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Vol. 45 | The Battle of the Bluetooth Behemoths A student came into our Nagarbhavi store yesterday, clutching a melted 20x20mm flight controller and a
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| 30+ | ₹54.00 ₹ 45.76 + 8.24 GST | |
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Precision double-sided adapter board. Converts 32-pin and 40-pin QFN packages with 0.5mm pitch to standard 2.54mm DIP pitch for breadboard use.
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Probots™ ProSpec Grade Engineering This adapter is Probots™ ProSpec Grade , featuring a high-quality, flame-retardant FR-4 substrate with precisely etched pads to ensure reliable electrical contact even at the miniaturized 0.5mm pitch. The Double-Sided Design provides maximum versatility for high-pin-count chips:
Side A (Front): Features a 0.5mm lead pitch layout optimized for QFN32 packages, with a central thermal clearance of 4.80mm.
Side B (Back): Features a 0.5mm lead pitch layout compatible with QFN40 packages, with a larger central thermal clearance of 6.00mm.
Output: Both sides convert the miniaturized terminals to two rows of standard 2.54mm (0.1") pitch holes, perfectly suited for standard male headers.
Board Length: 40.64mm (1.6 inches)
Board Width: 12.70mm (0.5 inches)
Pitch (Both Sides): 0.5mm
Material: High-quality FR-4 Glass Fiber
DIP Output Pitch: Standard 2.54mm (0.1 inch)
DIP Row Spacing: Standard 15.24mm (0.6 inch)
Number of Pins: Supports 32-pin and 40-pin configurations
Advanced Microcontroller Development: Test 32-pin or 40-pin QFN microcontrollers on a standard breadboard.
High-Density Logic Prototyping: Break out miniaturized logic gates or signal processors for easy wiring.
Component Salvaging: Reuse high-performance SMD ICs from salvaged electronics in new through-hole prototypes.
Unlock New Capabilities (Project Evolution)
Feature Upgrade: Both sides include a central area for chips requiring a thermal or ground connection, ensuring high-performance components stay cool during operation.
Effort Level: Advanced. Requires high-precision soldering or a hot air rework station due to the leadless nature of QFN and the 0.5mm pitch.
Package Includes:
1 x QFN32 / QFN40 to DIP Double-Sided Adapter PCB


Can I mount components on both sides at once? No, the through-holes for the DIP headers are shared; you should only mount one component per board.
What is the lead pitch for this board? Both sides feature a precision 0.5mm lead pitch.
Will this fit a standard breadboard? Yes, it converts the SMD pins to standard 2.54mm spacing for all breadboards.
Are the header pins included? No, 2.54mm male header pins are sold separately.
What is the size of the board? The board measures 40.64mm in length and 12.70mm in width.
Does it have a thermal pad? Yes, both sides include central pads for chips requiring a thermal or ground connection.
Which side is for the QFN32? Use the side labeled "QFN32" which has a 4.80mm center pad.
Which side is for the QFN40? Use the side labeled "QFN40" which has a 6.00mm center pad.
Do I need a special iron for this? A hot air rework station is highly recommended for leadless QFN packages.
How do I identify Pin 1? Pin 1 is indicated by a white dot or square pad on the silk screen.
Is the PCB material heat-resistant? Yes, the FR-4 material is rated for standard soldering temperatures.
Can I use this for 28-pin chips? While possible if the pitch matches, it is specifically optimized for 32 and 40 pin packages.
How many pins are broken out? Up to 40 pins can be broken out to the standard DIP spacing.
What is the diameter of the output holes? They are sized for standard 2.54mm pin headers.
What color is the PCB? The standard board is green with white silk screening.
Is there a mounting hole? No, the board is held in place by its header pins.
Can I reuse the board? If the component is desoldered carefully with hot air, the PCB can be reused.
What gauge wire fits the holes? Standard 22AWG solid wire or 2.54mm header pins are ideal.
What is the row spacing for the DIP output? It is standard 0.6-inch (15.24mm) spacing.
Why are there two different side designs? Different high-density ICs use varying pin counts and center pad sizes; this dual-sided design maximizes compatibility.
Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in
We delivery electronics components and parts throughout India using standard couriers like Bluedart, Delhivery & India Post.
For order related queries contact -
Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in
We offer specialized services for Bulk, Wholesale & B2B Customers like discounted prices, additional shipping options, customised products, etc . Customer with large quantity & regular orders qualify for the specialised discounted rates.
We also offer dedicated sales team to assist you with the order process by providing sales quotations, PI, technical support for choosing products, etc.
Note: Business Orders are processed manually and usually take 1-3 days to process compared to placing the order directly on our website. Please plan your purchases accordingly.
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Probots Electronics is highly regarded for its highly skilled team and knowledgeable staff who provide expert guidance to ensure customers select the right components for their technical projects. The business maintains a strong reputation for prompt service and reliable support, with many clients praising their quick response times and genuine commitment to customer satisfaction.
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