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DC Supply Protector kit (adjustable TH version)

A complete kit to build the through-hole DC Protector with adjustable overvoltage threshold (3-27V or 5-27V). Rated to handle up to 7A.

See the link below for a complete list of parts included. Both TO-92 and SOT-23 versions of the TL431 are provided so you can fit whichever you prefer. Photo shows the assembled kit.

Cat No SC6949. Price: AUD $22.50 ¹

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In stock:

yes (39 available). Estimated dispatch time: 1-3 days

Related to: Project: DC Supply Protectors (June 2024 [print issue] [online issue])

Other items relevant to this project:

Kit parts list

	1 × 50kΩ top-adjust multi-turn trimpot
	1 × DC Supply Protector PCB [08106242] (adjustable TH version)

Connectors

2 × 2-way mini horizontal terminal block, 5.08mm pitch (blue, small, Philips)

Semiconductors

	1 × IPP80P03P4L-07 high-current P-channel Mosfet
	1 × IPP80N06S4L-07 high-current N-channel Mosfet (TO-220)
	1 × TL431(A) adjustable shunt regulator (TO-92)
	1 × BC546C 65V 100mA NPN transistor (TO-92)
	1 × BC556C 65V 100mA PNP transistor (TO-92)
	1 × 3mm green diffused LED
	1 × 3mm red diffused LED
	1 × 1N4148 75V 200mA diode (DO-35)
	1 × 1N4744(A) 15V 1W zener diode (DO-41)
	1 × 13V 1W zener diode (DO-41)
	1 × TL431M regulator (SOT-23)

Through-hole Capacitors

1 × 100nF 100V MKT

Through-hole Resistors

	7 × 10kΩ ±1% ¼W
	3 × 3.9kΩ ±1% ¼W
	2 × 2.2kΩ ±1% ¼W

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