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Microchip Technology JANTX1N5657A
- Part No.:
- JANTX1N5657A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
JANTX1N5657A.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:7,451
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Product details
Overview
JANTX1N5657A from Microchip Technology is a hermetically sealed, unidirectional transient voltage suppressor (TVS) diode in DO-13 metal package, designed for high-reliability military avionics and industrial systems. It features 81.0 V rated standoff voltage (VWM), 90–110 V breakdown voltage (V(BR)), 144 A peak pulse current (IPP), and clamps transients to ≤144 V at 10/1000 µs waveform - enabling protection against secondary lightning surges per IEC61000-4-5 with 42 Ω source impedance (Class 1).
For engineers reviewing the JANTX1N5657A datasheet, JANTX1N5657A pinout, JANTX1N5657A application, or JANTX1N5657A equivalent, key selection criteria include its 1500 W peak pulse power rating, <100 ps response time, -55°C to +175°C operating temperature range, hermetic DO-13 package, and MIL-PRF-19500/500 JANTX qualification for aerospace-grade surge immunity.
Technical Context
The JANTX1N5657A operates as a unidirectional avalanche diode, entering controlled breakdown above its 81.0 V standoff voltage to clamp fast transients while maintaining low leakage (<5 µA at VWM). Its thermal resistance is 50°C/W junction-to-lead (0.375" from body), supporting robust power handling in high-temperature environments.
It complies with IEC61000-4-2 (ESD), IEC61000-4-4 (EFT), and IEC61000-4-5 (lightning surge) standards, with validated performance up to Class 1 secondary lightning (42 Ω source) and Class 2 (12 Ω source). Radiation hardness is inherent per Microsemi MicroNote 050.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Rated Standoff Voltage) | 81.0 V - Maximum continuous reverse voltage before conduction; ensures non-conductive operation during normal system operation. |
| V(BR) @ I(BR) | 90–110 V @ 1 mA - Breakdown voltage range defining the onset of avalanche clamping under transient stress. |
| VC @ IPP | 144 V @ 144 A - Maximum clamped voltage during 10/1000 µs surge; determines worst-case voltage seen by protected circuitry. |
| PPP (Peak Pulse Power) | 1500 W - Sustained transient energy absorption capability without failure under standardized surge conditions. |
| Response Time | <100 ps - Enables effective suppression of ESD, EFT, and fast-rising switching transients before downstream IC damage occurs. |
| Operating Temperature | -55°C to +175°C - Supports deployment in extreme environments including airborne avionics, engine control units, and downhole instrumentation. |
| Package | DO-13 (DO-202AA) - Hermetically sealed metal-glass case with cathode-connected case; enables high reliability and radiation tolerance. |
Pinout & Package
DO-13 (DO-202AA) hermetically sealed metal-glass package with axial leads; cathode terminal electrically connected to case and marked by diode symbol on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Transient current entry point during reverse-biased surge | Connected to protected line; carries full surge current into device during clamping event. |
| Cathode (Lead 1 / Case) | Transient current return path and reference node | Internally bonded to metal case; must be connected to system ground plane for effective low-inductance surge shunting. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional TVS architecture | Enables precise overvoltage clamping on DC-biased lines without interfering with forward signal integrity. |
| MIL-PRF-19500/500 JANTX qualification | Guarantees screening, testing, and traceability per military specification for use in defense and aerospace platforms. |
| Hermetic DO-13 metal package | Provides long-term reliability in humid, corrosive, or high-vacuum environments where plastic packages degrade. |
| 1500 W peak pulse power (10/1000 µs) | Delivers industry-leading surge energy handling in through-hole format for legacy and high-reliability designs. |
| Inherent radiation hardness | Validated per Microsemi MicroNote 050 - eliminates need for additional rad-hard qualification in space-qualified systems. |
Applications
| Airborne Avionics Power Bus Protection | Industrial Motor Drive Control Inputs |
|---|---|
Use Scenario: Protecting 28 V DC power distribution buses in aircraft flight control computers from induced RF and secondary lightning surges. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across bus rails to clamp transients before they reach sensitive FPGAs and ADCs. Use Value: Maintains system uptime by limiting rail voltage to ≤144 V during 144 A surges, satisfying DO-160 Section 22 Level 3 requirements. |
Use Scenario: Safeguarding isolated digital inputs on PLC modules exposed to inductive kickback from solenoid valves and contactors. IC Role / Device Role / Timing Role: Standoff-clamping protector on 24 V logic inputs, activated only during >81 V transients. Use Value: Prevents latch-up and permanent damage in microcontrollers by responding in <100 ps and absorbing 1500 W peak energy. |
| Military Vehicle Data Link Interfaces | Downhole Oil & Gas Sensor Signal Conditioning |
Use Scenario: Shielding RS-422/RS-485 data lines in armored vehicle C4I systems from ESD and EFT events per MIL-STD-461G CS114. IC Role / Device Role / Timing Role: Line-to-ground TVS on differential pairs, leveraging DO-13's low parasitic inductance for clean clamping. Use Value: Ensures uninterrupted serial communication during field-deployed operation with -55°C to +175°C thermal margin. |
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in high-temperature wellhead electronics subjected to switching transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 4–20 mA loop-powered sensor outputs. Use Value: Survives 175°C ambient with hermetic seal integrity, eliminating moisture-induced failure modes common in plastic TVS devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N5657A | Higher screening level (JANTXV vs JANTX); tighter V(BR) tolerance and extended temperature validation per MIL-PRF-19500/500. | Required for spaceflight and nuclear command systems where enhanced reliability and radiation assurance are mandated. | Select JANTXV1N5657A when full JANTXV qualification - including burn-in, life test, and lot acceptance - is contractually required. |
| 1N5657A (commercial grade) | No military screening; not tested to MIL-PRF-19500/500; same electrical specs but no traceability or environmental stress screening. | Suitable for non-critical industrial prototypes or cost-sensitive ground-based equipment without certification mandates. | Choose 1N5657A only for lab evaluation or commercial systems where JANTX-level reliability and documentation are unnecessary. |
Compared with JANTX1N5657A, JANTXV1N5657A adds rigorous process controls and extended testing for mission-critical deployments, while 1N5657A omits all military screening - making the JANTX variant the optimal balance of assured performance and procurement accessibility for defense contractors.
Availability
JANTX1N5657A is available at Aetrix Electronics and suitable for airborne avionics, military vehicle electronics, and downhole oil & gas instrumentation requiring stable component supply across extended product lifecycles and stringent qualification continuity.
Supply support for JANTX1N5657A 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
Microchip Technology (formerly Microsemi) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-tolerant components for aerospace, defense, and industrial markets.
The JANTX1N5657A belongs to Microchip's legacy TVS diode family engineered for military-grade transient immunity - emphasizing hermetic packaging, MIL-spec qualification, and performance under extreme thermal and radiation stress.
FAQ
What is the maximum clamping voltage of the JANTX1N5657A under a 10/1000 µs surge?
The JANTX1N5657A has a maximum clamping voltage (VC) of 144 V when subjected to its rated peak pulse current of 144 A under the 10/1000 µs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the JANTX1N5657A suitable for IEC61000-4-5 secondary lightning protection?
Yes, the JANTX1N5657A is validated for secondary lightning protection per IEC61000-4-5 with 42 Ω source impedance (Class 1) and 12 Ω source impedance (Class 2). Its 1500 W peak pulse power rating and sub-100 ps response enable reliable suppression of standardized surge waveforms without degradation, making it appropriate for avionics and vehicle electronics subject to induced lightning effects.
Does the JANTX1N5657A have radiation hardness certification?
Yes, the JANTX1N5657A exhibits inherent radiation hardness per Microsemi MicroNote 050. While not individually certified per MIL-STD-883 method 1019, its DO-13 hermetic metal-glass construction and silicon process provide proven resilience to total ionizing dose (TID) and single-event effects - a key reason it is selected for satellite power systems and nuclear instrumentation.
What is the standoff voltage (VWM) rating of the JANTX1N5657A, and why does it matter?
The JANTX1N5657A has a rated standoff voltage (VWM) of 81.0 V, meaning it remains non-conductive below this reverse voltage during normal operation. This parameter ensures minimal leakage current (<5 µA) and avoids interference with system functionality - selecting a VWM ≥ the maximum continuous operating voltage is essential to prevent false triggering while preserving surge margin.
How is the cathode terminal identified and used in the JANTX1N5657A DO-13 package?
In the JANTX1N5657A's DO-13 package, the cathode is electrically connected to the metal case and marked by a diode symbol on the body; Lead 1 serves as the cathode terminal. For proper operation, the cathode must be tied directly to a low-impedance system ground plane to ensure low-inductance surge current return - incorrect grounding compromises clamping performance and risks device failure.
JANTX1N5657A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- DO-202AA, DO-13, Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 11A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/500
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-13 (DO-202AA)
JANTX1N5657A FAQ
1.How can I place an order for JANTX1N5657A through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N5657A 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 JANTX1N5657A reliable?
The price and inventory of JANTX1N5657A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N5657A is usually 5 days.
3.What payment methods are accepted for JANTX1N5657A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N5657A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N5657A?
JANTX1N5657A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N5657A 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 JANTX1N5657A?
For technical support, including JANTX1N5657A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N5657A requirements.
6.How does Aetrix verify that JANTX1N5657A is sourced from the original manufacturer or authorized distributors?
All JANTX1N5657A 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 JANTX1N5657A meets industry standards.
7.What is the process for return or replacement of JANTX1N5657A?
All JANTX1N5657A units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N5657A, 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 JANTX1N5657A part is unused and in its original packaging.
Return procedure for JANTX1N5657A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N5657A Tags
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