Chapter 23 Recommended Soldering Conditions - NEC PD789860 User Manual

8-bit single-chip microcontrollers pd789860 subseries; pd789861 subseries
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CHAPTER 23 RECOMMENDED SOLDERING CONDITIONS

µ
The
PD789860, 789860(A), 789861, 78E9860A, and 78E9861A should be soldered and mounted under the
following recommended conditions.
For soldering methods and conditions other than those recommended below, contact an NEC Electronics sales
representative.
For technical information, see the following website.
Semiconductor Device Mount Manual (http://www.necel.com/pkg/en/mount/index/html)
Table 23-1. Surface Mounting Type Soldering Conditions (1/2)
µ
PD789860MC-×××-5A4:
µ
PD789861MC-×××-5A4:
µ
PD789860MC(A)-×××-5A4: 20-pin plastic SSOP (7.62 mm (300))
Soldering Method
Infrared reflow
Package peak temperature: 235°C, Time: 30 seconds max. (at 210°C or higher),
Count: three times or less
VPS
Package peak temperature: 215°C, Time: 40 seconds max. (at 200°C or higher),
Count: three times or less
Wave soldering
Solder bath temperature: 260°C max., Time: 10 seconds max., Count: Once,
Preheating temperature: 120°C max. (package surface temperature)
Partial heating
Pin temperature: 300°C max. Time: 3 seconds max. (per pin row)
Caution Do not use different soldering method together (except for partial heating).
20-pin plastic SSOP (7.62 mm (300))
20-pin plastic SSOP (7.62 mm (300))
Soldering Conditions
User's Manual U14826EJ5V0UD
Recommended
Condition Symbol
IR35-00-3
VP15-00-3
WS60-00-1
197

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