Tantalum Wire, Tantalum Tungsten Alloy Wire (Ta-2.5W, Ta-10W)
Standard: ASTM B365-98
Purity: Ta >99.9% or >99.95%
Tantalum Wire Applications
Tantalum wire is mainly used as anode lead in the tantalum capacitors. It can be used for electrolytic capacitor, electrode, and rectifier. Also, tantalum wire is used to make flakes or sewing thread to mend the destructive tissue.
Tantalum Wire Specifications
Diameter, Inch (mm)
Tolerance, +/-Inch (mm)
0.010~0.020 (0.254~0.508)
0.0005 (0.013)
0.020~0.030 (0.508~0.762)
0.00075 (0.019)
0.030~0.060 (0.762~1.524)
0.001 (0.025)
0.060~0.090 (1.524~2.286)
0.0015 ( 0.038)
0.090~0.125 (2.286~3.175)
0.002 (0.051)
Tantalum Wires for Capacitor Leads
Grade:DTa1,DTa2
Chemical Compositions(Maximum Values, ppm)
Chemical Compositions, Max
Grade
O
C
Si
N
Fe
H
Nb
Ni
W
Mo
Ti
Cr
Ta
DTa1
0.02
0.005
0.003
0.0035
0.0045
0.0015
0.005
0.0025
0.002
0.002
0.0005
0.0025
99.95
DTa2
0.02
0.005
0.003
0.0035
0.0045
0.0015
0.005
0.0025
0.002
0.002
0.0005
0.0025
99.95
Diameter and Tolerance(mm)
Dianmeter
0.13
0.15
0.19
0.20
0.23
0.24
0.25
0.29
0.30
0.35
0.40
0.50
0.60
0.80
1.00
Tolerance
±0.005
±0.006
±0.008
Ellipticity
0.004
0.005
0.006
Number of Bends
Grade
D/mm
The number of bends, not less than
DTa1
0.13-0.4
3
>0.4
4
DTa2
0.13-0.4
4
>0.4
6
Mechanical Properties
State
Tensile Strength(mp)
Elongation(%)
Wire curl
Mid(M)
300-750
10-35
1000
Semi-hard(Y2)
750-1250
1-5
650
Hard(Y)
>1250
1-5
650
Electrical Properties
Current leakage, maximum 0.04uA/cm2
Tantalum wire for wet capacitor Kc=10~12uF•V/cm2
Special requirements to be agreed upon by the supplier and buyer
Tantalum wire for electrical light sources
Chemical Composition
Sizes/tolerance(mm.max)
Φ(0.2-2.0mm)±0.01mm.Φ(2.0-3.0mm)±0.02mm
Grade
Chemical Compositions, Max
C
O
N
H
Nb
Fe
Ti
W
Mo
Si
Ni
Ta
Ta1
0.01
0.03
0.01
0.0015
0.20
0.01
0.01
0.05
0.02
0.05
0.01
Balance
Ta2
0.01
0.03
0.01
0.0015
0.15
0.01
0.01
0.05
0.02
0.05
0.01
Balance
Special requirements to be agreed upon by the supplier and buyer
Packaging of Tantalum Wire
Our Tantalum wire is carefully tagged and labeled externally to ensure clear identification and quality control. We take great care to avoid any damage which may cause during the storage or transportation process.