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Microchip Technology JANTX1N5661A
- Part No.:
- JANTX1N5661A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
JANTX1N5661A.pdf
- Description:
- TVS DIODE 128VWM 207VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:5,790
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Product details
Overview
JANTX1N5661A from Microchip Technology (formerly Microsemi) is a hermetically sealed, unidirectional transient voltage suppressor (TVS) diode in DO-13 metal package, designed for high-reliability military and aerospace applications. It features 121 V rated standoff voltage (VWM), 215 V maximum clamping voltage (VC) at 7.0 A peak pulse current (IPP), and 1500 W peak pulse power rating per 10/1000 µs waveform - used to protect avionics power rails and signal lines from secondary lightning surges per IEC61000-4-5.
For engineers reviewing the JANTX1N5661A datasheet, JANTX1N5661A pinout, JANTX1N5661A application, or JANTX1N5661A equivalent, key selection criteria include its MIL-PRF-19500/500 qualified JANTX-level screening, hermetic DO-13 package with cathode-to-case polarity, sub-100 ps response time, and radiation-hardened performance per MicroNote 050.
Technical Context
This device operates as a unidirectional avalanche diode, entering breakdown at minimum 135 V (V(BR) @ 1 mA) and clamping transients to ≤215 V while conducting up to 7.0 A peak pulse current. Its thermal resistance is 50°C/W junction-to-lead at 10 mm lead length, enabling robust surge handling in high-temperature environments up to +175°C operating range.
The JANTX1N5661A exhibits a temperature coefficient of breakdown voltage (αV(BR)) of 0.108 %/°C and maintains ≤5 µA standby leakage at 121 V VWM. Its fast response (<100 ps) and hermetic metal-glass construction make it suitable for mission-critical systems where plastic-packaged TVS devices are disqualified due to outgassing or moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 121 V - maximum continuous reverse operating voltage before conduction begins; sets minimum system rail protection threshold. |
| V(BR) min | 135 V @ 1 mA - guaranteed avalanche initiation voltage; ensures predictable turn-on during overvoltage events. |
| VC @ IPP | 215 V @ 7.0 A - clamped voltage under 10/1000 µs surge; defines worst-case voltage stress on downstream circuitry. |
| PPP | 1500 W - peak pulse power handling capability; supports high-energy transients in avionics and vehicle electronics. |
| Response time | <100 ps - enables effective suppression of ESD (IEC61000-4-2) and EFT (IEC61000-4-4) events. |
| Package | DO-13 (DO-202AA) - hermetically sealed metal-glass case with cathode connected to case; meets MIL-STD-750 solderability requirements. |
| Operating temp | –55°C to +175°C - supports deployment in extreme environments including engine bays and space-grade electronics. |
Pinout & Package
DO-13 (DO-202AA) hermetically sealed metal-glass package with axial leads; cathode terminal electrically bonded to case and marked by diode symbol on body. Lead finish: tin-lead per MIL-STD-750 Method 2026. Weight: 1.4 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Current entry point during forward conduction | Connected to internal silicon die anode; used only in forward-biased fault conditions or test setups. |
| Cathode (Lead 1 / Case) | Transient current return path | Electrically tied to metal case; must be connected to system ground or low-impedance return plane for effective clamping. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/500 JANTX qualification | Full military screening including burn-in, temperature cycling, and lot acceptance testing for reliability-critical programs. |
| Hermetic DO-13 metal package | Eliminates moisture ingress and outgassing risks; certified for vacuum and high-humidity aerospace deployments. |
| Radiation hardness | Inherently radiation-tolerant per MicroNote 050 - validated for total ionizing dose (TID) resilience in space applications. |
| Secondary lightning protection | Validated per IEC61000-4-5 with 42 Ω, 12 Ω, and 2 Ω source impedances up to Class 4 (JANTX1N5661A covers Classes 1–3 at 42 Ω). |
| ESD/EFT immunity | Clamps IEC61000-4-2 ±8 kV contact / ±15 kV air discharges and IEC61000-4-4 electrical fast transients without degradation. |
Applications
| Avionics Power Bus Protection | Ground Vehicle Control Module Input |
|---|---|
Use Scenario: Protecting 28 V DC power distribution networks in military aircraft against load dump and induced lightning surges. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp transients below 215 V. Use Value: Prevents latch-up or destruction of downstream DC-DC converters and microcontrollers during MIL-STD-461G CS115 pulses. |
Use Scenario: Safeguarding CAN bus interface inputs in armored vehicle control units exposed to ignition noise and alternator switching spikes. IC Role / Device Role / Timing Role: Standoff-rated TVS on signal line with cathode grounded, absorbing 1500 W surges within 100 ps. Use Value: Maintains signal integrity across 500 kbps CAN FD links during ISO 7637-2 Pulse 1/2a/5a events without data corruption. |
| Spacecraft Payload Sensor Interface | Tactical Radio Front-End Protection |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in LEO satellite payloads from single-event transients and TID-induced leakage. IC Role / Device Role / Timing Role: Low-leakage (≤5 µA @ 121 V) TVS mounted directly at connector entry point with short ground path. Use Value: Enables radiation-hardened operation without compromising sensor offset accuracy or long-term parametric stability. |
Use Scenario: Hardening RF front-end amplifier inputs in manpack radios against ESD from antenna handling and nearby lightning coupling. IC Role / Device Role / Timing Role: Fast-clamping unidirectional suppressor placed before low-noise amplifier input stage. Use Value: Limits RF amplifier input voltage to ≤215 V during ±15 kV IEC61000-4-2 discharge, preventing gate oxide damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N5661A | Higher screening level: JANTXV includes extended environmental testing (e.g., additional temperature cycling, hermeticity verification) per MIL-PRF-19500/500. | Required for Class H (spaceflight) and critical flight-safety systems where zero defect tolerance applies. | Select JANTXV1N5661A when full JANTXV qualification is mandated by program specification or failure mode analysis. |
| 1N5661A (commercial grade) | No military screening; not tested to MIL-PRF-19500/500; same electrical specs and DO-13 package but non-hermetic variant available. | Suitable for industrial or commercial avionics derivatives where cost and lead time outweigh absolute reliability requirements. | Choose 1N5661A only for non-mission-critical prototypes or ground-support equipment with relaxed qualification needs. |
Compared with JANTX1N5661A, JANTXV1N5661A adds verified hermeticity and extended life testing for space-grade assurance, while 1N5661A omits all military screening - making JANTX1N5661A the optimal balance of proven reliability, availability, and cost for defense avionics production.
Availability
JANTX1N5661A is available at Aetrix Electronics and suitable for avionics power protection, ground vehicle control modules, spacecraft sensor interfaces, and tactical radio front-end hardening requiring stable component supply across multi-year defense programs.
Supply support for JANTX1N5661A 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 its high-reliability analog and discrete product portfolio, including military-qualified TVS diodes and radiation-hardened components.
The JANTX1N5661A belongs to Microchip's legacy Microsemi TVS family engineered specifically for defense, aerospace, and industrial systems demanding hermetic packaging, MIL-PRF-19500 compliance, and verified transient suppression performance.
FAQ
What is the standoff voltage (VWM) of JANTX1N5661A and why does it matter?
The JANTX1N5661A has a rated standoff voltage (VWM) of 121 V, meaning it remains nonconductive below this reverse voltage level. This value ensures compatibility with 100 V nominal systems such as aircraft 270 V DC distribution buses operating at derated levels, preventing false triggering while maintaining margin above normal operating peaks. Exceeding VWM risks premature conduction and accelerated wear.
How does JANTX1N5661A differ from commercial 1N5661A in terms of qualification?
JANTX1N5661A undergoes full MIL-PRF-19500/500 screening including burn-in, temperature cycling, and lot acceptance tests per military standards, whereas 1N5661A lacks this qualification. The JANTX version also mandates hermetic DO-13 packaging and traceable lot documentation - essential for DoD contracts and FAA-certified avionics where failure history tracking is required.
Can JANTX1N5661A be used for bidirectional transient suppression?
No - JANTX1N5661A is strictly unidirectional. Its cathode is internally connected to the metal case, and it conducts only during reverse-biased overvoltage events. For bidirectional protection in the same DO-13 footprint, Microchip specifies the separate 1N6036–1N6072A series, which feature symmetrical breakdown characteristics and isolated case construction.
What is the maximum clamping voltage (VC) of JANTX1N5661A and how is it measured?
JANTX1N5661A has a maximum clamping voltage (VC) of 215 V at 7.0 A peak pulse current (IPP), measured under standardized 10/1000 µs exponential waveform per IEC61000-4-5. This value represents the highest voltage seen across the device during surge conduction and directly determines the protection level afforded to downstream ICs connected to the same node.
Is JANTX1N5661A suitable for space applications requiring radiation tolerance?
Yes - JANTX1N5661A is inherently radiation-hardened per MicroNote 050 and has demonstrated resilience to total ionizing dose (TID) effects common in low-Earth orbit missions. Its hermetic DO-13 package prevents moisture-related degradation in vacuum, and its specified –55°C to +175°C operating range supports thermal cycling in orbital environments.
JANTX1N5661A 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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 7.2A
- 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)
JANTX1N5661A FAQ
1.How can I place an order for JANTX1N5661A through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N5661A 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 JANTX1N5661A reliable?
The price and inventory of JANTX1N5661A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N5661A is usually 5 days.
3.What payment methods are accepted for JANTX1N5661A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N5661A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N5661A?
JANTX1N5661A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N5661A 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 JANTX1N5661A?
For technical support, including JANTX1N5661A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N5661A requirements.
6.How does Aetrix verify that JANTX1N5661A is sourced from the original manufacturer or authorized distributors?
All JANTX1N5661A 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 JANTX1N5661A meets industry standards.
7.What is the process for return or replacement of JANTX1N5661A?
All JANTX1N5661A units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N5661A, 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 JANTX1N5661A part is unused and in its original packaging.
Return procedure for JANTX1N5661A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N5661A Tags
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