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May 2001

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Subject:	Re: Pin Length
From:	Manoj Viswambharan <[log in to unmask]>
Reply To:	DesignerCouncil E-Mail Forum.
Date:	Mon, 14 May 2001 10:31:37 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (71 lines)

Roger,

Thank you for the information. It was very helpful and kind of you.

Best regards,
Manoj

Principal Design Engineer
Village Networks, Inc.
246 Industrial Way
Eatontown, New Jersey 07724
Phone: +1 (732) 460-5964
Fax: +1 (732) 460-9851
www.villagenetworks.com
[log in to unmask]

-----Original Message-----
From: [log in to unmask]
[mailto:[log in to unmask]]
Sent: Monday, May 14, 2001 8:43 AM
To: DesignerCouncil E-Mail Forum.; Manoj Viswambharan
Subject: Re: [DC] Pin Length



IPC-2221, Section 8.3.1: Lead Mounted in Through-Holes:  Minimum of 0.5mm
and maximum of 1.5mm from suface of plating or foil.

Roger M. Stoops, C.I.D., PCB Designer


Trimble
Engineering and Construction Division
5475 Kellenburger Rd.
Dayton, OH 45424-1099 USA
Ph: +01 937.233.8921 or +01 937.233.4574 ext 288
Fax: +01 937.233.7511





I searched the several internet sites and couldn't find a standard that
covers the following question:

What is the MINIMUM pin length in order to be able to reliably solder a
through-hole component to the PWB?

The pin diameter is 25mils. Hole diameter is 40mils. Pad diameter is hole
diameter + 15mils. Board thickness is 78mils.

Can you point me to a reference regarding this matter?

Thanks in advance for any assistance.

Regards,
Manoj Viswambharan
Principal Design Engineer
Village Networks, Inc.
[log in to unmask]

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