Philips Semiconductors
Productspecification
CAN transceiver for 24 V systems
PCA82C251
Suitability of IC packages for wave, reflow and dipping soldering methods
SOLDERING METHOD
WAVE
REFLOW(1) DIPPING
suitable(2)
MOUNTING
PACKAGE
Through-hole mount DBS, DIP, HDIP, SDIP, SIL
−
suitable
Surface mount
BGA, LFBGA, SQFP, TFBGA
not suitable
not suitable(3)
suitable
suitable
−
−
HBCC, HLQFP, HSQFP, HSOP, HTQFP,
HTSSOP, SMS
PLCC(4), SO, SOJ
LQFP, QFP, TQFP
SSOP, TSSOP, VSO
suitable
suitable
−
−
−
not recommended(4)(5) suitable
not recommended(6)
suitable
Notes
1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum
temperature (with respect to time) and body size of the package, there is a risk that internal or external package
cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the
Drypack information in the “Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods”.
2. For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit board.
3. These packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink
(at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version).
4. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction.
The package footprint must incorporate solder thieves downstream and at the side corners.
5. Wave soldering is only suitable for LQFP, QFP and TQFP packages with a pitch (e) equal to or larger than 0.8 mm;
it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.
6. Wave soldering is only suitable for SSOP and TSSOP packages with a pitch (e) equal to or larger than 0.65 mm; it is
definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.
2000 Jan 13
15
NXP [ NXP ]
