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November 1, 2018

Robust 12VDC and 24VDC input (8VDC to 34VDC) to 6V DC/DC converter with wide temperature range

3 amp 12V to 6V DC/DC converter
PST-DCZ series
6 volt output DC-DC converters with 8 to 34 VDC input din rail mount option
Optional DIN rail mount

These are regulated switching power converters (switchmode), designed to allow the use of 6VDC equipment in 12V or 24V vehicles. These 6V output converters have been designed to be very rugged electrically and can be operated continuously at 75°C (65°C for the 5A version).

These are also known as 6 volt voltage reducers, and voltage regulators.
Custom output voltages are available from 3.3VDC to the value [input voltage minus 1.5 volts] (10.5VDC for a 12 volt input, 22.5 for a 24 volt input)
PST-DCZ0603 6Volt 3Amp
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Quantity Price
1-49 $47.60
50-99 $39.70
100-199 $35.08
200+ $33.00
 
PST-DCZ0605 6Volt 5Amp
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Quantity Price
1-49 $57.60
50-99 $47.00
100-199 $40.00
200+ $38.20
 
 
PST-DCZ0603-W
weather resistant 6V 3A
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Quantity Price
1-49 $61.00
50-99 $50.80
100-199 $44.95
200+ $42.25
 
PST-DCZ0605-W
weather resistant 6V 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 $3.00
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

6.0 VDC ± 0.1 VDC

6.0 VDC ± 0.1 VDC

Readily Available Custom Output Voltages

3VDC to 9VDC 3VDC to 9VDC

Maximum steady state input voltage range

8 VDC to 34 VDC

**

8 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%

Maximum output ripple

10mV p-p

25mV p-p

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

7 VDC (1 minute duration)

7 VDC (20% sag) (1 minute duration)

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.

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

Protection

Over temperature protection

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

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. 

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.

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)

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

5VDC 3Amp DC/DC converter data sheet

5VDC 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 75C 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.

Typical efficiency curve for the 5VDC 3Amp modelefficiency 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

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.

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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  1. 12 to 6 volt DC/DC converter
  2. 24V to 6V DC-DC inverter

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Lund Instrument Engineering, Inc. All rights reserved. by Mark W. Lund

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