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December 13, 2017

24 volt input laptop adapter, 16V, 18V, 19V, 20V, 21V, 22V Volt DC/DC Converter, 5 amps up to 100 Watt output

(Adjustable DC laptop adapter)
24V to 19V DC converter

Very reliable, inexpensive switchmode, regulated DC/DC converter adjustable to various voltages. 5 Amp output.

This is a single output DC/DC laptop adapter with 24V or 28V input. It uses barrel connectors for input and output. Input voltage up to 34 volts. It is adjustable by an externally accessible potentiometer between 12V and 22V as long as the input voltage is at least 0.5V higher than the output voltage. These switchmode voltage reducers can power a wide variety of DC input products from 24 volt and 28 volt trucks, wheelchairs, heavy equipment, and aircraft cigarette lighter power points.

These are able to run laptops in 24V and 28V equipment, including 24V wheel chairs, or others with input voltage up to 34 volts.

The PST-DC2920H DC converter works fine in either 28 volt or 24 volt vehicles.

Price $59.95 each
Quantity 1-20 21-100 101-500 501+
Price Each $59.95 $54.50 $49.60 $45.00
PST-DC2920H-16V 5 Amp DC/DC converter with two cords and barrel connector assortment
24V to 19V DC converter
16V 80W add_to_cart.gif
PST-DC2920H-18V 5 Amp DC/DC converter with two cords and barrel connector assortment
24V to 19V DC converter
18V 90W add_to_cart.gif
PST-DC2920H-19V 5 Amp DC/DC converter with two cords and barrel connector assortment
24V to 19V DC converter
19V 95W
19.5V
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PST-DC2920H-20V 5 Amp DC/DC converter with two cords and barrel connector assortment
24V to 19V DC converter
20V 100W add_to_cart.gif
PST-DC2920H-21V 5 Amp DC/DC converter with two cords and barrel connector assortment
24V to 19V DC converter
21V 100W add_to_cart.gif
PST-DC2920H-22V 5 Amp DC/DC converter with two cords and barrel connector assortment
24V to 19V DC converter
22V 100W add_to_cart.gif
adapters with a barrel connector input and screw terminal output
To adapt the barrel connector to screw terminals on the INPUT cable
ZHJX002 $2.50 each
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cigarette lighter plug on one end, 5.5 x 2.1 mm barrel plug on the other
This cigarette lighter plug adapter has a 2A fuse, so it is applicable to low power applications. For example if the input voltage is 24V then 2Amps*24Volts*0.8efficiency = 38 Watts output maximum.  
Price $2.25 each
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SDY-C53F-2.5
adapters with a barrel connector input and screw terminal output
5.5 x 2.5 mm barrel socket
To adapt the barrel connector to screw terminals on the OUTPUT cable
$2.50 each
add_to_cart.gif

Specifications
Model Number PST-DC2920H DC/DC Converters
Country of origin USA, NAFTA eligible
Function Switchmode voltage reducing converter
Input Voltage Range 20V to 34 VDC
Peak Output Power Up to 100 Watts (limited to 5 amps output)
Peak Output Current 5 Amps output
Output Voltage Nominal User or factory adjustable single output 12V-22 Volts
Output Voltage Typical 16V, 19V, 20V, 21V, 22V others available, user adjustable (see diagram below)
Voltage Adjust There is a trim pot accessible from the outside of the case
No-Load Overhead 10 to 30 mA is drawn from the battery when no load is connected
Connectors Input connector is a 5.5x2.1 mm barrel socket
Output connector is a 5.5x2.5 mm barrel socket
The two included cables are identical, with a 5.5x2.1mm barrel plug on one end and a 5.5x2.5 mm barrel plug on the other end. The cables are 16AWG zip cord and 20 inches long.
Barrel plug adapters fit on the end of the output cable
Line Regulation ± 0.5%
Load Regulation ± 1%
Efficiency 77% 24 VDC input, 1A load
Automotive surge protection Withstands the standard 80 volt load dump test.
Isolation Non-isolated, common ground, spikes on the positive side are eliminated
Dimensions 105 x 65 x 30 mm
4.2 x 2.6 x 1.2 inches without cables
Input wire gauge and length AWG16, 20 inches, 500 mm, zip cord
Output wire gauge and length AWG 16, 20 inches, 500 mm, zip cord
Weight 0.3 lbs, 123 grams, 4.4 ounces without cables

This plug adapters are included. They fit on the output cable only.
plugset
  • 2.35 OD x 0.7 ID Barrel
  • 3.0 OD x 1.1 ID Barrel
  • 3.5 OD x 1.35 ID Barrel
  • 4.0 OD x 1.7 ID Barrel
  • 4.75 mm OD x 1.75 mm ID Barrel EIAJ-03
  • 5.0 mm OD x 3.5 mm ID with center pin
  • 5.5 mm OD x 1.5 mm ID type 2 Barrel
  • 5.5 mm OD x 2.5 mm ID Barrel
  • 6.3 OD x 3.0 ID center pin Barrel
  • 6.0 OD x 4.4 ID center pin Barrel
  • 7.4 mm OD x 5.0 center pin ID Barrel
  • 7.9 OD x 5.6 ID center pin Barrel
efficiency curve for the 5volt 5amp dc converter
Efficiency curves

Voltage adjustment access hole


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