Check for Samples: LM, LMN, LMA. In addition to higher −40°C ≤ TJ ≤ +°C, and the LM is rated for 0°C handled. ≤ TJ ≤ +°C. The LM is an adjustable 3-terminal positive voltage . FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE. I have a current regulated supply (fed by a 24V power supply) that used to have a Fairchild LM in it. This supply has a set of switches that let.

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We are also hope that you can do me the same. For additional information, see the Global Shipping Programme terms and conditions – opens in a new window or tab. Add to Watch list. Fairchild LM dies, takes other parts with i I believe all voltage regulators recommend an input bypass capacitor.

LM350 Fairchild

Learn More – opens in a new window or tab International postage and import charges paid to Pitney Bowes Inc. Maybe there was a turn on transient or as someone mentioned, oscillations.

And the voltage can be set all the way up to 30 volts, so they aren’t completely fool proof. Doug, Could oscillations lead to the part failing? All of my testing with Luxeons has happened with this supply, and I’ve never had a problem until now.


Most purchases from business sellers are protected by the Consumer Contract Regulations which give you the right to cancel the purchase within 14 days after the day you receive the item. Find out more about your rights as a buyer – opens in a new window or tab and exceptions – opens in a new window or tab.


My config has two regulators that are daisy chained CC configured regulator feeds the voltage regulated side fairchilr it’s not very efficient and has a limited range but it’s fairly inexpensive and does what I want it to.

I always assumed that ‘the big guy’ could really honk on the input line and stray inductance would get it in trouble without the cap The item you’ve selected wasn’t added to your basket.

For additional information, see the Global Shipping Programme terms and conditions – opens in a new window or tab This amount includes applicable customs duties, taxes, brokerage and other fees. Perhaps you can post the circuit so we can take a critical look.

You’re covered by the eBay Money Afirchild Guarantee if you receive an item that is not as described in the listing. Okay, my mistake on the red resistors.

Seller information cayin35 I’ve literally used this supply for s of hours driving luxeons. We are unable to take any responsibility for any custom delay or tax. Normally, we leave positive feedback for you once payment received.


Perhaps a large cap from ADJ pin to ground would help. I’m surprised at the variety of sizes of your 1 watt resistors. Since the acrylic cap would no longer fit, I re-sealed it with some lm530 clear epoxy. Learn more – opens in new window or tab. I did a quick look on Digikey and the 1 watt ones I saw were all 9 mm.


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Learn More – opens in a new window or tab. Add to Watch list Watching. Eventually at board rev time, I used a discrete regulator and never heard from it again. Not a complete recovery, so this luxeon will be used for testing. Please enter a number less than or equal to If the item comes direct from a manufacturer, it may be delivered in non-retail packaging, such as a plain or unprinted box or plastic bag.

I don’t know if a lack of an input capacitor is your problem though. People who viewed vairchild item also viewed.

This item will be sent through the Global Shipping Programme and includes international faidchild. Not sure if it’ll work or not, but it’ll be fun to try. Bookmarks Bookmarks Digg del.

Datasheet «LM350»

This doesnt explain why the LM device failed however. If you are not satisfied when you receive your item, please return it within 30 days for a replacement or money back. The seller hasn’t specified a postage method to United States. Contact the seller – opens in a new window or tab and request post to your location.

Since the luxeon is dead anyways, I’m going to try to pop the dome off and see about soldering the bond wire back together. The 1 ohms Digikey part number is BC1.