Features

n

MiniatureThermalCutoff(TCO)device

n

Surfacemount,smallestbodysize

n

Overtemperatureandovercurrentprotection

n

Controlsabnormal,excessivecurrent

virtuallyinstantaneously,uptoratedlimits

n

Widerangeoftemperatureoptions

n

Highcorrosionresistance

n

Twoheightoptions:lowprofile&highforce

withstand

Applications

n

-NotebookPCs

-TabletPCs

-Smartphones

n

notebookACadapters)

-Electroniccigarettes

-Medicalheaters***

* RoHSDirective2002/95/ECJan.27,2003includingannexandRoHSRecast2011/65/EUJune8,2011.

** Bournsconsidersaproducttobe“halogenfree”if(a)theBromine(Br)contentis900ppmorless;(b)theChlorine(Cl)contentis900ppmorless;and(c)thetotalBromine(Br)

andChlorine(Cl)contentis1500ppmorless.

***Excludinglife-saving,life-criticalorlife-sustainingapplications.

Specificationsaresubjecttochangewithoutnotice.

Usersshouldverifyactualdeviceperformanceintheirspecificapplications.

Ratings

Agency Recognition

Description

UL, cUL

File Number: E215638

(UL 60730)

TUV

File Number: R 50411018 0001~0002

(EN 60730 2-9-2010)

How to Order

SC 77 A A B

Series Designator

Trip Temperature (±5 °C)

• 72

• 77

• 82

• 85

Arm Material

A = Cu Alloy, High current type

Body Material

A = PPS

Body Thickness

A = 1.07 ± 0.05 mm

B = 0.94 ± 0.05 mm

Specification

A-TYPE

SC72AAA,

SC72AAB

SC77AAA,

SC77AAB

SC82AAA,

SC82AAB

SC85AAA,

SC85AAB

Trip Temperature

72 °C ± 5 °C

77 °C ± 5 °C

82 °C ± 5 °C

85 °C ± 5 °C

Reset Temperature

40 °C min.

Contact Rating

DC9 V / 25 A, 6000 cycles

Maximum Breaking Current

DC5 V / 50 A, 100 cycles

Maximum Voltage

DC28 V / 25 A, 100 cycles

Minimum Holding Voltage

3 V @ 25 °C for 1 minute

Maximum Leakage Current

200 mA max. @ 25 °C

Resistance

5 milliohms max.

Mini-breaker TCOs reset when the following conditions are met:

• The ambient temperature has dropped by 10 °C below the minimum trip temperature; and

• Power to the TCO has been cycled (off/on)

4134N

SC

7 7 A

00

Product Structure

Circuit Diagram

NORMALCIRCUIT

CIRCUIT

AFTEROPENING

4.7

(.185)

4.4 +0.25/-0.05

(.173 +.010/-.002)

ARM

TERMINAL

BASE

TERMINAL

COVER

BIMETAL

DISC

ARM

COVER PLATE

BASE

CONTACT

PTC

2.8

(.110)

0.125

(.005)

R

4 PLCS.

4 PLCS.

1.07 ± 0.05

(.042 ± .002) SCxxAAA

0.94 ± 0.05

(.037 ± .002) SCxxAAB

0.08

(.003)

1.71

(.067)

1.71

(.067)

0.5

(.020)

1.54

(.061)

1.49

(.059)

BASE

TERMINALS

ARM

TERMINALS

3.42

(.135)

2.3

(.091)

0.7

(.028)

BASE

TERMINALS

ARM

TERMINALS

0.7

(.028)

• ModelSCxAABisthelowprofile0.94mmheightversion.

• ModelSCxAAAisdesignedwithareinforcedcovertowithstand

higher forces during the USB cable manufacturing injection molding

process.

WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov