NEW PRODUCT BRIEF

Bourns® Mini-Breaker Thermal Cutoff Device (TCO) Model SD and AD Series

10/17 • e/T1714

www.bourns.com

COPYRIGHT© 2023 • BOURNS, INC. • 03/23 • e/KLM2215

"Bourns" is a registered trademark of Bourns, Inc. in the U.S. and other countries.

Asia-Pacific: Tel +886-2 256 241 17

Email asiacus@bourns.com

Americas: Tel +1-951 781-5500

Email americus@bourns.com

EMEA: Tel +36 88 885 877

Email eurocus@bourns.com

SD Series

AD Series

Product Structure

Circuit Diagram

PRODUCT OVERVIEW

PRODUCT DIMENSIONS

COVER

ARM

COVER PLATE

ARM

TERMINAL

BASE

TERMINAL

BASE

CONTACT

BIMETAL

DISC

PTC

COVER

ARM

COVER PLATE

ARM

TERMINAL

BASE

TERMINAL

BASE

CONTACT

BIMETAL

DISC

A-type

NORMAL CIRCUIT

CIRCUIT

AFTER OPENING

NORMAL CIRCUIT

CIRCUIT

AFTER OPENING

W-type

A-type

W-type

6.95

(.274)

1.7

(.067)

2.5

(.098)

2.5

(.098)

3.75

(.148)

1

(.039)

1

(.039)

1.7

(.067)

0.1 ± 0.01

(.004 ± .0004)

0.08 +0.10/-0.08

(.003 +.004/-.003)

1.4 ± 0.05

(.055 ± .002)

0.1 ± 0.01

(.004 ± .0004)

DIMENSIONS:

MM

(INCHES)

GENERAL

TOLERANCE:

±0.1

(±.004)

6.95

(.274)

2.5

(.098)

3.75

(.148)

2.7

(.106)

2.7

(.106)

0.1 ± 0.01

(.004 ± .0004)

0.08

(.003)

1.4 ± 0.05

(.055 ± .002)

0.1 ± 0.01

(.004 ± .0004)

2.5

(.098)

DIMENSIONS:

MM

(INCHES)

GENERAL

TOLERANCE:

±0.1

(±.004)

6.95

(.274)

1.7

(.067)

2.5

(.098)

2.5

(.098)

3.75

(.148)

1

(.039)

1

(.039)

1.7

(.067)

0.1 ± 0.01

(.004 ± .0004)

0.08 +0.10/-0.08

(.003 +.004/-.003)

1.4 ± 0.05

(.055 ± .002)

0.1 ± 0.01

(.004 ± .0004)

DIMENSIONS:

MM

(INCHES)

GENERAL

TOLERANCE:

±0.1

(±.004)

6.95

(.274)

2.5

(.098)

3.75

(.148)

2.7

(.106)

2.7

(.106)

0.1 ± 0.01

(.004 ± .0004)

0.08

(.003)

1.4 ± 0.05

(.055 ± .002)

0.1 ± 0.01

(.004 ± .0004)

2.5

(.098)

DIMENSIONS:

MM

(INCHES)

GENERAL

TOLERANCE:

±0.1

(±.004)

5 3 1

2 2 A

1 0

S D 90

A B B

M

4 2 2

2 2 A

0 0

A D 90

A B B

N