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The Central Semiconductor Corp 2N3669 PBFREE is a hermetically sealed silicon controlled rectifier (SCR) designed for sensing circuit applications and control systems. It features a TO-3 flange mount package with an anode-connected case. The device supports a maximum RMS on-state current of 16 A, a repetitive peak reverse voltage of 200 V, and a non-repetitive peak forward voltage of 400 V. It operates within a temperature range of -65°C to +100°C.
Verify the specific voltage rating variant required, as datasheets indicate availability in ranges from 220V to 800V. Confirm lead-free status and RoHS compliance for environmental standards. Ensure the TO-3 flange mount interface matches the heat sink requirements. Check for discontinuance notifications or limited supply statuses before finalizing procurement plans.
Select this component when hermetic sealing and high thermal capacity are critical for the application. The TO-3 package allows for direct mounting to chassis heatsinks. Consider the 16A current rating against peak load requirements. Verify that the 200V reverse voltage rating exceeds the circuit's peak inverse voltage to prevent breakdown during operation.
This part belongs to the Central Semiconductor SCR family, specifically engineered for industrial and military-grade reliability. The hermetic seal distinguishes it from standard plastic-packaged SCRs, offering superior protection against moisture and contaminants. It serves as a rugged alternative for high-power switching tasks where long-term stability is essential.
Equivalent parts include the 2N3670. Verify pinout compatibility and thermal resistance characteristics when substituting. Ensure the replacement maintains the same hermetic sealing standard and flange mount dimensions for proper installation.