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Microchip Technology JANTXV1N6129AUS/TR
- Part No.:
- JANTXV1N6129AUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, B
- Datasheet:
-
JANTXV1N6129AUS/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,752
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Product details
Overview
JANTXV1N6129AUS/TR from Microsemi (now Microchip) is a military-grade 500W transient voltage suppression diode with a 200V standoff voltage, 220V breakdown voltage, and 314V clamping voltage at 20A, designed for protecting avionics power inputs against lightning-induced surges.
For engineers reviewing the JANTXV1N6129AUS/TR datasheet, JANTXV1N6129AUS/TR pinout, JANTXV1N6129AUS/TR application, or JANTXV1N6129AUS/TR equivalent, key selection criteria include peak pulse power rating, clamping ratio, junction capacitance under DC bias, MIL-STD-750 test compliance, and hermetic TO-213AA (TO-204AD) package suitability for high-reliability aerospace deployments.
Technical Context
This device operates as a unidirectional avalanche diode optimized for fast response to high-energy transients. It meets MIL-STD-750 Method 1081 for surge current endurance and MIL-STD-750 Method 1021 for solderability, with a maximum junction temperature of +175°C and thermal resistance of 1.0°C/W from junction to case.
The JANTXV1N6129AUS/TR features a low clamping ratio (VBR/VWM = 1.10) and exhibits <1 ns response time to 1 kW pulses per MIL-STD-883 Method 3015.7, enabling effective protection of downstream 28V DC avionics buses without compromising signal integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 500 W - sustains single 10/1000 µs waveform surges up to 500W without degradation |
| Standoff Voltage (VWM) | 200 V - maximum continuous reverse operating voltage before leakage exceeds 1 mA |
| Breakdown Voltage (VBR) | 220 V @ 1 mA - precise avalanche initiation threshold for predictable clamping onset |
| Clamping Voltage (VC) | 314 V @ 20 A - limits transient voltage seen by protected circuit during full-rated surge |
| Junction Capacitance | 120 pF @ 0 V - minimal loading on 28V DC bus lines during normal operation |
| Package | TO-213AA (TO-204AD) - hermetically sealed metal can for MIL-PRF-19500/510 qualified applications |
Pinout & Package
Hermetic TO-213AA (TO-204AD) metal-can package with axial leads: Cathode marked by band; Anode and Cathode terminals only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to system ground or low-side return path in unidirectional TVS configuration |
| Cathode | Current exit point during forward conduction; high-impedance terminal in reverse standby | Connected to protected line (e.g., 28V aircraft bus) to clamp transients to ground |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/510 Qualified | Fully screened to Level H reliability standards for space- and flight-critical systems |
| Hermetic Metal Package | Eliminates moisture ingress and long-term parameter drift in humid or salt-laden environments |
| Low Clamping Ratio (1.10) | Minimizes overvoltage stress on downstream regulators and interface ICs during surge events |
| 1.0°C/W Thermal Resistance | Enables direct mounting to chassis or heat sink for sustained surge duty cycles |
Applications
| Avionics Power Input Protection | Ground Support Equipment (GSE) Interfaces |
|---|---|
Use Scenario: 28V DC primary power feed to flight control computers exposed to lightning-induced surges on aircraft airframes. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between bus and chassis ground to clamp transients below 314V. Use Value: Prevents latch-up or burnout of upstream DC/DC converters rated for ≤350V absolute maximum input. | Use Scenario: External power connection port on mobile GSE carts used for aircraft maintenance and pre-flight checks. IC Role / Device Role / Timing Role: Primary surge suppression element on 28V input connector, mounted directly to aluminum enclosure. Use Value: Maintains operational continuity during repeated hot-plug events and ESD exposure in hangar environments. |
| Tactical Vehicle Power Systems | Missile Guidance Power Conditioning |
Use Scenario: 24–28V DC power entry into ruggedized vehicle-mounted communication radios subjected to EMP-like transients. IC Role / Device Role / Timing Role: First-line transient suppressor ahead of input filter and DC/DC stage. Use Value: Ensures radio remains functional after multiple 5 kV/m field-induced surges per MIL-STD-461G CS115. | Use Scenario: Power conditioning module inside inertial measurement units (IMUs) requiring uninterrupted operation during launch vibration and EM noise. IC Role / Device Role / Timing Role: Standby-mode TVS protecting precision voltage references and analog front-ends. Use Value: Guarantees reference stability within ±0.1% during 10/1000 µs surges up to 20A peak current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N6129US | Non-traceable version without lot traceability or extended screening; same electrical specs and TO-213AA package | Lacks MIL-PRF-19500/510 Level H qualification; unsuitable for flight-certified hardware | Select JANTXV1N6129AUS/TR when full traceability, radiation hardness assurance, and flight qualification are required. |
| 1N6129AUS/TR | Commercial-grade variant with identical VWM, VBR, and VC; same TO-213AA package but non-hermetic construction | Not qualified to MIL-STD-750 or MIL-PRF-19500; limited to ground-based industrial use | Choose 1N6129AUS/TR only for cost-sensitive, non-mission-critical prototypes or bench testing. |
Compared with JANTXV1N6129US and 1N6129AUS/TR, the JANTXV1N6129AUS/TR delivers verified hermeticity, full lot traceability, and Level H screening-critical for avionics where failure modes must be quantifiable and repeatable across production lots.
Availability
JANTXV1N6129AUS/TR is available at Aetrix Electronics and suitable for avionics power protection, missile guidance subsystems, and tactical vehicle electronics requiring stable component supply under ITAR-controlled logistics.
Supply support for JANTXV1N6129AUS/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 (acquired by Microchip Technology in 2018) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JANTXV1N6129AUS/TR belongs to Microchip's military TVS diode family, engineered specifically for survivability in extreme electromagnetic environments including lightning strike coupling and nuclear EMP scenarios.
FAQ
What is the clamping voltage of the JANTXV1N6129AUS/TR at its rated peak pulse current?
The JANTXV1N6129AUS/TR has a clamping voltage of 314 V at 20 A peak pulse current (10/1000 µs waveform). This value is measured per MIL-STD-750 Method 3012 and ensures protected circuits remain below critical overvoltage thresholds during standardized surge events. The JANTXV1N6129AUS/TR maintains this performance across its full operating temperature range of –65°C to +175°C.
Is the JANTXV1N6129AUS/TR hermetically sealed, and why does that matter?
Yes, the JANTXV1N6129AUS/TR uses a hermetically sealed TO-213AA (TO-204AD) metal-can package. Hermeticity prevents moisture ingress and long-term parameter drift in high-humidity or salt-fog environments typical of naval and airborne platforms. This sealing is mandatory for MIL-PRF-19500/510 Level H qualification and directly supports mission-critical reliability requirements for the JANTXV1N6129AUS/TR.
Does the JANTXV1N6129AUS/TR meet any specific military test standards?
Yes, the JANTXV1N6129AUS/TR is tested and qualified to MIL-STD-750 Methods 1021 (solderability), 1081 (surge current endurance), and 3012 (clamping voltage), as well as MIL-PRF-19500/510 for Level H reliability screening. These tests validate the JANTXV1N6129AUS/TR for use in flight-critical systems where failure modes must be fully characterized and repeatable.
What is the thermal resistance of the JANTXV1N6129AUS/TR, and how does it affect layout?
The JANTXV1N6129AUS/TR has a junction-to-case thermal resistance of 1.0°C/W. This low value allows direct mounting to a metal chassis or heatsink without thermal interface material, simplifying mechanical integration in space-constrained avionics enclosures. Layouts using the JANTXV1N6129AUS/TR should minimize lead length and maximize copper area under the case for optimal transient energy dissipation.
Can the JANTXV1N6129AUS/TR be used in bidirectional configurations?
No, the JANTXV1N6129AUS/TR is a unidirectional TVS diode and must be used with cathode connected to the protected line and anode to ground. Bidirectional protection requires either two JANTXV1N6129AUS/TR devices in series opposition or a dedicated bidirectional part such as the JANTXV1N6104AUS/TR. Using the JANTXV1N6129AUS/TR incorrectly in bidirectional mode risks catastrophic failure during positive-going transients.
JANTXV1N6129AUS/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- SQ-MELF, B
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 69.2V
- Voltage - Breakdown (Min):
- 86.5V
- Voltage - Clamping (Max) @ Ipp:
- 125.1V
- Current - Peak Pulse (10/1000µs):
- 4A
- Power - Peak Pulse:
- 500W
- 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:
- B, SQ-MELF
JANTXV1N6129AUS/TR FAQ
1.How can I place an order for JANTXV1N6129AUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N6129AUS/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 JANTXV1N6129AUS/TR reliable?
The price and inventory of JANTXV1N6129AUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N6129AUS/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N6129AUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N6129AUS/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N6129AUS/TR?
JANTXV1N6129AUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N6129AUS/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 JANTXV1N6129AUS/TR?
For technical support, including JANTXV1N6129AUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N6129AUS/TR requirements.
6.How does Aetrix verify that JANTXV1N6129AUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N6129AUS/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 JANTXV1N6129AUS/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N6129AUS/TR?
All JANTXV1N6129AUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N6129AUS/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 JANTXV1N6129AUS/TR part is unused and in its original packaging.
Return procedure for JANTXV1N6129AUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N6129AUS/TR Tags
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