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1W Zener Diodes 1N47 Series DO-41 Package - High Reliability from China Suppliers and Factory
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1W Zener Diodes 1N47 Series DO-41 Package - High Reliability from China Suppliers and Factory

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Feature

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Exceptional reliability, making it a top choice among China suppliers.

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Highly precise reverse characteristic for enhanced performance.

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Minimal reverse current levels ensure efficiency and longevity.

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VZ-tolerance of ±5% for consistent quality, ideal for bulk orders from our factory.

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    Contact us
    Product Details

    Function

    01

    Voltage Regulation

    Provides stable DC voltage for subsequent circuits, commonly used in linear voltage regulation, power supply voltage division and biasing, to suppress the impact of input voltage fluctuations on loads.

    02

    Reference Voltage Source

    Serves as a precision reference voltage for ADC/DAC calibration, sensor biasing, and instrument reference. It can replace part of reference ICs with low cost and low noise.

    03

    Overvoltage Protection and Clamping

    Breaks down reversely when the input/interface voltage exceeds VZ, clamping the voltage at VZ to protect sensitive components such as MCUs, op-amps, and MOSFETs from high voltage damage.

    04

    Signal Limiting and Shaping

    Limits the amplitude of analog signals to prevent overshoot from damaging subsequent stages, often used in audio frequency, sensor signal conditioning and interface protection.

    05

    Surge and ESD Suppression

    Absorbs transient energy quickly, suitable for communication interfaces, buttons, IO ports and other parts prone to electrostatic or surge impact.

    Product Specifications

    Product Specifications

    Product Dimension

    Product Dimension Drawing

    Installation Method

    ⚡
    Soldering Temperature: 350 ± 10°C
    ⏰
    Soldering Time: Still ≤ 3 seconds per joint

    Application

    ● Power management: linear voltage regulation, constant voltage for battery charging, feedback voltage division of switching power supplies.

    ● Industrial control: sensor power supply, IO port protection, peripheral voltage regulation of PLC/MCU.

    ● Consumer electronics: voltage regulation and protection of small home appliances, automotive electronic devices, communication modules.

    ● Testing and measurement: precision instrument reference, low-noise reference source.

    Why Choose Us?

    1 Precise Voltage Regulation and High Reliability
    Our 1W glass-enclosed zener diodes cover a full range of zener voltages from 3.3V to 100V. Adopting high-quality chips and glass encapsulation technology, they feature stable reverse breakdown characteristics, low dynamic resistance, and extremely small leakage current. In scenarios such as power supply voltage regulation, reference voltage, and overvoltage protection, they can effectively suppress voltage fluctuations, ensure long-term stable operation of circuits, and far exceed industry general standards.
    2 Excellent Environmental Adaptability
    The products have excellent temperature characteristics and anti-interference ability, which can adapt to different temperature environments such as industrial control, consumer electronics, and automotive equipment. At the same time, they have excellent ESD protection and transient surge absorption capabilities, providing reliable protection for sensitive circuits (MCU, op-amp, MOS tube).
    3 Full-Process Quality Inspection
    From chip selection, packaging and soldering to finished product testing, we have established a multi-level quality control process, including zener voltage accuracy testing, leakage current detection, temperature coefficient calibration, mechanical strength testing (bend resistance, high temperature resistance), etc. Each batch of products is accompanied by a test report to ensure a 100% factory qualification rate.
    4 Professional Soldering Adaptability
    In response to the soldering requirements of glass-enclosed devices, we have optimized the pin process and packaging materials. The products are compatible with various soldering methods such as wave soldering, manual soldering, and reflow soldering. They strictly follow the process specifications of ≤3 seconds per solder joint and 350°C soldering temperature, eliminating problems such as glass cracking, dry soldering, and pin oxidation, and greatly reducing the customer's soldering defect rate.
    5 Long-Term Stability Guarantee
    The products have passed reliability verification such as high-low temperature cycle and aging test, with no performance attenuation during long-term use, effectively reducing equipment repair rate and maintenance cost. They are especially suitable for industrial and automotive scenarios that have strict requirements on device life.

    FAQ

    For bulk orders, we usually deliver within 3–7 working days due to sufficient inventory. We also provide small-batch trial orders (minimum order quantity can be negotiated) to help you test product performance before mass production.
    All our 1W glass-enclosed zener diodes comply with RoHS. We can provide test reports for each batch according to your needs, ensuring compliance with domestic and foreign electronic manufacturing requirements.
    We have a fast-response after-sales team. If you find quality problems (such as unstable voltage regulation, packaging damage, or soldering defects), please contact us within 7 working days. We will provide solutions such as return, exchange, or batch rectification free of charge.
    We support customized packaging. The available forms include tape packaging (compatible with automatic placement machines), reel packaging, and bulk packaging. We can adjust the packaging according to your production line requirements to improve production efficiency.
    Our 1W glass-enclosed zener diodes cover a full voltage range from 3.3V to 100V, suitable for a wide variety of circuit design requirements including voltage regulation, reference voltage, and overvoltage protection applications.
    Yes. Our products have passed high-low temperature cycle and aging reliability tests, ensuring stable performance across demanding environments. They are well-suited for automotive electronics, industrial control systems, and other applications that require strict long-term device reliability.

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