Type T491 Solid Tantalum Chip Capacitors
Solid Tantalum Chip Capacitors for Surface Mount Applications
The T491 Series’ physical outline and dimen-
sions conform to the global standard for tanta-
lum capacitor chips, and the T491 exceeds the
requirements of EIA standard 535BAAC. T491
chips are specifically for automated surface
mount processes and equipment. The termina-
tions are Tin-Lead (SnPb) and 100% Matte-Tin
terminations are also available. Reliability and
thermal stability are assured by lead-frame at-
tachments to the tantalum pellet made by micro-
processor-controlled welding and a high tem-
perature silver epoxy adhesive. Standard pack-
aging is compatible with all tape-fed placement
units and with EIA RS- 481-1 tape and reel speci-
fication.
Highlights
♦
♦
♦
♦
Low DF and DC Leakage
Temperature Stable
260 ºC for 10 Seconds Soldering
Meets IECQ Standard
QC300801/US0001
♦
Meets EIA Standard 535BAAC
Specifications
Capacitance Range:
Voltage Range:
0.10 µF to 330 µF
4 Vdc to 50 VDC
Tolerance:
±10% standard, ±20% available
–55 ºC to +125 ºC (with proper derating)
–10% @ –55 ºC; +10% @ +85 ºC;
+12% @ +125 ºC
Operating Temperature:
Cap Change From Initial Limit:
DC Leakage:
At 25 ºC — See Ratings
At 85 ºC — 10 x 25 ºC limit
At 125 ºC — 12 x 25 ºC limit
0.1 µF to 1.0 µF — 4%
1.5 µF to 68 µF — 6%
100 µF to 330 µF — 8%
EIA RS-481-1
Dissipation Factor:
Standard Packaging Tape and Reel:
Case
EIA
Qty per
Tape
Code
IECQ
3216L
3528L
3216
7" Reel
2,500
2,500
2,000
2,000
500
Width
8mm
Pitch
4mm
4mm
4mm
4mm
8mm
8mm
8mm
S
T
A
B
C
D
X
8mm
8mm
Complies with the EU Directive
2002/95/EC requirement
restricting the use of Lead (Pb),
Mercury (Hg), Cadmium (Cd),
Hexavalent chromium (Cr(VI)),
PolyBrominated Biphenyls (PBB)
and PolyBrominated Diphenyl
Ethers (PBDE).
3528
8mm
6032
12mm
12mm
12mm
7343
500
500
7343H
13” Reels Available on Special Order
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02744•Ph: (508)996-8561•Fax: (508)996-3830• www.cde.com