Thyristors
25 Amp Standard & Alternistor (High Commutation) Triacs
Qxx25xx & Qxx25xHx Series
Description
RoHS
This 25 Amp bi-directional solid state switch series is
designed for AC switching and phase control applications
such as motor speed and temperature modulation controls,
lighting controls, and static switching relays.
Standard alternistor triac components operate with
in-phase signals in Quadrants I or III and ONLY unipolar
negative gate pulses for Quadrant II or III. The alternistor
triac will not operate in Quadrant IV.
Features & Benefits
• RoHS compliant
Agency Approval
Agency
Agency File Number
TO-220L, TO-218K, TO-218J
• Glass – passivated
junctions
• Voltage capability up
to 1000 V
Applications
• Surge capability up
to 250A at 60 Hz
half cycle
Main Features
Symbol
I
T(RMS)
V
DRM
/V
RRM
I
GT
Value
25
1000
50 or 80
Unit
A
V
mA
Excellent for AC switching and phase control applications
such as heating, lighting, and motor speed controls.
Typical applications are AC solid-state switches, industrial
power tools, exercise equipment, white goods and
commercial appliances.
Alternistor Triacs (no snubber required) are used in
applications with high inductive loads requiring the highest
commutation performance.
Internally constructed isolated packages are offered for
ease of heat sinking with highest isolation voltage.
Schematic Symbol
Additional Information
MT2
MT1
Datasheet
Resources
Samples
G
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/16/18
Thyristors
25 Amp Standard & Alternistor (High Commutation) Triacs
Absolute Maximum Ratings – Standard Triac
Symbol
I
T(RMS)
Parameter
RMS on-state current
Qxx25R5
Qxx25N5
Qxx25R5
Qxx25N5
Qxx25R5
Qxx25N5
Test Conditions
T
C
= 85°C
full cycle; f = 50Hz;
T
J
(initial) = 25°C
full cycle; f = 60Hz;
T
J
(initial) = 25°C
t
p
= 8.3ms
f = 60Hz; T
J
=125°C
T
J
= 125°C
T
J
= 125°C
Qxx25R5
Qxx25N5
Value
25
167
A
200
166
100
2
0.5
-40 to 125
-40 to 125
A
2
s
A/μs
A
W
°C
°C
Unit
A
I
TSM
Peak non-repetitive surge current
I
2
t
di/dt
I
GTM
P
G(AV)
T
stg
T
J
I
2
t Value for fusing
Critical rate-of-rise of on-state current
Peak gate current
Average gate power dissipation
Storage temperature range
Operating junction temperature range
Absolute Maximum Ratings – Alternistor Triac
Symbol
Parameter
Qxx25LH5
Qxx25L6
I
T(RMS)
RMS on-state current
Qxx25K6
Qxx25J6
Qxx25RH5
Qxx25NH5
Qxx25R6
Qxx25NH6
Test Conditions
T
C
= 65°C
T
C
= 85°C
Value
Unit
25
A
T
C
= 95°C
full cycle; f = 50Hz;
T
J
(initial) = 25°C
full cycle; f = 60Hz;
T
J
(initial) = 25°C
t
p
= 8.3ms
f = 60Hz; T
J
=125°C
T
J
= 125°C
T
J
= 125°C
208
A
250
260
100
2
0.5
-40 to 125
-40 to 125
A
2
s
A/μs
A
W
°C
°C
I
TSM
I
2
t
di/dt
I
GTM
P
G(AV)
T
stg
T
J
Note: xx = voltage/10
Peak non-repetitive surge current
I
2
t Value for fusing
Critical rate-of-rise of on-state current
Peak gate current
Average gate power dissipation
Storage temperature range
Operating junction temperature range
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/16/18
Thyristors
25 Amp Standard & Alternistor (High Commutation) Triacs
Electrical Characteristics
(T
J
= 25°C, unless otherwise specified)
— Standard Triac
Value
Symbol
Test Conditions
Quadrant
I – II – III
IV
I – II – III
IV
ALL
400V
600V
800V
1000V
MIN.
TYP
.
MAX.
TYP
.
MAX.
TYP
.
MIN.
MAX.
Qxx25R5
Qxx25N5
50
120
1.3
2.5
0.2
100
275
225
200
200
5
4
V/μs
μs
Unit
I
GT
V
GT
V
GD
I
H
dv/dt
V
D
= 12V; R
L
= 60
Ω
V
D
= 12V; R
L
= 60
Ω
V
D
= V
DRM
; R
L
= 3.3 kΩ ; T
J
= 125°C
I
T
= 400mA (initial)
V
D
= V
DRM
; Gate Open; T
J
= 125°C
V
D
= V
DRM
; Gate Open; T
J
= 100°C
mA
V
V
mA
MIN.
V/μs
(dv/dt)c
t
gt
(di/dt)c = 13.3 A/ms; T
J
= 125°C
I
G
= 2 x I
GT
; PW = 15µs; I
T
= 35.4 A
Electrical Characteristics
(T
J
= 25°C, unless otherwise specified)
— Alternistor Triac
Value
Symbol
Test Conditions
Quadrant
Qxx25RH5
Qxx25LH5
Qxx25NH5
MAX.
MAX.
MIN.
MAX.
400V
600V
800V
1000V
MIN.
TYP
.
50
575
500
400
—
20
3
50
1.3
0.2
100
600
600
475
400
30
5
V/μs
μs
Qxx25R6
Qxx25L6
Qxx25NH6
Qxx25K6
Qxx25J6
80
Unit
I
GT
V
GT
V
GD
I
H
dv/dt
V
D
= 12V; R
L
= 60
Ω
V
D
= 12V; R
L
= 60
Ω
V
D
= V
DRM
; R
L
= 3.3 kΩ ; T
J
= 125°C
I
T
= 400mA (initial)
V
D
= V
DRM
; Gate Open; T
J
= 125°C
V
D
= V
DRM
; Gate Open; T
J
= 100°C
I – II – III
I – II – III
I – II – III
mA
V
V
mA
MIN.
V/μs
(dv/dt)c
t
gt
(di/dt)c = 13.3 A/ms; T
J
= 125°C
I
G
= 2 x I
GT
; PW = 15µs; I
T
= 35.4 A
Static Characteristics
Value
Qxx25R5
Qxx25N5
Qxx25xH5
Qxx25x6
Qxx25NH6
MAX.
T
J
= 25°C
I
DRM
/ I
RRM
V
DRM
/ V
RRM
T
J
= 100°C
T
J
= 125°C
Note: xx = voltage/10, x = package
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/16/18
Symbol
Test Conditions
Unit
V
TM
I
T
= 35.4A; t
p
= 380 μs
600 – 800V
1000V
600 – 800V
1000V
600 – 800V
1.8
10
20
V
MAX.
500
1000
2000
μA
Thyristors
25 Amp Standard & Alternistor (High Commutation) Triacs
Thermal Resistances
Symbol
Parameter
Qxx25R5 / Qxx25N5
Qxx25R6 / Qxx25NH6
Qxx25RH5 / Qxx25NH5
Qxx25L6 / Qxx25LH5
Qxx25K6 / Qxx25J6
R
θ(J-A)
Note: xx = voltage/10, y = sensitivity
Value
0.89
2.0
1.32
45
50
Unit
R
θ(J-C)
Junction to case (AC)
°C/W
Junction to ambient
Qxx25Ry
Qxx25L6 / Qxx25LH5
°C/W
Figure 1: Normalized DC Gate Trigger Current
vs. Junction Temperature
2.5
Figure 2: Normalized DC Gate Trigger Voltage
vs. Junction Temperature
2.0
2.0
Ratio of V
GT
/ V
GT
(T
J
= 25ºC)
Ratio of I
GT
/I
GT
(T
J
= 25°C)
1.5
1.5
1.0
1.0
0.5
0.5
0.0
-40
-15
10
35
60
85
110
0.0
125
-40
-15
10
35
60
85
110
125
Junction Temperature (T
J
) -- (°C)
Junction Temperature (T
J
) -- (ºC)
Figure 3: Normalized DC Holding Current
vs. Junction Temperature
2.0
Figure 4: On-State Current vs. On-State
Voltage (Typical)
90
Instantaneous On-state Current (i
T
) – Amps
80
70
60
50
40
30
20
10
0
T
J
= 25°C
Ratio of I
H
/ I
H
(T
J
= 25ºC)
1.5
Qxx25P5/Qxx25R6
Qxx25L6/Qxx25NH6
Qxx25K6/Qxx25J6
Qxx25RH5/Qxx25LH5
Qxx25NH5
1.0
0.5
Qxx25R5
Qxx25N5
0.0
-40
-15
10
35
60
85
110
125
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
Junction Temperature (T
J
) -- (ºC)
Instantaneous On-state Voltage (v
T
) – Volts
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/16/18
Thyristors
25 Amp Standard & Alternistor (High Commutation) Triacs
Figure 5: Power Dissipation (Typical) vs. RMS
On-State Current
35
Figure 6: Maximum Allowable Case Temperature
vs. RMS On-State Current
130
30
25
Maximum Allowable Case Temperature
(T
C
) - °C
Average On-State Power Dissipation
[P
D(AV)
] -- Watts
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360°
Qxx25R5
Qxx25N5
120
110
100
90
80
Qxx25P5
70
60
50
Qxx25R6
Qxx25NH6
Qxx25RH5
Qxx25NH5
Qxx25R5
Qxx25N5
Qxx25K6
Qxx25J6
20
15
Qxx25P5/Qxx25R6
Qxx25L6/Qxx25NH6
Qxx25K6/Qxx25J6
Qxx25RH5/Qxx25LH5
Qxx25NH5
Qxx25L6
Qxx25LH5
10
5
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360°
0
5
10
15
20
25
30
0
0
5
10
15
20
25
RMS On-State Current [I
T(RMS)
] -- Amps
RMS On-State Current [I
T(RMS)
] - Amps
Figure 7: Maximum Allowable Ambient Temperature vs. RMS On-State Current (TO-220 packages only)
120
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360°
FREE AIR RATING
Maximum Allowable Ambient Temperature
(T
A
) --°C
100
80
60
40
20
0
0.0
0.5
1.0
1.5
2.0
2.5
RMS On-State Current [I
T(RMS)
] -- Amps
Figure 8: Surge Peak On-State Current vs. Number of Cycles
1000
Peak Surge (Non-repetitive)
On-state Current (I
TSM
) – Amps
Qxx25P5/Qxx25R6
Qxx25L6/Qxx25NH6
Qxx25K6/Qxx25J6
Qxx25RH5/Qxx25LH5
Qxx25NH5
SUPPLY FREQUENCY: 60 Hz Sinusoidal
LOAD: Resistive
RMS On-State Current: [I
T(RMS)
]: Maximum Rated Value at
Specified 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.
100
Qxx25R5
Qxx25N5
10
1
10
100
1000
Surge Current Duration -- Full Cycles
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/16/18
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