1N3511A

Single Zener Diodes Overview

The 1N3511A is a single Zener diode manufactured by Microchip Technology, designed for voltage regulation and circuit protection. It features a nominal Zener voltage of 5.1 V with a tolerance of ±5%. The device is rated for a power dissipation of 500 mW in standard configurations, though specific variants like the 1N3511A-1 are rated at 400 mW. It utilizes a DO-204AH (DO-35) through-hole package, suitable for general-purpose applications requiring stable reference voltages.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation at a fixed 5.1 V reference point
• Constructed with silicon technology for reliable performance
• Available in hermetically sealed glass packages for environmental stability

Single Zener Diodes Applications

• Voltage regulation in power supply circuits
• Circuit protection against overvoltage conditions
• Reference voltage sources in electronic systems

Single Zener Diodes Procurement Notes

Verify the specific suffix (e.g., -1 or /TR) to confirm exact power ratings and packaging type, as specifications vary between standard and military-grade variants. Confirm RoHS compliance status if required for your assembly process. Ensure the DO-35 package dimensions match your PCB footprint requirements before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a precise 5.1 V Zener reference is needed in a through-hole design. Consider the 500 mW rating for standard applications, but verify if the 400 mW variant suffices for space-constrained designs. Check temperature coefficient requirements and ensure the ±5% tolerance aligns with your circuit's precision needs.

Single Zener Diodes Part Context

This part belongs to the 1N35 series of Zener diodes, historically significant in military and aerospace electronics. Microchip Technology continues production of these legacy parts, maintaining compatibility with original MIL-SPEC designs. The series offers various voltage options within the same DO-35 package form factor.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' 1N3511A equivalents from vendors like Central Semiconductor or STMicroelectronics. Verify that replacement parts maintain the 5.1 V Zener voltage and compatible DO-35 package dimensions. Ensure thermal characteristics match the original 500 mW or 400 mW rating depending on the specific variant used.