Rev. E

DCHBW75 Series

4:1 Input Voltage Ranges

Up to 76.8 Watts, Single Outputs

Half-Brick DC/DC Power Converters

Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833

05/21/2013

603-778-2300 www.wallindustries.com Fax 603-778-9797

Page 3 of 8

SPECIFICATIONS: DCHBW75 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

Typ

Max

Unit

GENERAL SPECIFICATIONS

Efficiency

Nominal input voltage and full load

See Table

Switching Frequency

270

300

330

KHz

Input to Output

4242

110VDC Input Models 1 minute (reinforced insulation)

Input (Output) to Case

2121

VDC

Input to Output

2250

Isolation Voltage

Others

1 minute (basic insulation)

Input (Output) to Case

1600

VDC

Isolation Resistance

1

GΩ

Isolation Capacitance

2500

pF

Maximum Capacitive Load

Minimum input and constant resistive load

See Table

ENVIRONMENTAL SPECIFICATIONS

Base-plate

-40

+105

Operating Case Temperature Range

Terminal Block type

-40

+105

°C

Standard

-55

+125

Storage Temperature

Terminal Block type

-40

+105

°C

Relative Humidity

5

95

% RH

Thermal Shock

EN61373, MIL-STD-810F

Vibration

EN61373, MIL-STD-810F

Standard

6.7

With 0.24” Heatsink

5.4

With 0.45” Heatsink

4.7

°C/Watt

BELLCORE TR-NWT-000332

1,010,000 hours

MIL-HDBK-217F

74,160 hours

PHYSICAL SPECIFICATIONS

Standard

3.42oz (97g)

Terminal Block (“T” suffix)

7.05oz (200g)

Weight

Terminal Block with EMC Filter (“TF” suffix)

8.47oz (240g)

Standard

2.4x2.28x0.5 inches (61x57.9x12.7 mm)

Terminal Block (“T” suffix)

3.35x2.4x1.1 inches (85x61x28 mm)

Dimensions (L x W x H)

Terminal Block with EMC Filter (“TF” suffix)

3.35x2.4x1.27 inches (85x61x32.3 mm)

24VDC and 48VDC nominal input models

Metal

Case Material

110VDC nominal input voltage models

Aluminum base-plate with plastic case

Base Material

24VDC and 48VDC nominal input models

FR4 PCB

Potting Material

Silicon (UL94-V0)

Shielding

24VDC and 48VDC nominal input models

Six-sided

SAFETY & EMC CHARACTERISTICS

Safety Approvals

IEC60950-1, UL60950-1, EN60950-1, EN50155 (pending for 110VDC nominal input models)

Standard

EN55011, EN55022

Class A

TF Option

EN55011, EN55022

Class A

Air ±8KV

ESD

EN61000-4-2

Contact ±6KV

Perf. Criteria A

Radiated Immunity

EN61000-4-3

20 V/m

Perf. Criteria A

EN61000-4-4

±2KV

Perf. Criteria A

EN55024

±1KV

Perf. Criteria A

EN61000-4-5

EN50155

±2KV

Perf. Criteria A

Conducted Immunity

EN61000-4-6

10 Vrms

Perf. Criteria A