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    1. Home/
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    3. Discrete Semiconductors/
    4. Diodes & Rectifiers/
    5. 1N991A Microchip

    1N991A [Microchip]

    1N991A
    1N991A

    Part No:

    1N991A

    Category:

    Diodes & Rectifiers

    Manufacturer:

    Microchip

    Description:

    The popular 1N957B-1 through 1N992B-1 series of 0.5 watt Zener voltage regulators provides a selection from 6.8 to 200 volts in a standard 5%, 2% and 1% tolerance versions. These axial-leaded glass DO-35 Zeners feature an internal metallurgical bond and are available in military qualified and commercial RoHS compliant versions.

    RoHS Status:

    Product FAQ

    1. Is 1N991A available for RFQ?

    Yes. 1N991A 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 1N991A?

    Pricing for 1N991A 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 1N991A?

    1N991A is a Microchip Diodes & Rectifiers with Thermal Resistance Junction To Ambient: 300°C/W and Thermal Resistance Junction To Lead: 250°C/W. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for 1N991A?

    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 1N991A 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 1N991A?

    Yes. If 1N991A is unavailable, obsolete, or does not meet your required lead time, we can help check similar Microchip Diodes & Rectifiers parts or compatible alternatives.

    RFQ

    Part Number:

    1N991A

    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
    Forward Voltage 1N957 To 1N985
    1.1V
    Forward Voltage 1N986 To 1N992
    1.3V
    Operating Temperature
    -65°C ~ +175°C
    Package
    DO-35 (DO-204AH), DO-213AA (MELF surface mount)
    Power Dissipation TA55C
    0.4W
    Power Dissipation TL50C
    0.5W
    Qualification
    JAN, JANTX, JANTXV (for 1N962B-1 to 1N992B-1), Commercial (for 1N957B-1 to 1N961B-1)
    RoHS Status
    RoHS Compliant
    RoHS Status
    RoHS Compliant
    Solder Temperature
    260°C
    Thermal Resistance Junction To Ambient
    300°C/W
    Thermal Resistance Junction To Lead
    250°C/W
    Weight
    0.2 g

    Products Detail

    0.5 watt Zener voltage regulators with internal metallurgical bond, available in military qualified (JAN, JANTX, JANTXV) and commercial RoHS compliant versions. Features include voltage regulation over a broad operating current and temperature range, extensive voltage selection (6.8 to 200 V), standard voltage tolerance ±5% with optional ±2% or 1%, flexible axial-lead mounting, non-sensitive to ESD, minimal capacitance, and inherent radiation hardness.

    Key Features

    • JEDEC registered 1N957B to 1N992B number series
    • Internal metallurgical bond
    • JAN, JANTX, and JANTXV qualifications available per MIL-PRF-19500/117 for part numbers 1N962B-1 thru 1N992B-1
    • Upscreening available for 1N957B-1 through 1N961B-1
    • RoHS compliant versions available (commercial grade only)
    • Regulates voltage over a broad operating current and temperature range
    • Extensive selection from 6.8 to 200 V
    • Standard voltage tolerance ±5% with optional ±2% or 1%
    • Flexible axial-lead mounting terminals
    • Non-sensitive to ESD per MIL-STD-750 method 1020
    • Minimal capacitance
    • Inherently radiation hard

    Application scenarios

    • Voltage regulation
    • over a broad operating current and temperature range
    • with extensive voltage selection and flexible mounting.
    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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