This post explains for the diode.
The Part Number is MTZ10A.
The function of this semiconductor is SILICON EPITAXIAL PLANAR ZENER DIODE.
The package is DO-34 Type
Manufacturer: SEMTECH ELECTRONICS
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A Zener diode is a type of semiconductor device that is designed to operate in the reverse-bias mode, allowing it to be used as a voltage regulator.
A Zener diode consists of a P-N junction that is designed to allow the flow of current in the reverse direction when the voltage across the diode exceeds the Zener voltage. This characteristic makes it useful as a voltage reference and a voltage stabilizer. The Zener voltage can be precisely controlled during the manufacturing process, which makes Zener diodes ideal for use in voltage regulation circuits.
Zener diodes are widely used in power supplies, voltage regulators, and voltage reference circuits. They are also used as protection devices in electronic circuits, where they can protect against overvoltage and voltage transients.
1. Constant Voltage Control
• Glass sealed envelope
• High reliability