F1856RD800 Crydom - Power Transistor Module
F1856RD800 Description
F1856RD800 is an 800 V, 55 A SCR/diode power module made by Crydom. It is used as a building block for AC switches, soft starters, controlled rectifiers and heater controls.
USComponent has sourced power semiconductors for maintenance teams and OEMs since 2001. For price and availability of the F1856RD800, send us a request for quote. Please confirm the specifications against the manufacturer's datasheet before purchase.
Summary of Features
Crydom F1856RD800 is an F18 Series SCR/diode power module, 55 A average output current, circuit RD (diode doubler), 800 V reverse blocking, isolation barriers without auxiliary cathodes.
Target Applications
Crydom F1856RD800 is used for AC/DC power conversion and control: controlled rectifiers, DC motor drives, heater and power control, battery chargers and power supplies.
Key Specifications
Crydom F1856RD800 is an F18 Series SCR/diode power module, 55 A average output current, circuit RD (diode doubler), 800 V reverse blocking, isolation barriers without auxiliary cathodes. Source: Crydom F18 Series Power Modules brochure (Performance Characteristics). Values at 25°C unless noted.
| Parameter | Value |
|---|---|
| Average output current per device (Tc = 85°C) | 55 A |
| Reverse blocking voltage (VRRM) | 800 V |
| Circuit configuration | RD: diode doubler |
| One-cycle surge current, peak (non-repetitive) | 1500 A |
| I²t for fusing (8.3 ms) | 9350 A²s |
| Rate of rise of on-state current | 100 A/µs |
| Rate of rise of off-state voltage (Tc = 125°C) | 500 V/µs |
| Leakage current (max, Tj = 125°C, rated voltage) | 20 mA |
| Gate current to fire (max, VD = 6 V) | 150 mA |
| Gate voltage to fire (max, VD = 6 V) | 3 V |
| Latching / holding current (max) | 500 mA / 300 mA |
| Thermal resistance junction to case, per module | 0.25 °C/W |
| Thermal resistance case to sink (with grease) | 0.1 °C/W |
| Isolation voltage (min, terminal to base) | 2500 Vrms |
| Junction operating and storage temperature | -40 to 125°C |
| Mounting torque | Mounting screws 20 in-lb; terminal studs 30 in-lb |
Technical document (PDF) | Request a quote for F1856RD800 (reply within 24 hours)
Related Part Numbers
| F1856RD400 400V / 55A | F1857RD1200 1200V / 55A | F1857RD1600 1600V / 55A | F1857RD400 400V / 55A |
| F1857RD600 600V / 55A | F1870RD600 600V / 70A | F1842RD1600 1600V / 40A | F1842RD600 600V / 40A |
| F1856HD600 | F1856SD600 | F1856SD800 | F1854SD1200 |
| F1855DH600 | F1855HD600 | F1855SD1200 | F1855SD600 |

