PSB

chip type power shunt resistor

Rated

TerminalPart

Temperature

Resistance

Tolerance

Resistance

Range

Part

Designation

Operating

Temperature

Range

Power

Rating

T.C.R.

(ppm/°C)

Max.

applications and ratings

PSB

6W*

±75

0.75mΩ, 1mΩ

7W*

±100

0.2mΩ

-65°C to +155°C

+105°C

F: ±1%

* This power rating is guaranteed only for use on an aluminum substrate with the recommended solder pads shown in Appendix E of the part

catalog or the “Pad Dimensions” related information on the KOA Speer web site. Please check with KOA before ordering or using.

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)

0.2m: 35W for 5 seconds

Rated power x 2.5 for 5 seconds

Use our designated aluminum circuit board & heat sink

0.2mΩ: 1.0%

0.75mΩ, 1.0mΩ:

±0.5%

±0.1%

Resistance to Solder Heat

0.75m, 1m: 260°C ± 5°C, 10 seconds ± 1 second

0.2mΩ: 1.0%

0.75mΩ, 1.0mΩ:

±0.5%

±0.2%

Rapid Change

of Temperature

0.2m: -55°C (30 minutes), +125°C (30 minutes), 1,000 cycles

0.75m, 1.0m: -40°C (30 minutes), +125°C (30 minutes), 1,000 cycles

Use our designated aluminum circuit board and heat sink

0.2mΩ: 1.0%

0.75mΩ, 1.0mΩ:

±0.5%

±0.1%

Moisture Resistance

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

0.2mΩ: 1.0%

0.75mΩ, 1.0mΩ:

±0.5%

±0.1%

Endurance at 105°C and Less

of Terminal Part Temperature

Terminal part temperature: 105°C ± 2°C, 1000 hours, 1.5 hr ON,

0.5 hr OFF cycle. Use our designated aluminum circuit board

±1.0%

±0.1%

Low Temperature Operation

-65°C, 96 hours. Use our designated aluminum circuit board

0.2mΩ: 1.0%

0.75mΩ, 1.0mΩ:

±0.5%

±0.1%

High Temperature Exposure

+155°C, 1,000 hours. Use our designated aluminum circuit board

±1%

±0.1%

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.

NEW

53

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

Specificationsgivenhereinmaybechangedatanytimewithoutpriornotice.Pleaseconfirmtechnicalspecificationsbeforeyouorderand/oruse.

11/13/14