Voltage Regulators

Voltage Regulators
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L7805 TO220 5V Voltage Regulator (L7805 Volt Reg)
  • Integrated circuit
  • Voltage regulator
  • +5V
  • Non Insulated
R9.23  Inc VAT
L7812CV Voltage Regulator IC 12V (1A5 L7812CV Regulator IC 12V)
Primary input voltage: 19V
Input Voltage Min: 14V
Maximum input voltage: 35V
Fixed output voltage: 12V
Pressure drop: 2V
Output channel number: 1
Number of pins: 3
Output current: 1.5A
Package Type: TO-220 Tube
Operating temperature range: 0℃ to + 150℃ 
SVHC (Highly Concerned Substances): No SVHC (20-Jun-2011)
Device number: 7812
Tolerance, operating voltage +: 4%
Voltage Rectifier Type: Positive Fixed
Maximum supply voltage: 27V
Power supply voltage minimum: 14.5V
Surface Mount Devices: Through Hole Installation

Package included:

1 x TO-220 Voltage Regulator IC
R7.90  Inc VAT
TO-220 Clip-on Heat Sink (C7 clip-on heatsink)

Voltage regulators and transistors can get a little hot sometimes! Most chips state that they can cope with high currents and voltage drops, but running these devices in high capacity situations can shorten their life. If you need to protect them from burning out, then add this nifty clip-on heat sink! No screws of thermal paste required, these heat sinks simply slide on to any TO-220 size chip.

These heat sinks have a thermal resistance of 28°C/W when connected to a TO-220 chip, which should let you dissipate around 4 Watts of power.

Technical Specification:

  • Packages Cooled : TO-220
  • Thermal Resistance : 28°C/W
  • External Height : 20mm
  • External Width : 19.7mm
  • External Length : 8.1mm
  • Mounting Type : Vertical / Horizontal clip-on
R14.90  Inc VAT
Voltage Regulator 3.3V TO220 LD1117V33 (LD1117V33 Volt Reg)
    The LD1117V33 is a fixed output low dropout (LDO) positive voltage regulator in 3 pin TO-220 package. High efficiency is assured by NPN pass transistor. Unlike than PNP, the quiescent current flows into the load and 10µF minimum capacitor is needed for stability. Onchip trimming allows this regulator to reach very tight output voltage tolerance of ±1% at 25°C.
    • Fixed output voltage is 3.3V
    • Low dropout voltage is 1.1V at 800mA output current
    • Output current is 950mA
    • Operating input voltage is 15V
    • Internal current and thermal limit
    • Available in ±1% (at 25°C) and 2% tolerance at full temperature range
    • Supply voltage rejection is typically 75dB
    • Operating junction temperature range from 0°C to 125°C


    R13.50  Inc VAT
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