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LAP

更新时间： 2024-09-23 11:40:03
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罗姆 - ROHM /
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Solder Profile and Pattern

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LAP 数据手册

  
Solder Profile and Pattern  
1) Dip Types (LA, LB ,LAP,LBP series)  
Please keep the preheat and peak temperatures with dip units as low as possible and the times as short as  
is feasible, since the products are susceptible to heat during flow soldering. As a guide, ensure that the  
internal temperature of the LED numeric display does not exceed 100°C.  
Solder Pattern Example  
Soldering Example  
300  
LA-301 series  
A single wave is better than a double wave, while  
3s or less  
+0.1  
stationary flow method is the best.  
φ1.5 land shape  
0
250  
260°C or less  
After soldering, immediately lower  
the temperature of the substrate  
200  
+0.1  
φ0.8 hole shape  
0
150  
Preheat 30s  
or less  
Other series  
Conditions  
General  
flow conditions  
100  
50  
0
+0.1  
φ2.0 0 land shape  
+0.1  
φ1.0 hole shape  
0
0
20  
40  
60  
80  
Time (s)  
100  
120  
140  
Item  
Conditions  
Solder Temperature  
Process Duration  
30 seconds or less  
3 seconds or less  
Preheat temperature must  
be no greater than 80°C.  
Solder dip  
At least 2mm from the base of the lead pin.  
No more than 260°C.  
No more than 300°C.  
At least 2mm from the base of the lead pin.  
Power: No more than 30W.  
Solder iron  
Reflow  
3 seconds or less  
Reflow cannot be used. (other than the LF-301 series)  
Please use a resin-based flux, since flux that is acidic or highly alkaline could cause corrosion.  
∗
2) Surface Mount Type (LF-301 series)  
Please refer to the following reflow soldering profile and pattern examples for surface mount units.  
Solder Pattern Example  
Reflow Soldering Example  
LF-301 A/K series  
D: Peak Temperature  
250  
C: Heat Slope 2  
200  
B: Preheat  
150  
E: 200°C  
+ range  
100  
A: Heat Slope 1  
50  
0
0
50  
100  
150  
200  
250  
300  
Time (s)  
10-0.6  
P=1.27  
Type  
A (Heat Slope 1)  
B (Preheat)  
C (Heat Slope 2)  
D (Peak temperature, peak time)  
E (200°C + range)  
140 to 160°C  
LF-301A/K series  
4°C/s max  
4°C/s max.  
250°C max, 5s max.  
50s max.  
(1 min. or less)  
1

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