2N918UB

Single Bipolar Transistors Overview

The Microchip Technology 2N918UB is a silicon NPN small-signal bipolar junction transistor (BJT) designed for low-power applications. It utilizes a hermetically sealed TO-18-3 metal can package, providing robust environmental protection and high reliability suitable for demanding operational conditions. The device supports a maximum collector-emitter voltage of 15 V and a collector current of 50 mA, with a power dissipation rating of 200 mW. Its wide operating temperature range extends from -65 °C to +200 °C, ensuring functionality in extreme thermal environments.

Single Bipolar Transistors Feature Summary

• Hermetically sealed metal can construction ensures long-term stability and resistance to moisture and contaminants
• Wide thermal operating range accommodates extreme cold and high-temperature industrial or military environments
• Low power dissipation design enables efficient operation in compact, heat-sensitive circuit layouts

Single Bipolar Transistors Applications

• Military aerospace electronic systems requiring radiation and environmental hardening
• Industrial control circuits operating under severe thermal stress
• High-reliability communication equipment signal processing stages

Single Bipolar Transistors Procurement Notes

Verify the specific datasheet revision and quality certification level required for your application before ordering. Confirm that the TO-18-3 through-hole package dimensions match your PCB footprint constraints. Ensure the supplier provides traceability documentation consistent with your quality management standards. Check for any specific handling requirements associated with hermetically sealed ceramic or metal packages during assembly.

Single Bipolar Transistors Selection Notes

Select this component when hermetic sealing and extended temperature capability are mandatory. Compare against standard plastic-packaged alternatives if environmental exposure is minimal. Verify that the 50 mA current limit and 15 V voltage rating align with your circuit's peak load requirements. Consider the physical size of the TO-18 case relative to available board space.

Single Bipolar Transistors Part Context

This part belongs to the legacy 2N series of discrete transistors, widely recognized for their use in ruggedized electronics. Microchip Technology continues to support these components for defense and aerospace markets where established reliability data is critical. The 2N918UB represents a specific variant optimized for general-purpose switching and amplification within strict environmental boundaries.

Single Bipolar Transistors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-reference with other manufacturers' hermetically sealed TO-18 NPN transistors only after verifying pinout compatibility and electrical parameter equivalence against the official datasheet.