1N4916

Overview

The Microchip Technology 1N4916 is a temperature compensated Zener reference diode designed for precision voltage regulation applications. It features a nominal Zener voltage of 19.2 V with a tolerance of +5%. The device utilizes double plug construction and metallurgical bonding to ensure stability. It operates within an extended temperature range from -65°C to +175°C. The component supports a DC power dissipation of 500 mW at +50°C, with a derating factor of 4 mW/°C above this threshold. Reverse leakage current is specified at 15 µA at 25°C and 12 Vdc reverse voltage.

Feature Summary

• Temperature compensated design for stable voltage reference performance across wide thermal ranges
• Double plug construction with metallurgically bonded elements for enhanced reliability
• Leadless surface mount package configuration suitable for automated assembly processes

Applications

• Precision voltage reference circuits requiring low noise and high stability
• Temperature compensated regulator designs in harsh environments
• Industrial instrumentation requiring extended operating temperature capabilities

Procurement Notes

Verify the specific suffix or variant against official datasheets to confirm package type and electrical tolerances. Ensure compatibility with leadless surface mount assembly processes. Confirm RoHS status and compliance requirements prior to procurement. Validate that the selected part number matches the required nominal voltage and temperature coefficient specifications for the target application.

Selection Notes

Select this component when a stable 19.2 V reference is needed in extreme temperature conditions. The leadless package requires appropriate PCB layout considerations for thermal management. Evaluate the 500 mW power dissipation limit against expected operating currents. Consider the low noise characteristics for sensitive analog signal processing applications where voltage drift must be minimized.

Part Context

This component belongs to the CDLL4916 through CDLL4932A series of temperature compensated Zener reference diodes manufactured by Microchip Technology. These devices are engineered for applications demanding high accuracy and long-term stability. The series offers various nominal voltages while maintaining consistent package and thermal characteristics.

Replacement Considerations

Consult official Microchip documentation for verified equivalent part numbers within the same series. Cross-reference electrical parameters such as nominal voltage, tolerance, and temperature coefficient before substitution.