Thyristors
25 Amp Standard & Alternistor (High Commutation) Triacs
RoHS
Qxx25xx & Qxx25xHx Series
Description
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
R oHS compliant Surge capabilit y up
to 250A at 60 Hz
Glass passivated
half cycle
junctions
Agency Approval
V oltage capability up
Agency Agency File Number
to 1000 V
E71639*
* - Only Package Types TO-220L, TO-218K and TO-218J
Applications
Excellent for AC switching and phase control applications
such as heating, lighting, and motor speed controls.
Typical applications are AC solid-state switches, industrial
Main Features
power tools, exercise equipment, white goods and
commercial appliances.
Symbol Value Unit
Alternistor Triacs (no snubber required) are used in
I 25 A
T(RMS)
applications with high inductive loads requiring the highest
V /V 1000 V
DRM RRM
commutation performance.
I 50 or 80 mA
GT
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
2019 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: BO.12/10/20Thyristors
25 Amp Standard & Alternistor (High Commutation) Triacs
Absolute Maximum Ratings Standard Triac
Symbol Parameter Test Conditions Value Unit
Qxx25R5
Tc = 65C
I RMS on-state current Qxx25N5 25 A
T(RMS)
T = 95C
C
Qxx25L5
full cycle; f = 50Hz;
167
Qxx25R5
T (initial) = 25C
J
I Peak non-repetitive surge current Qxx25N5 A
TSM
full cycle; f = 60Hz;
Qxx25L5
200
T (initial) = 25C
J
Qxx25R5
2 2 2
I t I t Value for fusing Qxx25N5 t = 8.3ms 166 A s
p
Qxx25L5
di/dt Critical rate-of-rise of on-state current f = 60Hz; T =125C 100 A/s
J
I Peak gate current t =20s, T =125C 4 A
GTM p J
P Average gate power dissipation T = 125C 0.5 W
G(AV) J
T Storage temperature range -40 to 125 C
stg
Qxx25R5
T Operating junction temperature range Qxx25N5 -40 to 125 C
J
Qxx25L5
Absolute Maximum Ratings Alternistor Triac
Symbol Parameter Test Conditions Value Unit
Qxx25LH5
T = 65C
C
Qxx25L6
Qxx25K6
T = 85C
C
Qxx25J6
I RMS on-state current 25 A
T(RMS)
Qxx25RH5
Qxx25NH5
T = 95C
C
Qxx25R6
Qxx25NH6
full cycle; f = 50Hz;
208
T (initial) = 25C
J
I Peak non-repetitive surge current A
TSM
full cycle; f = 60Hz;
250
T (initial) = 25C
J
2 2 2
I t I t Value for fusing t = 8.3ms 260 A s
p
di/dt Critical rate-of-rise of on-state current f = 60Hz; T =125C 100 A/s
J
I Peak gate current t =20s, T =125C 4 A
GTM p J
P Average gate power dissipation T = 125C 0.5 W
G(AV) J
T Storage temperature range -40 to 125 C
stg
T Operating junction temperature range -40 to 125 C
J
Note: xx = voltage/10
2019 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: BO.12/10/20