ST203C686MAJ03 AVX Corporation, ST203C686MAJ03 Datasheet - Page 83

• Manufacturer Part Number: ST203C686MAJ03
• Description: CAP CER 68UF 25V STACKED SMD
• Manufacturer: AVX Corporation
• Series: TurboCap™r

Specifications of ST203C686MAJ03

• Capacitance: 68µF
• Tolerance: ±20%
• Temperature Coefficient: X7R
• Voltage - Rated: 25V
• Mounting Type: Surface Mount, MLCC
• Operating Temperature: -55°C ~ 125°C
• Features: Stacked
• Applications: Filtering Switch Mode Power Supplies
• Package / Case: 6-Stacked SMD, J-Lead
• Size / Dimension: 0.325" L x 0.300" W (8.26mm x 7.62mm)
• Thickness: 5.59mm Max
• Lead Style: J-Lead
• Voltage Rating: 25 Volts
• Operating Temperature Range: - 55 C to + 125 C
• Product: General Type MLCCs
• Dielectric Characteristic: X7R
• Capacitance Tolerance: ± 20%
• Capacitor Case Style: DIP
• No. Of Pins: 6
• Capacitor Mounting: SMD
• Rohs Compliant: No
• Termination Style: Radial
• Lead Spacing: 6.35 mm
• Dimensions: 7.62 mm W x 8.26 mm L x 5.59 mm H
• Dissipation Factor Df: 2.5
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Ratings: -
• Lead Spacing: -
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 478-6117

Surface Mounting Guide
MLC Chip Capacitors
REFLOW SOLDERING
Component pads should be designed to achieve good
solder filets and minimize component movement during
reflow soldering. Pad designs are given below for the most
common sizes of multilayer ceramic capacitors for both
wave and reflow soldering. The basis of these designs is:
WAVE SOLDERING
Component Spacing
For wave soldering components, must be spaced sufficiently
far apart to avoid bridging or shadowing (inability of solder to
penetrate properly into small spaces). This is less important
for reflow soldering but sufficient space must be allowed to
enable rework should it be required.
Component Pad Design
82
Dimensions in
millimeters (inches)
D1
D1
D2
D3
D4
D2
D3
D4
D5
≥1.5mm (0.06)
≥1mm (0.04)
≥1mm (0.04)
D5
Dimensions in millimeters (inches)
Case Size
*AVX recommends reflow soldering only.
Case Size
*1210 (LD10)
*1808 (LD08)
*1812 (LD12)
*1825 (LD13)
*2220 (LD20)
*2225 (LD14)
*HQCC
*3640 (LD40)
*HQCE
0805 (LD05)
1206 (LD06)
0805
1206
4.00 (0.15)
5.00 (0.19)
10.67 (0.427)
10.67 (0.427)
6.60 (0.260)
3.00 (0.120)
4.00 (0.160)
4.00 (0.160)
5.60 (0.220)
5.60 (0.220)
5.60 (0.220)
6.60 (0.260)
6.60 (0.260)
D1
D1
1.50 (0.06)
1.50 (0.06)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.52 (0.060)
1.52 (0.060)
• Pad width equal to component width. It is permissible to
• Pad overlap 0.5mm beneath component.
• Pad extension 0.5mm beyond components for reflow and
Preheat & Soldering
The rate of preheat should not exceed 4°C/second to
prevent thermal shock. A better maximum figure is about
2°C/second.
For capacitors size 1206 and below, with a maximum
thickness of 1.25mm, it is generally permissible to allow a
temperature differential from preheat to soldering of 150°C.
In all other cases this differential should not exceed 100°C.
For further specific application or process advice, please
consult AVX.
Cleaning
Care should be taken to ensure that the capacitors are
thoroughly cleaned of flux residues especially the space
beneath the capacitor. Such residues may otherwise
become conductive and effectively offer a low resistance
bypass to the capacitor.
Ultrasonic cleaning is permissible, the recommended
conditions being 8 Watts/litre at 20-45 kHz, with a process
cycle of 2 minutes vapor rinse, 2 minutes immersion in the
ultrasonic solvent bath and finally 2 minutes vapor rinse.
D2
D2
decrease this to as low as 85% of component width but it
is not advisable to go below this.
1.0mm for wave soldering.
1.00 (0.04)
2.00 (0.09)
1.00 (0.040)
2.00 (0.090)
2.00 (0.090)
3.60 (0.140)
3.60 (0.140)
3.60 (0.140)
4.60 (0.180)
4.60 (0.180)
4.60 (0.180)
7.62 (0.300)
7.62 (0.300)
D3
D3
1.50 (0.06)
1.50 (0.06)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.00 (0.040)
1.52 (0.060)
1.52 (0.060)
D4
D4
millimeters (inches)
10.16 (0.400)
10.16 (0.400)
1.25 (0.05)
1.60 (0.06)
1.25 (0.050)
1.60 (0.060)
2.50 (0.100)
2.00 (0.080)
3.00 (0.120)
6.35 (0.250)
5.00 (0.200)
6.35 (0.250)
6.35 (0.250)
D5
D5