Littelfuse QxxxxLTx User Manual

QxxxxLTx Series

Teccor® brand Thyristors

4 / 6 / 8 / 10 / 15 Amp Quadracs

Description

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.

Standard type devices normally operate in Quadrants I & III
triggered from AC line.

Alternistor type Quadracs are used in circuits requiring high
dv/dt capability.

Features & Benefits

Agency Approval

Agency Agency File Number

®

L Package : E71639

Schematic Symbol

MT2 MT1

T

Main Features

Symbol Value Unit

I

T(RMS)

V

/ V

DRM

DIAC V

RRM

BO

4 to 15 A

400 to 600 V

33 to 43 V

t3P)4$PNQMJBOU

t(MBTToQBTTJWBUFE

t4VSHFDBQBCJMJUZVQUP

200 A

junctions

t7PMUBHFDBQBCJMJUZVQUP

600 V

Applications

Excellent for AC switching and phase control applications
such as lighting and heating. Typical applications are AC
solid-state switches, light dimmers, power tools, home/
brown goods and white goods appliances.

Alternistor Quadracs (no snubber required) are used in
applications with extremely inductive loads requiring
highest commutation performance.

Internally constructed isolated package is offered for ease
of heat sinking with highest isolation voltage.

QxxxxLTx Series

169

Specifications are subject to change without notice.

©2013 Littelfuse, Inc

Revised: 09/23/13

Absolute Maximum Ratings

Teccor® brand Thyristors

4 / 6 / 8 / 10 / 15 Amp Quadracs

Value

Symbol Parameter

Qxx04LT: TC = 95°C

I

T(RMS)

RMS forward current

Qxx06LT/Qxx08LT/Qxx10LT: TC = 90°C

Qxx15LT: TC = 80°C

single half cycle; f = 50Hz;

T

(initial) = 25°C

I

TSM

2

tI

I

Peak non-repetitive surge current

2

t value for fusing tp = 8.3ms 12.5 26.5 41 60 166 A2s

J

single half cycle; f = 60Hz;

(initial) = 25°C

T

J

di/dt Critical rate-of-rise of on-state current f = 60Hz; T

I

GM

T

stg

T

J

Note: xx = voltage

Operating junction temperature range -40 to 125 °C

Electrical Characteristics (T

Peak gate current TJ = 125°C 1.5 A

Storage temperature range -40 to 150 °C

= 25°C, unless otherwise specified) – Standard Quadrac

J

Symbol Test Conditions

I

H

dv/dt

dv/dt(c) di/dt(c) = 0.54 x I

t

gt

(1) Reference test circuit in figure 10 and waveform in figure 11; CT = 0.1F with 0.1s rise time.
Note: xx = voltage

IT = 200mA (initial) MAX. 40 50 60 60 70 mA

V

= V

; gate open; TJ=100°C MIN.

D

DRM

= V

V

; gate open; TJ=125°C MIN.

D

DRM

/ ms; TJ = 125°C MIN. 3 4 V/s

T(rms)

400V 75 150 175 200 300

600V 50 125 150 175 200

400V 50 100 120 150 200

600V 50 85 100 120 150

(note 1) TYP. 3 s

Unit

Qxx04LT

Qxx06LT /

Qxx08LT /

Qxx06LTH

Qxx08LTH

Qxx10LT /

Qxx10LTH

Qxx15LT /

Qxx15LTH

4681015A

46 65 83 100 167

55 80 100 120 200

=125°C 50 70 100 A/µs

J

Value

Unit

Qxx04LT

Qxx06LT

Qxx08LT

Qxx10LT

Qxx15LT

V/s

A

Electrical Characteristics (T

= 25°C, unless otherwise specified) – Alternistor Quadrac

J

Symbol Test Conditions

I

H

IT = 20mA (initial) MAX. 50 50 60 70 mA

V

= V

; gate open; TJ=100°C MIN.

D

DRM

dv/dt

V

= V

; gate open; TJ=125°C MIN.

D

DRM

dv/dt(c) di/dt(c) = 0.54 x I

t

gt

(1) Reference test circuit in figure 10 and waveform in figure 11; CT = 0.1F with 0.1s rise time.
Note: xx = voltage

QxxxxLTx Series

(note 1) TYP. 3 s

/ ms; TJ = 125°C MIN. 25 30 V/s

T(rms)

170

Value

Qxx06LTH

Qxx08LTH

Qxx10LTH

400V 575 925

600V 425 775

400V 450 700

600V 350 600

Specifications are subject to change without notice.

Unit

Qxx15LTH

V/s

©2013 Littelfuse, Inc

Revised: 09/23/13

Teccor® brand Thyristors

4 / 6 / 8 / 10 / 15 Amp Quadracs

Trigger DIAC Specifications

Symbol Test Conditions Value Unit

∆V

BO

V

BO

[∆V±] Dynamic Breakback Voltage, forward and reverse (note 1) MIN. 5 V

I

BO

C

T

(1) Reference test circuit in figure 10 and waveform in figure 11.

Static Characteristics

Symbol Test Conditions Value Unit

V

TM

/ I

I

DRM

RRM

Breakover Voltage Symmetry MAX. 3 V

Breakover Voltage, forward and reverse

MIN. 33

MAX. 43

Peak Breakover Current MAX. 25 uA

Trigger Firing Capacitance MAX. 0.1 µF

IT = 1.41 x I

V

/ V

DRM

A; tp = 380s MAX. 1.6 V

T(rms)

TJ = 25°C

RRM

= 100°C 500

J

= 125°C 2000

T

J

MAX.

10

V

µAT

Thermal Resistances

Symbol Parameter Value Unit

Qxx04LT 3.6

R

(J-C)

R

(J-A)

Note : xx = voltage

Junction to case (AC)

Junction to ambient 50 °C/W

Qxx06LT /
Qxx06LTH

Qxx08LT /
Qxx08LTH

Qxx10LT /
Qxx10LTH

Qxx15LT /
Qxx15LTH

3.3

2.8

2.6

2.1

°C/W

QxxxxLTx Series

171

Specifications are subject to change without notice.

©2013 Littelfuse, Inc

Revised: 09/23/13

Teccor® brand Thyristors

4 / 6 / 8 / 10 / 15 Amp Quadracs

Figure 1: Normalized DC Holding Current

vs. Junction Temperature

2.0

1.5

= 25°C)

J

(T

H

1.0

/I

H

Ratio of I

0.5

0.0

-40 -15 10 35 60 85 110

Junction Temperature (T

) -- °C

Figure 3: On-State Current vs. On-State Voltage

(Typical) (6A to 15A)

50

45

TJ = 25°C

40

) – Amps

T

35

30

25

20

15

10

5

Instantaneous On-state Current (i

0

0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7

Instantaneous On-state Voltage (vT) – Volts

Qxx15LT
Qxx15LTH

Qxx06LT/Qxx06LTH
Qxx08LT/Qxx08LTH
Qxx10LT/Qxx10LTH

Figure 2: On-State Current vs. On-State Voltage

(Typical) (4A)

16

TJ = 25°C

14

) – Amps

T

12

10

8

6

4

2

Instantaneo us On-state Curr ent (i

0

0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6

Qxx04LT

Instan taneous On-state V oltage (vT) – Vol ts

Figure 4: Power Dissipation vs. RMS On-State

Current (Typical) (4A)

4.0

3.5

3.0

2.5

2.0

] - (Watts)

D(AV)

[P

1.5

1.0

Average On-S tate Power Dissipation

0.5

0.0

0.0 0.5 1.0 1. 5 2.0 2.5 3.0 3.5 4. 0

RMS On -State Current [I

Qxx04LT

CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360°

] - (Amps)

T(RMS)

Figure 5: Power Dissipation vs. RMS On-State Current

(Typical) (6A to 15A)

18

16

14

12

10

] - (Watts)

8

D(AV)

[P

6

4

2

Average On -State P ower Dissipation

0

024 6810121

QxxxxLTx Series

Qxx06LT/Qxx06LTH
Qxx08LT/Qxx08LTH
Qxx10LT/Qxx10LTH

RMS On -Sta te Curre nt [I

CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360°

] - (Amps)

T(RMS )

Qxx15LT
Qxx15LTH

4 16

Figure 6: Maximum Allowable Case Temperature

vs. RMS On-State Current

130

CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°

Qxx10LT
Qxx10LTH

] - Amps

T(RMS )

Specifications are subject to change without notice.

172

120

110

) - °C

100

C

(T

Qxx04LT

90

Qxx06LT

80

Qxx06LTH

Qxx08LT
Qxx08LTH

Maxim um Allowabl e Case Temperature

70

0246810121

RMS On -Sta te Curre nt [I

Qxx15LT
Qxx15LTH

416

©2013 Littelfuse, Inc

Revised: 09/23/13

Teccor® brand Thyristors

Typical (35V Device)

4 / 6 / 8 / 10 / 15 Amp Quadracs

Figure 7: Surge Peak On-State Current vs. Number of Cycles

1000

Qxx15LT/Qxx15LTH

100

) – Amps

TSM

10

Peak Surge (Non-repetitive)

On-state Current (I

Qxx06LT/Qxx06LTH

1

1 10 100 1000

Qxx10LT/Qxx10LTH

Qxx04LT

Surge Current Duration -- Full Cycles

Note: xx = voltage

Figure 8: DIAC VBO Change vs. Junction Temperature

6%

4%

2%

0%

Change -- %

-2%

BO

V

-4%

-6%

-8%

-40 -20 0 20 40 60 80 100 120 140

Junction Tempera ture (TJ) -- °C

Qxx08LT/Qxx08LTH

Supply Frequency: 60Hz Sinusoidal
Load: Resistive
RMS On-State Current: [I
Value at Specific Case Temperature

Notes:

1. Gate control may be lost during and immediately
following surge current interval.

2. Overload may not be repeated until junction
temperature has returned to steady-state
rated value.

Figure 9: Test Circuit

R

L

120 V
60 Hz

V

C

]: Maximum Rated

T(RMS)

D.U.T.

MT2

T

C

T

= 0.1 μF

MT1

Figure 10: Test Circuit Waveform

V

C

+V

QxxxxLTx Series

BO

0

-V

BO

I

L

+I

PK

0

-I

PK

Typical pulse base width is 10μs

ΔV+

Figure 11: Peak Output Current vs Triggering

Capacitance (Per Figure 9)

300

250

) – mA

t

ΔV-

t

173

PK

200

150

100

Peak Output Current (I

50

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Triggering Capacitance (CT) – μF

Specifications are subject to change without notice.

©2013 Littelfuse, Inc

Revised: 09/23/13

Soldering Parameters

R

do

Teccor® brand Thyristors

4 / 6 / 8 / 10 / 15 Amp Quadracs

Reflow Condition 1Co'SFFBTTFNCMZ

Pre Heat

- Temperature Min (T

- Temperature Max (T

) 150°C

s(min)

) 200°C

s(max)

- Time (min to max) (ts) oTFDT

Average ramp up rate (Liquidus Temp)
(TL) to peak

T

to TL - Ramp-up Rate 5°C/second max

S(max)

Reflow

- Temperature (TL) (Liquidus) 217°C

- Temperature (tL) oTFDPOET

Peak Temperature (TP) 260°C

Time within 5°C of actual peak
Temperature (tp)

5°C/second max

+0/-5

oTFDPOET

Ramp-down Rate 5°C/second max

Time 25°C to peak Temperature (TP) 8 minutes Max.

Do not exceed 280°C

Physical Specifications

Terminal Finish 1005 Matte Tin-plated

Body Material

UL Recognized epoxy meeting
flammability classification 94v-0

Lead Material Copper Alloy

Design Considerations

Careful selection of the correct device for the application’s
operating parameters and environment will go a long way
toward extending the operating life of the Thyristor. Good
design practice should limit the maximum continuous
current through the main terminals to 75% of the device
rating. Other ways to ensure long life for a power discrete
semiconductor are proper heat sinking and selection of
voltage ratings for worst case conditions. Overheating,
overvoltage (including dv/dt), and surge currents are
the main killers of semiconductors. Correct mounting,
soldering, and forming of the leads also help protect
against component damage.

t

T

P

T

L

T

S(max)

Temperature

T

S(min)

25

Ramp-up

Ramp-up

PreheatPreheat

t

S

time to peak temperature

P

t

L

Ramp-down

amp-

Time

Environmental Specifications

Test

High Temperature
Voltage Blocking

Temperature Cycling

Biased Temperature &
Humidity

High Temp Storage

Low-Temp Storage -40°C, 1008 hours

Thermal Shock

Autoclave
(Pressure Cooker Test)

Resistance to
Solder Heat

Solderability ANSI/J-STD-002, Category 3, Test A

Lead Bend MIL-STD-750: Method 2036, Condition E

Specifications and Conditions

MIL-STD-750: Method 1040, Condition A
Rated V
hours

(VAC-peak), 125°C, 1008

DRM

MIL-STD-750: Method 1051

-40°C to 150°C, 15-minute dwell,
100 cycles

EIA/JEDEC: JESD22-A101
320VDC, 85°C, 85%RH, 1008 hours

MIL-STD-750: Method 1031
150°C, 1008 hours

MIL-STD-750: Method 1056
0°C to 100°C, 5-minute dwell,
10-second transfer, 10 cycles

EIA/JEDEC: JESD22-A102
121°C, 100%RH, 2atm, 168 hours

MIL-STD-750: Method 2031
260°C, 10 seconds

QxxxxLTx Series

174

Specifications are subject to change without notice.

©2013 Littelfuse, Inc

Revised: 09/23/13

Teccor® brand Thyristors

4 / 6 / 8 / 10 / 15 Amp Quadracs

Dimensions — TO-220AB (L-Package) — Isolated Mounting Tab

T

MEASURING POINT

C

E

C

D

G

A

B

F

R

L

H

K

J

MT1

MT2

T (Trigger)

O

P

AREA (REF.)

2

0.17 in

N

M

Note: Maximum torque
to be applied to mounting tab
is 8 in-lbs. (0.904 Nm).

8.13
.320

13.36
.526

7. 0 1
.276

Dimension

Inches Millimeters

Min Max Min Max

A 0.380 0.420 9.65 10.67

B 0.105 0.115 2.67 2.92

C 0.230 0.250 5.84 6.35

D 0.590 0.620 14.99 15.75

E 0.142 0.147 3.61 3.73

F 0.110 0.130 2.79 3.30

G 0.540 0.575 13.72 14.61

H 0.025 0.035 0.64 0.89

J 0.195 0.205 4.95 5.21

K 0.095 0.105 2.41 2.67

L 0.060 0.075 1.52 1.91

M 0.085 0.095 2.16 2.41

N 0.018 0.024 0.46 0.61

O 0.178 0.188 4.52 4.78

P 0.045 0.060 1.14 1.52

R 0.038 0.048 0.97 1.22

Product Selector

Part Number

400V 600V 800V 1000V

Qxx04LT X X Quadrac TO-220L

Qxx06LT X X Quadrac TO-220L

Qxx06LTH X X Alternistor Quadrac TO-220L

Qxx08LT X X Quadrac TO-220L

Qxx08LTH X X Alternistor Quadrac TO-220L

Qxx10LT X X Quadrac TO-220L

Qxx10LTH X X Alternistor Quadrac TO-220L

Qxx15LT X X Quadrac TO-220L

Qxx15LTH X X Alternistor Quadrac TO-220L

Note: xx = Voltage

Voltage

Type Package

QxxxxLTx Series

175

Specifications are subject to change without notice.

©2013 Littelfuse, Inc

Revised: 09/23/13

Teccor® brand Thyristors

4 / 6 / 8 / 10 / 15 Amp Quadracs

Packing Options

Part Number Marking Weight Packing Mode Base Quantity

Qxx04LT

Qxx04LTTP Qxx04LT 2.2 g Tube 500 (50 per tube)

Qxx06LT Qxx06LT 2.2 g Bulk 500

Qxx06LTTP Qxx06LT 2.2 g Tube 500 (50 per tube)

Qxx06LTH Qxx06LTH 2.2 g Bulk 500

Qxx06LTHTP Qxx06LTH 2.2 g Tube 500 (50 per tube)

Qxx08LT Qxx08LT 2.2 g Bulk 500

Qxx08LTTP Qxx08LT 2.2 g Tube 500 (50 per tube)

Qxx08LTH Qxx08LTH 2.2 g Bulk 500

Qxx08LTHTP Qxx08LTH 2.2 g Tube 500 (50 per tube)

Qxx10LT Qxx10LT 2.2 g Bulk 500

Qxx10LTTP Qxx10LT 2.2 g Tube 500 (50 per tube)

Qxx10LTH Qxx10LTH 2.2 g Bulk 500

Qxx10LTHTP Qxx10LTH 2.2 g Tube 500 (50 per tube)

Qxx15LT Qxx15LT 2.2 g Bulk 500

Qxx15LTTP Qxx15LT 2.2 g Tube 500 (50 per tube)

Qxx15LTH Qxx15LTH 2.2 g Bulk 500

Qxx15LTHTP Qxx15LTH 2.2 g Tube 500 (50 per tube)

Note: xx = Voltage

Qxx04LT 2.2 g Bulk 500

DEVICE TYPE

Q: Quadrac

VOLTAGE RATING

40: 400V
60: 600V

CURRENT RATING

04: 4A
06: 6A
08: 8A
10: 10A
15: 15A

Q 60 10 L T H 56

PACKAGE TYPE

L: TO-220 (Isolated)

LEAD FORM DIMENSIONS

xx: Lead Form Option

TRIAC TYPE

(blank): Standard Triac
H: Alternistor Triac

Trigger

T: Internal Diac (33V – 43V)

Part Marking SystemPart Numbering System

TO-220 AB - (L Package)

Q6010LTH

YMXXX

®

Date Code Marking

Y:Year Code
M: Month Code
XXX: Lot Trace Code

QxxxxLTx Series

176

Specifications are subject to change without notice.

©2013 Littelfuse, Inc

Revised: 09/23/13