PSI/PSE

chip type power shunt resistor

Operating

Temperature

Range

Rated

TerminalPart

Temperature

F:±1%

Resistance

Range

Part

Designation

Power

Rating

T.C.R.

(ppm/°C)

Max.

applications and ratings

PSI

3W*

PSE

5W*

±50

3mΩ, 4mΩ

-65°C to +155°C

+105°C

* A power rating shall be guaranteed with a method shown in the item. Please inquire before you order and/or use.

DeratingCurve

environmental applications

100

80

60

40

20

-60 -40 -20 0

40 60 80100

140

105

20

Terminal Part Temperature

(°C)

0

-65

120

155

PerformanceCharacteristics

Parameter

Requirement∆R±%

Limit

Typical

TestMethod

Overload (Short time)

15W for 5 seconds

±0.2%: PSI

±0.5%: PSE

±0.1%: PSI

±0.2%: PSE

Resistance to Solder Heat

260°C ± 5°C, 15 seconds ± 1 second

±0.5%

±0.1%

Rapid Change of Temperature

-55°C (30 minutes), +125°C (30 minutes), 1,000 cycles

±0.5%

±0.2%

Moisture Resistance

85°C ± 2°C, 85% RH, 1000 hours, 10% Bias

±0.5%

±0.2%

Endurance at and Less of

Terminal Part Temperature

Terminal part temperature: 105°C (PSI, PSE (3W), PSE (5W) 0.5m, 1.0m)

+85°C (PSE (5W) 1.5m)

+70°C (PSE (5W) 2.0m),

1000 hours, 1.5 hr ON, 0.5 hr OFF cycle

±1.0%

±0.2%: PSI

±0.6%: PSE

Low Temperature Operation

-65°C, 96 hours

±0.5%

±0.02%: PSI

±0.1%: PSE

High Temperature Exposure

+155°C, 1,000 hours

±1%

±0.4%: PSI

±0.6%: PSE

±150

0.5mΩ, 1.0mΩ

1.5mΩ, 2.0mΩ

J:±5%

––

0.5mΩ, 1mΩ,

1.5mΩ, 2mΩ

0.5mΩ, 1mΩ: +105°C

1.5mΩ: 85°C

2mΩ: +70°C

For resistors operated at a terminal part temperature of described for each size or above, a power rating shall be derated in accordance with the derating curve.

Please refer to “Introduction of the derating curve based on the terminal part temperature” on the beginning of our catalog before use.

100

80

60

40

20

-60 -40 -20 0

40 60 80100

140

105

20

Terminal Part Temperature

(°C)

0

-65

120

155

70 85

2m

0.5m

1m

1.5m

PSE(5W)

PSI(3W)

55

KOASpeerElectronics,Inc. • 199BolivarDrive • Bradford,PA16701 • USA • 814-362-5536 • Fax:814-362-8883 • www.koaspeer.com

Specificationsgivenhereinmaybechangedatanytimewithoutpriornotice.Pleaseconfirmtechnicalspecificationsbeforeyouorderand/oruse.

11/27/14