Conformal Coating - Rabbit RabbitCore RCM3100 User Manual

Distributor of Digi International: Excellent Integrated System Limited
Datasheet of 101-0533 - KIT DEV RABBIT3000/RCM3100
Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com
A.5 Conformal Coating
The areas around the 32 kHz real-time clock crystal oscillator has had the Dow Corning
silicone-based 1-2620 conformal coating applied. The conformally coated area is shown
in Figure A-5. The conformal coating protects these high-impedance circuits from the
effects of moisture and contaminants over time.
C58
C13
C55
C17
Q1
Figure A-5. RCM3100 Areas Receiving Conformal Coating
Any components in the conformally coated area may be replaced using standard soldering
procedures for surface-mounted components. A new conformal coating should then be
applied to offer continuing protection against the effects of moisture and contaminants.
NOTE: For more information on conformal coatings, refer to Technical Note 303, Con-
formal Coatings.
User's Manual
C44
Y1
C43
C46 C4 R5 R4 C3
C53
U2
C54
R14
R26
RP2
C23
R24
C57
C25
R30 U6
C56 Y2 C26 GND
Conformally coated
area
43