JANS2N3700UB

Single Bipolar Transistors Overview

The JANS2N3700UB is a low-power NPN silicon transistor in a ceramic surface-mount package, qualified per MIL-PRF-19500/391. It features an 80 V collector-emitter voltage and 1 A continuous collector current. The device operates within a junction temperature range of -65 to +200 °C with a total power dissipation of 0.5 W at 25 °C. Thermal impedance values are 325 °C/W junction-to-ambient and 90 °C/W junction-to-solder pad.

Single Bipolar Transistors Feature Summary

• Hermetically sealed ceramic surface mount construction for high-reliability environments
• Qualified under the JANS reliability level per MIL-PRF-19500/391 specifications
• Radiation-hardened design suitable for severe environmental conditions

Single Bipolar Transistors Applications

• Military high-reliability applications
• Spacecraft systems
• Harsh environment circuits

Single Bipolar Transistors Procurement Notes

Verify that the specific ordering suffix matches the required qualification level and RoHS compliance status. Confirm thermal management requirements align with the specified junction-to-ambient and junction-to-solder pad impedance values. Ensure the procurement documentation references the correct military specification for acceptance testing.

Single Bipolar Transistors Selection Notes

Select this component when a hermetically sealed NPN transistor is required for radiation-tolerant or high-reliability missions. The UB package provides a surface-mount alternative to traditional leaded TO-18 configurations while maintaining equivalent electrical performance. Verify that the 0.5 W power dissipation rating meets the thermal constraints of the target application.

Single Bipolar Transistors Part Context

This part belongs to the 2N3700 family of small-signal bipolar transistors. While the standard 2N3700 utilizes a leaded TO-18 package, the UB variant adapts the same semiconductor die into a ceramic surface-mount form factor. This allows designers to utilize automated assembly processes without sacrificing the ruggedness associated with hermetic sealing.

Single Bipolar Transistors Replacement Considerations

Direct replacements include other JANS-qualified versions of the 2N3700 from different manufacturers. Surface-mount equivalents must be verified for identical pinout compatibility and hermetic seal integrity.