1N4614-1

Single Zener Diodes Overview

The Microchip Technology 1N4614-1 is a 500 mW metallurgically bonded glass Zener diode in the axial-lead DO-35 (DO-204AH) package. It provides a nominal Zener voltage of 1.8 V with a standard tolerance of ±5%. The device operates within a junction and storage temperature range of -65°C to +175°C. Key electrical characteristics include a maximum Zener impedance of 1200 Ohms, a test current of 250 µA, and a maximum reverse leakage current of 3.5 µA at 1 V.

Single Zener Diodes Feature Summary

• Qualified per MIL-PRF-19500/435 for JAN, JANTX, JANTXV, and JANS reliability levels.
• Constructed with an internal metallurgical bond for high reliability.
• Hermetically sealed in an axial-lead glass DO-35 package.

Single Zener Diodes Applications

• Voltage regulation over broad ranges of current and temperature.
• High reliability applications requiring radiation hardness.
• Circuits requiring minimal capacitance and ESD non-sensitivity.

Single Zener Diodes Procurement Notes

Verify that the specific order matches the required military qualification level (JAN, JANTX, JANTXV, or JANS), as these designations define the manufacturing and testing standards. Confirm RoHS compliance status if environmental regulations apply, noting that commercial versions may differ from mil-qualified parts. Ensure the package type corresponds to the design requirements.

Single Zener Diodes Selection Notes

Select this component when a low-voltage Zener reference near 1.8 V is needed in a ruggedized environment. The DO-35 package supports through-hole mounting. Consider the negative temperature coefficient inherent to sub-5V Zener voltages. Verify that the power dissipation derating curve aligns with the thermal management strategy of the target application.

Single Zener Diodes Part Context

This part belongs to the 1N4614-1 through 1N4627-1 series of 500 mW Zener diodes manufactured by Microchip Technology. These devices are JEDEC registered and offer various voltage options from 1.8 V to 100 V. The series is available in both axial-lead glass packages and surface mount configurations.

Single Zener Diodes Replacement Considerations

Equivalent parts include 1N4614UR-1 and CDLL4614E3.

Single Zener Diodes FAQ

What is the temperature coefficient for the 1N4614-1?

The maximum temperature coefficient of regulator voltage for the 1N4614-1 is -0.075 %/°C.

Is the 1N4614-1 sensitive to electrostatic discharge?

No, the device is non-sensitive to ESD per MIL-STD-750 method 1020.