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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.

1/05/13

coat insulated, precision coat insulated

and miniature wirewound leaded resistors

Part

Designation

Rated

Ambient

Temperature

Power

Rating

applications and ratings

T.C.R.

(ppm/°C)

Max.

CW1/4

CW1/2

CW1

CW1P

CW2

CW2P

CW3

CW3P

CW5

0.25W

0.5W

1.0W

2.0W

3.0W

1.0W

2.0W

3.0W

5.0W

±250

———

—

—

+25°C

+70°C

±90:

R≥10Ω*

±50: R<10Ω

Operating

Temperature

Range

-40°C

to

+155°C

-55°C

to

+275°C

1 - 100

1 - 390

1 - 390

0.47 - 220

0.47 - 390

0.47 - 390

0.1 - 430

0.1 - 390

0.47 - 15

0.1 - 100

0.1 - 390

0.1 - 390

0.1 - 390

—

0.1 - 390

0.1 - 390

0.1 - 390

0.1 - 390

0.1 - 390

0.1 - 390

E-24, E-96

(C±0.25%)

E-24, E-96

(D±0.5%)

E-24, E-96

(F±1%)

E-24

(G±2%)

E-24

(J±5%)

Resistance Range (Ω)

Derating Curve

environmental applications

100

80

60

40

20

-40

0

4080

120

280

Ambient Temperature

(°C)

0

70

160

275

200240

155

CW

100

80

60

40

20

-100

-50

0

50

100

300

Ambient Temperature

(°C)

0

-55

150

275

200

250

155

CWH

-25

* T.C.R. = 20ppm/°C available on request

0.47 - 15

0.1 - 100

—

—

E-24

(K±10%)

CW1X

CW2X

CW3X

CW1S

1.0W

2.0W

3.0W

1.0W

±500

———

—

—

0.01 - 0.091

0.01 - 0.091

0.01 - 0.091

0.1 - 100

0.01 - 0.091

0.01 - 0.091

0.01 - 0.091

0.1 - 100

±250

———

CW1SS

1.0W

—

10

—

±100

———

CW1H

CW2H

CW3H

1.0W

2.0W

3.0W

—

+25°C

±20: R≥10Ω

±50: R<10Ω

—

0.47 - 220

0.47 - 750

0.47 - 1k

0.1 - 430

—

0.1 - 2k

0.1 - 3k

—

For further information

on packaging, please

refer to Appendix C.

Axial: T26, T52,

T521, T631

Stand-off Axial:

L52A, L52B

Radial: VTP, GT

L forming:

L12.5A, L15A,

L20A, L25A

N forming: N17

ordering information

±2%, ±5%: 2 significant

figures + 1 multiplier

“R” indicates decimal

on value <10Ω

±1%: 3 significant

figures + 1 multiplier

“R” indicates decimal

on value <100Ω

1/4: 0.25W

1/2: 0.5W

1: 1W

2: 2W

3: 3W

5: 5W

H: Stability

Nil: Power

P: Precision

S: Small

X: Power

SS: Small type,

UL Approved

C: SnCu

C: ±0.25%

D: ±0.5%

F: ±1%

G: ±2%

J: ±5%

K: ±10%

CW

1/2

P

C

Style

Type

Power

Rating

Nominal

Resistance

Tolerance

Termination

Material

Taping and

Forming

New Part #

T52

103

A: Ammo

R: Reel

TEB:

Embossed

plastic

(N forming)

Packaging

A

F

100

80

60

40

20

-40

0

4080120280

Ambient Temperature

(°C)

0

25

160

275

200240

155

CWP

For resistors operated at an ambient temperature of 25°C or above, a power rating shall be derated in accordance with the above derating curve.