User guide

135
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor
®
brand Thyristors
25 Amp Standard & Alternistor (High Commutation) Triacs
Qxx25xx & Qxx25xHx Series
Figure 5: Power Dissipation (Typical) vs. RMS
On-State Current
Figure 6: Maximum Allowable Case Temperature
vs. RMS On-State Current
0
20
40
60
80
100
120
0.0 0.5 1.0 1.5 2.0 2.5
RMS On-State Current [I
T(R MS)
] -- Amps
Maximum Allowable Ambient Temperature
(T
A
) --°C
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360°
FREE AIR RATING
Figure 7: Maximum Allowable Ambient Temperature vs. RMS On-State Current (TO-220 packages only)
10
100
1000
1 10 100 1000
Surge Current Duration -- Full Cycles
Peak Surge (Non-repetitive)
On-state Current (I
TSM
) – Amps
Qxx25R5
Qxx25N5
Qxx25P5/Qxx25R6
Qxx25L6/Qxx25NH6
Qxx25K6/Qxx25J6
Qxx25RH5/Qxx25LH5
Qxx25NH5
Figure 8: Surge Peak On-State Current vs. Number of Cycles
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.
0
5
10
15
20
25
30
35
0 5 10 15 20 25
RMS On-State Current [I
T(R MS)
] -- Amps
Average On-State Power Dissipation
[P
D(AV)
] -- Watts
Qxx25R5
Qxx25N5
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360°
Qxx25P5/Qxx25R6
Qxx25L6/Qxx25NH6
Qxx25K6/Qxx25J6
Qxx25RH5/Qxx25LH5
Qxx25NH5
50
60
70
80
90
100
110
120
130
RMS On-State Current [I
T(R MS)
] - Amps
Maximum Allowable Case Temperature
(T
C
) - °C
0 5 10 15 20 25 30
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360°
Qxx25R5
Qxx25N5
Qxx25K6
Qxx25J6
Qxx25L6
Qxx25LH5
Qxx25P5
Qxx25R6
Qxx25NH6
Qxx25RH5
Qxx25NH5