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參數(shù)資料
| 型號： | RYC8220-4M |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHED CAPACITOR REGULATOR, PDSO8 |
| 封裝： | SO-8 |
| 文件頁數(shù)： | 6/18頁 |
| 文件大?。?/td> | 153K |
| 代理商： | RYC8220-4M |
4
338 Protected Power Switch Devices
Raychem Circuit Protection
Table P4. Environmental Specifications and Reliability Tests for Protected Power Switch Devices
Test
Conditions
Pass Criteria
Flammability
IEC 695-2-2 (Needle flame test)
20 sec. Flame application
Solderability
ANSI/J-STD-002, Category 3
> 95% coverage
Solder heat withstand
IEC 68-2-2, 260°C for 10 sec.
no damage
Solvent resistance
MIL-STD 202 Method 215
no mechanical damage
Temperature humidity bias
per JESD26, Test Method A101-B
1000 hrs @ 85°C/85% RH
High temperature storage life
per JESD26, Test Method A103-A
1000 hrs @ 150°C
High temperature operating life
per JESD26, Test Method A108-A
1000 hrs @ rated current, 120°C
Thermal shock
per JESD26, Test Method A104-A
1000 cycles @ –55°C to 125°C
Autoclave (PTH)
per JESD26, Test Method A102-B
96 hrs @ 121°C, 100% RH, 15 psi
Recommended Reflow Profile for Protected Power Switch Devices
Preheating
30 to 90 sec.
50
100
150
200
250
300
0
10 to 15 sec.
T
emperature
(
°C)
120 sec.
Soldering
Cooling
Time
Figure P27. Recommended Reflow Profile
Power switches are compatible
with standard reflow soldering
techniques. The following guide-
lines will assist in the proper
installation of the device:
Recommended reflow methods:
IR, vapor phase oven, hot air
oven.
Always preheat the device to
prevent excessive thermal
shock and stress.
Recommended maximum paste
thickness of 0.25 mm (0.010 in.)
Profile may vary among differ-
ent soldering systems, depend-
ing on board density and types
of components used.
Devices may be cleaned using
standard industry methods and
solvents.
Due to potential damage, it is
recommended that reworked
boards should use a new
device.
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