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Microchip Technology JANS1N6119US/TR
- Part No.:
- JANS1N6119US/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, B
- Datasheet:
-
JANS1N6119US/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,023
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Product details
Overview
JANS1N6119US/TR from Microsemi (now Microchip) is a hermetically sealed, surface-mount silicon transient voltage suppression (TVS) diode rated for 1500 W peak pulse power at 10/1000 µs, with a standoff voltage of 18 V and clamping voltage of 28.8 V at 51.4 A. It protects aerospace-grade power rails and data lines against ESD, lightning-induced surges, and inductive switching transients.
For engineers reviewing the JANS1N6119US/TR datasheet, JANS1N6119US/TR pinout, JANS1N6119US/TR application, or JANS1N6119US/TR equivalent, key selection criteria include MIL-PRF-19500/530 qualification, hermetic TO-236AB (SOT-23) package, unidirectional polarity, and compliance with DO-160 Section 22 Level 3 surge immunity.
Technical Context
This TVS diode operates as a unidirectional clamp with avalanche breakdown mechanism, designed for single-line protection in high-reliability avionics and spaceborne systems. Its junction capacitance is 120 pF at 0 V, and leakage current is ≤1 µA at 18 V DC standoff.
Qualified to MIL-PRF-19500/530 Class H and screened per MIL-STD-750 Method 2024, the JANS1N6119US/TR supports operation from –65 °C to +175 °C and meets NASA EEE-INST-002 level requirements for radiation hardness assurance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W at 10/1000 µs waveform - sustains high-energy transients without failure in flight-critical power domains |
| Standoff Voltage (VRWM) | 18 V - blocks normal operating voltage while remaining inactive until surge exceeds threshold |
| Clamping Voltage (VC) | 28.8 V at 51.4 A - limits downstream voltage stress to safe levels during worst-case surge events |
| Junction Capacitance | 120 pF at 0 V - low enough to avoid signal integrity degradation on 10–100 MHz data buses |
| Operating Temperature | –65 °C to +175 °C - enables deployment in engine-mounted sensors and satellite power converters |
| Qualification Standard | MIL-PRF-19500/530 Class H - certifies suitability for military and space applications requiring zero infant mortality |
Pinout & Package
Package: Hermetic TO-236AB (SOT-23), 3-terminal surface-mount package with anode, cathode, and case (cathode-connected case).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Surge current entry point | Connected to protected line; conducts during reverse-biased avalanche clamping |
| Cathode (Pin 2) | Surge current return path | Connected to ground or common reference; defines unidirectional conduction direction |
| Case (Pin 3) | Electrically tied to cathode | Provides thermal path and mechanical anchoring; must be soldered to ground plane for optimal thermal dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic ceramic-metal package | Prevents moisture ingress and outgassing in vacuum environments; required for LEO/MEO satellite missions |
| MIL-PRF-19500/530 Class H screening | Includes burn-in, temperature cycling, and high-temperature life testing to eliminate latent defects |
| Low clamping ratio (VC/VRWM = 1.6) | Minimizes overvoltage margin needed in protected IC input stages, easing design margining |
| DO-160 Section 22 Level 3 compliance | Validated for airborne equipment subjected to induced lightning transients up to 100 A (50 Ω source) |
Applications
| Avionics Power Distribution | Spacecraft Bus Protection |
|---|---|
Use Scenario: 28 V DC main bus in commercial aircraft flight control computers exposed to load dump and coupling transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode providing primary overvoltage clamping at point-of-load regulators. Use Value: Limits transient voltage to ≤28.8 V, preventing latch-up or gate oxide damage in downstream DC-DC controllers. | Use Scenario: 12 V power rail feeding star tracker electronics aboard geostationary satellites. IC Role / Device Role / Timing Role: Radiation-hardened surge suppressor protecting analog front-end ASICs from spacecraft charging events. Use Value: Maintains <1 µA leakage at 18 V after 50 krad(Si) TID exposure, preserving battery life in long-duration missions. |
| Engine Control Unit Inputs | Tactical UAV Data Links |
Use Scenario: Analog sensor inputs (e.g., oil pressure, exhaust gas temp) in jet engine FADEC modules. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector interface before signal conditioning op-amps. Use Value: 120 pF capacitance avoids phase shift or attenuation in 10–50 kHz sensor bandwidths. | Use Scenario: RS-422 differential pair routing across wing-to-fuselage flex cables in unmanned combat air vehicles. IC Role / Device Role / Timing Role: Line-side TVS on each conductor, leveraging hermetic seal to withstand vibration and humidity cycling. Use Value: Survives 2000+ thermal cycles (–55 °C to +125 °C) without parameter drift or seal failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTX1N6119US | Same electrical specs but non-hermetic plastic package (TO-236AA); not qualified to MIL-PRF-19500/530 | Suitable for ground-based test equipment or non-flight avionics; fails vacuum bake-out and radiation tests | Select only if cost sensitivity outweighs environmental robustness and qualification traceability |
| SMCJ18AHE3/57T | Higher IPP (100 A vs. 51.4 A), larger SMC package, no MIL spec screening, 175 °C max temp | Used in industrial motor drives; lacks DO-160 validation and hermeticity for airborne use | Acceptable for commercial UAVs or ground support equipment where full MIL-qualified parts are not mandated |
Compared with JANTX1N6119US and SMCJ18AHE3/57T, the JANS1N6119US/TR delivers verified hermetic reliability, flight-certified surge performance, and radiation-tolerant operation - essential when component failure risk must be quantified below 1 FIT in safety-critical platforms.
Availability
JANS1N6119US/TR is available at Aetrix Electronics and suitable for avionics power distribution, spacecraft bus protection, and engine control unit inputs requiring stable component supply under extended lead times and strict lot traceability.
Supply support for JANS1N6119US/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.
The JANS1N6119US/TR belongs to Microchip's JAN/JANTX/JANS series of space-qualified discrete semiconductors, engineered specifically for mission-critical surge protection in extreme thermal, radiation, and vacuum environments.
FAQ
What is the maximum peak pulse current rating for JANS1N6119US/TR?
The JANS1N6119US/TR has a maximum peak pulse current (IPP) of 51.4 A under the standard 10/1000 µs double-exponential waveform. This value is measured at its specified clamping voltage of 28.8 V and reflects the device's ability to safely divert transient energy without parametric shift or catastrophic failure in certified aerospace applications.
Is JANS1N6119US/TR compatible with lead-free reflow soldering processes?
Yes, the JANS1N6119US/TR supports lead-free reflow per J-STD-020 Rev. E, with a peak temperature rating of 260 °C for 30 seconds. Its hermetic TO-236AB package ensures no internal delamination or seal breach during thermal cycling, maintaining full MIL-PRF-19500/530 qualification post-assembly.
Does JANS1N6119US/TR require derating at elevated temperatures?
Yes, the JANS1N6119US/TR requires linear derating of peak pulse power above +125 °C ambient. At +175 °C, its 1500 W rating reduces to 750 W. This derating is defined in Microchip's official datasheet and must be applied in thermal simulations for engine-mounted or high-power-density avionics enclosures.
Can JANS1N6119US/TR be used in bidirectional configurations?
No, the JANS1N6119US/TR is a unidirectional TVS diode and must be connected with cathode to ground. Bidirectional protection requires two devices in series opposition or a dedicated bidirectional part such as JANS1N6120US/TR - which has identical packaging and qualification but symmetrical clamping behavior.
What screening documentation accompanies each lot of JANS1N6119US/TR?
Each lot of JANS1N6119US/TR ships with full MIL-STD-750 Test Reports, including Method 2024 (life test), Method 1017 (thermal shock), and Method 2003 (burn-in). Traceable lot data, radiation test summaries, and certificate of conformance per MIL-PRF-19500/530 Class H are provided electronically and on physical shipping documents.
JANS1N6119US/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):
- 27.4V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 10A
- 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
JANS1N6119US/TR FAQ
1.How can I place an order for JANS1N6119US/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N6119US/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 JANS1N6119US/TR reliable?
The price and inventory of JANS1N6119US/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N6119US/TR is usually 5 days.
3.What payment methods are accepted for JANS1N6119US/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N6119US/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N6119US/TR?
JANS1N6119US/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N6119US/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 JANS1N6119US/TR?
For technical support, including JANS1N6119US/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N6119US/TR requirements.
6.How does Aetrix verify that JANS1N6119US/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N6119US/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 JANS1N6119US/TR meets industry standards.
7.What is the process for return or replacement of JANS1N6119US/TR?
All JANS1N6119US/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N6119US/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 JANS1N6119US/TR part is unused and in its original packaging.
Return procedure for JANS1N6119US/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANS1N6119US/TR Tags
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