Do you have a UK Farnell account?

eeka chu · 18th July 2004, 03:13 PM

Hi guys,

I am building a prototype of a 10W switchmode power supply. I need to use some Schottky's in the output for rectification. I also need a diode to clamp transient voltage spikes before they vapourise the internal MOSFET of the controller. After some careful consideration, I decided to go with a 60V ~1A SMD from Internation Rectifier for the rectification and the SMBJ60A for the transient clamping.

I mailed IRF about samples of the diode, but they could only suggest that I contacted one of their distributors - who all sell them in jillion unit quantaties.

I only need four of the diodes, so even fifty of them is excessive.

Farnell does sell them in single unit quantaties. But then they also have a minimum order value of twenty pounds.

So, if anyone has an account with Farnell in the UK, I'd appreciate it a lot if you'd consider letting me add the diodes to your next order.

I think the IRF diodes cost something like thirty pence each, and the transient diode is around fourteen pence per unit.

I am having a custom magentic designed and wound for the supply. The engineer finished the work last week but it'll be about a week or two before I can get hold of the samples.

If you're already planning to make an order soon, that'd be great. I can send you a S.A.E. so all you need do is drop the diodes into it and put them in the post.

Please let me know if you'd be interested in helping me out with this one!

Tarzan · 18th July 2004, 05:24 PM

Hi, I know what you mean; not that I can help you but you are raising a point.
As a private user I can not order huge qty's and the mfg's are not all willing to send samples. Some do and that is great.
Like Farnell or RS you need to have an account and without a TVA number; no way...
It's a pitty. I do not mind to pay a bit more so that the components sellers can earn their living.
Farnell and RS should sell in small qty's to anybody.
Maybe you can go to a repairman and ask him to order through Farnell.

Good luck any way.
Cheers for now

richie00boy · 18th July 2004, 05:30 PM

As it happens I want to order some stuff from Farnell this week and would welcome the chance to bump up the value as I'm not sure I've hit the £20 barrier yet. I will check my order and get back to you tomorrow.

cpemma · 18th July 2004, 10:38 PM

Quote:

Originally posted by Tarzan
Like Farnell or RS you need to have an account ...
Farnell and RS should sell in small qty's to anybody.

RS have no minimum order, and despite the blurb in their Conditions,

Quote:

RS is a business-to-business supplier. The RS website is intended for use by business customers and not for consumers or private individuals.

anyone with a credit card can order online from them. You need to register, but I'm sure Tarzan Enterprises will see you straight.

The high RS delivery charge puts me off using them more, but that's another topic.

richie00boy · 19th July 2004, 09:17 AM

RS does not have a minimum order nor delivery charge. That's part of the reason why they are relatively expensive.

eeka chu, I will definitely be ordering this week so let me know the order codes and quantities and your address and we can sort it out

Obviously I will have to claim postage costs back for mailing out to you, but this shouldn't be much.

grrr_arrghh · 19th July 2004, 10:52 AM

Quote:

RS does not have a minimum order nor delivery charge

Only if you have an account with them. to have an account you need to be a bussiness.

If you don't have an account the delivery is huge. Its like £7 or something. No way.

cpemma · 19th July 2004, 11:48 AM

Quote:

Originally posted by grrr_arrghh
If you don't have an account the delivery is huge. Its like £7 or something. No way.

It's high, but not quite that bad.

Code:

# Delivery
2.1 NEXT DAY DELIVERY: Next Day Delivery is FREE TO ACCOUNT CUSTOMERS. 
Non-account Customers shall pay the rates detailed in Table 1 for Next Day Delivery.
Sub-total for ordered products 	Post & Packing Charge
up to £29.99 	        £4.95 + VAT = £5.81
£30.00 to £79.99 	£2.95 + VAT = £3.47
£80.00 and over 	£1.75 + VAT = £2.06
Table 1: Post and Packing charges for non-account customers only

grrr_arrghh · 19th July 2004, 11:53 AM

still nearly £6...

Fine if you are going to buy a years worth of stuff in one go, but I buy things for individual projects as i need them - I can't afford to by stuff 'just in case'

(sorry, I realise I've hijacked this thread slightly...)

dhaen · 19th July 2004, 12:22 PM

eeka chu, you have mail.

18th July 2004, 03:13 PM	#1
eeka chu diyAudio Member Join Date: Nov 2003 Location: England	Do you have a UK Farnell account? Hi guys, I am building a prototype of a 10W switchmode power supply. I need to use some Schottky's in the output for rectification. I also need a diode to clamp transient voltage spikes before they vapourise the internal MOSFET of the controller. After some careful consideration, I decided to go with a 60V ~1A SMD from Internation Rectifier for the rectification and the SMBJ60A for the transient clamping. I mailed IRF about samples of the diode, but they could only suggest that I contacted one of their distributors - who all sell them in jillion unit quantaties. I only need four of the diodes, so even fifty of them is excessive. Farnell does sell them in single unit quantaties. But then they also have a minimum order value of twenty pounds. So, if anyone has an account with Farnell in the UK, I'd appreciate it a lot if you'd consider letting me add the diodes to your next order. I think the IRF diodes cost something like thirty pence each, and the transient diode is around fourteen pence per unit. I am having a custom magentic designed and wound for the supply. The engineer finished the work last week but it'll be about a week or two before I can get hold of the samples. If you're already planning to make an order soon, that'd be great. I can send you a S.A.E. so all you need do is drop the diodes into it and put them in the post. Please let me know if you'd be interested in helping me out with this one!

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18th July 2004, 05:24 PM	#2
Tarzan diyAudio Member Join Date: May 2004 Location: Genk	Hi, I know what you mean; not that I can help you but you are raising a point. As a private user I can not order huge qty's and the mfg's are not all willing to send samples. Some do and that is great. Like Farnell or RS you need to have an account and without a TVA number; no way... It's a pitty. I do not mind to pay a bit more so that the components sellers can earn their living. Farnell and RS should sell in small qty's to anybody. Maybe you can go to a repairman and ask him to order through Farnell. Good luck any way. Cheers for now

18th July 2004, 05:30 PM	#3
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	As it happens I want to order some stuff from Farnell this week and would welcome the chance to bump up the value as I'm not sure I've hit the £20 barrier yet. I will check my order and get back to you tomorrow.

19th July 2004, 09:17 AM	#5
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	RS does not have a minimum order nor delivery charge. That's part of the reason why they are relatively expensive. eeka chu, I will definitely be ordering this week so let me know the order codes and quantities and your address and we can sort it out Obviously I will have to claim postage costs back for mailing out to you, but this shouldn't be much.

19th July 2004, 11:53 AM	#8
grrr_arrghh diyAudio Member Join Date: Jul 2004 Location: UK	still nearly £6... Fine if you are going to buy a years worth of stuff in one go, but I buy things for individual projects as i need them - I can't afford to by stuff 'just in case' (sorry, I realise I've hijacked this thread slightly...)

19th July 2004, 12:22 PM	#9
dhaen diyAudio Moderator Emeritus Join Date: Jun 2002 Location: U.K.	eeka chu, you have mail.

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