We have been using the TOP221YN for a number of years (10+) but unfortunately it has gone obsolete.
Please can you recommend alternatives (pin compatible if possible).
Thanks in advance
IMS erroneously published a list of obsolete PI PNs a couple of months ago. We informed them and corrected the error, but unfortunately, some confusion still persists. On the web at https://ac-dc.power.com/products/product-archive/, we have an archived product list indicating what is obsoleted or not.
The TOP221YN is still active, as we have continued to ship these in volume through Q1 of 2017.
We apologize for any worries caused.
Thanks for the reply and link.
the webpage for top switch states "This product is in End-of-Life status and is no longer available."
Is the statement incorrect then i.e. still an Active part with no end of life plans?
My apologies! There is indeed a mistake on that webpage, which we are in the process of correcting.
The TOPSwitch-II family will be put on a separate page, as it is still active. Although it is a product that we do not recommend for new designs, it is indeed a product that you can still buy.
Thats great, thanks.
Don't suppose you know of any stock anywhere? Our buyer is struggling to find any.
Here's a list of distributors who have bought the TOP221YN regularly:
AVNET TECHNOLOGY HONG KONG LTD.
POWERTECH DISTRIBUTION LTD.
ATM ELECTRONIC CORPORATION
ELEKTRONIKA SALES PVT. LTD
KEI KONG ELECTRONICS LTD
NIJKERK ELECTRONICS B.V.
MOUSER ELECTRONICS, INC.
WEIKENG INDUSTRIAL CO., LTD
BURNON INTERNATIONAL LTD.
WFE TECHNOLOGY CORP.
Perhaps your buyer can check with them.
Is TOP224YN going to go obsolete soon? Is there a replacement?
There is no plan for the TOP224YN to go obsolete soon.
I have noted that the TOP221YN is now not recommended for new designs, can you please advise when this part will no longer be available?
Dear Sir, may I get transformer (EE28) design for a SMPS 12 v 4a using TOP245YN?
Dear Shree goriya systems,
For new designs, we recommend using the TOPSwitch-JX over the TOPSwitch-GX (although it remains active). To get a transformer design, we suggest you use our PI Expert Online tool to do an equivalent design with the TOPSwitch-JX for your 12V, 4A requirement and manually select the EE28 core after the initial optimization is done.
At this time, we have no plans to go end-of-life with the TOP221YN.
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