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Microchip Technology JAN1N5647A
- Part No.:
- JAN1N5647A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
JAN1N5647A.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:6,647
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Product details
Overview
JAN1N5647A 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 35.1 V minimum breakdown voltage (VBR), 31.6 V rated standoff voltage (VWM), and clamps transients to ≤56.4 V at 26.5 A peak pulse current (IPP) under 10/1000 µs waveform - enabling robust protection against IEC 61000-4-2 ESD, IEC 61000-4-4 EFT, and secondary lightning surges.
For engineers reviewing the JAN1N5647A datasheet, JAN1N5647A pinout, JAN1N5647A application, or JAN1N5647A equivalent, this device delivers verified 1500 W peak pulse power handling, sub-100 ps response time, and radiation-hardened operation across –55°C to +175°C - critical for flight-critical power rail and signal line protection where hermeticity and MIL-PRF-19500/500 compliance are mandatory.
Technical Context
The JAN1N5647A operates as a unidirectional avalanche diode, entering controlled breakdown when reverse voltage exceeds its 35.1–42.9 V VBR range at 1 mA test current. Its clamping action limits transient voltage to 56.4 V maximum at 26.5 A IPP, with thermal resistance of 50°C/W junction-to-lead - optimized for through-hole mounting with 10 mm lead length per MIL-STD-750.
It meets MIL-PRF-19500/500 Class JANTXV requirements, including hermetic DO-13 packaging, tin-lead plating, cathode-to-case polarity, and inherent radiation hardness per MicroNote 050. Standby leakage remains ≤5 µA at 31.6 V VWM, supporting low-power system monitoring without compromising protection integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Rated Standoff) | 31.6 V - Maximum continuous reverse voltage before leakage exceeds 5 µA; sets operating margin above 28 V nominal DC rails. |
| VBR (Min/Max @ 1 mA) | 35.1 V / 42.9 V - Avalanche onset range defining turn-on consistency; tighter tolerance than commercial 1N5647. |
| VC @ IPP | 56.4 V max at 26.5 A - Peak clamped voltage during 10/1000 µs surge; ensures downstream ICs see <60 V stress. |
| PPP (Peak Pulse Power) | 1500 W - Sustained energy absorption capability per JEDEC test condition; enables single-device protection for MIL-STD-1275B spikes. |
| Response Time | <100 ps - Near-instantaneous avalanche initiation; prevents nanosecond-scale ESD/EFT from reaching sensitive inputs. |
| Operating Temp Range | –55°C to +175°C - Full military temperature coverage; validated for engine bay, radar, and flight control electronics. |
| Package | DO-13 (DO-202AA) - Hermetically sealed metal-glass case with cathode connected to case; supports soldering at 260°C for 10 s. |
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. Case serves as cathode connection point.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Transient Current Entry Point | Connected to protected line; carries full surge current into avalanche junction during overvoltage events. |
| Cathode (Lead 1 / Case) | Clamp Reference & Return Path | Internally tied to metal case; must be connected to system ground plane or low-impedance return to ensure effective clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic DO-13 Metal Package | Prevents moisture ingress and outgassing in vacuum/high-altitude environments; qualified per MIL-PRF-19500/500. |
| 1500 W Peak Pulse Power | Handles repetitive 10/1000 µs surges up to 1500 W at TL = 25°C - sufficient for MIL-STD-461G CS115 and RTCA DO-160 Section 22 Level 3. |
| Sub-100 ps Response Time | Activates before ESD pulses (IEC 61000-4-2) propagate beyond PCB traces - eliminates need for additional RC filtering. |
| Radiation Hardness | Inherently radiation-tolerant per MicroNote 050 - suitable for space-qualified subsystems without derating. |
| MIL-PRF-19500/500 JANTXV Compliance | Includes screening for burn-in, temperature cycling, and hermeticity; traceable lot documentation for DoD procurement. |
Applications
| Aerospace Power Distribution | Avionics Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 28 V DC bus in aircraft electrical systems from load dump, inductive switching, and lightning-induced surges per RTCA DO-160 Section 22. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed across main power rail upstream of DC-DC converters and motor controllers. Use Value: Withstands 1500 W surges while maintaining VC ≤56.4 V - prevents latch-up or destruction of downstream PMICs and FPGAs. |
Use Scenario: Safeguarding ARINC 429 data lines and discrete sensor inputs in flight control computers against ESD and coupled RF transients. IC Role / Device Role / Timing Role: Low-leakage (≤5 µA) standoff diode mounted directly at connector entry points to minimize trace inductance. Use Value: Sub-100 ps response ensures clamping occurs before ESD pulse propagates >1 cm on PCB - preserves signal integrity and timing margins. |
| Military Vehicle Electronics | Satellite Power Conditioning |
|
Use Scenario: Shielding 24 V vehicle battery interfaces in armored ground vehicles from MIL-STD-1275B transients and EMP coupling. IC Role / Device Role / Timing Role: Primary surge suppression element on main power input, paired with fuse and filter inductors. Use Value: Hermetic DO-13 construction resists humidity, salt fog, and thermal shock - maintains reliability across –55°C to +175°C operational envelope. |
Use Scenario: Protecting solar array regulator inputs and battery charge controllers in LEO satellites exposed to single-event effects and total ionizing dose. IC Role / Device Role / Timing Role: Radiation-hardened transient suppressor integrated into power management ASIC interface circuits. Use Value: Inherent radiation tolerance per MicroNote 050 eliminates need for shielding or redundancy - reduces SWaP-C in constrained spacecraft bays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N5647 | Same VWM/VBR/VC specs but wider VBR tolerance (35.1–42.9 V vs. 37.1–40.9 V for JAN1N5647A); no "A" suffix tight-tolerance binning. | Acceptable for non-critical avionics where tighter VBR spread is not required; lower cost but reduced predictability in precision clamp designs. | Select JAN1N5647A when consistent clamping threshold is needed across production lots - e.g., for flight-certified hardware requiring traceable parametric limits. |
| SMCJ33A | Surface-mount SMC package; 33 V VWM, 53.3 V VC @ 28.3 A; same 1500 W rating but lacks hermeticity and MIL-PRF-19500 qualification. | Used in commercial industrial controls and telecom infrastructure; unsuitable for aerospace due to plastic encapsulation and non-radiation-hardened process. | Choose JAN1N5647A for mission-critical systems requiring hermetic sealing, radiation tolerance, and DoD traceability - not a drop-in replacement. |
Compared with JANTXV1N5647 and SMCJ33A, the JAN1N5647A provides tighter VBR tolerance and full MIL-PRF-19500/500 JANTXV qualification - making it the only option among the three that guarantees hermetic reliability, radiation hardness, and DoD-compliant lot traceability for flight hardware.
Availability
JAN1N5647A is available at Aetrix Electronics and suitable for aerospace power distribution, avionics signal line protection, and military vehicle electronics requiring stable component supply with full MIL-PRF-19500/500 compliance and radiation-hardened performance.
Supply support for JAN1N5647A 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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The JAN1N5647A belongs to Microchip's legacy Microsemi TVS diode family, engineered specifically for military-grade transient suppression in harsh-environment electronics where hermeticity, radiation tolerance, and extended temperature operation are non-negotiable.
FAQ
What is the standoff voltage (VWM) of the JAN1N5647A?
The JAN1N5647A has a rated standoff voltage (VWM) of 31.6 V - the maximum continuous reverse voltage at which leakage current remains ≤5 µA. This value ensures compatibility with 28 V DC systems while providing sufficient margin above nominal rail voltage to prevent false triggering during normal operation. The VWM is tightly specified as part of the "A" suffix military binning for the JAN1N5647A.
How does the JAN1N5647A differ from the commercial 1N5647A?
The JAN1N5647A is the JANTXV-qualified version of the 1N5647A, featuring full MIL-PRF-19500/500 screening including hermeticity testing, temperature cycling, and burn-in. It also carries tighter VBR limits (37.1–40.9 V vs. 35.1–42.9 V for 1N5647A) and traceable lot documentation required for DoD procurement. The JAN1N5647A is not interchangeable with commercial variants in certified aerospace designs.
What is the clamping voltage (VC) of the JAN1N5647A at its rated peak pulse current?
The JAN1N5647A clamps to a maximum of 56.4 V at its rated peak pulse current (IPP) of 26.5 A under the standard 10/1000 µs waveform. This VC value is guaranteed across the full military temperature range and forms the basis for downstream circuit protection design - ensuring connected ICs experience no more than 56.4 V during worst-case surge events.
Is the JAN1N5647A suitable for IEC 61000-4-2 ESD protection?
Yes, the JAN1N5647A is explicitly rated for ESD protection per IEC 61000-4-2 due to its sub-100 ps response time and ability to clamp fast-rising transients. Its 1500 W peak pulse power rating and low leakage (≤5 µA at 31.6 V) make it effective for protecting connectors and interface lines in avionics systems subjected to ±15 kV contact discharge - provided layout minimizes trace inductance to the device.
What package type does the JAN1N5647A use, and how is polarity marked?
The JAN1N5647A uses the DO-13 (DO-202AA) hermetically sealed metal-glass package. Polarity is marked by a diode symbol on the body, with Lead 1 (cathode) electrically connected to the metal case. This configuration requires the case to be soldered to a grounded copper pour or chassis ground to ensure proper clamping reference - a critical layout requirement confirmed in the official Microchip datasheet for JAN1N5647A.
JAN1N5647A 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):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 28A
- 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)
JAN1N5647A FAQ
1.How can I place an order for JAN1N5647A through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N5647A 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 JAN1N5647A reliable?
The price and inventory of JAN1N5647A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N5647A is usually 5 days.
3.What payment methods are accepted for JAN1N5647A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N5647A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N5647A?
JAN1N5647A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N5647A 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 JAN1N5647A?
For technical support, including JAN1N5647A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N5647A requirements.
6.How does Aetrix verify that JAN1N5647A is sourced from the original manufacturer or authorized distributors?
All JAN1N5647A 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 JAN1N5647A meets industry standards.
7.What is the process for return or replacement of JAN1N5647A?
All JAN1N5647A units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N5647A, 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 JAN1N5647A part is unused and in its original packaging.
Return procedure for JAN1N5647A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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