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    1. Home/
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    4. Development Tools/
    5. RDK-91 Power Integrations

    RDK-91 [Power Integrations]

    RDK-91
    RDK-91

    Part No:

    RDK-91

    Category:

    Development Tools

    Manufacturer:

    Power Integrations

    Description:

    Universal input, 12 V, 1 A flyback power supply using TinySwitch-III TNY278PG.

    Datasheet:

    Product FAQ

    1. Is RDK-91 available for RFQ?

    Yes. RDK-91 by Power Integrations 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 RDK-91?

    Pricing for RDK-91 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 RDK-91?

    RDK-91 is a Power Integrations Development Tools with No Load Input Power Without Bias: 0.15W and No Load Input Power With Bias: 0.05W. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for RDK-91?

    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 RDK-91 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 RDK-91?

    Yes. If RDK-91 is unavailable, obsolete, or does not meet your required lead time, we can help check similar Power Integrations Development Tools parts or compatible alternatives.

    RFQ

    Part Number:

    RDK-91

    Manufacturer:

    Power Integrations

    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
    Input Voltage
    85 VAC ~ 265 VAC
    Output Voltage
    12V
    Output Current
    1A
    Operating Temperature
    0°C ~ 50°C
    Creepage
    >3.2 mm
    Efficiency Average
    71.3%
    Efficiency Full Load
    75%
    Emi
    CISPR22B/EN55022B
    Input Frequency
    47Hz ~ 64Hz
    No Load Input Power With Bias
    0.05W
    No Load Input Power Without Bias
    0.15W
    Output Power
    12W
    Output Ripple Voltage
    100mV
    Output Voltage Tolerance
    ±8%
    Overvoltage Shutdown Max
    18V
    Overvoltage Shutdown Min
    15V
    Safety Class
    Class II
    Surge Common Mode
    2kV
    Surge Differential
    1kV
    Thermal Shutdown Accuracy
    ±5%

    Products Detail

    This reference design details a 12 W power supply with universal input (85-265 VAC) and 12 V, 1 A output. It utilizes the TinySwitch-III family IC (TNY278PG) and features EcoSmart energy efficiency, adjustable current limit via BP/M capacitor, output overvoltage protection, integrated safety/reliability functions, and meets multiple energy efficiency standards including CEC and Energy Star.

    Key Features

    • EcoSmart energy efficiency
    • No-load consumption 140 mW at 265 VAC without bias winding
    • >75% active-mode efficiency
    • Adjustable current limit
    • Output overvoltage protection (latched shutdown)
    • Integrated thermal shutdown (±5% accuracy)
    • Auto-restart for short-circuit/open loop
    • >3.2 mm creepage
    • Meets CISPR-22 Class B EMI
    • IEC61000-4-5 Class 3 surge

    Application scenarios

    • Reference design for power supplies
    • flyback topology

    Documents

    Datasheets:

    RDK-91TNY274-280RDK-91-Power-Integrations-datasheet-5437854.pdf
    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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