What is this International Rectifier part? - Page 1
Forum section: electronics / general

author: Arrow
author_rank: Contributor
timestamp: January 31, 2013, 10:14:20 pm
content: Hi all,Anybody knows what this part is? I got it in a power supply, so I thought array of mosfet or diodes.

author: Arrow
author_rank: Contributor
timestamp: February 06, 2013, 12:42:29 pm
content: Nobody yet? what a shame......

author: krish2487
author_rank: Frequent Contributor
timestamp: February 06, 2013, 02:44:05 pm
content: I dont think it is an array of diodes or mosfets...Since you found it in a power supply if I had to hazard a guess,I d say it was one of those intelligent PWM controllers with internal power switch (with or without PFC).

author: c4757p
author_rank: Super Contributor
timestamp: February 06, 2013, 02:51:56 pm
content: Seems pretty silly to design a power supply with some weird, new unobtainium-next-month diode/FET array when there are thousands of standard jelly bean parts that will do the job. I agree, it's probably an IC of some sort. Can't find anything on it, though. Have you tried finding the schematic for the supply? Or even manually trace out the circuit around it, if it's not too complicated.

author: Arrow
author_rank: Contributor
timestamp: February 06, 2013, 07:29:50 pm
content: It was from a machine power supply that should delivered at least 200Amps. I saw the logo from I R but can't find anything on the net. Strange....

author: krish2487
author_rank: Frequent Contributor
timestamp: February 07, 2013, 12:04:21 am
content: Well.. Tracing the tracks to the Power module should be a start...You might find the function of the IC and be able to look up an equivalent part of IR

author: nctnico
author_rank: Super Contributor
timestamp: February 07, 2013, 01:19:27 am
content: IR has (had?) modules with IGBT bridges, etc. It might be one of those. The sticker however may indicate it is a custom module. I once had an online UPS with a custom IGBT module from IR. Guess what happened to the UPS when the IGBT module got fried...

author: krish2487
author_rank: Frequent Contributor
timestamp: February 07, 2013, 01:57:41 am
content: Mitsbushi and Infineon still make those kind of modules.I think, in a DIP package AFAICR.Looking at the part and the output specs provided by the OP :-Those parts are generally rated for 10~20 Amps Input.Assuming it is a 240V line we are considering, we are talking about ~ 5 KVA of load capabiity.In reality, the power output should be closer to 3.5 KW max, if it is a reasonable efficiency system.and at the 200 Amps output I d say it is a 24/12V system.

author: poorchava
author_rank: Super Contributor
timestamp: February 07, 2013, 09:27:01 am
content: This is definitely a customer-specific part. 95-0173 is a customer-specific, IRF-internal order code. You are rather not likely to buyIRF does that when customer requests for example that the component is tested in some non-standard way, or particular tight tolerance is needed and post-production selection is made. It's just for internal identification for customer specific part. At may be fully custom as well. Hard to tell because you cannot search by internal part number on IRF site.

author: amyk
author_rank: Super Contributor
timestamp: February 07, 2013, 10:27:57 am
content: What's under the sticker?

author: Arrow
author_rank: Contributor
timestamp: February 07, 2013, 01:26:19 pm
content: Quote from: krish2487 on February 07, 2013, 12:04:21 amTracing??? If you take a good look at the pcb you will notice that it is a 6 layer pcb.

author: Arrow
author_rank: Contributor
timestamp: February 07, 2013, 01:27:18 pm
content: Quote from: amyk on February 07, 2013, 10:27:57 amnothing written.

author: bitwelder
author_rank: Super Contributor
timestamp: February 07, 2013, 06:27:11 pm
content: With some patient googling I got this alibaba page that, while the picture of the device looks wrong, it give some information about the device 90-0173:095-0173 IR 3+ DC/DC converters Intelligent Power Module igbt power module 2DIO: 600A35V(http://www.alibaba.com/product-gs/662576967/New_and_original_module_95_0173.html)Makes sense?Other pages point to some obscure Chinese seller that has a IOR 95-0173 in ZIP9 package (that seems to be the correct package looking at the photo)

author: Arrow
author_rank: Contributor
timestamp: February 07, 2013, 09:28:20 pm
content: It is difficult to findout because they have all the same number, checkhttp://www.alibaba.com/trade/search?fsb=y&IndexArea=product_en&CatId=&SearchText=95-0173