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F1857SD1400
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Product Detailed Parameters
- Description：MODULE SCR/DIODE 55A 530VAC
- Series：F18
- Mfr：Sensata-Crydom
- Package：Bulk
- Structure：Series Connection - All SCRs
- Number of SCRs, Diodes：2 SCRs
- Voltage - Off State：1.4 kV
- Current - On State (It (AV)) (Max)：-
- Current - On State (It (RMS)) (Max)：-
- Current - Non Rep. Surge 50, 60Hz (Itsm)：1500A @ 60Hz
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Chassis Mount
- Package / Case：Module
- Voltage - Gate Trigger (Vgt) (Max)：3 V
- Current - Gate Trigger (Igt) (Max)：150 mA
- Current - Hold (Ih) (Max)：-
- Grade：-
- Qualification：-
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Overview
The F1857SD1400 is a silicon SCR-Diode module from the Crydom F18 series, designed for high-power industrial applications. It features a reverse repetitive peak voltage of 1.2 kV and an on-state current rating of 55 A. The device utilizes a screw mount installation style and operates within a temperature range of -40°C to +125°C. With a forward voltage drop of 1.4 V and a unit weight of 135 g, this discrete semiconductor module provides robust performance for rectification and control circuits requiring high voltage isolation and thermal stability.
Feature Summary
- Integrates SCR and Diode components in a single silicon module structure
- Supports screw mount installation for secure mechanical attachment
- Operates reliably across extended industrial temperature ranges
Applications
- Industrial power rectification systems
- High-voltage DC motor control circuits
- Power supply input stages
Procurement Notes
Verify component authenticity by cross-referencing the manufacturer part number with official Sensata-Crydom documentation. Ensure that the received hardware matches the specified 1.2 kV voltage rating and 55 A current capacity. Confirm that the package type corresponds to the screw mount configuration required for the target application board or heatsink assembly prior to final integration.
Selection Notes
Select this module when circuit requirements demand a combined SCR and diode solution with a 1.2 kV blocking capability. The 55 A continuous current rating suits moderate-to-high power loads. Consider the 1.4 V forward voltage drop for thermal management calculations. Verify that the operating environment stays within the specified -40°C to +125°C range to ensure long-term reliability and proper junction temperature handling.
Part Context
This component belongs to the Crydom F18 series of discrete semiconductor modules. The series offers various configurations tailored for different voltage and current levels. The F1857SD1400 specifically addresses applications needing high reverse voltage tolerance alongside significant on-state current handling, utilizing standard silicon technology for consistent switching characteristics in demanding electrical environments.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative modules only if they match the 1.2 kV VRRM, 55 A IT rating, and screw mount footprint specifications exactly.
