LT

linear positive miniature tempco thermistor

Performance Characteristics

Derating Curve

environmental applications

100

80

60

40

20

-20

0

20406080100120140

125

70

Ambient Temperature

(°C)

0

-40

Temperature Characteristics of Resistance

50

40

10

0

-50

-25

0

5075100125

Ambient Temperature

(°C)

-30

-75

4500

30

20

-10

-20

3600

2000

1000

25

Approximate Expression for Resistance-Temperature Characteristics

3600

0.9175

T.C.R.

0.0032

(Values are not guaranteed but typical)

T: Ambient temperature (°C)

4200

4500

0.9026

0.0038

0.8948

0.0041

3900

0.9099

0.0035

189

KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com

Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.

12/29/08

Parameter

Requirement

∆ R ±(% + 0.05Ω)

Limit

Typical

Test Method

Resistance

25°C

Within specified

tolerance

—

Overload (Short time)

Rated voltage x 2.5 for 5 seconds

±1%

±0.75%

Resistance to Solder Heat

260°C ±5°C, 10 seconds ± 1 second

±1%

±0.75%

Rapid Change of Temperature

-40°C (30 minutes), +125°C (30 minutes), 5 cycles

±1%

±0.75%

Moisture Resistance

40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle

±3%

±2%

Endurance at 70°C

70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle

±3%

±2%