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Product Detailed Parameters
- Description：SCR THRU HOLE TO-3
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tube
- Voltage - Off State：-
- Voltage - Gate Trigger (Vgt) (Max)：-
- Current - Gate Trigger (Igt) (Max)：-
- Current - Hold (Ih) (Max)：-
- Current - Non Rep. Surge 50, 60Hz (Itsm)：-
- SCR Type：-
- Operating Temperature：-
- Grade：-
- Qualification：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Voltage - On State (Vtm) (Max)：-
- Current - On State (It (AV)) (Max)：-
- Current - On State (It (RMS)) (Max)：-
- Current - Off State (Max)：-
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Overview
The Central Semiconductor 2N3670 PBFREE is a hermetically sealed Silicon Controlled Rectifier (SCR) designed for sensing circuit applications and control systems. It features an N-channel configuration within the thyristor family, utilizing silicon technology. The component is manufactured by Central Semiconductor and supports through-hole mounting in a TO-18-3 package. It is RoHS compliant and supplied in bulk packaging. This device is scheduled for obsolescence and will be discontinued by the manufacturer.
Feature Summary
- Hermetically sealed construction for reliable operation in demanding environments
- Designed specifically for sensing circuit applications and control systems
- Through-hole mounting capability in a TO-18-3 package
Applications
- Sensing circuit applications
- Control systems
- High voltage device implementations
Procurement Notes
Verify current availability status as this component is scheduled for obsolescence and will be discontinued by the manufacturer. Confirm that the TO-18-3 through-hole package meets your PCB layout requirements. Ensure that the hermetic sealing specification aligns with your environmental protection needs. Check for any alternative part numbers recommended by Central Semiconductor before finalizing procurement plans due to the discontinuation notice.
Selection Notes
Select this component only if hermetic sealing is a critical requirement for your application environment. Consider the through-hole TO-18-3 package constraints during mechanical design. Evaluate the suitability of its specifications for sensing and control system roles. Be aware that the product is being phased out, which may impact long-term supply chain stability and future maintenance support for deployed systems.
Part Context
The 2N3670 PBFREE belongs to the SCR (Silicon Controlled Rectifier) category from Central Semiconductor. It is related to the 2N3669 model, which shares similar hermetic sealing characteristics. Both devices are intended for high-voltage sensing and control applications. The PBFREE suffix indicates lead-free compliance. The component is distinct from general-purpose transistors like the 2N4391 JFET or 2N3707 BJT found in the same manufacturer's catalog.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Due to the scheduled obsolescence, engineers should identify equivalent hermetically sealed SCRs from other manufacturers that meet the specific voltage and current requirements of the original design.
