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RICHTEK IC RT7781GGS
21 inquiries last 6 mos.
US $ 1 .32 / ea
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Quantity
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100% Original
Genuine OEM Parts
Fast Delivery
Shipped via FedEx / DHL / UPS
12-Month Warranty
Worry-Free Coverage
Secure Packaging
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The RICHTEK IC is high quality!
PowerZeroTM Technology
Integrated 700V Start-Up Device
Brown-In and Brown-Out
Low No-Load Input Power (<50mW) (RT7781G/L/A/C)
Low No-Load Input Power (<30mW) (RT7781T)
Accurate Over Load Protection
Driver Capability : 400mA/−400mA
PRO Pin for Arbitrary External Protection(RT7781G/L/A/T)
ACD Pin for TV Application (RT7781C)
Disable Mode for 30mW Solution (RT7781T)
Jittering Frequency
Soft Driving for Reducing EMI Noise
VDD Over Voltage Protection
Internal Over Temperature Protection
Secondary Rectifier Short Protection
CS Pin Open Protection
RoHS Compliant and Halogen Free
Simplified Application Circuit
Applications
NB Adaptor
Switching AC/DC Adaptor with Low No-Load Input Power
TV and Monitor Applications
Open Frame Power Supply
Integrated 700V Start-Up Device
Brown-In and Brown-Out
Low No-Load Input Power (<50mW) (RT7781G/L/A/C)
Low No-Load Input Power (<30mW) (RT7781T)
Accurate Over Load Protection
Driver Capability : 400mA/−400mA
PRO Pin for Arbitrary External Protection(RT7781G/L/A/T)
ACD Pin for TV Application (RT7781C)
Disable Mode for 30mW Solution (RT7781T)
Jittering Frequency
Soft Driving for Reducing EMI Noise
VDD Over Voltage Protection
Internal Over Temperature Protection
Secondary Rectifier Short Protection
CS Pin Open Protection
RoHS Compliant and Halogen Free
Simplified Application Circuit
Applications
NB Adaptor
Switching AC/DC Adaptor with Low No-Load Input Power
TV and Monitor Applications
Open Frame Power Supply
Why Global Buyers Choose O&Kmarts
O&Kmarts:
- Access to a wide range of SKUs across multiple brands and series
- One RFQ connects you to 5,000+ global supplier quotes
- Better availability for urgent and hard-to-find parts
- Faster global delivery via FedEx / DHL / UPS
- Easier access to rare and high-value models
- Flexible sourcing for individual parts or complete solutions
- Lower MOQs and more adaptable buying options
- Multi-brand procurement in one order
- OEM replacement and alternative model solutions available
- Fewer intermediaries, ensuring more competitive pricing
Why Global Buyers Choose O&Kmarts
Local Suppliers:
- Limited to fast-moving SKUs only
- Limited local market availability
- Inventory frequently fails to meet urgent demand
- Long replenishment cycles, often taking weeks
- Rarely stock high-value compressors (e.g. Copeland YHV119)
- Frequently require bundled purchases
- Rigid and difficult MOQ negotiations
- Limited brand selection
- Minimal or no customization capability
- Higher local distribution and markup costs
Top Questions from OKmarts Buyers
Q: Does the OKmarts platform support Bill of Materials (BOM) uploading for rapid mass quoting?
A: Yes. Procurement teams do not need to search for individual parts manually. You can upload an Excel/CSV file containing your complete Bill of Materials (BOM) with part numbers, quantities, and brands. Our automated processing engine, backed by data engineers, will generate a comprehensive consolidated quote within 24 hours.
Q: How can I verify that a product on OKmarts is brand new and not "New Old Stock" (NOS) with degraded internal components?
A: Our warehouse management system strictly tracks manufacturing date codes, especially for sensitive components like VFD electrolytic capacitors or rubber seals. We explicitly state product conditions on the listing and can provide batch date codes prior to shipment for critical applications.
Q: How does OKmarts ensure data privacy and cybersecurity regarding our corporate blueprints and proprietary purchase data?
A: We protect your data using enterprise-grade SSL encryption and secure cloud architectures. Any technical blueprints, system designs, or proprietary engineering files uploaded to our servers for customization or compatibility analysis are treated under strict confidentiality protocols and non-disclosure standards.
RT7781GGS
RICHTEK IC RT7781GGS - RICHTEK - IC
High Efficiency
Stable Performance
Long Service Life
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Q&A
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Q: Are there any restrictions on the quantity of products I can purchase?
A: In order to prevent misuse or reselling, we may have quantity restrictions on certain products. These restrictions are typically mentioned on the product page or during the checkout process. If you require a larger quantity than allowed, please contact our customer service for further assistance.
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Q: Are there alternative options available for this product?
A: Absolutely! We offer a variety of alternative options for this product. Whether it's different colors, sizes, or styles, you can explore the range of alternatives available to find the perfect fit for your needs.
Customer reviews
4.4
Based on 5 reviews
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Jan 07, 2026
Roger BarbosaItem arrived exactly as expected, no issues. RT7781GGS is goated!Helpful?(0)(0)Nov 10, 2024
Christy D'ArmondRECIBÍ EXACTAMENTE LO QUE PEDÍ RT7781GGS is goated!Helpful?(1)(0)