LR Series Issue May 2009

Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Email: afdsales@irctt.com • Website: www.irctt.com

Low Value Current Sense

Flat Chip Resistor

Environmental Performance

Prefix

LRC - LRF 1206LF - 01 - R020 - F

Model

LR for values > 0.025Ω

LRF for values ≤ 0.025Ω

Size

1206; 1206LF; 2010; 2010LF; 2512; 2512LF

(LF=Lead Free Terminations)

TCR Code

01 = ±100ppm/°C

Resistance Code

4-Digit resistance code. Ex: R050 = 0.050Ω; 1R00 = 1Ω

Tolerance Code

F = ±1%, G = ±2%, J = ±5%

For additional information or to discuss your specific requirements,

please contact our Applications Team using the contact details below.

Pulse and Surge Capability

Average power

dissipationnot to

exceed normal

70°C rating

Surge or Repetitive Pulse Duration

300 µSec

1 mSec

3 mSec

10 mSec

30 mSec

100 mSec

300 mSec

1 Sec

70

50

30

20

10

7

5

3

LRC 2512

2 watts

LRC 2010

1 watt

LRC 1206

0.5 watts

Power Derating Curve

Power Derating and Pulse/Surge Capability

Ordering Procedure

Recommended Solder Pad Layout

A

B

C

.

M

I

D6

0

2

1

R

L0

1

0

2

R

L2

1

5

2

R

L

A

.

n

i0

8

0

.

00

2

1

.

05

4

1

.

0

m

m)

0

.

2

()

5

0

.

3

()

7

.

3

(

B

.

n

i0

6

1

.

05

5

2

.

05

0

3

.

0

m

m)

0

.

4

()

5

.

6

()

5

7

.

7

(

C

.

n

i0

5

0

.

00

6

0

.

00

6

0

.

0

m

m)

5

2

.

1

()

5

.

1

()

5

.

1

(

25°

70°

150°

100

50

10

Temperature in °C

Environmental Test

Test Method

Typical Performance

Thermal Shock

MIL-STD-202 Method 107G

Condition B, -55°C +150°C, 100 cycles

±0.5% + 1.0mΩ

Short Time Overload

6.25X Rated Power for 5 seconds

±0.5% + 0.5mΩ

High Temperature Exposure

100 hours @150°C

±0.5% + 0.5mΩ

Dielectric Withstanding Voltage

MIL-STD-202, Method 301

2.5X Rated Voltage, 1 minute

±0.25% + 0.5mΩ

Moisture Resistance

MIL-STD-202 Method 106

±0.5% + 0.5mΩ

Load Life

1000 hours, Rated Power, 70°C

1.5 hours on, 30 minutes off

±1.0% + 0.5mΩ

Low Temperature Operation

1 hour -65°C followed by rated power for 45 min

±0.5% + 0.5mΩ

Resistance to Solder Heat

MIL-STD-202 Method 210

260°C, 10 seconds

±0.5% + 1.0mΩ

Insulation Resistance

MIL-STD-202 Method 302

100VDC, 1 minute

>1000 megohms

Solderability

MIL-STD-202 Method 208

245°C, 5 seconds

95% min Coverage