Ordering Information

Model

Number

Output

Voltage

Minimum

Load

Maximum Load

with Convection

Cooling

Maximum Load

with 30CFM

Forced Air

Ripple

NTS353

12V

0A

16.6A

29.2A

33A

±2%

120mV

NTS355

24V

0A

8.3A

14.6A

16.5A

±2%

240mV

NTS358

48V

0A

4.2A

7.3A

8.2A

±2%

480mV

NTS359

54V

0A

3.7A

6.5A

7.4A

±2%

540mV

1. Peak current lasting <30 seconds with a maximum 10% duty cycle.

2. At 25°C including initial tolerance, line voltage, load currents and output voltages adjusted to factory settings.

3. Peak-to-peak with 20 MHz bandwidth and 10 µF (tantalum capacitor) in parallel with a 0.1 µF capacitor at rated line voltage and

load ranges.

Pin Assignments

Rev. 11.24.08

NTS350 Series

2 of 3

Logic Control

Power failure

TTL logic signal goes high 100-500 msec after main output.

It goes low at least 4 msec before loss of regulation

Remote on/off

Requires an external contact closure to inhibit outputs

DC OK

TTL logic goes high after the output is in regulation. It goes low when there is

loss of regulation.

Remote sense

Compensates for 0.5 V lead drop min. Will operate without remote sense

connected. Reverse connection protected.

Operating temperature:

0° to 50°C ambient derate each output as 2.5% per degree from 50° to

70°C.

Storage temperature:

-40°C to +85°C

Electromagnetic

susceptibility:

designed to meetEN61000-4;

-2, -3, -4, -5, -6, -8, -11 Level 3

Humidity:

Operating; non-condensing 10% to 90% RH

Vibration:

Three orthogonal axes, sweep at

1 oct/min, 5 min. dwell at four major resonances 2 G peak 8 Hz to 500

Hz, operational

MTBF demonstrated

1M hours at full load and 25°C ambient conditions

Environmental Specifications

Embedded Power for

Business-Critical Continuity

Connector

SK1

PIN 1

Line

PIN 3

Neutral

PIN 5

Ground

SK5

PIN 1

V1 swp

PIN 2

- Remote Sense

PIN 3

+ Remote Sense

PIN 4

5VSB (standby)

PIN 5

5VSB return

PIN 6

+12V

PIN 7

Common

PIN 8

Inhibit

PIN 9

DC power good (DC OK)

PIN 10

Power Fail (POK)

Adjustment Potentiometers

P1

+V1 Output adjust

P3

+5VSB adjust

1

5

6

10

Mating Connectors

SK1 AC input

Molex 09-50-8051 (USA)

Molex 09-91-0500 (UK)

PINS:08-52-0113

SK2,3,4

Molex BB-124-08

SK5 Control signals

Molex 90142-0010

PINS: 90119-2110 or

Amp: 87977-3

PINS: 87309-8

Astec Connector Kit #70-841-022 includes all of the above

Notes:

1. Specifications subject to change without

notice.

2. All dimensions in inches (mm), tolerance is

±.02”.

3. Specifications are at factory settings

4. Mountingmaximuminsertiondepthis0.12”.

5. Warranty: 2 year

6. Weight: 2.5 lb. / 1.13 kg.