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Microchip Technology JANTXV1N5638A
- Part No.:
- JANTXV1N5638A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
JANTXV1N5638A.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:8,073
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Product details
Overview
JANTXV1N5638A from Microchip Technology is a hermetically sealed, unidirectional transient voltage suppressor (TVS) diode in DO-13 metal package, designed for high-reliability military avionics and aerospace systems. It features 13.6 V rated standoff voltage (VWM), 14.4–15.2 V breakdown voltage (V(BR)) at 1 mA, 22.5 V maximum clamping voltage (VC) at 67 A peak pulse current, and 1500 W peak pulse power rating per 10/1000 µs waveform.
For engineers reviewing the JANTXV1N5638A datasheet, JANTXV1N5638A pinout, JANTXV1N5638A application, or JANTXV1N5638A equivalent, key selection criteria include its MIL-PRF-19500/500 JANTXV qualification, <100 ps response time, -55°C to +175°C operating temperature range, and suitability for secondary lightning protection per IEC 61000-4-5 with 2 Ω, 12 Ω, and 42 Ω source impedances.
Technical Context
This device operates as a unidirectional avalanche clamp, entering breakdown when reverse voltage exceeds V(BR) and limiting transient energy by shunting surge current to ground. Its hermetic DO-13 metal-glass package ensures long-term reliability under thermal cycling and radiation exposure, with cathode tied directly to case for low-inductance grounding.
It delivers 1500 W peak pulse power handling at TL = 25°C with 0.01% duty cycle, supports forward surge current up to 200 A (8.3 ms half-sine), and exhibits a temperature coefficient of V(BR) of 0.086 %/°C - enabling stable clamping across wide ambient ranges in airborne electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.6 V - maximum continuous reverse operating voltage before conduction begins; selected to exceed system nominal rail (e.g., 12 V avionics bus) while avoiding false triggering. |
| V(BR) @ I(BR) | 14.4–15.2 V @ 1 mA - precise breakdown threshold ensuring predictable turn-on during transients; tighter tolerance than commercial-grade variants. |
| VC @ IPP | 22.5 V @ 67 A - clamping voltage under full 1500 W surge; limits downstream IC stress to safe levels during IEC 61000-4-5 Class 4 events. |
| PPP | 1500 W @ 10/1000 µs - peak pulse power capability enables robust protection against inductive switching spikes and induced RF transients. |
| Response Time | <100 ps - near-instantaneous avalanche response prevents voltage overshoot beyond protected circuit's absolute maximum ratings. |
| Operating Temp | -55°C to +175°C - qualified for extreme environments including engine-mounted sensors and flight control electronics. |
| Package | DO-13 (DO-202AA) - hermetically sealed metal-glass case with tin-lead plating, providing superior moisture resistance and radiation hardness vs. plastic packages. |
Pinout & Package
DO-13 (DO-202AA) hermetically sealed metal-glass package with axial leads; cathode terminal electrically connected to case and marked with diode symbol on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Transient current entry point | Connected to protected line (e.g., 12 V supply rail); carries full surge current during clamping event. |
| Cathode (Lead 1 / Case) | Clamp reference & return path | Internally bonded to metal case; must be soldered to low-impedance ground plane to minimize clamping voltage rise due to trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/500 JANTXV qualification | Meets stringent screening, testing, and traceability requirements for space- and defense-critical applications, including burn-in, temperature cycling, and lot acceptance tests. |
| Hermetic DO-13 metal package | Eliminates moisture ingress and outgassing risks in vacuum or high-humidity environments; certified inherently radiation-hard per MicroNote 050. |
| 1500 W peak pulse power | Handles high-energy transients from motor drives, relay coils, and lightning-induced surges without degradation over lifetime. |
| <100 ps response time | Clamps before sensitive CMOS inputs or analog front-ends experience destructive overvoltage - critical for protecting ADCs and microcontrollers. |
| IEC 61000-4-5 compliance support | Validated for secondary lightning protection up to Class 4 (42 Ω source) and Class 2 (2 Ω source), enabling use in DO-13-constrained legacy avionics designs. |
Applications
| Aerospace Power Bus Protection | Avionics ESD Hardening |
|---|---|
Use Scenario: Protecting 12 V DC distribution buses in UAV flight controllers from inductive kickback and RF coupling during actuator switching. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed at bus input to divert transients before reaching PMICs and FPGAs. Use Value: Maintains VWM margin above 12 V nominal while clamping to 22.5 V - preserving logic-level compatibility and preventing latch-up in downstream silicon. |
Use Scenario: Shielding MIL-STD-1553B data lines and ARINC 429 receivers from ESD events per IEC 61000-4-2 ±8 kV contact discharge. IC Role / Device Role / Timing Role: Fast-response transient suppressor mounted at connector interface to absorb ESD energy before signal integrity degrades. Use Value: Sub-100 ps response ensures clamping occurs within first nanosecond of ESD strike - eliminating bit errors and receiver resets. |
| Engine Control Unit (ECU) Sensor Inputs | Military Vehicle CAN Bus Nodes |
Use Scenario: Safeguarding thermocouple and pressure sensor analog inputs in jet engine monitoring systems exposed to ignition noise and vibration-induced transients. IC Role / Device Role / Timing Role: Low-leakage (5 µA @ VWM) TVS placed adjacent to op-amp input to prevent saturation without loading precision signal paths. Use Value: 5 µA standby current avoids measurement offset drift; hermetic seal prevents corrosion in high-temperature, oil-contaminated engine bays. |
Use Scenario: Protecting CANH/CANL nodes in armored vehicle communication networks subjected to load dump and EMP-like surges. IC Role / Device Role / Timing Role: Unidirectional clamp on each CAN line referenced to chassis ground, leveraging case-as-cathode for minimal loop inductance. Use Value: DO-13 case connection reduces ground path inductance by >50% vs. SMD alternatives - lowering VC by up to 15% during 10/1000 µs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5638A | Commercial-grade version; same VWM/V(BR)/VC specs but no MIL-PRF-19500/500 screening or radiation hardness validation. | Limited to non-mission-critical industrial or test equipment where cost sensitivity outweighs environmental ruggedness. | Select only if JANTXV qualification, extended temperature operation, or hermetic reliability are not required. |
| JANTXV1N5637A | Lower VWM (12.1 V), lower VC (21.2 V), and higher IPP (71 A); otherwise identical DO-13 package and JANTXV qualification. | Better suited for 10 V nominal rails or applications requiring tighter clamping headroom below 22 V absolute maximum ratings. | Choose when protecting 10 V logic or mixed-voltage systems where lower clamping voltage justifies reduced surge margin. |
Compared with JANTXV1N5638A, the 1N5638A lacks military screening and radiation assurance, while JANTXV1N5637A offers lower clamping voltage at the expense of reduced peak pulse current capacity - making JANTXV1N5638A optimal for 12 V avionics with balanced surge margin and voltage headroom.
Availability
JANTXV1N5638A is available at Aetrix Electronics and suitable for aerospace power bus protection, avionics ESD hardening, and engine control unit (ECU) sensor input protection requiring stable component supply across extended product lifecycles.
Supply support for JANTXV1N5638A 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 now manufactures high-reliability discrete semiconductors including radiation-hardened and military-qualified TVS diodes.
The JANTXV1N5638A belongs to Microchip's legacy Microsemi TVS family, engineered specifically for mission-critical aerospace, defense, and industrial systems demanding hermetic packaging, extreme temperature operation, and IEC 61000-4-5 compliance.
FAQ
What is the maximum clamping voltage of JANTXV1N5638A under a 1500 W transient?
The JANTXV1N5638A has a maximum clamping voltage (VC) of 22.5 V when subjected to its rated peak pulse current of 67 A - corresponding to the 1500 W 10/1000 µs waveform. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuits during worst-case surge events. The JANTXV1N5638A maintains this clamping performance across its full -55°C to +175°C operating range, with derating applied only for sustained thermal conditions.
Is JANTXV1N5638A suitable for bidirectional transient suppression?
No, JANTXV1N5638A is a unidirectional TVS diode optimized for DC-biased lines such as power rails and single-ended signal paths. Its cathode is internally connected to the metal case, and it conducts only in reverse breakdown. For bidirectional protection (e.g., AC lines or differential buses), Microchip offers separate DO-13 devices like the 1N6036–1N6072A series - which are explicitly designed for symmetrical clamping and share the same hermetic package.
Does JANTXV1N5638A require a heatsink for normal operation?
No, JANTXV1N5638A does not require a heatsink during transient suppression because it operates in avalanche mode only briefly - typically microseconds - and dissipates negligible average power. Its 1 W DC power dissipation rating applies only to continuous forward conduction, which is outside its intended use case. Thermal design focuses instead on minimizing lead-to-ground inductance; the DO-13 case serves as the primary heat sink during pulse events via conduction through the PCB copper.
How does the JANTXV1N5638A differ from commercial 1N5638A in terms of reliability testing?
The JANTXV1N5638A undergoes full MIL-PRF-19500/500 screening including temperature cycling (-55°C to +175°C), steady-state life testing, and lot acceptance tests per Method 5005, whereas the commercial 1N5638A receives only standard JEDEC qualification. This results in demonstrated failure-in-time (FIT) rates <10 FIT for JANTXV1N5638A in aerospace applications, versus no guaranteed FIT for the commercial variant. The JANTXV1N5638A also includes full traceability to wafer lot and assembly batch.
Can JANTXV1N5638A be used for IEC 61000-4-5 Class 4 lightning surge protection?
Yes, JANTXV1N5638A is validated for IEC 61000-4-5 secondary lightning protection up to Class 4 when tested with a 42 Ω source impedance - covering surge currents up to 67 A (10/1000 µs). Its 1500 W peak pulse rating and sub-100 ps response ensure reliable clamping without degradation. System-level compliance requires proper PCB layout: short traces, direct case-to-ground connection, and adequate copper area per Microchip's application guidance in AN-1001.
JANTXV1N5638A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- DO-202AA, DO-13, Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 67A
- 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)
JANTXV1N5638A FAQ
1.How can I place an order for JANTXV1N5638A through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N5638A 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 JANTXV1N5638A reliable?
The price and inventory of JANTXV1N5638A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N5638A is usually 5 days.
3.What payment methods are accepted for JANTXV1N5638A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N5638A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N5638A?
JANTXV1N5638A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N5638A 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 JANTXV1N5638A?
For technical support, including JANTXV1N5638A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N5638A requirements.
6.How does Aetrix verify that JANTXV1N5638A is sourced from the original manufacturer or authorized distributors?
All JANTXV1N5638A 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 JANTXV1N5638A meets industry standards.
7.What is the process for return or replacement of JANTXV1N5638A?
All JANTXV1N5638A units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N5638A, 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 JANTXV1N5638A part is unused and in its original packaging.
Return procedure for JANTXV1N5638A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N5638A Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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