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    1. Home/
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    3. Discrete Semiconductors/
    4. Transistors/
    5. 1N5543/TR Microchip

    1N5543/TR [Microchip]

    1N5543/TR
    1N5543/TR

    Part No:

    1N5543/TR

    Category:

    Transistors

    Manufacturer:

    Microchip

    Description:

    Military and defense, aerospace, HI-Rel Discrete Voltage and Current Regulation

    Stock Status:

    Available for RFQ

    Pricing:

    Request Volume Pricing

    Quote Response:

    Within 24 Hours

    Shipping:

    In-stock parts ship in 1–2 business days

    Products Detail

    The 1N5518 thru 1N5546 series of 0.5 watt axial-leaded glass Zener Voltage Regulators provides a selection from 3.3 to 33 volts with tolerances ranging from plus/minus 1% to 20%. The standard tolerance is plus/minus 5% with the B suffix unless ordered otherwise. These axial-leaded glass DO-35 Zeners are also available with an internal metallurgical bond option. This type of bonded Zener package construction is also available in JAN, JANTX, and JANTXV military qualifications. Microchip also offers numerous other Zener products to meet higher and lower power applications.



  • JEDEC registered 1N5518 thru 1N5546.
  • Voltage tolerances of plus/minus 20%, 10%, 5%, 2%, and 1% available. See Note 1 on page 3.
  • Internal metallurgical bond option available with “-1” suffix.
  • JAN, JANTX, and JANTXV qualification per MIL-PRF-19500/437 available (requires metallurgical bond option as well as plus/minus 5% voltage tolerance or tighter with B-1, C-1 or D-1 suffix).
  • RoHS compliant versions available (commercial grade only).
  • Regulates voltage over a broad operating current and temperature range.
  • Guaranteed voltage regulation (∆VZ) from IZL to IZT.
  • Voltage selection from 3.3 to 33 V.
  • Flexible axial-lead mounting terminals.
  • Nonsensitive to ESD per MIL-STD-750 Method 1020.
  • Minimal capacitance (see Figure 3).
  • Inherently radiation hard as described in Microchip “MicroNote 050” which is available at Microchip.com.
  • Product FAQ

    1. Is 1N5543/TR available for RFQ?

    Yes. 1N5543/TR by Microchip is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

    2. Why is there no fixed price for 1N5543/TR?

    Pricing for 1N5543/TR can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

    3. What are the key specifications of 1N5543/TR?

    1N5543/TR is a Microchip Transistors with the specifications shown on this page. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for 1N5543/TR?

    Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

    5. How soon can 1N5543/TR be shipped?

    If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

    6. Can you suggest alternatives to 1N5543/TR?

    Yes. If 1N5543/TR is unavailable, obsolete, or does not meet your required lead time, we can help check similar Microchip Transistors parts or compatible alternatives.

    RFQ

    Part Number:

    1N5543/TR

    Manufacturer:

    Microchip

    Looking for Pricing? Contact us for volume pricing.

    IMPORTANT NOTICE

    Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

    Featured Product
    Shipping & Warranty

    Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

    Unishop Global Export: 1-7 days, $40.00

    Guaranteed Delivery: Door-to-door in 30 days

    Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

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      30-Day Guarantee
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