2N2975

Bipolar Transistor Arrays Overview

The 2N2975 is a standard Zener diode manufactured by Microchip Technology, designed for voltage regulation and reference applications. It features a nominal Zener voltage of 11V with a test current of 20mA and a maximum impedance of 3 Ohms at this operating point. The device supports a power dissipation of up to 500mW when mounted on a stud, allowing for a maximum Zener current of approximately 230mA under thermal limits. It operates within a junction temperature range of -65°C to +175°C and is available in a rugged stud-mount package suitable for high-reliability environments.

Bipolar Transistor Arrays Feature Summary

• High-temperature stability with a junction rating up to 175°C
• Rugged stud-mount construction for reliable thermal management
• Standardized Zener voltage characteristics for precise regulation

Bipolar Transistor Arrays Applications

• Voltage reference circuits in industrial equipment
• Over-voltage protection stages in power supplies
• Clamping applications in aerospace and military systems

Bipolar Transistor Arrays Procurement Notes

Verify the specific suffix code (e.g., B, RB, RBE) to confirm exact electrical tolerances and testing standards before procurement. Ensure the mounting surface preparation meets the manufacturer's specifications for thermal interface material application. Confirm RoHS compliance status if required for the specific production batch, as older stock may differ from current manufacturing runs.

Bipolar Transistor Arrays Selection Notes

Select the 2N2975 when an 11V regulation point is required in high-temperature or high-vibration environments. Compare the 3 Ohm impedance against load transient requirements to ensure adequate regulation performance. Consider the TO-5 or stud-mount mechanical constraints during PCB or chassis layout planning to accommodate the physical footprint and thermal pad requirements.

Bipolar Transistor Arrays Part Context

This component belongs to the legacy MIL-spec Zener diode family maintained by Microchip. It serves as a fundamental discrete semiconductor element for analog circuit design where stable voltage references are critical. The part number represents a standardized specification often cross-referenced with other manufacturers' equivalents for supply chain redundancy.

Bipolar Transistor Arrays Replacement Considerations

Publicly confirmed substitute part numbers include JANTXV1N2975B and JANTXV1N2975RB. These variants offer similar electrical characteristics but may differ in qualification levels such as space-grade or enhanced screening processes. Verify pinout compatibility and thermal resistance values when substituting.