LRMAM0815-R01JT5 datasheet(2/3 Pages) ETC2

2 / 3 page

Low Resistance

Metal Alloy Resistor

LRMA Series

www.bitechnologies.com www.irctt.com www.welwyn-tt.com

General Note

TT electronics reserves the right to make changes in product specification without notice or liability.

All information is subject to TT electronics’ own data and is considered accurate at time of going to print.

09. 11

Low Resistance Metal Alloy Resistor

LRMA Series

Temperature Derating

20%

40%

60%

80%

100%

-30

120

170

Ambient Temperature (°C)

Typical Temperature Rise

100

120

20%

40%

60%

80%

100%

Proportion of Pr

Joint

Hot spot

Construction

Marking

The components are marked with ohmic value, e.g. “R002” = 2mΩ, “R010” = 10 mΩ.

Solvent Resistance

The component is resistant to all normal industrial cleaning solvents suitable for printed circuits.

Performance Data

Maximum (%)

Typical (%)

Load at rated power (cyclic load, 1000 hours at 70C)

±R

0.3

Short term overload (5 x rated power for 5s)

±R

0.5

0.15

Humidity (1000 hours, 85°C, 85%RH)

±R

0.5

0.15

Temperature cycle (-40 to +125°C, 1000 cycles, 15 minute dwell)

±R

0.5

0.15

Resistance to solder heat (260°C ±5°C for 20s ±1s)

±R

0.5

0.3

Solderability (245°C ±5°C for 2s ±0.5s)

>95% coverage

Dry heat (1000 hours at 170C)

±R

0.5

0.3

Low temperature storage (1000 hours at -55°C)

±R

0.5

0.15

Substrate bending (board 1.6mm, fulcrum spacing 90mm, deflection 2mm)

±R

0.5

0.3

Insulation resistance (1 minute @ 100Vdc)

>100M

Thermal Performance & Mounting

Reference Pad Dimensions (mm)

Size

1206

1.8

1.9

1.4

0815

7.9

1.5

0.9

2512 ≤R002

4.0

3.1

1.3

2512 >R002

4.0

2.1

4.1

General Note

08/10

Welwyn Components reserves the right to make changes in product specification without notice or liability

All information is subject to Welwyn’s own data and is considered accurate at time of going to print.

Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK

Telephone: +44 (0) 1670 822181  Facsimile: +44 (0) 1670 829465  Email: info@welwyn-tt.com  Website: www.welwyn-tt.com

Copper electrode with

nickel then tin plating

Coating (UL94-V0)

Low TCR

resistance alloy plate

The temperature rise shown is highly

dependent on mounting conditions.

Reference conditions assume 20

copper with thermal vias to multiple

layers.

The self-heating in the current tracks

should be kept negligible, or allowed

for by temperature derating.

Sense

Current

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