualification and radiation hardness documentation. | Limited to benign-environment industrial controls; unsuitable for aerospace, defense, or nuclear applications. | Use only for prototyping or commercial subsystems where traceability, burn-in, and radiation data are not required. |
Compared with JANTXV1N6143AUS and 1N6143AUS, the JANS1N6143AUS/TR delivers verified radiation tolerance, extended temperature validation, and full JANS-level screening-making it the sole choice for systems requiring guaranteed operation after TID exposure and in sustained 175°C ambient conditions.
Availability
JANS1N6143AUS/TR is available at Aetrix Electronics and suitable for aerospace power distribution, avionics data bus protection, and military vehicle electronics requiring stable component supply across extended product lifecycles and obsolescence-sensitive programs.
Supply support for JANS1N6143AUS/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 manufacturer specializing in high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The 1N6138AUS–1N6173AUS series was designed specifically to meet MIL-PRF-19500/516 requirements for hermetic, voidless, high-surge TVS devices used in mission-critical electronic subsystems.
FAQ
What is the JANS1N6143AUS/TR's qualification level per MIL-PRF-19500/516?
The JANS1N6143AUS/TR is fully qualified to the JANS level under MIL-PRF-19500/516, the highest reliability tier for discrete semiconductors. This includes rigorous screening for thermal shock, mechanical shock, vibration, and long-term life testing. The JANS1N6143AUS/TR undergoes lot acceptance testing per Method 5005 and environmental stress screening per Method 5007, ensuring suitability for flight-critical and nuclear applications.
Does the JANS1N6143AUS/TR have polarity markings, and how is it mounted?
No, the JANS1N6143AUS/TR is a bidirectional TVS with no polarity markings-either end may be connected to either side of the protected line. It mounts in the SQ-MELF "C" package using standard reflow profiles for tin/lead terminations, with full end-cap solder coverage required to ensure thermal and electrical integrity. Pad layout follows Microsemi's recommended dimensions (BD: 0.183–0.202 in, BL: 0.205–0.245 in).
What is the clamping voltage of the JANS1N6143AUS/TR under a 10/1000 µs surge?
The JANS1N6143AUS/TR clamps to a maximum of 15.6 V when subjected to a 96.2 A peak pulse current with a 10/1000 µs waveform. This value is guaranteed across the full -55°C to +175°C junction temperature range and forms the basis for downstream IC protection margining in designs such as avionics power inputs and sensor interfaces.
Is the JANS1N6143AUS/TR RoHS compliant?
No, the JANS1N6143AUS/TR is not RoHS compliant. Its terminations use tin/lead plating per MIL-STD-1581, consistent with JANS-level reliability requirements. RoHS-compliant matte-tin versions are available only in commercial-grade variants (e.g., 1N6143AUS), not in JANS-qualified parts.
How does the JANS1N6143AUS/TR perform under radiation exposure?
The JANS1N6143AUS/TR is inherently radiation-hardened per Microsemi MicroNote 050, demonstrating stable VWM, V(BR), and VC parameters after exposure to ≥100 krad(Si) total ionizing dose. This makes it suitable for satellite power systems, nuclear instrumentation, and other high-radiation environments where parametric shift must remain within specification limits.
JANS1N6143AUS/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):
- 8.4V
- Voltage - Breakdown (Min):
- 10.45V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 96.2A
- 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
JANS1N6143AUS/TR FAQ
1.How can I place an order for JANS1N6143AUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N6143AUS/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 JANS1N6143AUS/TR reliable?
The price and inventory of JANS1N6143AUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N6143AUS/TR is usually 5 days.
3.What payment methods are accepted for JANS1N6143AUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N6143AUS/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N6143AUS/TR?
JANS1N6143AUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N6143AUS/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 JANS1N6143AUS/TR?
For technical support, including JANS1N6143AUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N6143AUS/TR requirements.
6.How does Aetrix verify that JANS1N6143AUS/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N6143AUS/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 JANS1N6143AUS/TR meets industry standards.
7.What is the process for return or replacement of JANS1N6143AUS/TR?
All JANS1N6143AUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N6143AUS/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 JANS1N6143AUS/TR part is unused and in its original packaging.
Return procedure for JANS1N6143AUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANS1N6143AUS/TR Tags
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