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Microchip Technology JANS1N6145AUS/TR
- Part No.:
- JANS1N6145AUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JANS1N6145AUS/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,554
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Product details
Overview
JANS1N6145AUS/TR from Microsemi is a hermetically sealed, voidless, bidirectional Transient Voltage Suppressor (TVS) qualified to MIL-PRF-19500/516 at JANS reliability level. It features a 9.9 V working standoff voltage (VWM), 12.35 V minimum breakdown voltage (V(BR)) at 100 mA, 18.2 V clamping voltage (VC) at 82.4 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 JANS1N6145AUS/TR datasheet, JANS1N6145AUS/TR pinout, JANS1N6145AUS/TR application, or JANS1N6145AUS/TR equivalent, key selection criteria include its JANS-level qualification, bidirectional clamping behavior, glass-body thermal resistance (5.0 °C/W), and compatibility with MIL-STD-750 ESD testing and IEC61000-4-5 lightning surge immunity.
Technical Context
This TVS operates as a voltage-clamped shunt protector with symmetrical bidirectional conduction - no polarity marking required. Its hard-glass construction uses internal Category 1 metallurgical bonds and triple-layer passivation to ensure radiation hardness per MicroNote 050 and immunity to MIL-STD-750 Method 1020 ESD stress.
It delivers 1500 W peak pulse power under 10/1000 µs waveform while maintaining 5.0 µA standby current at VWM and 20 µA maximum ID at 9.9 V. Thermal derating begins linearly above 150 °C end-cap temperature, reaching zero power at 175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.9 V - maximum continuous DC or repetitive peak reverse voltage before clamping initiates |
| V(BR) min | 12.35 V @ 100 mA - guaranteed breakdown threshold defining turn-on precision |
| VC @ IPP | 18.2 V @ 82.4 A - clamped voltage during 10/1000 µs surge, limiting downstream voltage stress |
| PPP | 1500 W - peak transient energy absorption capacity without failure |
| TJ range | –55 °C to +175 °C - operational junction temperature span for space-grade deployment |
| RθJEC | 5.0 °C/W - thermal resistance from junction to end cap, critical for pulsed-power thermal design |
| αV(BR) | 0.08 %/°C - temperature coefficient governing V(BR) drift over temperature |
Pinout & Package
Package: Hermetically sealed voidless hard-glass "C" package (SQ-MELF style) 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).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Common terminal pair | No polarity marking; symmetric conduction enables AC line or differential bus protection without orientation constraints |
| End Cap (both ends) | Thermal & electrical interface | Direct thermal path to PCB pad; dual-end mounting supports high-current pulse dissipation via RθJEC = 5.0 °C/W |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or floating signal/power lines without polarity concerns |
| Category 1 metallurgical bonds | Guarantees mechanical integrity and bond reliability under thermal cycling and shock per MIL-PRF-19500/516 |
| Triple-layer passivation | Prevents surface leakage and moisture ingress in humid or contaminated environments |
| JANS qualification | Meets full MIL-PRF-19500/516 screening including burn-in, temperature cycling, and life test for space-qualified use |
Applications
| Aerospace Power Distribution | Military Vehicle Data Buses |
|---|---|
Use Scenario: Protection of 28 V DC primary power rails in satellite power management units against load dump and ESD events. IC Role / Device Role / Timing Role: Shunt TVS device clamping transients to ≤18.2 V during 10/1000 µs surges up to 82.4 A. Use Value: Prevents latch-up or destruction of downstream DC-DC converters rated for 20 V absolute max input. | Use Scenario: Surge suppression on MIL-STD-1553B data bus stubs exposed to induced lightning currents. IC Role / Device Role / Timing Role: Bidirectional voltage clamp limiting common-mode transients to <20 V across bus pairs. Use Value: Maintains signal integrity by holding bus differential swing within ±12 V compliance window during IEC61000-4-5 Level 4 surges. |
| Avionics Sensor Interfaces | Spacecraft Battery Monitoring |
Use Scenario: Input protection for analog front-ends measuring engine vibration or pressure in jet turbine control systems. IC Role / Device Role / Timing Role: Low-leakage (≤20 µA @ 9.9 V) TVS preserving sensor bias accuracy while clamping EFT bursts. Use Value: Eliminates need for series resistors or RC filters that degrade bandwidth, enabling >10 kHz sensor response. | Use Scenario: Overvoltage protection on lithium-thionyl chloride battery cell monitoring circuits in deep-space probes. IC Role / Device Role / Timing Role: Radiation-hardened shunt suppressor operating continuously at –55 °C to +175 °C with no parameter shift. Use Value: Ensures long-term reliability over 15+ year missions where replacement is impossible and failure is catastrophic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N6145AUS | Same electrical specs but JANTXV qualification level; lower screening rigor than JANS (no radiation hardness verification) | Suitable for ground-based military systems where total ionizing dose (TID) exposure is negligible | Select when cost and lead time are prioritized over space-grade radiation tolerance |
| 1N6145AUS (commercial) | Identical VWM, V(BR), VC, and PPP; not MIL-qualified; RoHS-compliant matte-tin plating available | Applicable only in non-military industrial environments with ambient temperature <125 °C | Choose for prototyping or commercial aerospace subsystems requiring rapid procurement and RoHS compliance |
Compared with JANS1N6145AUS/TR, JANTXV1N6145AUS offers reduced screening cost and faster availability but lacks verified radiation hardness; 1N6145AUS provides identical clamping performance at lower price and RoHS option, yet excludes JANS environmental and reliability validation required for flight hardware.
Availability
JANS1N6145AUS/TR is available at Aetrix Electronics and suitable for aerospace power distribution, military vehicle data buses, avionics sensor interfaces, and spacecraft battery monitoring requiring stable component supply across extended lifecycle programs.
Supply support for JANS1N6145AUS/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.
The JANS1N6145AUS/TR belongs to Microsemi's military-qualified TVS diode family engineered specifically for survivability in extreme environments - including radiation exposure, wide temperature swings, and high-energy transients.
FAQ
What is the clamping voltage of JANS1N6145AUS/TR at its rated peak pulse current?
JANS1N6145AUS/TR has a maximum clamping voltage (VC) of 18.2 V when subjected to its rated 82.4 A peak pulse current (IPP) under the standard 10/1000 µs waveform. This value is measured per MIL-PRF-19500/516 test conditions and defines the upper voltage limit imposed on protected circuitry during surge events.
Is JANS1N6145AUS/TR suitable for bidirectional signal line protection?
Yes, JANS1N6145AUS/TR is a bidirectional TVS with no polarity marking, making it suitable for protecting AC-coupled or floating differential signal lines such as MIL-STD-1553B, RS-422, or isolated sensor outputs. Its symmetrical breakdown ensures equal clamping in both directions without requiring orientation-specific placement.
Does JANS1N6145AUS/TR meet radiation hardness requirements for space applications?
Yes, JANS1N6145AUS/TR is inherently radiation hard per Microsemi MicroNote 050 and qualified to MIL-PRF-19500/516 JANS level, which includes radiation testing protocols. Its hard-glass construction and Category 1 metallurgical bonds ensure functionality after total ionizing dose (TID) exposure typical in low-Earth and geosynchronous orbits.
What is the thermal resistance from junction to end cap for JANS1N6145AUS/TR?
The thermal resistance from junction to end cap (RθJEC) for JANS1N6145AUS/TR is 5.0 °C/W. This parameter governs how effectively heat generated during transient clamping is conducted out through the end caps into the PCB, directly impacting safe repetition rate and sustained surge handling capability.
How does the "A" suffix in JANS1N6145AUS/TR affect its electrical specifications?
The "A" suffix in JANS1N6145AUS/TR denotes tighter voltage tolerances: it specifies minimum breakdown voltage (V(BR)) and maximum clamping voltage (VC) without the ±5% variation applied to non-A versions. For JANS1N6145AUS/TR, this means guaranteed V(BR) ≥12.35 V and VC ≤18.2 V - critical for deterministic system-level surge margin analysis.
JANS1N6145AUS/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):
- 9.9V
- Voltage - Breakdown (Min):
- 12.35V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82.4A
- 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
JANS1N6145AUS/TR FAQ
1.How can I place an order for JANS1N6145AUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N6145AUS/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 JANS1N6145AUS/TR reliable?
The price and inventory of JANS1N6145AUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N6145AUS/TR is usually 5 days.
3.What payment methods are accepted for JANS1N6145AUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N6145AUS/TR transactions.
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4.How is shipping managed for JANS1N6145AUS/TR?
JANS1N6145AUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N6145AUS/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 JANS1N6145AUS/TR?
For technical support, including JANS1N6145AUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N6145AUS/TR requirements.
6.How does Aetrix verify that JANS1N6145AUS/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N6145AUS/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 JANS1N6145AUS/TR meets industry standards.
7.What is the process for return or replacement of JANS1N6145AUS/TR?
All JANS1N6145AUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N6145AUS/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 JANS1N6145AUS/TR part is unused and in its original packaging.
Return procedure for JANS1N6145AUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANS1N6145AUS/TR Tags
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