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Microchip Technology JAN1N5639A
- Part No.:
- JAN1N5639A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
JAN1N5639A.pdf
- Description:
- TVS DIODE 15.3VWM 25.2VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:5,693
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Product details
Overview
JAN1N5639A from Microchip Technology is a hermetically sealed, unidirectional transient voltage suppressor (TVS) diode in DO-13 metal package, designed for high-reliability aerospace and military applications. It features 1500 W peak pulse power (10/1000 µs), 16.2–19.8 V breakdown voltage range (VBR), and clamps transients to ≤26.5 V at 56.5 A peak pulse current (IPP). It operates from –55°C to +175°C and is qualified per MIL-PRF-19500/500.
For engineers reviewing the JAN1N5639A datasheet, JAN1N5639A pinout, JAN1N5639A application, or JAN1N5639A equivalent, this device serves as a radiation-hardened, fast-response (sub-100 ps) protection solution for avionics power rails, IEC 61000-4-2/4-4/4-5 compliant systems, and inductive switching environments requiring hermetic reliability and tight tolerance standoff voltage (VWM = 14.5 V).
Technical Context
The JAN1N5639A functions as a unidirectional avalanche diode with cathode tied to the metal case, enabling low-inductance grounding and robust ESD/EFT suppression. Its DO-13 hermetic metal-glass construction ensures stable operation under extreme thermal cycling and radiation exposure per MicroNote 050.
It delivers 1500 W peak pulse power at 25°C lead temperature with <50°C/W junction-to-lead thermal resistance, supporting high-energy surge handling without derating until TL >125°C. Standby leakage remains ≤5 µA at VWM = 14.5 V, ensuring minimal system loading during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14.5 V - Rated standoff voltage; must be ≥ circuit's continuous DC operating voltage to avoid conduction during normal operation. |
| VBR @ IBR | 16.2–19.8 V @ 1 mA - Breakdown threshold range; defines minimum voltage at which avalanche clamping initiates under transient stress. |
| VC @ IPP | 26.5 V @ 56.5 A - Maximum clamped voltage during 10/1000 µs surge; determines worst-case overvoltage seen by protected ICs. |
| PPP | 1500 W - Peak pulse power rating; enables protection against high-energy transients like secondary lightning (IEC 61000-4-5, 42 Ω source). |
| TJ Range | –55°C to +175°C - Full military temperature range; supports operation in engine bays, avionics bays, and space-constrained high-temp zones. |
| αVBR | 0.088 %/°C - Temperature coefficient of breakdown voltage; ensures predictable VBR drift across operating temperature extremes. |
Pinout & Package
DO-13 (DO-202AA) hermetically sealed metal-glass package with axial leads; cathode connected directly to case (pin 1), anode as lead 2. Tin-lead plated external surfaces meet MIL-STD-750 Method 2026 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Case) | Transient return path | Low-inductance ground reference; requires direct mounting to chassis or low-impedance ground plane for optimal clamping performance. |
| Anode (Lead 2) | Protected line input | Connected to the circuit node requiring surge protection (e.g., 12 V rail, sensor input); reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic DO-13 metal package | Eliminates moisture ingress and long-term parameter drift; certified for 20+ year field life in sealed avionics enclosures. |
| Sub-100 ps response time | Clamps ESD events before sensitive logic or analog circuitry sustains damage; meets IEC 61000-4-2 Level 4 (15 kV air, 8 kV contact). |
| MIL-PRF-19500/500 qualification | Validated screening includes burn-in, temperature cycling, and hermeticity testing; required for DoD and NASA flight programs. |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per MicroNote 050; suitable for low-earth orbit and high-altitude aircraft systems. |
Applications
| Aerospace Power Distribution | Avionics Sensor Interface |
|---|---|
Use Scenario: Protection of 12–28 V DC bus lines in UAV flight controllers and satellite power management units against load dump and inductive kick. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between bus rail and ground, activated only during >14.5 V transients. Use Value: Limits bus overvoltage to ≤26.5 V during 1500 W surges, preventing latch-up or gate oxide rupture in downstream PMICs and FPGAs. |
Use Scenario: Shielding analog front-end inputs (e.g., RTD, thermocouple, pressure transducer) in cockpit instrumentation from EFT bursts and RF coupling. IC Role / Device Role / Timing Role: Fast-acting shunt element on signal line, grounded via shortest possible path to minimize loop inductance. Use Value: Sub-100 ps response prevents transient-induced offset errors or ADC saturation during IEC 61000-4-4 burst events (5 kHz, 2 kV). |
| Military Vehicle Electronics | Ground-Based Radar Systems |
Use Scenario: Surge protection on 24 V control lines in armored vehicle ECUs exposed to ignition noise, alternator transients, and EMP-like threats. IC Role / Device Role / Timing Role: Primary overvoltage clamp on CAN/LIN bus power rails and microcontroller supply pins. Use Value: Withstands 200 A forward surge (8.3 ms half-sine), surviving repeated automotive load-dump events without degradation. |
Use Scenario: Secondary lightning protection for RF receiver front-ends and low-noise amplifier bias supplies in S-band radar cabinets. IC Role / Device Role / Timing Role: Standoff-rated TVS on LNA VDD rail, selected for VWM = 14.5 V to match 12 V nominal supply with margin. Use Value: Clamps 42 Ω IEC 61000-4-5 Class 1 surges to <26.5 V, preserving LNA gain flatness and noise figure stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N5639A | Same electrical specs and DO-13 package; tighter screening per JANTXV level (enhanced temp cycling, 100% lot testing). | Required for Class H (space) or critical flight hardware where zero latent defects are mandated. | Select when full JANTXV traceability and extended reliability data are contractually required. |
| 1N5639A (commercial) | Identical VWM, VBR, VC, and package; lacks MIL-PRF-19500/500 screening and radiation assurance. | Suitable for ground-test equipment, non-flight prototypes, or cost-sensitive industrial controls. | Choose for lab validation or non-mission-critical systems where military qualification is not enforced. |
Compared with JAN1N5639A, JANTXV1N5639A adds higher-screening rigor for space-grade use, while 1N5639A offers identical electrical performance without military qualification-enabling trade-offs between reliability assurance, cost, and procurement lead time.
Availability
JAN1N5639A is available at Aetrix Electronics and suitable for aerospace power distribution, avionics sensor interface, and military vehicle electronics requiring stable component supply, full traceability, and long-term obsolescence management.
Supply support for JAN1N5639A 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 (formerly Microsemi) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for defense, aerospace, and industrial markets.
The JAN1N5639A belongs to Microchip's legacy military TVS diode family, engineered specifically for hermetic, high-temperature, and radiation-tolerant transient suppression in mission-critical electronic systems.
FAQ
What is the maximum clamping voltage of the JAN1N5639A under a 10/1000 µs surge?
The JAN1N5639A clamps to a maximum of 26.5 V when subjected to its rated peak pulse current of 56.5 A under a 10/1000 µs waveform. This value is measured at 25°C lead temperature and defines the upper voltage limit imposed on protected circuitry during transient events. The clamping voltage remains stable across the full military temperature range due to the device's low temperature coefficient (0.088 %/°C) and hermetic construction. Designers must ensure downstream components tolerate this 26.5 V peak.
Is the JAN1N5639A suitable for IEC 61000-4-5 secondary lightning protection?
Yes, the JAN1N5639A is explicitly rated for IEC 61000-4-5 secondary lightning protection with 42 Ω source impedance up to Class 1, and with 12 Ω source impedance up to Class 4. Its 1500 W peak pulse power and sub-100 ps response enable effective energy diversion for surges up to 56.5 A. The device's DO-13 metal package provides low thermal resistance (50°C/W junction-to-lead), sustaining multiple surge events without parametric shift-critical for field-deployed avionics and vehicle electronics.
How does the JAN1N5639A differ from commercial 1N5639A in terms of qualification and reliability?
The JAN1N5639A is fully qualified per MIL-PRF-19500/500, including rigorous screening for hermeticity, temperature cycling, and burn-in-ensuring suitability for military and aerospace applications. In contrast, the commercial 1N5639A shares identical electrical parameters and DO-13 packaging but lacks military-level screening and radiation assurance. Both parts exhibit the same VWM = 14.5 V, VBR = 16.2–19.8 V, and VC = 26.5 V, but only JAN1N5639A carries the documentation and test records required for DoD contracts.
What is the polarity configuration and mounting requirement for the JAN1N5639A?
The JAN1N5639A is a unidirectional TVS with cathode electrically connected to the metal case (pin 1), and anode as the isolated lead (pin 2). For optimal performance, the case must be soldered directly to a low-impedance ground plane or chassis to minimize inductance in the transient return path. Polarity is marked on the body with a diode symbol; incorrect orientation will prevent clamping. Mounting must maintain ≥0.375 inch (10 mm) lead length from the case to ensure thermal derating compliance per Figure 3 in the datasheet.
Does the JAN1N5639A require derating at elevated ambient temperatures?
Yes, the JAN1N5639A requires thermal derating above 125°C lead temperature. Its DC power dissipation is rated at 1 W only when TL ≤125°C; beyond that, linear derating applies per Figure 3. However, its peak pulse power rating (1500 W) remains valid up to TL = 25°C, and the device maintains full functionality across its full operating range (–55°C to +175°C ambient). For sustained high-temp environments, designers must verify PCB copper area, trace width, and airflow to keep TL within limits during both steady-state and surge conditions.
JAN1N5639A 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):
- 15.3V
- Voltage - Breakdown (Min):
- 17.1V
- Voltage - Clamping (Max) @ Ipp:
- 25.2V
- Current - Peak Pulse (10/1000µs):
- 59.5A
- 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)
JAN1N5639A FAQ
1.How can I place an order for JAN1N5639A through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N5639A 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 JAN1N5639A reliable?
The price and inventory of JAN1N5639A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N5639A is usually 5 days.
3.What payment methods are accepted for JAN1N5639A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N5639A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N5639A?
JAN1N5639A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N5639A 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 JAN1N5639A?
For technical support, including JAN1N5639A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N5639A requirements.
6.How does Aetrix verify that JAN1N5639A is sourced from the original manufacturer or authorized distributors?
All JAN1N5639A 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 JAN1N5639A meets industry standards.
7.What is the process for return or replacement of JAN1N5639A?
All JAN1N5639A units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N5639A, 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 JAN1N5639A part is unused and in its original packaging.
Return procedure for JAN1N5639A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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