Size Code

Resistance (mW)

Coating

L (mm)

W (mm)

T (mm)

D (mm)

2512

0.5 to 0.75

Green

6.35±0.25

3.18±0.35

1.00±0.20

1.93±0.75

2512

1.0 to 20

Green

6.35±0.25

3.18±0.35

0.60±0.20

1.93±0.75

2512

0.50

Black

6.35±0.25

3.18±0.25

1.40±0.20

1.30±0.30

2512

0.75

Black

6.35±0.25

3.18±0.25

1.00±0.20

1.30±0.30

2512

1.00

Black

6.35±0.25

3.18±0.25

0.80±0.20

1.30±0.30

2512

1.50

Black

6.35±0.25

3.18±0.25

0.65±0.20

1.30±0.30

2512

2.00

Black

6.35±0.25

3.18±0.25

0.50±0.20

1.30±0.30

2512

2.50

Black

6.35±0.25

3.18±0.25

1.00±0.20

1.30±0.30

2512

3.00

Black

6.35±0.25

3.18±0.25

0.70±0.20

1.30±0.30

2512

3.50

Black

6.35±0.25

3.18±0.25

0.71±0.20

1.30±0.30

2512

4.00

Black

6.35±0.25

3.18±0.25

0.60±0.20

1.30±0.30

2512

4.50

Black

6.35±0.25

3.18±0.25

0.58±0.20

1.30±0.30

2512

5.00

Black

6.35±0.25

3.18±0.25

0.50±0.20

1.30±0.30

2512

5.50

Black

6.35±0.25

3.18±0.25

0.47±0.20

1.30±0.30

2512

6.00

Black

6.35±0.25

3.18±0.25

0.50±0.20

1.30±0.30

2512

6.50

Black

6.35±0.25

3.18±0.25

0.47±0.20

1.30±0.30

2512

7.00

Black

6.35±0.25

3.18±0.25

0.45±0.20

1.30±0.30

2512

10.0

Black

6.50±0.35

3.20±0.25

0.80±0.15

1.90±0.15

Item

Condition of test

Performance of requirement

Black Coating

Green Coating

Temperature

Coefficient of

Resistance

(According to JIS C 5202 item 5.2)

Measure resistance at +25℃ as R₀, then measure at -55℃ and +125 ℃respectively as R.

Determine the temperature characteristic of resistance by the following formula.

     T.C.R.= (ppm/℃)

Where t₀=+25℃or specified room temperature

 t = -55℃  or  +125℃ ± 3℃

As Specification Table

Short-time

Overload

(According to JIS C 5202 item 5.5)

Apply 2.5 times of rated voltage for 5 seconds. Have the specimen stabilized at room temperature for 30 minutes. MeasureΔR/R(%).

±0.5%

±1%

Resistance to

Soldering heat

(According to JIS C 5202 item 6.4)

Immerse the specimen in the solder pot at 260±5℃

for 10 ±1 seconds. Have the specimen stabilized at room temperature for 30 minutes minimum. MeasureΔR/R(%).

±0.5%

±1%

Resistance to

Dry Heat

(According to JIS C 5202 item 7.2)

Place the specimen in the oven at 155±2℃ for 96

hours After the test,have the specimen stabilized at

room temperature for one hour minimum.

MeasureΔR/R(%).

±1%

±1%

Solderability

(According to JIS C 5202 item 6.5)

Dipping the specimen in the solder pot at 245±5℃ for 5±1 seconds. (Solder : Sn 96.5 / Ag 3 / Cu 0.5 )

At least 95% coverage

 (245±5℃, 3sec)

Thermal

Shock

(According to MIL STD 202F Method 107G)

In sequence, place the specimen in the chamber at -55℃ / 25min., 155℃/ 25 min. as a cycle, The transfer time shall not exceed 5 minutes. After 100 cycles the specimen shall be stabilized at room temperature for one hour minimum and then measure the Δ R/R(%).

±0.5%

±1%

Load Life

(According to JIS C 5202 item 7.10)

Place the specimen in the oven at 70±2℃. Apply the rated voltage to the specimen at the 1.5 hours “ON” and 0.5 hour “OFF” cycle. The total time of test is 1000 hours. After the test,have the specimen stabilized at room temperature for one hour minimum and MeasureΔR/R(%).

±1%

±1%

Power Rating

at 80℃

Operating Temp. Range

Resistance Tolerance (±%)

Resistance

 (mΩ)

TCR

(PPM/℃)

2512

1W

-55℃ ~ +170℃

1,3,5

0.5～2.0

50

2512

1W

-55℃ ~ +170℃

1,3,5

2.5～3.0

150

2512

1W

-55℃ ~ +170℃

1,3,5

4.0～5.5

100

2512

1W

-55℃ ~ +170℃

1,3,5

6.0～7.0

75

2512

1W

-55℃ ~ +170℃

1,3,5

10

100

2512

1W

-55℃ ~ +170℃

1,3,5

8.0～20

50

Power Rating

at 80℃

Operating Temp. Range

Resistance Tolerance (±%)

Resistance

 (mΩ)

TCR

(PPM/℃)

2512

2.0W

-55℃ ~ +170℃

1,3,5

0.5～2.0

50

2512

2.0W

-55℃ ~ +170℃

1,3,5

7.0～10.0

50

2512

2.5W

-55℃ ~ +170℃

1,3,5

4.0～6.0

50

2512

3.0W

-55℃ ~ +170℃

1,3,5

3.0

75

2512

3.0W

-55℃ ~ +170℃

1,3,5

1.0～2.0

50

2512

3.0W

-55℃ ~ +170℃

1,3,5

0.5～0.75

100

Resistance

(mΩ)

A

B

W

E

F

P₀

P₁

P₂

ψD₀

T

0.50

3.40±0.1

6.70±0.1

12.0±0.1

1.75±0.1

5.5±0.05

4.0±0.05

4.00±0.1

2.0±0.05

1.50+0.1

1.40±0.1

0.75

3.50±0.1

6.80±0.2

12.0±0.1

1.75±0.1

5.5±0.05

4.0±0.05

4.00±0.1

2.0±0.05

1.50+0.1

1.35±0.1

1～20

3.40±0.1

6.70±0.1

12.0±0.1

1.75±0.1

5.5±0.05

4.0±0.05

4.00±0.1

2.0±0.05

1.50+0.1

0.80±0.1