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    1. Home/
    2. All Categories/
    3. Discrete Semiconductors/
    4. Transistors/
    5. CDLL5540B Microchip

    CDLL5540B [Microchip]

    CDLL5540B
    CDLL5540B

    Part No:

    CDLL5540B

    Category:

    Transistors

    Manufacturer:

    Microchip

    Description:

    The 1N5518BUR-1 thru 1N5546BUR-1 series of 0.5 watt glass surface mount Zener voltage regulators provides a selection from 3.3 to 33 volts with tolerances ranging from plus/minus 1% to 20%.

    RoHS Status:

    Product FAQ

    1. Is CDLL5540B available for RFQ?

    Yes. CDLL5540B 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 CDLL5540B?

    Pricing for CDLL5540B 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 CDLL5540B?

    CDLL5540B is a Microchip Transistors with Thermal Resistance Junction To Ambient: 300 oC/W and Thermal Resistance Junction To End Cap: 100 oC/W. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for CDLL5540B?

    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 CDLL5540B 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 CDLL5540B?

    Yes. If CDLL5540B 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:

    CDLL5540B

    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

    Stock Status:

    Available for RFQ

    Pricing:

    Request Volume Pricing

    Quote Response:

    Within 24 Hours

    Shipping:

    In-stock parts ship in 1–2 business days

    Specification

    Type
    Parameter
    Thermal Resistance Junction To Ambient
    300 oC/W
    Power Dissipation
    0.5W
    Forward Voltage
    1.1V
    Operating Temperature
    -65°C ~ +175°C
    Package
    DO-213AA MELF
    RoHS Status
    RoHS Compliant
    RoHS Status
    RoHS Compliant
    Weight
    0.04 g
    Reliability Level
    JAN, JANTX, JANTXV
    Solder Pad Temperature
    260 oC
    Thermal Impedance
    35 oC/W
    Thermal Resistance Junction To End Cap
    100 oC/W
    Tolerance
    ±1% ~ ±20%
    Zener Voltage
    3.3V ~ 33V

    Products Detail

    0.5 watt glass surface mount Zener voltage regulators with voltage tolerances from ±1% to ±20%. Features internal metallurgical bond and hermetically sealed DO-213AA MELF package. Available in JAN, JANTX, JANTXV military qualifications and RoHS compliant commercial versions. Regulates voltage over broad operating current and temperature ranges, with minimal capacitance and inherent radiation hardness.

    Key Features

    • JEDEC registered 1N5518 thru 1N5546. Voltage tolerances: ±20%, ±10%, ±5%, ±2%, ±1%. Internal metallurgical bond. JAN, JANTX, JANTXV qualification per MIL-PRF-19500/437. RoHS compliant versions available (commercial grade only). Hermetically sealed glass DO-213AA (SOD80 or MLL34) MELF package. Terminals: tin-lead or RoHS matte-Tin plating. Polarity: cathode band. Tape & reel option. Weight: 0.04 grams.

    Application scenarios

    • Voltage regulation
    • broad operating current and temperature range
    • ESD insensitive
    • radiation hard environments
    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.

    Feature

    • 30-Day Guarantee
      30-Day Guarantee
    • Fasted Delivery
      Fasted Delivery
    • Hassle-Free Returns
      Hassle-Free Returns
    • Secure payment method
      Secure payment method

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