UM37521S

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SKU: UM37521S

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UM37521S Description

marking code	Part No.	Manufacturer	Package	Pin	Memo
5ES	UM37521S	union	SOT23-5	5	线性稳压器

Dc	2018+
Package	SOT23-5
Manufacturer	UNION

Service Assurance

The transaction is just the beginning, ONEPCBA provides a closed-loop service that guarantees quality from pre-sales to after-sales. As a value-added service provider, we provide quality assurance, including a longer after-sales guarantee time than the original factory.

We have established a clean, constant temperature warehouse, and constantly monitor the temperature and humidity of the warehouse. For electrostatic sensitive devices (MOS, transistors, CMOS devices, etc.), use electrostatic shielding measures; for magnetic field sensitive devices, also use corresponding magnetic field isolation measures.

In addition to ensuring the quality of components from the source, we have also established a strict QC warehousing process. We have established a database of components, including labels, chip appearances, chip silkscreens, and markings of wafers inside some chips. Compare the differences from various dimensions, and strictly confirm with the original factory. At the same time, we will also conduct other test requirements put forward by customers such as solderability, X-ray perspective inspection, ultrasonic scanning, slicing, uncapping, ambient temperature test, etc.

We establish a continuous cooperative relationship with original manufacturers, agents, and authorized catalogs to control the quality of materials from the source. Therefore, the components we sell are all traceable. Whether it is a process change or a version upgrade, we can be notified at the first time and inform customers of possible changes in advance to deal with various possible problems.

F&Q

Q: Where is onepcba located?

A: Shenzhen.

Q: Is onepcba as oleproprietorship?

A: Yes.

Q: Where does the inventory data ononepcba come from?

A: Onepcba's inventory comes from electronic component manufacturersand their licensing channels.

Q: How do I order components on onepcba?

A: Currently, onepcba only offers peer -to-peer order processing.At the same time as you submit your BOM, our professional agent will contact you with competitive prices in the global market, and if you accept our offer, our agent will prompt you to complete the order.

Q: How does onepcba guarantee that the components come from the original factory or authorized agents?

A: We have a professional and experienced quality control team that strictly validates and tests components. All suppliers must pass our qualification review before they can release products including components in onepcba;More than any other customer, we value the channel and quality of our component products. We strictly implement supplier audit, so that you can purchase with confidence.

Q: How about shipment?

A: Customers can choose from industry leading shipping companies including DHL, UPS, FedEx, TNT and Registered Mail.You can also choose shipping insurance, and once your order is processed for shipment, one of our sales staff will email you with shipping status and waybill number.

Q: How do I place an order?

A: Our team will contact you first with our prices.If you RSVP to accept, our agent will assist you in processing your order.Once the order is ready, we will send you an email notification with a package tracking number.

Q: How do I request a product quote?

A: 1. You can do this by clicking the Upload BOM button in the head of the website, filling in the information as required, and clicking Submit
2. You can also contact online customer service to indicate your requirements, the only information we need: your name, email address, country and the product you need (BOM)
3. Or you can send an email to our sales support service info@onepcba.com
4. We will reply to you by email within 24 hours after receiving your above quotation request.

Q: How to search for more types of components?

A: 1. You can find the search bar at the top of each page.
2. If the product does not exist in our database, you can contact our customer service to add the product to the BOM.We do our best to source from our supply chain network, and we promise not to charge any additional fees.

Q: How do I check the status of my order?

A: You can track your package by going to the airline's official website and following the instructions above.

Q: What is the return and exchange process for components? ?

A: All shipments will be subjected to a pre-shipment inspection (PSI), a systematic inspection of all batches of your order that will be randomly selected before shipment is scheduled.If we ship a component with a problem, we will only accept an exchange or return of the component if all of the following conditions are met:
（I） Such as insufficient quantity, incorrect shipment, and obvious external defects (breakage, rust, etc.).
（II） Notify us within 90 days to appeal the component problem.
（III） The part number is not used and is only in the original unwrapped package.

Q: How to contact us for technical support, such as product details, data sheets, etc.?

A: If you need any after-sales service, please do not hesitate to contact our customer service.Our customer service email: info@onepcba.com