RCR

anti-surge power type leaded resistor

Derating Curve

environmental applications

100

80

60

40

20

-60

-40

0

406080100160

70

20

Ambient Temperature

(°C)

0

-55

120

155

-20

140

PMS 300 neg.

Black neg.

Notice of Surge Load

Surge withstanding load voltage for the resistors cannot be guarantee when

the undermentioned 4 items get to a remarkable overload in comparison

with the conditions shown by surge withstanding voltage in Anti-surge

characteristics. Please contact KOA in advance if such a case is anticipated.

1. Peck voltage to be applied

2. Pulse width

3. Conditions of protecting insulation around the resistor

4. Situation of proximity conductivity object

For example: In the figure, a metal wire is placed

less than 5mm away from the resistor body,

there is such a case that causes an electric

discharge by a surge load 10kV and then

destroys the outer coating.

Discharge

10kV

About 5mm

Metal Wire

Resistance

Measuring points are 10mm ± 1mm from the end cap

Within regulated tolerance

—

Resistance to Solder Heat

260°C ± 5°C, 10 seconds ± 1 second or 350°C ± 10°C,

3.5 seconds ± 0.5 seconds

1

0.5

Terminal Strength

Twist 360°, 5 times

No mechanical damage

—

Rapid Change of Temperature

-55°C (30 minutes)/+155°C (30 minutes), 5 cycles

1

0.5

Endurance @ 70°C

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

5

2.5

Surge Withstanding

10

2.5

Moisture Resistance

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

RCR16, 25, 50 (+), 60: W; RCR75, 100: Wx0.1

5

2.5

EN60065 Test

(RCR50EN, RCR60 only)

Discharge test: 10kV, 1000pF capacitor discharge pulse,

50 times (1 pulse/5 seconds maximum)

20

—

Resistance to Solvent

Isopropyl alcohol with ultrasonic washing, 2 minutes

Discharge test: 2kV - 10kV, 0.01µF capacitor discharge

pulse, 10 times (1 pulse/5 seconds maximum)

No visible damage to protective coating

and marking

—

Overload

Rated voltage x 2.5 or maximum overload voltage

for 5 seconds, whichever is less

1

0.5

T.C.R.

Room temperature/100°C up

—

Performance Characteristics

Parameter

Requirement

∆ R ±(% + 0.05Ω)

Limit

Typical

Test Method

100k

Ω - 5.1MΩ

Resistance Range

T.C.R.

±200ppm/°C

100k

Ω - 33MΩ

±350ppm/°C

3.3

Ω - 91kΩ

±500ppm/°C

100k

Ω - 33MΩ

±350ppm/°C

100k

Ω - 56MΩ

±350ppm/°C

RCR50 (+)

RCR60

RCR75

RCR16

RCR25

Type

100k

Ω - 33MΩ

±350ppm/°C

RCR50EN

100k

Ω - 100MΩ

±350ppm/°C

470k

Ω - 33MΩ

±350ppm/°C

RCR100

RCR50EN,

RCR60, RCR75,

RCR100

10kV

RCR25

3kV

RCR16

Type

Applied

Voltage

2kV

RCR50, RCR50+

3.3

Ω - 6.2Ω: 10kV

6.8

Ω - 10Ω: 7kV

11

Ω - 9.1kΩ: 5kV

10k

Ω - 91kΩ: 7kV

100k

Ω-33MΩ:10kV

115

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.

3/06/07

1733 Reader's Spreads pg1-203:document

1/27/09

4:09 PM

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