1

Revised: January 25, 2013 08:34 AM

©2013 Littelfuse, Inc

Specifications are subject to change without notice.

Please refer to http://www.littelfuse.com for current information.

12 Amp Alternistor Quadrac for LED dimmer applications

Q6012LTH1LED Series

Q6012LTH1LED Series

Description

Main Features

Symbol

Value

Unit

I

T(RMS)

12

A

V

600

V

DIAC V

BO

33 to 43

V

Schematic Symbol

Applications

Excellent for AC switching and phase control applications

such as lighting and motor speed controls. Typical

applications are AC solid-state switches, light dimmers

with LED loads, small low current motor in power tools,

and low current motors in home/brown goods appliances.

Internally constructed isolated package is offered for ease

of heat sinking with highest isolation voltage.

Agency Approval

Agency

Agency File Number

®

L Package : E71639

MT2

MT1

T

RoHS

The Quadrac is an internally triggered Triac designed for

AC switching and phase control applications. It is a Triac

and DIAC in a single package, which saves user expense

by eliminating the need for separate Triac and DIAC

components.

Q6012LTH1LED series is designed to meet low load current

characteristics typical in LED lighting applications.

By keeping holding current at 8mA maximum, this Quadrac

series is characterized and specified to perform best with

LED loads. The Q6012LTH1LED series is best suited for

LED dimming controls to obtain the lowest levels of light

output with a minimum probability of flickering.

Q6012LTH1LED series is offered in the industry standard

TO-220AB package with an isolated mounting tab that

makes it best suited for adding an external heat sink.

Features

• As low as 8mA max

holding current

• UL recognized TO-220AB

package

temperature

• di/dt performance of

• QUADRAC version

includes intergrated DIAC

• Provides full control

of light out put at the

extreme low end of load

conditions.

• 2500V

between mounting tab

and active terminals

• Improves margin of safe

operation with less heat

sinking required

• Enable survivability

of typically LED load

operating characteristics

• Simplicity of circuit design

& layout

Benefits