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$45.46
| Voltage | WPC | AH/kVA | Length | Width | Height | Weight |
|---|---|---|---|---|---|---|
| 1200 V | N/A | 90 A | N/A | N/A | N/A | 170 g |
| Voltage | 1200 V |
| WPC | N/A |
| Amp/H | 90 A |
| Length | N/A |
| Width | N/A |
| Height | N/A |
| Weight | 170 g |
The SanRex PK90HB120 is a 1200 V, 90 A power thyristor module designed for high-power rectifier circuits, AC power control, motor drives, heater controls, static switching and other industrial power-conversion applications.
Its dual phase-control SCR configuration combines high surge-current capability with strong dv/dt and di/dt performance. An electrically isolated mounting base simplifies heatsink installation while providing 2500 VRMS isolation between the power circuit and mounting base.
| Parameter | Value |
| Manufacturer | SanRex (Sansha Electric) |
| Part Number | PK90HB120 |
| Device Type | Dual phase-control thyristor (SCR) module |
| Repetitive Peak Off-State / Reverse Voltage (VDRM / VRRM) | 1200 V |
| Non-Repetitive Peak Reverse Voltage (VRSM) | 1350 V |
| Average On-State Current (IT(AV)) | 90 A — single-phase half-wave, 180° conduction, Tc = 88°C |
| RMS On-State Current (IT(RMS)) | 140 A |
| Surge On-State Current (ITSM) | 1650 A @ 50 Hz / 1800 A @ 60 Hz, non-repetitive |
| I²t | 15,000 A²s |
| Peak On-State Voltage (VTM) | 1.40 V max @ IT = 270 A, Tj = 125°C |
| Gate Trigger Current (IGT) | 100 mA max @ Tj = 25°C |
| Gate Trigger Voltage (VGT) | 2.0 V max @ Tj = 25°C |
| Non-Trigger Gate Voltage (VGD) | 0.25 V min @ Tj = 125°C |
| Holding Current (IH) | 50 mA typical @ Tj = 25°C |
| Latching Current (IL) | 100 mA typical @ Tj = 25°C |
| Turn-On Time (tgt) | 10 µs max |
| Critical dv/dt | 500 V/µs minimum |
| Critical di/dt | 200 A/µs |
| Off-State / Reverse Leakage Current | 15 mA max @ rated voltage, Tj = 125°C |
| Thermal Resistance Rth(j-c) | 0.30°C/W max — junction to case |
| Isolation Voltage (VISO) | 2500 VRMS for 1 minute, base-to-terminals |
| Operating Junction Temperature | −40°C to +125°C |
| Storage Temperature | −40°C to +125°C |
| Mounting Torque | M6: 2.5–3.9 N·m |
| Terminal Torque | M5: 1.5–2.5 N·m |
| Mass | Approx. 170 g |
| Package / Construction | PK90HB series screw-terminal module with electrically isolated baseplate |
| Module | Applications | Notes |
| PK90HB120 | Rectifiers; AC/DC motor drives; heater controls; light dimmers; static switches | Observe ITSM, dv/dt and di/dt limits; use a flat heatsink surface and appropriate thermal interface material. |
