ALLSOCKET
0 ratings
QFN20(4x4)-0.5 Testing Socket, QFN20 MLF20 WLCSP20 Package Burn-in Socket, 0.5mm Pitch IC 4x4mm IC550-0204-009-G QFN IC MCU Programming Socket(Clamshell, 0.5mm)
genuine image
QFN20(4x4)-0.5 Testing Socket, QFN20 MLF20 WLCSP20 Package Burn-in Socket, 0.5mm Pitch IC 4x4mm IC550-0204-009-G QFN IC MCU Programming Socket(Clamshell, 0.5mm)
The perfect solution for your manual testing needs, supporting 15,000 cycles of reliable operation!
QFN20(4x4)-0.5 Testing Socket, QFN20 MLF20 WLCSP20 Package Burn-in Socket, 0.5mm Pitch IC 4x4mm IC550-0204-009-G QFN IC MCU Programming Socket(Clamshell, 0.5mm)
Item #: 110694612

QFN20(4x4)-0.5 Testing Socket, QFN20 MLF20 WLCSP20 Package Burn-in Socket, 0.5mm Pitch IC 4x4mm IC550-0204-009-G QFN IC MCU Programming

Item #: 110694612
0 ratings Write a review
Out of stock
us Imported from USA store
Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
The perfect solution for your manual testing needs, supporting 15,000 cycles of reliable operation!
Search for similar products
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Versatile Compatibility
Designed for QFN20, MLF20, and WLCSP20 packages, this socket ensures compatibility with a wide range of ICs, enhancing its utility for diverse programming and testing tasks.
Efficient Design
The clamshell structure facilitates easy insertion and removal of ICs, while the 0.5mm pitch allows for precision connections, enhancing testing efficiency and reducing setup time.
Durable Build
Manufactured with high-quality materials, this socket ensures longevity and reliability, providing consistent performance for burn-in testing and MCU programming projects, offering great value for investment.

Product Details

Shop QFN20(4x4)-0.5 Testing Socket, QFN20 MLF20 WLCSP20 Package Burn-in Socket, 0.5mm Pitch IC 4x4mm IC550-0204-009-G QFN IC MCU Programming Socket(Clamshell, 0.5mm) online at a best price in Togo. B071Y726XD
Brand NameALLSOCKET
Model NumberIC550-0204-009-G
ManufacturerALLSOCKET
Part NumberQFN20(4x4)-0.5-SCL
Contact Plating MaterialGold
Contact MaterialBeryllium Copper
Item Weight0.5 lbs (230 grams)

Who Should Buy?

Suitable For
  • Electronics Engineers

    Ideal for engineers developing and testing circuits with QFN packages, ensuring reliable connections during programming and burn-in tests.

  • Prototyping Labs

    Useful in prototyping environments where frequent IC changes are required without soldering, enhancing testing efficiency.

  • Manufacturing Facilities

    Suitable for factories performing high-volume programming and testing of QFN ICs, ensuring consistent quality and performance.

Not Suitable For
  • Hobbyist Users

    May be too complex or costly for casual hobbyists working on simple projects or with non-QFN components.

Product Description

QFN20(4x4)-0.5 Testing Socket, QFN20 MLF20 WLCSP20 Package Burn-in Socket, 0.5mm Pitch IC 4x4mm IC550-0204-009-G QFN IC MCU Programming Socket(Clamshell, 0.5mm)

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the QFN20(4x4)-0.5 Testing Socket used for?

    Answer: The QFN20(4x4)-0.5 Testing Socket is designed for programming and testing QFN, MLF, and WLCSP package ICs with a 0.5mm pitch. This socket provides a reliable connection for various operations including IC programming, testing functionality, and burn-in processes. Engineers and developers utilize this socket in prototype development stages or small-scale production runs to ensure their embedded systems operate correctly.
  • Question: How does the QFN20(4x4)-0.5 Socket facilitate IC programming?

    Answer: The socket allows for seamless interface with ICs during the programming process by providing an efficient, low-resistance connection. This is crucial for ensuring that the programming signals reach the IC without distortion. It is especially useful in scenarios where programming multiple ICs quickly is necessary, such as in manufacturing or during extensive testing phases in design validation.
  • Question: Can I use the QFN20(4x4)-0.5 Socket for other package types?

    Answer: While primarily designed for QFN20, MLF20, and WLCSP20 packages, this socket may also work with other similar-sized ICs that fit the dimensions and pin configurations. Users often adapt these sockets to work in various applications by leveraging compatible sockets or adapters, making it versatile in different programming environments.
  • Question: What are the key specifications of the QFN20(4x4)-0.5 Testing Socket?

    Answer: Key specifications include a pitch of 0.5mm, a size of 4x4mm, and compatibility with QFN20, MLF20, and WLCSP20 packages. It is crafted to ensure optimal performance in terms of signal integrity and durability. Engineers looking for precise measurements and configurations often find these specifications crucial, especially in high-performance applications where reliability is paramount.
  • Question: Is the QFN20(4x4)-0.5 Socket suitable for high-frequency testing?

    Answer: Yes, the QFN20(4x4)-0.5 Socket is optimized for high-frequency applications, providing excellent signal integrity which is essential when testing high-speed ICs. Users in telecommunications, automotive, and high-performance computing sectors benefit from this feature, ensuring that their products meet demanding performance standards during testing cycles.
  • Question: What materials are typically used in the QFN20(4x4)-0.5 Socket's construction?

    Answer: The QFN20(4x4)-0.5 Socket is generally made from high-quality materials such as brass or other conductive metals for the contacts, coupled with a durable plastic housing that ensures insulation and long-term usability. This construction is pivotal for providing reliable, repeatable connections during testing and programming, making them ideal for both lab and production environments.
  • Question: How do I install the QFN20(4x4)-0.5 Test Socket?

    Answer: Installation typically involves placing the socket on a compatible test board and securely connecting the IC to the socket. This is often aided by alignment features that ensure correct insertion. Proper installation is critical to get accurate results during programming; thus, following manufacturer guidelines or instructional videos can clarify the process for first-time users.
  • Question: What types of ICs can be programmed using the QFN20 Testing Socket?

    Answer: The socket is explicitly tailored for programming various QFN, MLF, and WLCSP package ICs, particularly those used in microcontrollers and digital signal processors. Practitioners in embedded systems often use it when working with multiple IC types within these package specifications to ensure compatibility and efficiency in their programming workflows.
  • Question: Where can I buy the QFN20(4x4)-0.5 Testing Socket?

    Answer: You can purchase the QFN20(4x4)-0.5 Testing Socket from Ubuy in Togo. Ubuy offers a variety of electronic components including this socket, ensuring a reliable source for your testing and programming needs. Their platform provides a straightforward purchasing experience, making it an excellent choice for engineers and developers seeking quality electronic parts.

ALLSOCKET SOIC Sockets IC550-0204-009-G Editorial Review

The QFN20(4x4)-0.5 Testing Socket is an essential tool for IC MCU programming, designed to support QFN20, MLF20, and WLCSP20 packages with a compact 0.5mm pitch. This burn-in socket, made by ALLSOCKET, features high-quality gold contact plating for excellent conductivity and durability. Weighing only 0.5 lbs, it is user-friendly and portable, making it suitable for various testing environments. Many users appreciate its reliability in ensuring secure connections during programming sessions, enhancing workflow efficiency. Given its robust design and specialized application, this product stands out for those working with microcontrollers and integrated circuits.

Customer Reviews & Ratings

1 customers ratings
  • 5 Star
    100%
  • 4 Star
    0%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Pros

  • Compact design for easy handling
  • Durable beryllium copper contacts
  • High-quality gold plating for conductivity
  • Supports multiple package types
  • Lightweight design for portability

Cons

  • May require additional adapters for some IC models

Platform Trust & Buyer Confidence

trustpilot logo
4.2/5 9477 reviews
Read reviews
JK
Jasmin
Verified buyer

“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
AG
Anke
Verified buyer

“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
H
Hazel
Verified buyer

“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer

“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
AC
Adele
Verified buyer

“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

Currently unavailable.

We don't know when or if this item will be back in stock.

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Designed for manual testing with a clamshell structure.
  • Supports a wide temperature range from -40 to +150 Celsius.
  • Durable with 15,000 mechanical operation cycles.
  • Compatible with QFN20, MLF20, WLCSP20 packages.
  • Quality materials with gold-plated beryllium copper contacts.
  • Easy assembly for use as an adapter or on a test board.

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.