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Semtech Corporation JANTX1N6159AUS
- Part No.:
- JANTX1N6159AUS
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SQ-MELF
- Datasheet:
-
JANTX1N6159AUS.pdf
- Description:
- T MET BI 1500W SM
- Quantity:
- Payment:
- Shipping:
Inventory:7,592
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Product details
Overview
JANTX1N6159AUS from Microsemi (now Microchip) is a military-grade transient voltage suppression diode designed for high-reliability EOS/ESD protection of 22V DC power and signal lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 28V under 40A 8/20μs surge, maintains <600nA leakage at 22V, and operates from –55°C to +150°C in a hermetically sealed DO-213AB package.
For engineers reviewing the JANTX1N6159AUS datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, military screening details, thermal stability data, and direct alternatives for aerospace, defense, and ruggedized industrial power bus protection.
Technical Context
JANTX1N6159AUS is a unidirectional silicon avalanche diode optimized for fast-response overvoltage clamping on positive-rail systems. Its breakdown voltage is tightly specified at 25–27.9V (1mA test), with a low dynamic resistance of 20mΩ enabling stable 27.5–28V clamping across 24–40A surge currents and –55°C to +125°C ambient.
The device uses planar junction construction and glass-passivated chips inside a hermetic DO-213AB metal case, meeting MIL-PRF-19500/517 requirements for JANTX level screening including 100% lot testing, burn-in, and temperature cycling. It is not a FET-based suppressor - unlike TDS2211P - and relies solely on avalanche conduction without active trigger circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 22 V - maximum continuous DC operating voltage before leakage exceeds 130–600 nA |
| Breakdown Voltage (VBR) | 25–27.9 V @ 1 mA - precise avalanche onset threshold ensuring predictable turn-on during transients |
| Clamping Voltage (VC) | 27.5–28 V @ 40 A, 8/20 μs - limits peak stress on downstream 24V-rated ICs like USB PD controllers |
| Peak Pulse Power (PPK) | 1120 W @ 8/20 μs - supports single-event lightning-surge immunity per IEC 61000-4-5 Level 4 |
| ESD Withstand | ±30 kV contact & air - exceeds IEC 61000-4-2 Level 4, eliminating need for secondary ESD stages |
| Junction Capacitance (CJ) | 175 pF @ 22 V, 1 MHz - suitable for DC power rails and low-speed control lines, not high-speed data |
| Operating Temperature | –55°C to +150°C - qualified for extended-range military platforms including avionics and vehicle ECUs |
Pinout & Package
Hermetically sealed DO-213AB (MELF-style) glass-metal package, 4.5 mm diameter × 2.5 mm length, axial leads, no polarity marking - cathode identified by band on body per MIL-STD-883.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Connected to protected line ground reference | Low-inductance return path required; must be routed directly to system ground plane |
| Cathode | Connected to 22V+ supply or signal rail | Clamps positive transients to ground; reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic DO-213AB construction | Eliminates moisture ingress and long-term parameter drift in humid or vacuum environments |
| JANTX screening per MIL-PRF-19500/517 | Includes 100% lot acceptance testing, 168-hour burn-in, and thermal shock validation |
| Stable clamping across temperature | Clamping voltage variation <0.5 V from –55°C to +125°C enables fixed-margin system design |
| Low dynamic resistance (20 mΩ) | Minimizes voltage overshoot during fast-rising surges (<10 ns rise time) |
| High surge current rating (40 A) | Supports repeated exposure to IEC 61000-4-5 8/20 μs waveforms without degradation |
Applications
| Aerospace Power Distribution | Defense Vehicle ECUs |
|---|---|
Use Scenario: Protection of 22V DC distribution buses in satellite power management units exposed to launch-induced ESD and cosmic-ray-induced transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail feeding radiation-hardened FPGAs and ADCs. Use Value: Prevents latch-up or gate oxide rupture in downstream 24V-tolerant ASICs during ±30kV ESD events, validated per MIL-STD-461G CS114. |
Use Scenario: Input protection for engine control modules in tracked armored vehicles subjected to load-dump and alternator surge per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: First-line transient suppressor on 24V input stage ahead of DC-DC converters and CAN transceivers. Use Value: Maintains clamping below 28V across –55°C cold-start and +125°C under-hood conditions, avoiding brownout resets. |
| Industrial Motor Drives | Ruggedized IoT Gateways |
Use Scenario: Snubbing inductive kickback from 22V solenoid drivers in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Fast-turn-on avalanche clamp parallel to MOSFET drain-source, absorbing stored inductive energy. Use Value: Limits voltage spike to ≤28V during 40A turn-off events, preventing MOSFET avalanche failure and extending MTBF. |
Use Scenario: DC input protection for outdoor cellular gateways powered via PoE++ or 24V solar charge controllers. IC Role / Device Role / Timing Role: Front-end surge suppressor on primary DC input before buck regulator and LTE modem. Use Value: Survives repeated 1kV/42Ω surges (IEC 61000-4-5) without parametric shift, certified to MIL-STD-810H Method 516.7. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ22A | Commercial-grade SMC package; 22V VRWM, 35.5V VC @ 32.4A; no military screening | Lacks JANTX-level reliability testing and hermetic sealing; unsuitable for flight-critical systems | Select when cost and volume production outweigh mission-critical qualification needs |
| TPSMD22A | Automotive AEC-Q101 qualified; 22V VRWM, 35.2V VC @ 32.1A; surface-mount DFN | No hermetic seal or extended temperature range; optimized for automotive ECU mounting density | Prefer for space-constrained automotive infotainment or ADAS modules requiring AEC-Q101 compliance |
Compared with JANTX1N6159AUS, SMCJ22A offers lower cost but no hermeticity or military screening, while TPSMD22A provides automotive qualification and smaller footprint at the expense of extended temperature capability and long-term parameter stability in harsh environments.
Availability
JANTX1N6159AUS is available at Aetrix Electronics and suitable for aerospace power distribution, defense vehicle ECUs, and industrial motor drives requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTX1N6159AUS 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 (acquired by Microchip Technology in 2018) designs high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets, emphasizing radiation tolerance and extended temperature performance.
JANTX1N6159AUS belongs to Microchip's legacy MIL-PRF-19500/517 TVS diode family, engineered specifically for mission-critical overvoltage protection where hermetic sealing, JANTX screening, and guaranteed parametric stability under thermal stress are mandatory.
FAQ
What is the clamping voltage specification for JANTX1N6159AUS under full-rated surge current?
JANTX1N6159AUS clamps at 27.5–28 V when subjected to a 40 A, 8/20 μs surge waveform per IEC 61000-4-5. This value is guaranteed across its full operating temperature range (–55°C to +125°C) and reflects its low 20 mΩ dynamic resistance, making it suitable for protecting 24V-rated downstream components without margin erosion.
Does JANTX1N6159AUS meet MIL-PRF-19500 requirements?
Yes, JANTX1N6159AUS is fully compliant with MIL-PRF-19500/517 for JANTX-level screening, including 100% lot testing, 168-hour burn-in, thermal cycling (–65°C to +150°C), and hermeticity verification. It carries the official JAN prefix and is listed in the Qualified Products List (QPL) for transient suppressors.
How does JANTX1N6159AUS differ from commercial TVS diodes like SMAJ22A?
JANTX1N6159AUS differs from SMAJ22A in three key ways: it uses a hermetic DO-213AB metal-glass package instead of plastic, undergoes full JANTX military screening (not just JANS), and guarantees parametric stability from –55°C to +150°C - whereas SMAJ22A is rated only to +150°C junction and lacks environmental robustness or lot traceability.
Can JANTX1N6159AUS be used in bidirectional configurations?
No, JANTX1N6159AUS is a unidirectional device intended for positive-rail clamping only. Its cathode connects to the protected 22V+ line and anode to ground. For bidirectional protection, two JANTX1N6159AUS devices must be connected in series opposition, or a dedicated bidirectional part such as JANTX1N6159BWS should be selected.
What is the maximum leakage current of JANTX1N6159AUS at rated working voltage?
At its rated reverse stand-off voltage of 22 V and 25°C, JANTX1N6159AUS exhibits a maximum reverse leakage current of 600 nA. This value increases with temperature but remains below 1.2 μA at +125°C, ensuring minimal impact on low-power 22V sensor or control circuits.
JANTX1N6159AUS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- SQ-MELF
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 38.8V
- Voltage - Breakdown (Min):
- 48.5V
- Voltage - Clamping (Max) @ Ipp:
- 70.1V
- Current - Peak Pulse (10/1000µs):
- 21.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/516
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
JANTX1N6159AUS FAQ
1.How can I place an order for JANTX1N6159AUS through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6159AUS 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 JANTX1N6159AUS reliable?
The price and inventory of JANTX1N6159AUS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6159AUS is usually 5 days.
3.What payment methods are accepted for JANTX1N6159AUS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6159AUS transactions.
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4.How is shipping managed for JANTX1N6159AUS?
JANTX1N6159AUS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6159AUS 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 JANTX1N6159AUS?
For technical support, including JANTX1N6159AUS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6159AUS requirements.
6.How does Aetrix verify that JANTX1N6159AUS is sourced from the original manufacturer or authorized distributors?
All JANTX1N6159AUS 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 JANTX1N6159AUS meets industry standards.
7.What is the process for return or replacement of JANTX1N6159AUS?
All JANTX1N6159AUS units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6159AUS, 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 JANTX1N6159AUS part is unused and in its original packaging.
Return procedure for JANTX1N6159AUS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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