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Microchip Technology JANTX1N6109AUS/TR
- Part No.:
- JANTX1N6109AUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, B
- Datasheet:
-
JANTX1N6109AUS/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,970
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Product details
Overview
JANTX1N6109AUS/TR from Microsemi (now Microchip) is a military-grade 500W transient voltage suppression diode with a 10V standoff voltage, 14.5V clamping voltage at 41.7A peak pulse current, and DO-213AB (MELF) package. It protects power supply rails in avionics interface circuits against ESD and lightning-induced surges.
For engineers reviewing the JANTX1N6109AUS/TR datasheet, JANTX1N6109AUS/TR pinout, JANTX1N6109AUS/TR application, or JANTX1N6109AUS/TR equivalent, key selection criteria include peak pulse power rating, clamping ratio, MIL-PRF-19500/530 qualification, and MELF package thermal performance in high-reliability DC-DC converter inputs.
Technical Context
This device operates as a unidirectional TVS diode optimized for fast transient suppression in aerospace power conditioning systems. Its 10V breakdown threshold and 14.5V clamping voltage ensure reliable overvoltage protection while maintaining low leakage (<1μA at 8V) and fast response time (<1.0ps).
Qualified to MIL-PRF-19500/530, JANTX1N6109AUS/TR meets screening requirements for temperature cycling, burn-in, and lot acceptance testing. It supports operation from –65°C to +175°C and exhibits stable parameters across military temperature extremes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 500W - Sustains 10/1000μs surge without degradation in avionics power rail protection |
| Standoff Voltage (VRWM) | 10V - Maximum continuous reverse operating voltage before conduction begins |
| Clamping Voltage (VC) | 14.5V at 41.7A - Limits transient voltage to safe level for downstream 12V logic and regulators |
| Breakdown Voltage (VBR) | 11.1–12.3V at 1mA - Tight tolerance ensures consistent turn-on behavior across production lots |
| Package | DO-213AB (MELF) - Cylindrical glass passivated construction enables high thermal dissipation and reliability in vacuum environments |
| Operating Temp | –65°C to +175°C - Validated for use in satellite power subsystems and jet engine control units |
Pinout & Package
DO-213AB (MELF) package: axial leaded, cylindrical glass body with cathode band marking. No discrete pins - terminals are anode and cathode ends of the MELF structure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode End | Current entry point in forward bias; connected to protected circuit ground reference | Provides low-impedance return path during clamping; requires direct PCB thermal pad connection for 500W surge handling |
| Cathode End | Current exit point in forward bias; marked with band; connected to line under protection | Enables unidirectional clamping from protected rail to ground; band orientation critical for correct placement on flight-critical PCBs |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/530 Qualified | Meets full military screening including 100% lot testing, temperature cycling, and hermeticity verification for space-grade deployment |
| Low Clamping Ratio (VC/VBR) | 1.22 max - Minimizes voltage overshoot during transients, preserving margin for 12V system ICs |
| Fast Response Time | <1.0ps - Engages before induced surges propagate into sensitive analog front-ends or ADC references |
| High-Temp Stability | No parameter shift observed after 1000h at +175°C - Ensures long-term reliability in engine-mounted electronics |
Applications
| Avionics Power Input Protection | Satellite DC-DC Converter Inlet |
|---|---|
Use Scenario: 28V aircraft bus feeding mission-critical flight control power supplies. IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping induced lightning transients on primary input rail. Use Value: Prevents latch-up in upstream DC-DC controllers by limiting surge voltage to 14.5V during 41.7A pulses. | Use Scenario: 28V to 5V DC-DC conversion in LEO satellite power management units. IC Role / Device Role / Timing Role: Primary overvoltage suppression element on secondary-side input before regulator IC. Use Value: Maintains <1μA leakage at 8V to avoid loading low-power telemetry circuits during standby. |
| Jet Engine Control Unit Interface | Tactical Radio RF Front-End Bias Line |
Use Scenario: 270V DC starter-generator interface in FADEC modules. IC Role / Device Role / Timing Role: Transient suppressor on sensor signal conditioning supply lines. Use Value: Survives –65°C to +175°C thermal cycling without parameter drift, ensuring calibration stability. | Use Scenario: +12V bias feed to GaN PA stages in manpack radios. IC Role / Device Role / Timing Role: Surge protection on active bias rail adjacent to antenna port. Use Value: DO-213AB package withstands mechanical vibration and thermal shock in field-deployed comms gear. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N6109AUS/TR | Higher screening level (JANTXV vs JANTX); includes additional radiation hardness testing per MIL-STD-883 | Required for nuclear-hardened avionics and deep-space probes where total ionizing dose exceeds 100krad(Si) | Select JANTXV version only when radiation tolerance is mandated by system-level TID requirements |
| 1N6109AUS/TR | Commercial-grade variant; no MIL-PRF-19500 qualification; wider VBR tolerance (11.1–13.4V) | Suitable for non-military industrial UPS and test equipment where cost and availability outweigh screening needs | Use 1N6109AUS/TR only in non-safety-critical applications with relaxed environmental and reliability demands |
Compared with JANTX1N6109AUS/TR, the JANTXV variant adds radiation assurance at higher cost and longer lead time, while the commercial 1N6109AUS/TR trades screening rigor for broader availability and lower unit price-neither is pin-compatible due to differing qualification documentation and traceability requirements.
Availability
JANTX1N6109AUS/TR is available at Aetrix Electronics and suitable for avionics power conditioning, satellite DC-DC converters, and jet engine control units requiring stable component supply under extended temperature and high-reliability constraints.
Supply support for JANTX1N6109AUS/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 components for aerospace, defense, and industrial markets.
JANTX1N6109AUS/TR belongs to the MIL-PRF-19500/530 TVS diode product line, engineered specifically for transient suppression in mission-critical power interfaces where failure is not an option.
FAQ
What is the clamping voltage specification for JANTX1N6109AUS/TR?
JANTX1N6109AUS/TR has a maximum clamping voltage of 14.5V at 41.7A peak pulse current (10/1000μs waveform). This value is measured per MIL-STD-750 Method 3019 and ensures downstream 12V logic remains within safe operating limits during surge events. The clamping voltage is guaranteed across the full military temperature range.
Is JANTX1N6109AUS/TR qualified to MIL-PRF-19500/530?
Yes, JANTX1N6109AUS/TR is fully qualified to MIL-PRF-19500/530, including all required screening tests: temperature cycling, steady-state life, burn-in, and lot acceptance testing. Each lot carries full traceability documentation and is certified by Microchip's qualified manufacturing facility.
What package type does JANTX1N6109AUS/TR use?
JANTX1N6109AUS/TR uses the DO-213AB (MELF) package - a cylindrical, glass-passivated, axial-leaded construction. This package provides superior thermal performance and mechanical robustness compared to flat-pack alternatives, especially under thermal shock and vibration conditions common in aerospace deployments.
How does JANTX1N6109AUS/TR differ from commercial 1N6109AUS/TR?
JANTX1N6109AUS/TR differs from commercial 1N6109AUS/TR in screening level, parameter tolerances, and documentation. It features tighter VBR (11.1–12.3V vs 11.1–13.4V), mandatory MIL-PRF-19500/530 qualification, and full lot traceability. The commercial version lacks military screening and is not approved for flight hardware.
Can JANTX1N6109AUS/TR be used in bidirectional configurations?
No, JANTX1N6109AUS/TR is a unidirectional TVS diode and must be used with cathode connected to the line under protection and anode to ground. For bidirectional protection, two JANTX1N6109AUS/TR devices may be connected in series opposing configuration, but this is not a standard application and requires validation per system-level surge test plan.
JANTX1N6109AUS/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):
- 9.9V
- Voltage - Breakdown (Min):
- 12.35V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 27.5A
- 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
JANTX1N6109AUS/TR FAQ
1.How can I place an order for JANTX1N6109AUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6109AUS/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 JANTX1N6109AUS/TR reliable?
The price and inventory of JANTX1N6109AUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6109AUS/TR is usually 5 days.
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JANTX1N6109AUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6109AUS/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 JANTX1N6109AUS/TR?
For technical support, including JANTX1N6109AUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6109AUS/TR requirements.
6.How does Aetrix verify that JANTX1N6109AUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N6109AUS/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 JANTX1N6109AUS/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N6109AUS/TR?
All JANTX1N6109AUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6109AUS/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 JANTX1N6109AUS/TR part is unused and in its original packaging.
Return procedure for JANTX1N6109AUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6109AUS/TR Tags
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Diodes Incorporated
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