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January 11, 2019

12VDC and 24VDC (9.5VDC-34VDC) to 8V DC/DC converter

3 amp 12V to 8V DC/DC converter
PST-DCZ series

8 volt DC/DC converters with 9.5V-34V input

din rail mount option
Optional DIN rail mount

These are efficient switching DC converters, designed to allow the use of 8 volt video cameras with 12 volt batteries. The input voltage can be anywhere between 10 volts and 34 volts. These 8V output converters have been designed to be very rugged electrically and can be operated continuously over a wide temperature range -40°C to 75°C (65°C for the 5A version).

These are also known as 8 volt voltage reducers, and voltage regulators.
Custom output voltages are available from 3.3VDC to the input voltage minus 1.5 volts (10.5VDC for a 12 volt input, 22.5 for a 24 volt input)

PST-DCZ0803 8V 3A
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Quantity Price
1-49 $47.60
50-99 $39.70
100-199 $35.08
200+ $33.00
 
PST-DCZ0805 8V 5A
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Quantity Price
1-49 $57.60
50-99 $47.00
100-199 $40.00
200+ $38.20
 
 
PST-DCZ0803-W
weather resistant 8V 3A
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Quantity Price
1-49 $61.00
50-99 $50.80
100-199 $44.95
200+ $42.25
 
PST-DCZ0805-W
weather resistant 8V 5A
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Quantity Price
1-49 $73.80
50-99 $61.50
100-199 $54.40
200+ $51.10
 
Optional DIN mounting hardware
reverse view of DIN rail mounting
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Quantity Price
1-49 $3.50
50-99 $2.50
Includes screws and
hardware for both
35mm and 15mm DIN rails

(does not include the rail)
 
Optional connectors Price
ZHJX002
adapters with a barrel connector input and screw terminal output
5.5 x 2.1 mm barrel socket
$2.50 each
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SDY-C52M
5.5 x 2.1 mm barrel plug to screw terminal adapter
5.5 x 2.1 mm barrel plug
$2.50 each
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Electrical Specifications

  3 Amp version 5 Amp Version

Output Voltage

8 VDC ± 0.1 VDC

8 VDC ± 0.1 VDC

Readily Available Custom Output Voltages

3VDC to 8VDC 3VDC to 8VDC

Maximum steady state input voltage range

9.5 VDC to 34 VDC

**

9.5 VDC to 34 VDC

**

Nominal continuous output current when input voltage is between 8VDC and 20VDC

3.0A

5.0A

Line regulation

± 0.5%

± 0.5%

Load regulation

± 1.0%

± 1.0%

Minimum input voltage for load regulation of 10 %, see Note 1

10.5 VDC (1 minute duration)

10.5 VDC (1 minute duration)

Maximum output ripple

10mV p-p

25mV p-p

Maximum switching noise level

90mV p-p

90mV p-p

Maximum operating temperature range 

-40°C to 75°C (-40°F to 167°F)

-40°C to 65°C (-40°F to 149°F)

Maximum storage temperature range

-40°C to 90°C (- 40°F to 194°F)

-40°C to 90°C (- 40°F to 194°F)

Minimum efficiency, see Figure 1

78% 24 VDC input, 0.15A load

77% 24 VDC input, 1A load

Maximum efficiency, see Figure 1

89% 12 VDC input, 1.0A load

88% 12 VDC input, 1.0A load

Isolation

Common ground, the negative input is tied to the negative output. The frame is isolated.

Data sheets PST-DCZ0803
PST-DCZ0805

Physical Specifications for both models

Weight

108 grams or about 3.8 ounces

Dimensions

Length

Width

Height

120mm (4.73 inches)

55mm (2.17 inches)

33mm (1.30 inches)

Protection

Over temperature protection

If an extreme over temperature condition occurs the unit will shut down until the temperature is reduced. See Note 3.

Reverse polarity protection

If an in-line 4A fast acting fuse (5A for the 5A model) is connected as shown in Figure 2, then the unit will be protected from reverse polarity connection.  If the fuse is used and there is a reverse polarity connection, the fuse will blow and protect the unit from damage. See Note 4.

Overload protection 

If there is a short circuit connection or other overload connection is sensed, the unit will automatically limit the output current and, depending on severity, will go into a hiccup mode. See Note 2. 

**Note: the efficiency drops when the input voltage is above 28 volts, derating either the maximum ambient temperature or output current is appropriate when operating at the higher voltages

Connections

 

Input connector

2 position screw terminal block will accept 14awg to 24 awg wire

 

Output connector

2 position screw terminal block will accept 14awg to 24 awg wire

 
Input and output connectors for weather resistant versions 18AWG Red and Black wires, 6 inches (15 cm) long  
Pinout There are two screw terminals on the input, and two screw terminals on the output. These are on opposite sides of the converter.  

Full Data Sheets

8VDC 3Amp DC/DC converter data sheet

8VDC 5Amp DC/DC converter data sheet


Note 1: Extended operation at voltages less than 8.0 VDC is not recommended although the unit will work at voltages lower than this with reduced load regulation. With voltages lower than 7.0 VDC, output voltage will drop out until the voltage is increased.

Note 2: If an overload is sensed, the unit will automatically limit the output current and reduce the output voltage. If the output voltage is excessively reduced to limit current, the unit will go into a hiccup mode and wait until the overload is removed to restore power. This dual-mode overload protection system allows the unit to be protected from continuous short circuit connection and other overload conditions.

Note 3: Extended operation at temperatures above 75°C can damage the unit and will void the warranty.

Note 4: If the in-line 4A fast-acting fuse is not connected as shown in Figure 2, a reverse polarity connection can damage the unit and will void the warranty.

DIN Rail Mount Option

din rail mount reverse view of DIN rail mounting
DIN rail mount Optional mounting hardware for 35mm or 15mm DIN rails. Rail not included.

Typical efficiency curve for the 5VDC 3Amp version
efficiency curves of the DC converter

Efficiency curves for the 5VDC 5Amp DC-DC converter


efficiency curve for the 5volt 5amp dc converterconnection diagram of the DCZ series DC converters


Dimensioned drawing of the DCZ series DC converter

Advantages:

OEM Battery Chargers Inexpensive Switchmode DC/DC Converter.

OEM Battery Chargers High efficiency.

OEM Power Supplies Excellent line and load regulation.

Universal Power Input OEM Power Supplies and OEM Battery Chargers Wide input voltage range.


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12 to 8 volt DC/DC converter, 12V to 8V DC Converter

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1163 South 1680 West
Orem Utah 84058

Phone: 801-764-9060
Fax: 801-764-9061

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