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Microchip Technology JANTX1N6158US/TR
- Part No.:
- JANTX1N6158US/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JANTX1N6158US/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,384
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Product details
Overview
JANTX1N6158US/TR from Microsemi is a voidless hermetically sealed surface-mount bidirectional Transient Voltage Suppressor (TVS) qualified to MIL-PRF-19500/516 at JANTX level. It provides 35.8 V working peak standoff voltage (VWM), 44.7 V minimum breakdown voltage (V(BR)) at 25 mA, and clamps transients to 64.6 V at 23.2 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 JANTX1N6158US/TR datasheet, JANTX1N6158US/TR pinout, JANTX1N6158US/TR application, or JANTX1N6158US/TR equivalent, key selection criteria include its military-grade reliability, bidirectional clamping behavior, glass-body thermal resistance (5.0 °C/W), and compatibility with high-reliability PCB layouts requiring RoHS-compliant tin/lead terminations and SQ-MELF footprint alignment.
Technical Context
This TVS operates bidirectionally without polarity marking and uses internal Category 1 metallurgical bonds within a hard-glass hermetic package to ensure radiation hardness and immunity to MIL-STD-750 Method 1020 ESD. Its 0.095 %/°C temperature coefficient of V(BR) enables stable clamping across –55 °C to +175 °C junction temperature range.
The device delivers 1500 W peak pulse power under 10/1000 µs waveform while maintaining 5.0 µA maximum standby current at VWM and 5.0 W off-state power rating up to 150 °C end-cap temperature. Thermal resistance from junction to end cap is fixed at 5.0 °C/W, supporting predictable derating in conduction-cooled military chassis mounts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 35.8 V - Maximum continuous reverse/forward voltage before clamping onset; defines circuit operating margin before transient response. |
| V(BR) min | 44.7 V @ 25 mA - Minimum voltage at which device enters avalanche breakdown; sets lower bound for clamping threshold consistency. |
| VC @ IPP | 64.6 V @ 23.2 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected downstream ICs. |
| PPP | 1500 W - Peak impulse power handling capacity; validates compliance with IEC61000-4-5 Level 3/4 secondary lightning surge requirements. |
| TJ Range | –55 °C to +175 °C - Full military-grade junction temperature range; supports operation in engine bay, radar, and space-qualified enclosures. |
| RθJEC | 5.0 °C/W - Junction-to-end-cap thermal resistance; enables direct thermal modeling for conduction-cooled mounting without heatsink. |
| αV(BR) | 0.095 %/°C - Temperature coefficient of breakdown voltage; ensures <±1.5 V drift over full temperature range, critical for precision rail protection. |
Pinout & Package
Package: SQ-MELF (Square-End-Cap Metal Electrode Leadless Face), hermetically sealed voidless hard glass with tungsten slugs; dimensions: BD = 0.183–0.202 in (4.65–5.13 mm), BL = 0.205–0.245 in (5.21–6.22 mm); weight ≈ 1100 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Common terminal pair | No polarity marking; symmetric terminals allow either orientation in series with protected line; requires no directional placement on PCB. |
| End Cap (both ends) | Thermal & electrical interface | Directly soldered to copper pads; serves as primary heat path (RθJEC = 5.0 °C/W) and current return path for bidirectional surge conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity constraints or external diode pairing. |
| Category 1 metallurgical bonds | Guarantees bond integrity under mechanical shock, thermal cycling, and radiation exposure-validated per MIL-PRF-19500/516 JANTX screening. |
| Voidless hermetic glass seal | Eliminates moisture ingress and internal delamination risk over 20+ year field life in humid, high-vibration aerospace environments. |
| Triple-layer passivation | Prevents surface leakage and corrosion-induced parameter drift during extended storage or operation in salt fog or contaminated atmospheres. |
Applications
| Aerospace Power Bus Protection | Avionics Data Link Interface |
|---|---|
Use Scenario: Protecting 28 V DC aircraft power distribution bus against load dump and lightning-induced surges per DO-160 Section 22. IC Role / Device Role / Timing Role: Primary bidirectional clamping element placed directly across bus rails, absorbing >1500 W transients without failure. Use Value: Maintains 35.8 V standoff while clamping to 64.6 V, ensuring downstream regulators and FPGAs remain within absolute maximum ratings during Category 4 surge events. | Use Scenario: Shielding ARINC 429 or MIL-STD-1553B data lines from ESD and coupled transients in flight control computers. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector entry point to shunt fast-rising ESD pulses (IEC61000-4-2 ±15 kV contact) before signal conditioning stages. Use Value: Sub-1 ns response time and 23.2 A peak current capability prevent bit errors and latch-up in serializer/deserializer ICs operating at 1 Mbps. |
| Military Vehicle ECUs | Satellite Payload Power Conditioning |
Use Scenario: Securing 12 V/24 V engine control unit inputs against ISO 7637-2 pulse 1/2/5a transients in tracked vehicle platforms. IC Role / Device Role / Timing Role: Front-end transient suppressor mounted directly at harness entry, thermally anchored to chassis ground plane. Use Value: 5.0 °C/W RθJEC enables direct conduction cooling into metal enclosure, sustaining repeated 10/1000 µs surges without thermal runaway. | Use Scenario: Safeguarding DC-DC converter inputs in LEO satellite power management units exposed to single-event burnout (SEB) and TID effects. IC Role / Device Role / Timing Role: Radiation-hardened TVS integrated into input filter stage to clamp electrostatic discharge from solar array arcing. Use Value: Inherent radiation tolerance per MicroNote 050 and –55 °C to +175 °C operation support unattended 15-year orbital missions without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6158AUS | Commercial-grade version; same VWM, V(BR), VC, and PPP but lacks MIL-PRF-19500/516 JANTX qualification and Category 1 bond screening. | Approved only for non-military industrial use; not acceptable for DO-160 or MIL-STD-461E-certified systems. | Select when cost sensitivity outweighs formal qualification requirements and environmental stress testing is self-managed. |
| JANTXV1N6158US | Higher reliability screening level (JANTXV); includes additional burn-in, thermal shock, and radiation tests beyond JANTX; identical electrical specs. | Required for mission-critical subsystems where zero-failure probability is mandated (e.g., flight termination systems). | Choose when system safety integrity level (ASIL-D or SIL-4) demands extended screening and traceable lot history. |
Compared with JANTX1N6158US/TR, the commercial 1N6158AUS offers identical clamping performance at lower cost but no military qualification, while JANTXV1N6158US adds screening rigor without electrical change-making JANTX the optimal balance of proven reliability and procurement availability for certified avionics programs.
Availability
JANTX1N6158US/TR is available at Aetrix Electronics and suitable for aerospace power bus protection, avionics data link interface, and military vehicle ECU applications requiring stable component supply, long-term obsolescence management, and full MIL-PRF-19500/516 traceability.
Supply support for JANTX1N6158US/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 military-spec components.
The JANTX1N6158US/TR belongs to Microsemi's legacy MIL-qualified TVS family engineered specifically for survivability in harsh electromagnetic environments-targeting DO-160, MIL-STD-461, and IEC61000-4-x compliant systems where failure is not an option.
FAQ
What is the clamping voltage of JANTX1N6158US/TR under a 10/1000 µs surge?
The JANTX1N6158US/TR clamps to a maximum of 64.6 V when subjected to a 23.2 A peak pulse current with a 10/1000 µs waveform. This value is measured per standard test conditions defined in MIL-PRF-19500/516 and is guaranteed across the full qualified temperature range. The clamping voltage directly determines the maximum stress seen by downstream circuitry, making it a critical parameter for validating protection margins in JANTX1N6158US/TR-based designs.
Is JANTX1N6158US/TR RoHS compliant?
JANTX1N6158US/TR is not RoHS compliant, as it uses traditional tin/lead plating on copper terminations per MIL-PRF-19500/516 requirements. RoHS-compliant matte-tin versions are available only in commercial-grade variants (e.g., 1N6158AUS). The JANTX1N6158US/TR maintains legacy PbSn finish to ensure solder joint reliability under extreme thermal cycling and mechanical shock-critical for aerospace and defense deployments where lead-free alternatives have not been fully qualified.
What does the "US" suffix indicate in JANTX1N6158US/TR?
The "US" suffix in JANTX1N6158US/TR denotes the SQ-MELF (Square-End-Cap) surface-mount package configuration, distinguishing it from axial-leaded versions like 1N6158. This package features square-ended metalized glass terminals optimized for automated pick-and-place and reflow soldering, with defined pad layout dimensions (BD = 0.183–0.202 in, BL = 0.205–0.245 in). The "TR" indicates tape-and-reel packaging per EIA-481-B standards, enabling high-volume SMT assembly of JANTX1N6158US/TR.
How does JANTX1N6158US/TR differ from the "A" version (e.g., JANTX1N6158AUS)?
JANTX1N6158US/TR has tighter electrical tolerances than non-"A" variants: its minimum breakdown voltage is 44.7 V (vs. 5% lower for non-A), clamping voltage is 5% lower, and peak pulse current is 5% higher. The "A" designation reflects improved process control and screening-ensuring consistent V(BR), VC, and IPP across production lots. This makes JANTX1N6158US/TR preferable for designs requiring deterministic clamping behavior, such as precision power rail protection in flight control hardware using JANTX1N6158US/TR.
Can JANTX1N6158US/TR be used in bidirectional AC signal paths?
Yes, JANTX1N6158US/TR is inherently bidirectional with no polarity marking, making it suitable for protecting AC-coupled or differential signal paths such as MIL-STD-1553B, RS-485, or transformer-isolated Ethernet interfaces. Its symmetrical IV curve ensures identical clamping in both directions, and its low leakage (<5 µA at 35.8 V) prevents signal distortion. When applied in such roles, JANTX1N6158US/TR must be placed with equal trace length to both signal lines to preserve common-mode rejection-verified in JANTX1N6158US/TR application notes for avionics data links.
JANTX1N6158US/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):
- 35.8V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.6V
- Current - Peak Pulse (10/1000µs):
- 23.2A
- 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
JANTX1N6158US/TR FAQ
1.How can I place an order for JANTX1N6158US/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6158US/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 JANTX1N6158US/TR reliable?
The price and inventory of JANTX1N6158US/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6158US/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N6158US/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6158US/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N6158US/TR?
JANTX1N6158US/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6158US/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 JANTX1N6158US/TR?
For technical support, including JANTX1N6158US/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6158US/TR requirements.
6.How does Aetrix verify that JANTX1N6158US/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N6158US/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 JANTX1N6158US/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N6158US/TR?
All JANTX1N6158US/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6158US/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 JANTX1N6158US/TR part is unused and in its original packaging.
Return procedure for JANTX1N6158US/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6158US/TR Tags
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