Rev C

MDW SERIES

20 Watts

DC/DC Converter

Single and Dual Output

1/9/2018

Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •

Fax 603-778-9797

website: www.wallindustries.com • e-mail: sales@wallindustries.com

Page 3 of 8

SPECIFICATIONS

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

See Table

Switching Frequency

360

400

440

kHz

Isolation Voltage

1 Minute

Input to Output

1600

VDC

Input to Case

1600

Output to Case

1600

Isolation Resistance

500VDC

1

G

Ω

Isolation Capacitance

1500

pF

Case Grounding

Connect Case to -Vin with decoupling Y cap

PHYSICAL SPECIFICATIONS

Weight

0.95oz (27g)

Dimensions (L x W x H)

2.0in x 1.0in x 0.40in

(50.8mm x 25.4mm x 10.2mm)

Case Material

Nickel-Coated Copper

Base Material

FR4 PCB

Potting Material

Epoxy (UL94 V-0)

Shielding

Six-Sided

SAFETY & EMC CHARACTERISTICS

Safety Approvals

UL60950-1

EN60950-1

IEC60950-1

EN55022

Class A

Class B

ESD

EN61000-4-2

Air ±8kV

Perf. Criteria B

Contact ±6kV

Radiated Immunity

EN61000-4-3

10 V/m

Perf. Criteria A

EN61000-4-4

±2kV

Perf. Criteria B

Surge

EN61000-4-5

±1kV

Perf. Criteria A

Conducted Immunity

EN61000-4-6

10 Vr.m.s

Perf. Criteria A

Power Frequency Magnetic Field

EN61000-4-8

100A/m continuous; 1000A/m 1 sec

Perf. Criteria A

NOTES

(1)

Typical Value at Nominal Input Voltage and Full Load

(2)

Typical Value at Nominal Input Voltage and No Load

(3)

Maximum Value at Nominal Input and Full Load

(4)

Test by minimum Vin and Constant Resistive Load

(5)

The ON/OFF control pin voltage is referenced to –Vin.

To order negative logic ON/OFF control add the suffix “R” (Ex. MDW48S5-4000R)

(6)

Heat Sink is optional, consult factor for ordering details.

(7)

The MDW Series can meet EN55022 Class A with an external capacitor in parallel with the input pins.

Recommended: 24Vin: NA

48Vin: 1µF/100V

(8)

An external filter capacitor is required if the module has to meet EN61000-4-5.

The filter capacitor Wall Industries suggest: Nippon chemi-con KY series, 220µF/100V, ESR 48m

Ω.

Due to advances in technology, specifications subject to change without notice.