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  1. Home
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  5. /JAN1N4978CUS
JAN1N4978CUS thumbnail 1
Microchip

JAN1N4978CUS

Category
Unclassified
Manufacturer
MicrochipDetails
Datasheet
Description
HI-Rel Discrete Voltage and Current Regulation
Similar Products
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Quality Control
Authentic & Traceable
Shipping (In-stock)
1-3 business days
Quote Response
Within 24 Hours
Stock Status9380
QuantityJAN1N4978CUS
Country

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Product Details
Documentation

This surface mount Zener Voltage Regulator series is military qualified to MIL-PRF-19500/356 and is ideal for high-reliability applications where a failure cannot be tolerated. These industry-recognized 5 Watt Zener Voltage Regulators are hermetically sealed with voidless-glass construction using an internal metallurgical bond. It includes Zener selections from 3.3 to 390 volts in standard 5% tolerances as well as tighter tolerances identified by different suffix letters on the part number. They are also available in axial-leaded packages for thru hole mounting by deleting the “US” suffix (see separate data sheet for 1N4954 thru 1N4996, 1N5968 thru 1N5969, and 1N6632 thru 1N6637). Microchip also offers numerous other Zener products to meet higher and lower power ratings in both thru-hole and surface mount packages.

  • Popular JEDEC registered series.
  • Voidless hermetically sealed glass package.
  • Triple-layer passivation.
  • Internal “Category I” Metallurgical bonds for 1N4954US thru 1N4996US, and “Category III” for 1N6632US thru 1N6637US as well as 1N5968US thru 1N5959US.
  • JAN, JANTX, JANTXV, and JANS available per MILPRF-19500/356.
  • Axial-leaded equivalents (see separate data sheet for 1N4954 thru 1N4996, 1N6632 thru 1N6637 and 1N5968 thru 1N5969).
  • Regulates voltage over a broad operating current and temperature range.
  • Extensive selection from 3.3 to 390V.
  • Standard voltage tolerances are plus/minus 5% with no suffix.
  • Tight tolerances available in plus or minus 2% or 1% with C or D suffix respectively.
  • Flexible axial-lead mounting terminals.
  • Nonsensitive to ESD per MIL-STD-750 method 1020.
  • Inherently radiation hard as described in Microchip Micronote 50.
  • Certified Quality & Compliance
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    YG GROUP (YUGUANG INTERNATIONAL(HK)CO.,LTD) supports reliable sourcing through quality controls and compliance documentation. Please confirm product requirements, applicable certifications and supporting documents before ordering.

    • 1. Certification Scope: Quality certifications apply only to the entities, sites and activities listed in valid certificates. Management system certification does not certify each individual product.
    • 2. Product Authenticity: Products must match the agreed manufacturer, part number and condition. Supplier screening and authenticity checks help reduce counterfeit risk.
    • 3. Inspection & Testing: The inspection scope follows product risks and agreed requirements. Additional testing, laboratory arrangements, costs and lead times require written confirmation.
    • 4. Traceability & Documentation: Request conformity certificates, traceability records or test reports before ordering. Document availability, issuer and coverage must be confirmed for the offered goods.
    • 5. Environmental Compliance: RoHS and REACH information is based on applicable manufacturer documentation. Confirm the exact part, declaration date and relevant exemptions before ordering.
    • 6. Handling & Protection: Handling, storage and packaging follow applicable product requirements, including ESD and moisture protection where required. Special handling requirements must be agreed before ordering.
    ERAI

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    Product FAQ
    Purchasing FAQ

    What type of component is JAN1N4978CUS, and what package does it use?

    JAN1N4978CUS is an authentic electronic component manufactured by Microchip, categorized under Unclassified. It is supplied in the standard manufacturer-specified package footprint, providing industry-standard mechanical dimensions and terminal configurations for board-level assembly. Full pinout configurations, physical footprint drawings, and rated operating tolerances are documented in the official JAN1N4978CUS datasheet above.

    Why is pricing for JAN1N4978CUS available via RFQ rather than a fixed checkout price?

    Electronic component spot-market pricing for JAN1N4978CUS fluctuates based on real-time global availability, production date codes, minimum order quantities (MOQ), and packaging formats (e.g., Reel, Tube, Tray). Using an RFQ ensures you receive accurate, real-time volume pricing tied to verified, traceable inventory rather than stale catalog estimates.

    How quickly can JAN1N4978CUS be shipped once quoted?

    Lead times for JAN1N4978CUS depend on whether stock is dispatched from our central hub or regional franchise partners. Ready-to-ship inventory typically leaves the warehouse within 1–3 business days following quality inspection, while factory-direct or back-ordered allocations are confirmed with an estimated ship date upon RFQ reply.

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