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DATASHEET
Rev. B
DCHF70W SERIES
2:1 Input Voltage Ranges
12, 15, 24, & 48VDC Single Outputs
70.5~72 Watts Output Power
DC/DC Chassis Mount Power Converters
FEATURES
 Single Output
 RoHS Compliant
 ±10% Voltage Adjustment Range
 Free Air Convection
 2:1 Input Voltage Ranges
 High Reliability
 Built-in EMI Filter
 70.5~72 Watts Output Power
 Short Circuit and Over Load Protected
 Dimensions: 6.30” x 3.86” x 1.54”
Dimensions (Optional): 5.75” x 3.19” x 1.50”
DESCRIPTION
The DCHF70W series of DC/DC power converters offers up to 72W of output power in a 6.30” x 3.86” x 1.54” enclosed
case. This series has 2:1 input voltage ranges of 18-36VDC, 36-72VDC, and 72-144VDC. The DCHF70W series also has
12V, 15V, 24V, and 48VDC single outputs available. Some features include ±10% output adjustability, a built-in EMI
filter, and over load and short circuit protection. These supplies are also RoHS compliant.
05/24/2011
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 1 of 4
DCHF70W Series
Up to 72 Watts
Single Outputs
DC/DC Chassis Mount Power Converters
Rev. B
SPECIFICATIONS: DCHF70W Series
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
TEST CONDITIONS
Min
Nom
Max
24VDC nominal input models
18
24
36
48VDC nominal input models
36
48
72
110VDC nominal input models
72
110
144
Unit
INPUT SPECIFICATIONS
Input Voltage Range
VDC
OUTPUT SPECIFICATIONS
Output Voltage
See Table
Output Voltage Adjustment Range
Line Regulation
Full load
-10
+10
%
≤ -0.5
≤ +0.5
%
Load Regulation
0.5
%
Output Current
See Table
Output Power
See Table
Ripple & Noise
See Table
PROTECTION
Over Load Protection
110
Short Circuit Protection
150
%
Yes
GENERAL SPECIFICATIONS
Efficiency
See Table
Input to Output
Withstand Voltage
Input to FG
Isolation Resistance
1000
All for 1 minute
VDC
1000
Output to FG
500
At 500VDC
> 100
MΩ
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature
-10
+50
°C
Operating Humidity (non-condensing)
20
90
% RH
Storage Temperature
-20
+85
°C
Storage Humidity (non-condensing)
20
95
% RH
Cooling Method
Free air convection
PHYSICAL SPECIFICATIONS
Dimensions (L x W x H)
Standard
6.30” x 3.86” x 1.54” (160 x 98 x 39 mm)
Optional
5.75” x 3.19” x 1.50” (146 x 81 x 38 mm)
Weight
15.9oz (450g)
SAFETY & EMC CHARACTERISTICS
Safety Standards
Design refer to LVD
EMC Standards
Design refer to EN55022, EN61000-4
05/24/2011
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 2 of 4
DCHF70W Series
Up to 72 Watts
Single Outputs
DC/DC Chassis Mount Power Converters
Rev. B
MODEL SELECTION TABLE
Model
Input Voltage
Output Voltage
Output Current
Ripple & Noise
Output Power
Efficiency
12 VDC
6.0 A
120mVp-p
72W
72%
DCHF70W-SD24-12
DCHF70W-SD24-15
24 VDC
15 VDC
4.7 A
150mVp-p
70.5W
72%
DCHF70W-SD24-24
(18 – 36 VDC)
24 VDC
3.0 A
150mVp-p
72W
76%
DCHF70W-SD24-48
48 VDC
1.5 A
200mVp-p
72W
82%
DCHF70W-SD48-12
12 VDC
6.0 A
120mVp-p
72W
72%
DCHF70W-SD48-15
48 VDC
15 VDC
4.7 A
150mVp-p
70.5W
72%
DCHF70W-SD48-24
(36 – 72 VDC)
24 VDC
3.0 A
150mVp-p
72W
76%
DCHF70W-SD48-48
48 VDC
1.5 A
200mVp-p
72W
82%
DCHF70W-SD110-12
12 VDC
6.0 A
120mVp-p
72W
72%
DCHF70W-SD110-15
110 VDC
15 VDC
4.7 A
150mVp-p
70.5W
72%
DCHF70W-SD110-24
(72 – 144 VDC)
24 VDC
3.0 A
150mVp-p
72W
76%
48 VDC
1.5 A
200mVp-p
72W
82%
DCHF70W-SD110-48
MECHANICAL DRAWING
Unit: inches (mm)
0.87 (22)
4.61 (117)
PIN CONNECTIONS
0.41
(10.5)
0.75 (19)
0.71
(18)
3 - M3
0.18
(4.5)
5.98 (152)
1.30 (33)
2
4 - M3
DC Input (V-)
DC Input (V+)
3
FG
4,5
DC Output (V-)
6,7
DC Output (V+)
_
+
3
5
6
-V
+V
+V
7
0.94 (24)
-V
DC
OUTPUT
4
1.26 (32)
3.37 (85.5)
3.86 (98)
0.32
(8.25)
1
Assignment
1
2
Screw Size: M3*6
DC
INPUT
5.91 (150)
0.14 (3.5)
0.26
(6.5)
0.14 (3.5)
Pin No
0.47 (12)
1.12 (28.5)
0.28
(7)
1.54 (39)
Ø0.14
(Ø3.5)
3.07 (78)
Ø0.14 (Ø3.5)
6.30 (160)
05/24/2011
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 3 of 4
Rev. B
DCHF70W Series
Up to 72 Watts
Single Outputs
DC/DC Chassis Mount Power Converters
COMPANY INFORMATION
Wall Industries, Inc. has created custom and modified units for over 50 years. Our in-house research and development
engineers will provide a solution that exceeds your performance requirements on-time and on budget. Our ISO9001-2008
certification is just one example of our commitment to producing a high quality, well-documented product for our customers.
Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working
closely with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to
provide ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss
your future projects.
Contact Wall Industries for further information:
Phone:
Toll Free:
Fax:
E-mail:
Web:
Address:
05/24/2011
(603)778-2300
(888)597-9255
(603)778-9797
sales@wallindustries.com
www.wallindustries.com
5 Watson Brook Rd.
Exeter, NH 03833
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 4 of 4