Rev Date: 2/26/2021

1

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KAL Series

Aluminum Housed Chassis Mount Resistor

Stackpole Electronics, Inc.

Resistive Product Solutions

Features:

•

Aluminum housing for maximum heat dissipation

•

Complete welded construction

•

10

– 50W tinned copper terminals

•

100

– 250W threaded terminals

•

Centerless ground steatite or alumina cores

•

Molded epoxy body for heat transfer

•

Non-inductive winding available (NKAL)

•

Suitable for electrical component grade wash process and can be conformally coated or potted

•

100% RoHS compliant and lead free without exemption

•

Halogen free

•

REACH compliant

Electrical Specifications

Mechanical Specifications

– KAL/NKAL10, 25, 50

Type

Unit

0.562 ± 0.005

0.625 ± 0.005

0.750 ± 0.031

1.375 ± 0.062

0.420 ± 0.015

0.800 ± 0.015

0.390 ± 0.031

inches

14.27 ± 0.13

15.88 ± 0.13

19.05 ± 0.79

34.93 ± 1.57

10.67 ± 0.38

20.32 ± 0.38

9.91 ± 0.79

mm

0.719 ± 0.005

0.781 ± 0.005

1.062 ± 0.031

1.938 ± 0.062

0.550 ± 0.015

1.080 ± 0.015

0.546 ± 0.031

inches

18.26 ± 0.13

19.84 ± 0.13

26.97 ± 0.79

49.23 ± 1.57

13.97 ± 0.38

27.43 ± 0.38

13.87 ± 0.79

mm

1.563 ± 0.005

0.844 ± 0.005

1.968 ± 0.031

2.781 ± 0.062

0.630 ± 0.015

1.140 ± 0.015

0.610 ± 0.031

inches

39.70 ± 0.13

21.44 ± 0.13

49.99 ± 0.79

70.64 ± 1.57

16.00 ± 0.38

28.96 ± 0.38

15.49 ± 0.79

mm

Type

Unit

0.075 ± 0.010

0.190 ± 0.015

0.093 ± 0.010

0.093 ± 0.005

0.102 ± 0.015

0.086 ± 0.005

0.312 ± 0.062

inches

1.91 ± 0.25

4.83 ± 0.38

2.36 ± 0.25

2.36 ± 0.13

2.59 ± 0.38

2.18 ± 0.13

7.92 ± 1.57

mm

0.088 ± 0.010

0.260 ± 0.015

0.172 ± 0.010

0.125 ± 0.005

0.115 ± 0.015

0.086 ± 0.005

0.438 ± 0.062

inches

2.24 ± 0.25

6.60 ± 0.38

4.37 ± 0.25

3.18 ± 0.13

2.92 ± 0.38

2.18 ± 0.13

11.13 ± 1.57

mm

0.088 ± 0.010

0.300 ± 0.015

0.196 ± 0.010

0.125 ± 0.005

0.107 ± 0.015

0.086 ± 0.005

0.410 ± 0.062

inches

2.24 ± 0.25

7.62 ± 0.38

4.98 ± 0.25

3.18 ± 0.13

2.72 ± 0.38

2.18 ± 0.13

10.41 ± 1.57

mm

N

P

F

G

KAL/NKAL25

C

D

E

L

M

KAL/NKAL10

KAL/NKAL25

KAL/NKAL50

A

B

KAL/NKAL50

H

J

K

KAL/NKAL10

Dielectric

Withstanding

Commercial

MIL

Voltage (VAC)

KAL10

RE-65

12.5

10

1000

0.05 - 30K

KAL25

RE-70

25

20

0.05 - 51.1K

KAL50

RE-75

50

30

0.05 - 150K

KAL100

RE-77

100

75

1 - 500

0.1 - 3K

KAL250

RE-80

250

120

0.1 - 3K

NKAL10

12.5

1000

0.05 - 15K

NKAL25

25

0.05 - 24.9K

NKAL50

50

0.05 - 75K

NKAL100

100

1 - 249

0.1 - 1.5K

NKAL250

250

0.1 - 1.5K

Power Rating (W)

@ 25 °C

2500

TCR (ppm/ºC)

Ohmic Range (

Ω) and Tolerance

1%, 3%, 5%

1 -

0.5%

- 1 K

0.1%

1 K

3000

1

MIL-R-26

Ref.

Type / Code

-

-

1 - 499

1 - 499

-

-

2500

-

-

3000

< 0.1 Ω = ±100 ppm

0.1 Ω - 9.9 Ω = ±50 ppm

10 Ω - 49 Ω = ±30 ppm

> 50 Ω = ±20 ppm