TD251N18 Infineon - SCR
TD251N18 Description
TD251N18 is a 1800 V thyristor module made by Infineon Technologies (formerly Eupec). It is used in phase-controlled rectifiers, soft starters, battery chargers and temperature controllers for furnaces and heaters.
USComponent (Young & New Century LLC) supplies power modules, thyristors, diodes and other industrial components, including legacy parts. Contact us for a quote on the TD251N18, and please confirm ratings against the datasheet before ordering.
Target Applications
Infineon TD251N18 is used for AC/DC power conversion and control: controlled and uncontrolled rectifiers, DC motor drives, soft starters, battery chargers, welding equipment, heater and temperature control, and AC power controllers.
Key Specifications
TD251N18 is an eupec (Infineon) PowerBLOCK thyristor/diode module. Source: eupec Power Semiconductors Shortform Catalog 2003 (catalog page available on this page as PDF).
| Parameter | Value |
|---|---|
| Manufacturer | eupec (Infineon Technologies) |
| Product type | PowerBLOCK thyristor/diode module |
| Repetitive peak off-state / reverse voltage (VDRM / VRRM) | 1800 V (series 1000 to 1800 V) |
| Average on-state current (ITAVM), 180° el sin | 250 A at Tc = 85 °C |
| RMS current (ITRMSM) | 410 A |
| Surge current (ITSM), 10 ms, Tvj max | 8000 A |
| I²t, 10 ms, Tvj max | 320 × 10³ A²s |
| Threshold voltage V(T0) | 0.80 V |
| Slope resistance rT | 0.70 mΩ |
| Critical rate of rise of on-state current (di/dt)cr | 250 A/µs |
| Turn-off time tq, typ. | 250 µs |
| Critical rate of rise of off-state voltage (dv/dt)cr | 1000 V/µs |
| Thermal resistance RthJC | 0.13 °C/W |
| Thermal resistance RthCK | 0.04 °C/W |
| Max. junction temperature Tvj max | 125 °C |
| Package (outline) | TP50 |
Technical document (PDF) | Request a quote for TD251N18 (reply within 24 hours)
Related Part Numbers
| TD250N18 1800V, 410A | TD251N20 250A/2000V | TD251N16 1600V, 250A | TD251N12 1200V, 250A |
| TD251N08 800V, 410A | TD250N08 800V, 410A | TD250N12 250A/1200V | TD250N16 1600V, 410A |
| TD251N18KOF 1800(V) / 251(A) | TD251N16KOF 1600(V) / 251(A) | TD251N14KOF 1400(V) / 251(A) | TD251N12KOFS01 1200V, 250A |
| TD251N12KOF 1200(V) / 251(A) | TD25N04KOF 400V, 25A | TD25N06KOF 600V, 25A | TD25N08 800V, 50A |

