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Microchip Technology JANTX1N5631A
- Part No.:
- JANTX1N5631A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
JANTX1N5631A.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:8,680
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Product details
Overview
JANTX1N5631A 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 7.38 V minimum breakdown voltage (VBR), 6.63 V rated standoff voltage (VWM), 12.5 V maximum clamping voltage (VC) at 120 A peak pulse current (IPP), and 1500 W peak pulse power rating per 10/1000 µs waveform.
For engineers reviewing the JANTX1N5631A datasheet, JANTX1N5631A pinout, JANTX1N5631A application, or JANTX1N5631A equivalent, this device serves as a MIL-PRF-19500/500 qualified protection component for inductive switching transients, ESD per IEC 61000-4-2, EFT per IEC 61000-4-4, and secondary lightning surges per IEC 61000-4-5 with 2–42 Ω source impedance.
Technical Context
The JANTX1N5631A operates as a unidirectional avalanche diode, entering controlled breakdown when reverse voltage exceeds its VWM of 6.63 V to clamp transients within nanoseconds. Its <100 ps response time ensures effective suppression of fast-rising ESD and EFT events before downstream circuitry sustains damage.
Rated for -55°C to +175°C operating temperature and hermetically sealed in DO-13 metal-glass construction, it delivers radiation hardness per MicroNote 050 and thermal resistance of 50°C/W junction-to-lead - enabling robust performance in airborne, space-constrained, and high-temperature embedded environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Rated Standoff Voltage) | 6.63 V - Maximum continuous reverse voltage applied without significant leakage; must exceed system operating voltage to avoid false triggering. |
| VBR (Breakdown Voltage @ 10 mA) | 7.38–9.02 V - Confirmed minimum/maximum avalanche onset range; defines threshold for transient clamping activation. |
| VC (Clamping Voltage @ 120 A) | 12.5 V - Peak voltage across device during 10/1000 µs surge; determines maximum stress imposed on protected ICs. |
| IPP (Peak Pulse Current) | 120 A - Maximum non-repetitive surge current the device safely handles without degradation under standard test conditions. |
| PPP (Peak Pulse Power) | 1500 W - Surge energy absorption capacity over 10/1000 µs waveform; enables protection against high-energy inductive spikes. |
| TJ Operating Range | -55°C to +175°C - Full military temperature range supported by hermetic DO-13 packaging and metallurgical design. |
| Response Time | <100 ps - Enables suppression of ESD events (IEC 61000-4-2) before propagation into sensitive analog or digital circuitry. |
Pinout & Package
Hermetically sealed DO-13 (DO-202AA) 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 clamping | Connected to protected line; carries full surge current into device during avalanche conduction. |
| Cathode (Lead 1 / Case) | Reference node and return path | Internally bonded to metal case; must be connected to system ground plane with low-inductance path for effective clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional TVS architecture | Enables precise clamping only on negative transients relative to ground, preserving signal integrity in DC-biased lines like power rails and sensor outputs. |
| MIL-PRF-19500/500 JANTX qualification | Guarantees screening, testing, and traceability per military reliability standards - required for aerospace and defense procurement. |
| Hermetic DO-13 metal-glass enclosure | Eliminates moisture ingress and long-term parameter drift; supports operation up to +175°C ambient without derating. |
| 1500 W peak pulse power (10/1000 µs) | Provides margin against high-energy inductive kickback from relays, solenoids, and motor drivers in harsh industrial environments. |
| ESD/EFT/secondary lightning compliance | Validated per IEC 61000-4-2 (±15 kV air/±8 kV contact), IEC 61000-4-4 (40 A/m²), and IEC 61000-4-5 (Class 1–4, 2–42 Ω ZS). |
Applications
| Aerospace Avionics Power Bus Protection | Industrial Motor Drive Control Signal Lines |
|---|---|
|
Use Scenario: Protecting 28 V DC power distribution buses in aircraft flight control computers from load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between bus rail and chassis ground to clamp surges below 12.5 V while maintaining >6.63 V nominal operation. Use Value: Prevents latch-up or burnout of downstream DC-DC converters and FPGAs during rapid polarity-reversal events in MIL-STD-704 compliant systems. |
Use Scenario: Shielding PWM feedback signals from brushless DC motor controllers against radiated RF coupling and commutation noise. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector interface to suppress sub-100 ps ESD strikes without distorting 100 kHz–1 MHz control timing. Use Value: Maintains closed-loop stability and prevents erroneous fault triggering in safety-critical motion control systems certified to IEC 61800-3. |
| Military Vehicle Data Link Interfaces | High-Temperature Engine Control Modules |
|
Use Scenario: Safeguarding RS-422/RS-485 differential data lines in armored vehicle communication nodes exposed to EMP and lightning-induced surges. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices on each line referenced to chassis ground, leveraging <100 ps response to limit overshoot during 1 kV/µs transients. Use Value: Ensures uninterrupted data transmission during MIL-STD-461G CS115 conducted surge tests without requiring additional filtering or signal delay. |
Use Scenario: Protecting analog sensor inputs (e.g., exhaust gas temperature, knock detection) in diesel engine ECUs operating continuously at 150°C under hood. IC Role / Device Role / Timing Role: DO-13-mounted TVS with 50°C/W junction-to-lead thermal resistance directly soldered to copper pour, dissipating residual leakage without derating. Use Value: Eliminates need for external heatsinking while sustaining VWM margin and clamping performance across full automotive temperature lifecycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTX1N5630A | Lower VWM (6.05 V) and VC (11.7 V); 128 A IPP | Better suited for 5 V logic rail protection where tighter clamping margin is critical | Select when system operating voltage is ≤6.0 V and lower clamping voltage is prioritized over higher surge margin. |
| JANTX1N5632A | Higher VWM (7.37 V) and VC (13.8 V); 109 A IPP | Preferred for 8–9 V intermediate bus protection with greater standoff margin | Choose when protecting circuits with nominal 7–8 V supply rails where false triggering risk outweighs peak current requirement. |
Compared with JANTX1N5631A, JANTX1N5630A offers tighter clamping at lower voltage but reduced surge handling, while JANTX1N5632A provides enhanced standoff margin at the cost of higher clamping voltage - making JANTX1N5631A the balanced selection for 6.6 V nominal systems requiring 120 A/1500 W capability.
Availability
JANTX1N5631A is available at Aetrix Electronics and suitable for aerospace avionics, industrial motor drives, and military vehicle electronics requiring stable component supply with full MIL-PRF-19500/500 traceability and extended temperature support.
Supply support for JANTX1N5631A 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-hardened components for aerospace, defense, and industrial markets.
The JANTX1N5631A belongs to Microchip's legacy military TVS diode family, engineered specifically for survivability in extreme electromagnetic environments - including airborne platforms, ground vehicles, and space-qualified subsystems.
FAQ
What is the maximum clamping voltage of the JANTX1N5631A under standard surge conditions?
The JANTX1N5631A exhibits a maximum clamping voltage (VC) of 12.5 V when subjected to a 10/1000 µs waveform with a peak pulse current (IPP) of 120 A. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring compatibility with 3.3 V, 5 V, and 12 V logic interfaces.
Does the JANTX1N5631A meet IEC 61000-4-5 secondary lightning protection requirements?
Yes, the JANTX1N5631A is validated for secondary lightning protection per IEC 61000-4-5 across multiple classes: Class 1 (42 Ω ZS), Class 2 (12 Ω ZS), and Class 3 (2 Ω ZS). Its 1500 W peak pulse power and sub-100 ps response enable reliable suppression of induced surges in avionics, vehicle electronics, and industrial control cabinets without requiring external impedance matching.
What is the standoff voltage rating of the JANTX1N5631A, and how does it relate to system design?
The JANTX1N5631A has a rated standoff voltage (VWM) of 6.63 V, meaning it remains nonconductive up to this reverse voltage level. System designers must ensure that the maximum continuous operating voltage on the protected line does not exceed VWM to prevent leakage current or premature breakdown - making it ideal for 6 V nominal power rails and sensor bias lines.
Is the JANTX1N5631A hermetically sealed, and why does that matter for reliability?
Yes, the JANTX1N5631A uses a hermetically sealed DO-13 metal-glass package, which eliminates moisture permeation and prevents long-term parameter shift due to environmental aging. This construction supports operation from -55°C to +175°C and ensures consistent clamping performance in high-humidity, high-vibration, or vacuum environments typical of aerospace and defense deployments.
How does the JANTX1N5631A differ from commercial-grade 1N5631A variants?
The JANTX1N5631A differs from commercial 1N5631A through full MIL-PRF-19500/500 qualification, including rigorous screening for temperature cycling, mechanical shock, vibration, and lot traceability. It also guarantees tighter parametric tolerances and radiation hardness per MicroNote 050 - essential for mission-critical systems where failure modes cannot be tolerated.
JANTX1N5631A 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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 124A
- 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)
JANTX1N5631A FAQ
1.How can I place an order for JANTX1N5631A through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N5631A 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 JANTX1N5631A reliable?
The price and inventory of JANTX1N5631A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N5631A is usually 5 days.
3.What payment methods are accepted for JANTX1N5631A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N5631A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N5631A?
JANTX1N5631A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N5631A 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 JANTX1N5631A?
For technical support, including JANTX1N5631A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N5631A requirements.
6.How does Aetrix verify that JANTX1N5631A is sourced from the original manufacturer or authorized distributors?
All JANTX1N5631A 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 JANTX1N5631A meets industry standards.
7.What is the process for return or replacement of JANTX1N5631A?
All JANTX1N5631A units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N5631A, 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 JANTX1N5631A part is unused and in its original packaging.
Return procedure for JANTX1N5631A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N5631A Tags
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