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    1. Home/
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    3. Sensors/
    4. Optical Sensors/
    5. OP521DA TT Electronics

    OP521DA [TT Electronics]

    OP521DA
    OP521DA

    Part No:

    OP521DA

    Category:

    Optical Sensors

    Manufacturer:

    TT Electronics

    Description:

    NPN silicon photo Darlington phototransistors in miniature 1206 SMD packages with high sensitivity and fast response.

    RoHS Status:

    Product FAQ

    1. Is OP521DA available for RFQ?

    Yes. OP521DA by TT Electronics 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 OP521DA?

    Pricing for OP521DA 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 OP521DA?

    OP521DA is a TT Electronics Optical Sensors with Collector Emitter Saturation Voltage: 1.7V and Collector Emitter Breakdown Voltage: 35V. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for OP521DA?

    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 OP521DA 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 OP521DA?

    Yes. If OP521DA is unavailable, obsolete, or does not meet your required lead time, we can help check similar TT Electronics Optical Sensors parts or compatible alternatives.

    RFQ

    Part Number:

    OP521DA

    Manufacturer:

    TT Electronics

    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

    Datasheet:

    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
    Lead Soldering Temperature
    260°C
    Operating Temperature
    -25°C ~ +85°C
    Storage Temperature
    -40°C ~ +100°C
    RoHS Status
    RoHS Compliant
    Package
    1206 SMD
    RoHS Status
    RoHS Compliant
    Collector Current
    30mA
    Collector Emitter Breakdown Voltage
    35V
    Collector Emitter Dark Current
    200 nA
    Collector Emitter Saturation Voltage
    1.7V
    Collector Emitter Voltage
    35V
    Emitter Collector Breakdown Voltage
    5V
    OP520DA Spectral Range Max
    1100 nm
    OP520DA Spectral Range Min
    700 nm
    OP521DA Spectral Range Max
    1100 nm
    OP521DA Spectral Range Min
    400 nm
    On State Collector Current
    10.0mA
    Power Dissipation
    100mW
    Rise Fall Time
    50 µs

    Products Detail

    The OP520DA and OP521DA are NPN silicon photo Darlington phototransistors mounted in miniature 1206 SMD packages. They feature high photo sensitivity, fast response time, high current gain, and a flat lens available in opaque (OP520DA) or water clear (OP521DA) versions. The compact 1206 size chip carriers are compatible with automated mounting equipment and are mechanically and spectrally matched to OP250 series infrared LEDs. These devices provide a wide acceptance angle and are ideal for applications requiring high current gain in low light conditions.

    Key Features

    • High Photo Sensitivity
    • Fast Response Time
    • 1206 Package Size
    • Opaque or Water Clear Flat Lens
    • High Current Gain
    • Wide Acceptance Angle
    • Compatible with Automated Mounting
    • Spectrally Matched to OP250 Series IR LEDs

    Application scenarios

    • Non-Contact Position Sensing
    • Datum detection
    • Machine automation
    • Optical encoders

    Documents

    Datasheets:

    OP520DA,OP521DA
    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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