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Microchip Technology JAN1N5637A
- Part No.:
- JAN1N5637A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
JAN1N5637A.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:2,695
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Product details
Overview
JAN1N5637A from Microchip Technology (formerly Microsemi) is a hermetically sealed, unidirectional Transient Voltage Suppressor (TVS) diode in a DO-13 metal package, designed for high-reliability aerospace and military applications. It features a 12.1 V rated standoff voltage (VWM), 13.5 V minimum breakdown voltage (V(BR)), and clamps transients to ≤22.0 V at 68 A peak pulse current (IPP), delivering 1500 W peak pulse power for 10/1000 µs waveforms.
For engineers reviewing the JAN1N5637A datasheet, JAN1N5637A pinout, JAN1N5637A application, or JAN1N5637A equivalent, this device is selected for secondary lightning protection per IEC61000-4-5 (with 42 Ω, 12 Ω, or 2 Ω source impedance), ESD/EFT hardening per IEC61000-4-2/-4-4, and inductive switching transient suppression in avionics power rails and signal lines.
Technical Context
The JAN1N5637A operates as a unidirectional avalanche-clamping TVS diode with cathode tied to case, enabling low-inductance mounting directly to chassis ground. Its hermetic DO-13 package ensures stable performance across -55°C to +175°C operating temperature range and inherent radiation hardness per MicroNote 050.
It delivers sub-100 ps response time and 1500 W peak pulse power handling under JEDEC-standard 10/1000 µs surge conditions. The device is qualified to MIL-PRF-19500/500 as a JAN-level part, with tighter parametric tolerances than commercial 1N5637A variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 12.1 V - Maximum continuous reverse voltage before leakage exceeds 5 µA; sets minimum system operating voltage margin. |
| V(BR) min @ I(BR) | 13.5 V @ 1 mA - Guaranteed avalanche initiation threshold; defines lower bound of clamping onset. |
| VC @ IPP | 22.0 V @ 68 A - Maximum clamped voltage during 10/1000 µs surge; determines worst-case overvoltage seen by protected circuitry. |
| PPP | 1500 W - Peak pulse power rating for non-repetitive surges; enables robust protection against IEC61000-4-5 Class 4 events. |
| Response Time | <100 ps - Enables effective suppression of ESD (IEC61000-4-2) and fast EFT bursts (IEC61000-4-4). |
| Operating Temp | -55°C to +175°C - Supports deployment in engine-mounted avionics, downhole tools, and space-grade power interfaces. |
| Package | DO-13 (DO-202AA) - Hermetically sealed metal-glass case with cathode-to-case polarity; enables direct thermal sinking and EMI shielding. |
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; carries full surge current into avalanche junction during clamping. |
| Cathode (Lead 1 / Case) | Clamping reference and return path | Internally bonded to metal case; must be soldered to low-impedance ground plane or chassis for optimal ESD/lightning energy dissipation. |
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. |
| JAN-level military qualification | Complies with MIL-PRF-19500/500 for screening, testing, and traceability-required for DoD and NASA flight hardware BOMs. |
| 1500 W peak pulse power | Withstands IEC61000-4-5 4 kV/2 kA surge tests using 42 Ω source impedance (Class 1–4) without degradation. |
| Sub-100 ps response | Clamps ESD events before IC input structures experience damage-critical for unprotected RS-422/ARINC 429 receivers. |
| Radiation-hardened design | Inherently tolerant to total ionizing dose (TID) per MicroNote 050-validated for low-earth orbit (LEO) satellite power bus protection. |
Applications
| Avionics Power Bus Protection | Ground Vehicle Control Module Inputs |
|---|---|
Use Scenario: Protecting 28 V DC power distribution networks in airborne radar subsystems from load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between bus rail and chassis ground to shunt >1 kA transients within 100 ps. Use Value: Prevents latch-up and gate oxide rupture in downstream DC-DC converters and FET drivers during engine start-stop cycles. |
Use Scenario: Shielding CAN and LIN bus inputs in military vehicle ECUs from alternator ripple and ignition noise. IC Role / Device Role / Timing Role: Standoff-limited TVS on signal lines, leveraging 12.1 V VWM to avoid interference with 12 V nominal logic thresholds. Use Value: Maintains signal integrity during 10/1000 µs surges up to 1500 W while meeting MIL-STD-1275B transient immunity requirements. |
| Secondary Lightning Protection (IEC61000-4-5) | ESD Hardening for ARINC 429 Receivers |
Use Scenario: Front-end protection for aircraft environmental control system (ECS) sensors exposed to induced lightning currents via wiring harnesses. IC Role / Device Role / Timing Role: First-stage clamping device on analog sensor inputs, configured with 42 Ω source impedance per IEC61000-4-5 Class 1 test profile. Use Value: Limits induced surge voltage to ≤22.0 V, ensuring sensor front-end op-amps remain within absolute maximum ratings. |
Use Scenario: Input protection for ARINC 429 receiver ICs in flight management computers subjected to ±15 kV contact ESD per IEC61000-4-2. IC Role / Device Role / Timing Role: Fast-response unidirectional TVS placed directly at connector pins, with cathode grounded to shielded backplane. Use Value: Clamps ESD event within 100 ps to <22 V, preventing bit errors and receiver lockup without adding series resistance or signal delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N5637A | Higher screening level (JANTXV vs JAN); tighter V(BR) tolerance (±5% vs ±10%), extended temperature validation to +175°C. | Required for spaceflight and nuclear-hardened systems where burn-in and radiation testing are mandated. | Select JANTXV1N5637A when full MIL-PRF-19500/500 Class V screening and lot traceability are contractually required. |
| 1N5637A (commercial) | No military screening; wider V(BR) tolerance (±10%), not radiation-hardened; same electrical specs and DO-13 package. | Suitable for industrial controls and non-safety-critical automotive modules where cost and lead time outweigh qualification needs. | Choose 1N5637A only for prototyping or non-military production where JAN-level reliability and documentation are not required. |
Compared with JANTXV1N5637A, the JAN1N5637A offers reduced screening rigor but retains full MIL-PRF-19500/500 JAN qualification and radiation hardness-making it optimal for defense avionics where JANTXV overhead is unnecessary. Versus 1N5637A, it guarantees parametric stability and long-term supply continuity under military logistics frameworks.
Availability
JAN1N5637A is available at Aetrix Electronics and suitable for avionics power bus protection, ground vehicle control module inputs, secondary lightning protection per IEC61000-4-5, and ESD hardening for ARINC 429 receivers requiring stable component supply across extended product lifecycles.
Supply support for JAN1N5637A 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 portfolio, including legacy military-qualified components originally developed for aerospace and defense.
The JAN1N5637A belongs to Microchip's legacy TVS diode family engineered for extreme-environment transient suppression-specifically targeting avionics, missile guidance, and satellite power systems where hermeticity, radiation tolerance, and MIL-spec compliance are mandatory.
FAQ
What is the standoff voltage (VWM) specification for JAN1N5637A?
The JAN1N5637A has a rated standoff voltage (VWM) of 12.1 V, meaning it remains non-conductive up to this reverse voltage level while drawing ≤5 µA standby current. This value is critical for selecting compatible system operating voltages-e.g., it supports 12 V nominal buses with sufficient margin against ripple and transients without false triggering.
How does JAN1N5637A differ from commercial 1N5637A in terms of qualification?
The JAN1N5637A is fully qualified to MIL-PRF-19500/500 as a JAN-level part, including rigorous screening for temperature cycling, hermeticity, and lot traceability-unlike the commercial 1N5637A. Both share identical electrical parameters and DO-13 packaging, but only JAN1N5637A meets DoD procurement requirements for defense hardware BOMs.
Is JAN1N5637A suitable for IEC61000-4-5 secondary lightning protection?
Yes, JAN1N5637A is explicitly rated for IEC61000-4-5 secondary lightning protection across multiple classes: Class 1–4 with 42 Ω source impedance, Class 1–4 with 12 Ω, and Class 2–3 with 2 Ω. Its 1500 W peak pulse power and 22.0 V clamping voltage ensure compliance when deployed with appropriate series impedance and grounding.
What is the thermal resistance specification for JAN1N5637A?
JAN1N5637A has a thermal resistance of 50°C/W junction-to-lead (measured at 0.375 inches from body) and 110°C/W junction-to-ambient when mounted on FR4 with 4 mm² copper pads. This enables reliable operation at +175°C ambient if lead temperature is managed-key for engine bay or avionics bay installations.
Does JAN1N5637A have radiation hardness certification?
Yes, JAN1N5637A is inherently radiation-hardened per Microsemi MicroNote 050, validated for total ionizing dose (TID) tolerance in low-earth orbit environments. This makes it suitable for satellite power bus protection where single-event effects and cumulative dose could degrade plastic-packaged alternatives.
JAN1N5637A 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 71A
- 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)
JAN1N5637A FAQ
1.How can I place an order for JAN1N5637A through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N5637A 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 JAN1N5637A reliable?
The price and inventory of JAN1N5637A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N5637A is usually 5 days.
3.What payment methods are accepted for JAN1N5637A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N5637A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N5637A?
JAN1N5637A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N5637A 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 JAN1N5637A?
For technical support, including JAN1N5637A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N5637A requirements.
6.How does Aetrix verify that JAN1N5637A is sourced from the original manufacturer or authorized distributors?
All JAN1N5637A 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 JAN1N5637A meets industry standards.
7.What is the process for return or replacement of JAN1N5637A?
All JAN1N5637A units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N5637A, 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 JAN1N5637A part is unused and in its original packaging.
Return procedure for JAN1N5637A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N5637A Tags
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