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eLibrary > BS IEC 60747-6:2025 Semiconductor devices - Discrete devices. Thyristors >

BS IEC 60747-6:2025 Semiconductor devices - Discrete devices. Thyristors, 2025

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CONTENTS
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions [Go to Page]
3.1 General
3.2 Principal voltages
3.3 Principal currents
Figures [Go to Page]
Figure 1 – Peak values of on-state currents
3.4 Gate voltages and currents
3.5 Power and energy dissipation [Go to Page]
3.5.1 Instantaneous power in a whole period of cycle
Figure 2 – Partial power (dissipation) of reverse blocking triode thyristor in a whole period of cycle [Go to Page]
3.5.2 Average power dissipation
3.5.3 Energy dissipation
Figure 3 – Components of dynamic on-state energy dissipation of reverse blocking triode thyristor in forward state
3.6 On-state, recovery and other characteristics [Go to Page]
3.6.1 On-state characteristics
3.6.2 Recovery times
Figure 4 – Reverse recovery time of reverse blocking triode thyristor
Figure 5 – Off-state recovery time of reverse conducting triode thyristor [Go to Page]
3.6.3 Times and rates of rise characteristics gate controlled turn on
Figure 6 – Circuit commutated turn-off time
Figure 7 – Gate controlled turn-on time [Go to Page]
3.6.4 Times and rates of rise characterizing gate controlled turn off
Figure 8 – Gate controlled turn-off time of turn-off thyristor [Go to Page]
3.6.5 Charges
Figure 9 – Recovered charge
3.7 Mechanical ratings
4 Letter symbols [Go to Page]
4.1 General
4.2 Additional general subscripts
4.3 List of letter symbols
Tables [Go to Page]
Table 1 – Additional general subscripts
Table 2 – Principal voltages (anode-cathode voltages)
Table 3 – Principal currents (anode currents and cathode currents)
Table 4 – Gate voltages and currents
Table 5 – Characteristic time intervals
Table 6 – Power and energy dissipation
5 Essential ratings and characteristics [Go to Page]
5.1 General
5.2 Ratings (limiting values) [Go to Page]
5.2.1 Storage temperature (Tstg)
5.2.2 Operating ambient, case, heatsink or junction temperature (Ta, Tc, Ts or Tvj)
5.2.3 Principal voltages
Table 7 – Other characteristics [Go to Page]
5.2.4 Principal currents
Figure 10 – Peak sinusoidal currents and typical waveform at higher frequencies
Figure 11 – Peak trapezoidal currents and typical waveform at higher frequencies [Go to Page]
5.2.5 Gate voltages, current and power
Figure 12 – Application of gate voltages for thyristors [Go to Page]
5.2.6 Total power dissipation (Ptot)
5.2.7 Frequency ratings
5.2.8 Mechanical ratings
5.3 Characteristics [Go to Page]
5.3.1 General
5.3.2 On-state voltages
5.3.3 On-state characteristics (where appropriate)
5.3.4 Holding current (IH)
5.3.5 Latching current (IL)
5.3.6 Reverse current (IR)
5.3.7 Repetitive peak reverse current (IRRM)
5.3.8 Off-state current (ID)
5.3.9 Repetitive peak off-state current (IDRM)
5.3.10 Gate trigger current (IGT) and gate trigger voltage (VGT)
5.3.11 Gate non-trigger voltage (VGD) and gate non-trigger current (IGD)
5.3.12 Sustaining gate current (IFGsus) (for turn-off thyristors only)
Figure 13 – Forward gate voltage versus forward gate current [Go to Page]
5.3.13 Peak turn-off gate current (IRGQM) (for turn-off thyristors only)
5.3.14 Peak tail current (IZM) (for turn-off thyristors only)
5.3.15 Characteristic time intervals
Figure 14 – Examples of current and voltage waveform during turn off of thyristor under various circuit conditions [Go to Page]
5.3.16 Reverse conducting voltage (VRC) (for reverse conducting thyristor)
5.3.17 Power and energy dissipation
Figure 15 – Curves with total energy dissipation Ep as parameter and sinusoidal current pulse
Figure 16 – Curves with total energy dissipation Ep as parameter and trapezoidal current pulse [Go to Page]
5.3.18 Reverse recovery characteristics (where appropriate)
5.3.19 Thermal resistance
5.3.20 Transient thermal impedance
Figure 17 – Recovered charge Qr, peak reverse recovery current Irrm and reverse recovery time trr (idealized characteristics)
6 Measuring methods [Go to Page]
6.1 General
6.2 Verification of ratings (limiting values) [Go to Page]
6.2.1 Non-repetitive peak reverse voltage (VRSM)
Figure 18 – Circuit diagram for verification of non-repetitive peak reverse voltage [Go to Page]
6.2.2 Non-repetitive peak off-state voltage (VDSM)
Figure 19 – Circuit diagram for verification of non-repetitive peak off-state voltage [Go to Page]
6.2.3 Non-repetitive surge on-state current (ITSM)
Figure 20 – Circuit diagram for verification of non-repetitive surge on-state current [Go to Page]
6.2.4 On-state current ratings of fast switching thyristor
Figure 21 – Basic circuit diagram and test waveform for verification of sinusoidal on-state current with reverse voltage applied
Figure 22 – Extended circuit diagram for verification of sinusoidal on-state current with reverse voltage applied
Figure 23 – Basic circuit diagram and test waveform for verification of sinusoidal on-state current with reverse voltage suppressed
Figure 25 – Basic circuit diagram and test waveform for verification of trapezoidal on-state current with reverse voltage applied
Figure 26 – Basic circuit diagram and test waveform for verification of trapezoidal on-state current with reverse voltage suppressed [Go to Page]
6.2.5 Critical rate of rise of on-state current (di/dtcr)
Figure 27 – Circuit diagram for verification of critical rate of rise of on-state current
Figure 28 – On-state current waveform for critical rate of rise of on-state current [Go to Page]
6.2.6 Peak case non-rupture current (IRSMC)
Figure 29 – Circuit diagram for verification of peak case non-rupture current
Figure 30 – Waveform of reverse current through thyristor
6.3 Measuring methods for electrical characteristics [Go to Page]
6.3.1 On-state voltage (VT)
Figure 31 – Circuit diagram for measurement of on-state voltage (DC method)
Figure 32 – Circuit diagram for measurement of on-state voltage (oscilloscope method)
Figure 33 – Graphic representation of on-state voltage versus current characteristic (oscilloscope method)
Figure 34 – Circuit diagram for measurement of on-state voltage (pulse method) [Go to Page]
6.3.2 Repetitive peak reverse current (IRRM)
Figure 35 – Circuit diagram for measurement of peak reverse current [Go to Page]
6.3.3 Latching current (IL)
Figure 36 – Circuit diagram for measurement of latching current [Go to Page]
6.3.4 Holding current (IH)
Figure 37 – Waveform of latching current
Figure 38 – Circuit diagram for measurement of holding current [Go to Page]
6.3.5 Off-state current (ID)
6.3.6 Repetitive peak off-state current (IDRM)
Figure 39 – Circuit diagram for measurement of off-state current (DC method)
Figure 40 – Circuit diagram for measurement of peak off-state current [Go to Page]
6.3.7 Gate trigger current (IGT) and gate trigger voltage (VGT)
Figure 41 – Circuit diagram for measurement of gate trigger current and voltage [Go to Page]
6.3.8 Gate non-trigger voltage (VGD) and gate non-trigger current (IGD)
Figure 42 – Circuit diagram for measurement of gate non-trigger voltage and current [Go to Page]
6.3.9 Turn-on delay time (tgd or td) and turn-on time (tgt)
Figure 43 – Circuit diagram for measurement of turn-on delay time and turn-on time
Figure 44 – On-state current waveform of thyristor [Go to Page]
6.3.10 Circuit commutated turn-off time (tq)
Figure 45 – Turn-on waveform of thyristor
Figure 46 – Turn-off waveform of thyristor
Figure 47 – Basic circuit diagram for measurement of circuit commutated turn-off time [Go to Page]
6.3.11 Critical rate of rise of off-state voltage (dv/dtcr)
Figure 48 – Circuit diagram for measurement of critical rate of rise of off-state voltage
Figure 49 – Waveform of linear rate of rise of off-state voltage
Figure 50 – Waveform of exponential rate of rise of off-state voltage [Go to Page]
6.3.12 Critical rate of rise of commutating voltage (dv(com)/dtcr) of triac
Figure 51 – Circuit diagram for measurement of critical rate of rise of commutating voltage of low current triac
Figure 52 – Waveform during commutation of low current triac
Figure 53 – Circuit diagram for measurement of critical rate of rise of commutating voltage of high current triac
Figure 54 – Waveform for measurement of critical rate of rise of commutating voltage of high current triac with high and low di/dt [Go to Page]
6.3.13 Recovered charge (Qr) and reverse recovery time (trr)
Figure 55 – Circuit diagram for measurement of recovered charge and reverse recovery time (half sinusoidal waveform method)
Figure 56 – Current waveform through thyristor for measurement of recovered charge and reverse recovery time (half sinusoidal waveform method)
Figure 57 – Circuit diagram for measurement of recovered charge and reverse recover time (rectangular waveform method)
Figure 58 – Current waveform through thyristor for measurement of recovered charge and reverse recover time (rectangular waveform method) [Go to Page]
6.3.14 Circuit commutated turn-off time (tq) of reverse conducting thyristor
Figure 59 – Circuit diagram for measurement of circuit commutated turn-off time of reverse conducting thyristor
Figure 60 – Current and voltage waveforms of circuit commutated turn-off time of reverse conducting thyristor [Go to Page]
6.3.15 Turn off behaviour of turn-off thyristors
Figure 61 – Circuit diagram for measurement of turn off behaviour of turn-off thyristors [Go to Page]
6.3.16 Total energy dissipation in a whole period of cycle (for fast switching thyristor)
6.4 Measuring methods for thermal properties [Go to Page]
6.4.1 General
6.4.2 Measurement of the case temperature (Tc)
6.4.3 Measuring methods for thermal resistance (Rth) and transient thermal impedance (Zth(t))
6.4.4 Measurement for thermal resistance and transient thermal impedance (Method A)
Figure 63 – Basic circuit diagram for measurement of transient thermal impedance (Method A) [Go to Page]
6.4.5 Measurement for thermal resistance and transient thermal impedance (Method B)
Figure 64 – Superposition of reference current pulse on different heating currents
Figure 65 – Waveforms for power dissipation and junction temperature (general case)
Figure 66 – Basic circuit diagram for measurement of thermal resistance (Method B)
Figure 67 – Waveforms for measurement of thermal resistance (Method B)
Figure 68 – Basic circuit diagram for measurement of transient thermal impedance (Method B)
Figure 69 – Waveform for measurement of transient thermal impedance (Method B) [Go to Page]
6.4.6 Measurement for thermal resistance and transient thermal impedance (Method C, for turn-off thyristors only)
Figure 70 – Basic circuit diagram for measurement of thermal resistance (Method C)
Figure 71 – Waveform for measurement of thermal resistance (Method C)
Figure 72 – Waveform for measurement of transient thermal impedance (Method C) [Go to Page]
6.4.7 Measurement for thermal resistance (Method D)
Figure 73 – Calibration and measurement arrangement for heat flow method
7 Requirements for type tests, routine tests, endurance tests and marking [Go to Page]
7.1 Type tests
7.2 Routine tests
7.3 Endurance tests [Go to Page]
7.3.1 General
7.3.2 List of endurance tests
Table 8 – Minimum type and routine tests for reverse blocking triode thyristor
Table 9 – Conditions for endurance tests [Go to Page]
7.3.3 Conditions for endurance tests
7.3.4 Acceptance-defining characteristics and acceptance criteria for endurance tests
7.3.5 Acceptance-defining characteristics and acceptance criteria for reliability tests
7.4 Measuring and test methods
7.5 Marking
Table 10 – Acceptance-defining characteristics after endurance tests
Bibliography [Go to Page]

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