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Strips
■ Copper alloy 
As the top manufacturer of copper alloy for connector use, DOWA METALTECH, provides high-performance, high-quality, and high cost performance copper alloy.

Copper alloy line-up

C7025 C1020 DSC3N C19720 DK-3 C194 NB-105 NB-109 NB-115 NB-164 AD442 C2600 C7035-TM C7025 YCuT-M YCuT-FX YCuT-F C7025-TM C7035-XE/XS
 ■ Tin-plating
  Plating structure Features Main uses
Reflow Tin Plating (Cu underlay) / Reflow tin Low contact resistance
Good resistance to whiskers 		Connector for automobile electrical components
General connector bus bars
Advanced Reflow Tin Plating STAR (Super Thin Advanced Reflow) New barrier layer / Reflow tin Excellent heat resistance (low contact resistance following heat cycle endurance aging)
Lower insertion resistance(STAR)
High solderability(Pb free)
High resistance to whiskers
Global supply (Japan, USA, Europe)		 Connector for automobile electrical components
Multipolar connector for PCB
Connector for large currents such as HEV use
Relay
Bus bar
 

Nickel alloy line-up

Electrode materials
 ■ Nickel alloy
For reference only.
  Material Name Chemical Composition (%) Temper Mechanical Properties DC Magnetic Properties
Ni Fe Mo Tensile Strength
N/mm²		 Elongation
%		 Hardness
Hv		 Initial Permeability
μi		 Maximum Permeability
μmax		 Coersive Force
Hc A/m
Leadframe Material 42%Ni-Fe 41 Bal. — A ≧590 ≧30 120–160 — — —
1/4H 450–600 10-30 140–180
3/8H 540–650 10-30 160–200
1/2H 590–735 ≧3 180–220
Soft Magnetic Material 42%Ni-Fe 41 Bal. — A — — 120–160 ≧2,500 ≧25,000 ≦16
1/2H — — 170–210
YFN-45
(45%Ni-Fe)		 45 Bal. — A — — 120–160 ≧3,000 ≧30,000 ≦16
1/2H — — 180–220
R — — 200–250
YMPC
(80%Ni-5.3%Mo-Fe)		 80 Bal. 5.3 A — — 140–170 ≧30,000 ≧100,000 ≦2
1/2H — — 180–250
R — — 290–350
Corrosion-resistant Material Pure Nickel ≧99.0% — — A 340–490 ≧25 80–125 — — —
1/4H 340–490 15–35 100–160
1/2H 390–590 ≧2 140–190
H 440–640 1–15 170–210
 ■ Electrode materials
Material Name JIS Format   Tensile Strength
N/mm²		 Elongation
%		 Hardness
HV		 Electrical Conductivity
%
YCC Class 2 Rods <φ25
≧φ25		 ≧450
≧410		 ≧15
≧15		 ≧140
≧126		 ≧75
Plates <25mm
≧25mm		 ≧410
≧380		 ≧15
≧15		 ≧114
≧105
YBC Class 3 Rods   ≧685 ≧9 ≧200 ≧45
Wheels & plates   ≧590 ≧9 ≧200
 ■ Copper strips and brass strips
We also produce copper strips (C1020, C1100, C1220) and brass strips (C2600, C2680).
 
  Material Name
(CDA No.)		 Chemical Composition
(wt%)		 Electrical Conductivity
(%IACS)		 Temper Thickness
(mm)		 Tensile Strength
(N/mm²)		 Elongation
(%)		 Hardness
(HV)
Copper C1020 Cu: 99.96– 101 O 0.20–4.00 195– 40– –65
      1/4H 0.20–4.00 210–280 30– 60–100
      1/2H 0.20–3.50 245–315 10– 70–110
      H 0.15–3.50 275– — 90–
C1100 Cu: 99.90– 101 O 0.20–4.00 195– 40– –65
      1/4H 0.20–4.00 210–280 30– 60–100
      1/2H 0.20–3.50 245–315 10– 70–110
      H 0.15–3.50 275– — 90–
C1220 Cu: 99.90– 85 O 0.20–4.00 195– 40– –65
  P: 0.025   1/4H 0.20–4.00 210–280 30– 60–100
      1/2H 0.20–3.50 245–315 10– 70–110
      H 0.15–3.50 275– — 90–

Brass

 C2600 Cu: 70.0 28 O 0.20–3.50 275– 40– –90
  Zn: Rem   1/4H 0.20–3.50 350–420 40– 80–110
      1/2H 0.20–3.50 370–440 28– 100–130
      H 0.15–3.00 440–510 10– 140–170
      EH 0.15–3.00 510–580 5– 160–190
      SH 0.15–3.00 610–690 3– 170–200
      ESH 0.15–3.00 620– — 180–
C2680 Cu: 65.0 27 O 0.20–3.50 275– 40– –90
  Zn: Rem   1/4H 0.20–3.50 350–420 40– 80–110
      1/2H 0.20–3.50 370–440 28– 100–130
      H 0.15–3.00 440–510 10– 140–170
      EH 0.15–3.00 510–620 5– 160–190
      SH 0.15–3.00 610–690 3– 170–200
      ESH 0.15–3.00 620– — 180–
This list reflects our standard specifications. Please inquire for details.
     
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