10PCS TL431 L78L05 Voltage Regulator ICs SOP-8 SOT-89

Q: What is the difference between the TL431 and L78L05 voltage regulator ICs included in this pack?

The TL431AC is a precision programmable shunt voltage reference that can be adjusted across a wide output range (2.5V–36V), making it highly versatile for custom reference and feedback circuits. The L78L05 is a fixed 5V positive linear voltage regulator capable of supplying up to 100mA of output current — perfect for powering small logic circuits and microcontrollers directly from a higher supply voltage.

Q: Are these ICs new and original, or are they pulled/refurbished components?

These are brand new and original ICs — not pulled from old boards or remarked. Each component is sourced fresh from the manufacturing supply chain, ensuring consistent electrical performance and reliable specifications for your designs.

Q: What package types are included — SOP-8 or SOT-89 — and are they compatible with standard PCB footprints?

This pack includes ICs in both SOP-8 (Small Outline Package, 8-pin) and SOT-89 (Small Outline Transistor) formats. Both are widely used, industry-standard SMD footprints fully compatible with most PCB designs and hand-soldering or reflow soldering processes.

10PCS TL431 L78L05 Voltage Regulator ICs SOP-8 SOT-89

$7.37 $8.48

10PCS TL431 & L78L05 Voltage Regulator ICs – SOP-8 & SOT-89 Packages

Get reliable, original integrated circuits with this 10-piece mixed IC pack featuring the popular TL431AC programmable voltage reference and the L78L05 5V linear voltage regulator. Ideal for electronics hobbyists, engineers, and repair technicians who need genuine, new components in compact surface-mount packages.

Product Highlights

Quantity: 10 pieces per pack
Includes: TL431ACDR / TL431ACDT / TL431AC / 431AC / TL431 and L78L05 / 78L05 variants
Package Types: SOP-8 and SOT-89 – compatible with standard SMD footprints
Condition: New and original ICs – not refurbished or remarked
TL431 Series: Precision programmable shunt voltage reference, adjustable from 2.5V to 36V
L78L05: 5V fixed positive linear voltage regulator, up to 100mA output current
Wide application: Power supplies, voltage references, feedback control circuits, battery chargers, and embedded systems
Made in Mainland China

Specifications

TL431 Output Voltage Range	2.5V – 36V (adjustable)
L78L05 Output Voltage	5V fixed
L78L05 Max Output Current	100mA
Package	SOP-8 / SOT-89
Condition	New & Original
Quantity	10 PCS

Common Applications

Switching and linear power supply designs
Precision voltage reference circuits
Battery management and charging circuits
Microcontroller and embedded system power regulation
PCB repair and prototyping

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Frequently Asked Questions

Q: What is the difference between the TL431 and L78L05 voltage regulator ICs included in this pack?

A: The TL431AC is a precision programmable shunt voltage reference that can be adjusted across a wide output range (2.5V–36V), making it highly versatile for custom reference and feedback circuits. The L78L05 is a fixed 5V positive linear voltage regulator capable of supplying up to 100mA of output current — perfect for powering small logic circuits and microcontrollers directly from a higher supply voltage.

Q: Are these ICs new and original, or are they pulled/refurbished components?

A: These are brand new and original ICs — not pulled from old boards or remarked. Each component is sourced fresh from the manufacturing supply chain, ensuring consistent electrical performance and reliable specifications for your designs.

Q: What package types are included — SOP-8 or SOT-89 — and are they compatible with standard PCB footprints?

A: This pack includes ICs in both SOP-8 (Small Outline Package, 8-pin) and SOT-89 (Small Outline Transistor) formats. Both are widely used, industry-standard SMD footprints fully compatible with most PCB designs and hand-soldering or reflow soldering processes.

Q: Can I use these voltage regulator ICs in DIY electronics projects and repairs?

A: Absolutely. The TL431 and L78L05 are among the most commonly used ICs in electronics, making this pack ideal for DIY projects, circuit prototyping, PCB repairs, and educational electronics. Their compact SMD packages suit modern, space-efficient designs.