OVERVIEW TT MODULES—

Module families grouped by repetitive reverse voltage and base-plate width

VRRM
V
Base-plate width (mm)
3455 (Q3 2025)65 (Q3 2025)70 (Q1 2026)77 (Q1 2026)
6500——240 A (>80 °C)——
4400——260 A (>80 °C)—400 A (>80 °C)
3600 115 A (>80 °C)
Yet to be implemented
160 A (>80 °C) 320 A (>80 °C) 560 A (>80 °C) 500 A (>80 °C)
2800 130 A (>80 °C)
ESTxTx34C26 (Crimp)
200 A (>80 °C) 400 A (>80 °C) 630 A (>80 °C) 630 A (>80 °C)
2400 — 320 A (>80 °C) 450 A (>80 °C) 650 A (>80 °C) —
2200 165 A (>80 °C)
ESTxTx34C22 (Crimp)
— — 700 A (>80 °C) 750 A (>80 °C)
1800 200 A (>80 °C)
ESTxTx34C18 (Solder)
500 A (>80 °C) 500 A (>80 °C) 810 A (>80 °C) 850 A (>80 °C)
1200——550 A (>80 °C)—1000 A (>80 °C)
800————1250 A (>80 °C)
VRRM [V] / Base-plate (mm) 3455657077

Example order code

1.2.3.4.5.6.
ES T(x) T(x) 34 C 26
  1. Phase-control thyristor module (series prefix “ES”).
  2. Polarity of first thyristor (2 → 1): T = forward, Tx = reverse.
  3. Polarity of second thyristor (3 → 1): T = forward, Tx = reverse.
  4. Cooling-base width of the module, mm (e.g. 34).
  5. Voltage-class code multiplier (C = ×100).
  6. Voltage class of the module, VRRM (e.g. 26 → 2600 V, 22 → 2200 V).
TT MODULES — ELECTRICAL PARAMETERS—
Type UDRM, URRM
V
ITAV
A (TC)
ITSM
kA / 10 ms
UTM/ITM
V / A (25 °C)
UT(TO)
V
RT
mΩ
tq
µs @ 50 V/µs
(di/dt)crit
A / µs
(du/dt)crit
V / µs
IGT/UGT
A / V
RthJC
°C / W
Tjmax
°C
Uisol
V
Qrr
µC
Irrm
A
trr
µs
EST(x)T(x)34C18 1000 – 1800121 (85)4.2 1.6 / 3801.022.4 250 – 320125 – 250500 – 1000 0.3 / 2.00.1912525009008025
EST(x)T(x)34C22 2000 – 2200109 (85)3.9 1.6 / 3420.854.0 250 – 320125 – 250500 – 1000 0.3 / 2.00.1912536009008025
EST(x)T(x)34C26 2400 – 2600102 (85)3.3 1.6 / 3200.894.6 250 – 320125 – 250500 – 1000 0.3 / 2.00.1912536009008025
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