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AC/DC Power Adapters

Guidelines for Choosing the Right Power Adapter

Make sure you have the facts needed to order the correct power adapter!

Determine output voltage
and current type required

For most household applications, this
will be between 3 V and 24 V. Most
adapters are DC (direct current), rather
than AC (alternating current),but don't
take it for granted!

Determine whether you need a
regulated or unregulated adapter

Some devices require a regulated power
adapter, which keeps output voltage and
current constant. Never use an unregulated
power adapter to replace a regulated one!

Determine your device's
current draw

This will be measured in Amps or
Milliamps (A or mA). Never replace an
adapter with one rated for less current,
although in some cases it may be
acceptable to increase the current rating.

Is it USB?

Originally developed for computer peripherals, USB is becoming
a popular way to power and charge electronic devices. It may
seem simple, but you'll need to navigate current rating and the
differences between USB, USB Mini, and USB Micro.

Determine the plug's style, shape, and polarity

The most common style of power adapter plug is the 2.1 mm
or 2.5 mm "barrel". Knowing the characteristics of the plug
that matches your device's socket is essential to choosing the
correct adapter.

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12 VDC 5A Switching Power Supply with 2.5 x 5.5mm Plug Your Price: $16.75 (1 review) #120-056 Qty:	Streetglow OPTX 12 VDC 2.5A AC Adapter Power Supply with Distribution Block Special Price: $14.78 #129-002 Qty:	12 VDC 1200mA AC Adapter Special Price: $3.88 (2 reviews) #129-083 Qty:	4.5 VDC 500mA AC Adapter Your Price: $5.95 (3 reviews) #120-015 Qty:
Talos SP1245 CCTV 12 VDC Switching Power Supply Adapter 4-Output for Camera Your Price: $19.50 (2 reviews) #334-117 Qty:	12 VAC 3500mA AC Power Supply w/Bare Leads Special Price: $5.50 (6 reviews) #129-081 Qty:	9 VAC 1000mA AC Adapter Your Price: $11.62 (8 reviews) #120-1030 Qty:	12 VAC 3500mA AC Power Supply Special Price: $5.80 (3 reviews) #129-079 Qty:
24 VDC 5A Switching Power Supply with 2.5 x 5.5mm Plug Your Price: $29.90 (1 review) #120-055 Qty:	Universal AC to DC Adapter Switching Power Supply 1700mA Your Price: $12.50 (3 reviews) #120-150 Qty:	Talos SP1211 CCTV Switching Power Supply 12 VDC 1000mA Your Price: $12.50 #334-116 Qty:	Velleman Compact Universal DC Adapter Power Supply Your Price: $19.79 (7 reviews) #320-140 Qty:
24 VAC 1200mA AC Adapter Your Price: $16.00 (5 reviews) #120-1170 Qty:	6 VDC 500mA AC Adapter Your Price: $5.95 (6 reviews) #120-025 Qty:	Universal 12 VDC 2A AC Power Adapter with Worldwide Plug Kit Special Price: $9.50 #129-145 Qty:	12 VDC 300mA AC Adapter Your Price: $5.95 (7 reviews) #120-040 Qty:
12 VDC 500mA AC Adapter Your Price: $5.95 (2 reviews) #120-045 Qty:	Buffalo DV9-500 9VDC 500mA Power Supply for IR Receiver Your Price: $7.50 (5 reviews) #182-317 Qty:	12 VDC 500mA AC Adapter Your Price: $9.53 (2 reviews) #120-1100 Qty:	12 VDC 2000mA 2A Switching Power Supply US and EU 2.5mm plug Your Price: $12.95 (1 review) #120-052 Qty:
24 VDC 1000mA AC Adapter Your Price: $20.67 (6 reviews) #120-1180 Qty:	Peavey 16.5V AC Power Supply 03013830 Your Price: $15.98 (2 reviews) #248-8696 Qty:	12 VDC 3A Power Adapter Your Price: $21.00 (2 reviews) #320-312 Qty:	Ever Glow 9 VDC 300mA AC Power Adapter Special Price: $4.98 #129-103 Qty:
Universal UB1640W 16.5 VAC 40VA Plug-In Wall Transformer Special Price: $9.90 #129-140 Qty:	24 VDC 600mA AC Adapter Your Price: $15.36 (2 reviews) #120-1185 Qty:	Peavey 15 VDC Power Supply 03004300 Your Price: $15.00 #248-8358 Qty:	3 VDC 500mA AC Adapter Your Price: $5.95 (4 reviews) #120-010 Qty:
24 VDC 1880mA Switching Power Supply US and EU Special Price: $14.98 #120-054 Qty:	12 VDC 1000mA AC Adapter Your Price: $9.90 (1 review) #120-050 Qty:	4.5 VDC 1000 mA AC Adapter Your Price: $13.99 (1 review) #120-1010 Qty:	12 VDC 1000mA Regulated AC Adapter 2.1mm x 5.5mm Plug Your Price: $13.92 (4 reviews) #120-1085 Qty:
Wired Home WHPS Power Supply for IR Repeater Hub Your Price: $7.50 #182-862 Qty:	6 VDC 1400mA AC Adapter Your Price: $12.82 #120-1020 Qty:	18 VDC 600mA AC Adapter Your Price: $13.87 (4 reviews) #120-1165 Qty:	9 VDC 1000mA AC Adapter Your Price: $12.82 (1 review) #120-1040 Qty:
12 VDC 800mA AC Adapter Your Price: $12.82 (1 review) #120-1095 Qty:	9 VDC 1000mA AC Adapter Your Price: $16.00 (1 review) #120-1060 Qty:	Wired Home WHHCPS High Current Power Supply 12 VDC 1.2A Your Price: $29.74 (1 review) #182-886 Qty:	9 VDC 500mA AC Adapter Your Price: $9.53 #120-1055 Qty:
12 VDC 500mA AC Adapter Your Price: $9.53 (1 review) #120-1105 Qty:	13.5 VDC 1700mA AC Adapter Your Price: $25.92 (1 review) #120-1135 Qty:	12 VDC 500mA Adapter Your Price: $9.53 (1 review) #120-1120 Qty:	13.8 VDC 1000mA Regulated Switching AC Adapter Your Price: $18.00 #120-1140 Qty:
Xantech 781ERGPS Power Supply Your Price: $14.00 (2 reviews) #182-504 Qty:	24 VAC 40VA Transformer Your Price: $16.69 (2 reviews) #120-1175 Qty:	13.8 VAC 1250mA AC Adapter Your Price: $14.45 (1 review) #120-1145 Qty:	Marantz DA660PMD Universal AC Adapter for PMD660 Your Price: $59.00 #245-3594 Qty:
12 VAC 4.17A AC Power Adapter with Screw Terminals Your Price: $23.50 #120-1077 Qty:	Marantz DA670PMD Universal AC Adapter for PMD670/671 Your Price: $59.00 (2 reviews) #245-3596 Qty:	Universal Output Adapter 1000mA Your Price: $10.50 (4 reviews) #120-194 Qty:	9 VDC 500mA AC Adapter Your Price: $5.95 (2 reviews) #120-035 Qty:
9 VDC 300mA AC Adapter Your Price: $5.95 (4 reviews) #120-030 Qty:	Xantech 782ERGPS High Current Regulated Power Supply Your Price: $47.33 #182-506 Qty:	Peavey Battery Elminator 00050070 Your Price: $42.78 #248-8694 Qty: