Juliano,

We use a four spot humidity indicator card (10%, 20%, 30%, 40%).  Our HIC limit is 20%.  If the 30% changes color, the contents requires baking.  I don't know why you would have an HIC with 60% as an indicator.

Phil

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Datacom - Juliano Ribeiro
Sent: Wednesday, April 30, 2014 1:10 PM
To: [log in to unmask]
Subject: [TN] RES: [TN] PCB Humidity

Thank you Gabriele for your answer, but the IPC1601 don't have an information about what are the maximum level Humidity? Or I didn't find this information.
For example, the components according to thickness are Level 3 or 4 or....
and the PCB Is there table about this?
We need to register in my incoming to verify the HIC, but what's acceptable humidity?

Thank you

_____________________________
Juliano Bettim Ribeiro
DATACOM
ENGENHARIA DE PROCESSOS
Rua América Nº 1000 - Eldorado do Sul - RS CEP: 92990-000
+55 (51) 8446-2135
+55 (51) 3933-3000
Ramal: 3877
[log in to unmask]
www.datacom.ind.br

-----Mensagem original-----
De: SALA GABRIELE [mailto:[log in to unmask]] Enviada em: quarta-feira, 30 de abril de 2014 16:10
Para: 'TechNet E-Mail Forum'; 'Datacom - Juliano Ribeiro'
Assunto: R: [TN] PCB Humidity

Hi Juliano,

this standard gives worthy guidelines:

IPC-1601  Printed Board Handling and Storage Guidelines.

http://www.ipc.org/TOC/IPC-1601.pdf

Gabriele


-----Messaggio originale-----
Da: TechNet [mailto:[log in to unmask]] Per conto di Datacom - Juliano Ribeiro
Inviato: mercoledì 30 aprile 2014 19.57
A: [log in to unmask]
Oggetto: [TN] PCB Humidity

Hi to all,

We received a PCB lot with HIC more than 10% but less than 60%.

What is IPC/JEDEC or others specifications to Humidity limits to PCB?

Is it good or no good PCB?



Thank you

_____________________________

Juliano Bettim Ribeiro

DATACOM

ENGENHARIA DE PROCESSOS
Rua América Nº 1000 - Eldorado do Sul - RS CEP: 92990-000
+55 (51) 8446-2135

+55 (51) 3933-3000

Ramal: 3877
 <mailto:[log in to unmask]> [log in to unmask]
 <http://www.datacom.ind.br/> www.datacom.ind.br




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