PTB Series
Diagram of Dimensions
Polymer Tantalum Chips
Engineering Bulletin Jul 03
Unit: mm
Case Dimensions
L
W
Case
Code
B2
D4L
D6
D8
3.5
7.3
7.3
7.3
L
0.2
0.2
0.2
0.2
2.8
4.3
4.3
4.3
W
0.2
0.2
0.2
0.2
1.9
1.8
2.8
3.8
H
0.1
0.1
0.2
0.2
0.8
1.3
1.3
1.3
a
0.2
0.2
0.2
0.2
2.2
2.4
2.4
2.4
b
0.2
0.2
0.2
0.2
H
a
a
b
Marking Codes
Rated
Voltage
2.5V
4V
6.3V
10V
Code
All Cases
e
g
j
A
Marking Example 4V, 470µF
Polarity ( Anode )
470
Rated Capacitance ( µF )
Lot No.
g
Rated Voltage ( VDC )
Recommended Reflow Soldering Conditions
Temperature Profile for Air or Infrared Reflow Soldering Methods
Peak
Temperature
Surface and Terminal Temperature (°C)
Peak
230
200
Recommended time and temperature for soldering conditions is
specified for the surface and terminal temperature of the polymer
tantalum chip capacitors.
Max.Time
Over 230 C
Time and Temperature Ranges
150
Preheat
150 C
120 sec. max.
25
Time (sec.)
Max.Time
Over 200 C
Reflow Conditions
Max. Time
Preheat
Temperature
Max. Time Over 200 C
Reflow
Max. Time Over 230 C
Max. Peak Temperature
Case Code
B2, D4L, D6, D8
120 seconds
150 C
60 seconds
40 seconds
250 C
TANTALUM CHIP
PTB
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
3/5
CHEMI-CON [ UNITED CHEMI-CON, INC. ]
