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Teccor, Brand thyristors – Littelfuse Qxx10xHx Series User Manual

Page 5

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101

Revised: 09/23/13

©2013 Littelfuse, Inc

Specifications are subject to change without notice.

Teccor

®

brand Thyristors

10 Amp Standard & Alternistor (High Communitation) Triacs

Qxx10xx & Qxx10xHx Series

Figure 7: Maximum Allowable Ambient Temperature

vs. On-State Current

Figure 8: On-State Current vs. On-State Voltage

(Typical)

T

C

= 25 ºC

0

2

4

6

8

10

12

14

16

18

20

0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4

Positive or Negative Instantaneous On-State Voltage

(V

T

) - Volts

Positive or Negative Instantaneous

On-State Current (I

T

) - AMPS

Qxx10Ly
Qxx10Ry

Qxx10LHy

Qxx10RHy

20

30

40

50

60

70

80

90

100

110

120

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

RMS On-State Current [I

T(RMS)

] - AMPS

Max Allowable Ambient Temperature

CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive CONDUCTION
ANGLE: 360º
FREE AIR RATING - NO HEATSINK

(T

A

) - ºC

Figure 9: Surge Peak On-State Current vs. Number of Cycles

1

10

100

1000

1000

100

10

1

Surge Current Duration - Full Cycles

Peak Surge (Non-Repetitive) On-State Current

(I

TSM

) - AMPS

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.