Side-by-side reference

Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

First referenceCompare with

VREF-H

Symbols

Shunt voltage reference

Establishes a reference voltage using a shunt-current path and the documented bias or feedback circuit.

Drawing use: Schematic
Application: Logic & signals
Reference family: Manufacturer

A distinction that matters

A shunt reference requires its bias arrangement; its terminals cannot be substituted directly for a three-terminal series reference.

Full reference

Symbols

Zener diode

A Zener diode is a semiconductor component intended for a documented reverse-breakdown operating function. The schematic identifies its polarity and the associated current-limiting or bias circuit.

Drawing use: Schematic
Application: Control circuits
Reference family: IEC / Manufacturer

A distinction that matters

A Zener diode's specified breakdown function differs from an ordinary rectifier diode's intended service.

Full reference

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.