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Microchip Technology JANTXV1N5644A
- Part No.:
- JANTXV1N5644A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
JANTXV1N5644A.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:3,131
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Product details
Overview
JANTXV1N5644A from Microchip Technology (formerly Microsemi) is a hermetically sealed, unidirectional transient voltage suppressor (TVS) diode in DO-13 metal package, designed for high-reliability aerospace and military applications. It features 24.3 V minimum breakdown voltage (VBR), 25.6 V rated standoff voltage (VWM), and clamps transients to ≤41.4 V at 36 A peak pulse current (IPP), delivering 1500 W peak pulse power per 10/1000 µs waveform.
For engineers reviewing the JANTXV1N5644A datasheet, JANTXV1N5644A pinout, JANTXV1N5644A application, or JANTXV1N5644A equivalent, this part serves as a MIL-PRF-19500/500 qualified protection device for avionics power rails, legacy avionic interface lines, and high-radiation environments where hermetic sealing and radiation hardness are mandatory.
Technical Context
The JANTXV1N5644A operates as a unidirectional avalanche diode, entering controlled breakdown when reverse voltage exceeds its VBR threshold (24.3–27.0 V at 1 mA), clamping induced surges within <100 ps. Its DO-13 metal-glass package provides hermetic sealing and inherent radiation hardness per MicroNote 050, enabling operation from −55 °C to +175 °C.
It is rated for 1500 W non-repetitive peak pulse power (10/1000 µs), with thermal resistance of 50 °C/W junction-to-lead and 110 °C/W junction-to-ambient on FR4. Standby leakage is ≤5 µA at 25.6 V, and temperature coefficient of VBR is 0.097 %/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Rated Standoff) | 25.6 V - Maximum continuous reverse voltage before conduction; sets minimum system operating voltage margin. |
| VBR (Min/Max @ IBR) | 24.3 V / 27.0 V @ 1 mA - Tight tolerance ensures predictable turn-on across temperature and lot variation. |
| VC @ IPP | 41.4 V @ 36 A - Clamping voltage under full 1500 W surge; defines maximum stress on protected IC inputs. |
| IPP | 36 A - Peak current capability at 10/1000 µs; determines survivability against IEC61000-4-5 Class 4 secondary lightning (42 Ω source). |
| Leakage (ID @ VWM) | ≤5 µA - Ultra-low standby current avoids loading sensitive analog or low-power control circuits. |
| Package | DO-13 (DO-202AA) - Hermetically sealed metal-glass case with cathode connected to case; enables MIL-spec reliability and radiation tolerance. |
| TJ Range | −55 °C to +175 °C - Supports operation in extreme ambient conditions typical of engine bays and avionics bays. |
Pinout & Package
DO-13 (DO-202AA) hermetically sealed metal-glass package with axial leads; cathode terminal electrically bonded to metal case and marked by diode symbol on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Transient current return path | Connected to ground or low-impedance reference; must be routed with minimal inductance to preserve clamping speed. |
| Cathode (Lead 1 / Case) | Protected line connection | Electrically tied to metal case; mounted directly to chassis ground plane for lowest possible clamping impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic DO-13 metal package | Enables operation in vacuum, high-humidity, and corrosive environments without degradation; certified per MIL-PRF-19500/500. |
| 1500 W peak pulse power (10/1000 µs) | Withstands severe inductive switching transients and secondary lightning surges up to IEC61000-4-5 Class 4 (42 Ω source). |
| <100 ps response time | Clamps ESD events (IEC61000-4-2 ±15 kV contact) before downstream logic or analog circuitry sustains damage. |
| Inherent radiation hardness | Qualified per MicroNote 050; suitable for space-qualified and nuclear-hardened systems without additional shielding. |
| MIL-PRF-19500/500 JANTXV screening | Includes burn-in, temperature cycling, and parametric testing to ensure zero-defect performance in mission-critical platforms. |
Applications
| Aerospace Power Bus Protection | Avionics Interface Line Protection |
|---|---|
|
Use Scenario: Protecting 28 V DC aircraft power distribution bus from load dump and inductive kickback during relay switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed between bus rail and chassis ground to clamp transients above 25.6 V. Use Value: Limits bus overvoltage to ≤41.4 V, preventing damage to MIL-STD-704-compliant converters and motor controllers. |
Use Scenario: Shielding ARINC 429 receiver inputs from coupled RF and EFT bursts in flight control computers. IC Role / Device Role / Timing Role: Low-leakage (≤5 µA) TVS shunting transients to ground while preserving signal integrity at 100 kHz data rates. Use Value: Maintains bit error rate compliance under IEC61000-4-4 (4 kV EFT) without adding capacitance or signal distortion. |
| Military Vehicle Electronics | Radiation-Hardened Sensor Front-Ends |
|
Use Scenario: Safeguarding CAN and RS-485 transceivers in tracked vehicle command modules exposed to EMP and ignition noise. IC Role / Device Role / Timing Role: Primary surge suppression stage upstream of transient filtering networks and isolated data interfaces. Use Value: Survives 1500 W pulses without parameter shift, ensuring communication continuity after multiple surge events. |
Use Scenario: Protecting gamma-ray detector front-end amplifiers in nuclear instrumentation where radiation-induced leakage must be minimized. IC Role / Device Role / Timing Role: Radiation-tolerant clamping element with <0.1 %/°C VBR drift, maintaining stable threshold across wide temperature swings. Use Value: Eliminates need for periodic recalibration due to radiation-induced parameter drift in long-duration missions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N5643A | VWM = 21.8 V, VC = 37.5 V @ 40 A - lower clamping but reduced standoff margin. | Better suited for 24 V nominal systems with tighter voltage margins; less headroom for aging or ripple. | Select when system max operating voltage is ≤22 V and lower clamping voltage is prioritized over margin. |
| JANTXV1N5645A | VWM = 26.8 V, VC = 45.7 V @ 33 A - higher standoff, higher clamping, lower peak current. | Preferred for 28 V systems requiring extended overvoltage margin; trades peak surge capacity for robustness against sustained overvoltage. | Select when protecting circuits with >26 V absolute max ratings and where 33 A IPP suffices for threat profile. |
Compared with JANTXV1N5644A, JANTXV1N5643A offers lower clamping at the cost of reduced standoff safety margin, while JANTXV1N5645A increases standoff headroom but reduces surge current handling-making JANTXV1N5644A the balanced choice for 28 V avionics with Class 4 lightning requirements.
Availability
JANTXV1N5644A is available at Aetrix Electronics and suitable for aerospace power bus protection, avionics interface line hardening, and radiation-hardened sensor front-ends requiring stable component supply across extended production lifecycles and obsolescence-sensitive programs.
Supply support for JANTXV1N5644A 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 acquired Microsemi in 2018 and maintains full support for legacy high-reliability discrete products including the JANTXV series.
The JANTXV1N5644A belongs to Microchip's military-qualified TVS diode family, engineered specifically for aerospace, defense, and nuclear instrumentation applications demanding hermeticity, radiation tolerance, and MIL-PRF-19500/500 compliance.
FAQ
What is the maximum clamping voltage of JANTXV1N5644A under a 10/1000 µs surge?
The JANTXV1N5644A clamps to a maximum of 41.4 V when subjected to its rated 36 A peak pulse current (IPP) under the standard 10/1000 µs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuitry during transient events.
Is JANTXV1N5644A suitable for IEC61000-4-5 secondary lightning protection?
Yes, JANTXV1N5644A is validated for IEC61000-4-5 secondary lightning protection up to Class 4 with 42 Ω source impedance, as confirmed in the official datasheet (T4-LDS-0096 Rev. 3, Page 2). Its 1500 W rating and 41.4 V clamping enable compliance in avionics and military vehicle systems.
Does JANTXV1N5644A have radiation hardness certification?
Yes, JANTXV1N5644A exhibits inherent radiation hardness per Microsemi MicroNote 050, a documented qualification used in space and nuclear applications. This property stems from its hermetic DO-13 construction and silicon process, not requiring external hardening measures.
What is the polarity configuration and mounting requirement for JANTXV1N5644A?
JANTXV1N5644A is unidirectional with cathode (marked by diode symbol) connected to the metal case. For optimal performance, the case must be soldered directly to a low-inductance chassis ground plane; lead 2 (anode) connects to the protected line.
How does the JANTXV prefix differ from commercial-grade 1N5644A?
The JANTXV prefix indicates full MIL-PRF-19500/500 Level V screening-including extended temperature testing, burn-in, and lot acceptance testing-whereas 1N5644A is commercial-grade. JANTXV1N5644A guarantees zero defects and parametric stability across −55 °C to +175 °C for mission-critical use.
JANTXV1N5644A 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 36A
- 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)
JANTXV1N5644A FAQ
1.How can I place an order for JANTXV1N5644A through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N5644A 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 JANTXV1N5644A reliable?
The price and inventory of JANTXV1N5644A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N5644A is usually 5 days.
3.What payment methods are accepted for JANTXV1N5644A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N5644A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N5644A?
JANTXV1N5644A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N5644A 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 JANTXV1N5644A?
For technical support, including JANTXV1N5644A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N5644A requirements.
6.How does Aetrix verify that JANTXV1N5644A is sourced from the original manufacturer or authorized distributors?
All JANTXV1N5644A 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 JANTXV1N5644A meets industry standards.
7.What is the process for return or replacement of JANTXV1N5644A?
All JANTXV1N5644A units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N5644A, 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 JANTXV1N5644A part is unused and in its original packaging.
Return procedure for JANTXV1N5644A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N5644A Tags
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