AC/DC POWER SUPPLIES

250 W AC/DC Universal Input Switch Mode Power Supplies

1

2 YEAR WARRANTY

NLP250 Series

Single output

The NLP250 series offers up to 250 W in a U-Channel power supply. Its form-factor

makes it suitable for use in low-profile applications, such as 1U rack equipment. The

main output channel is compatible with systems that implement distributed power and

point-of-load architectures. It can also be used to power electromechanical devices such

as relays, motors and print-heads. An auxiliary output is also available for those systems

that require "standby" operation. The features of this power supply make it suitable for

use in Information Technology Equipment (ITE) and light industrial systems.

All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.

SPECIFICATIONS

File Name: nlp250.pdf Rev: 29 May 2006

NEW Product

OUTPUT SPECIFICATIONS

Total regulation

Main output

±2.0%

(line and load)

Auxiliary outputs

±5.0%

Turn-on delay

@ 120 Vac Input

2.0 s max.

Transient response

Main output

5.0% or 250 mV

50-100%

max. dev., 1 ms max.

step at 0.5 A/µs

recovery to 1%

Temperature coefficient

±0.02%/°C

Overvoltage protection

Main outputs

115%, ±5%

Short circuit protection

Cyclic operation

Continuous

Minimum output current

Singles

0 A

Auxiliary outputs

5 Vsb

5 V @ 1.0 A

(See Note 8)

12 V (fan)

12 V @ 0.3 A

INPUT SPECIFICATIONS

Input voltage range

Universal input

85-264 Vac

Input frequency range

47-63 Hz

Input surge current

264 Vac (cold start)

40 A max.

Safety ground

264 Vac, 50 Hz

1 mA

leakage current

Input current

120 Vac @ 250 W

2.78 A rms

230 Vac @ 250 W

1.36 A rms

Input fuse

UL/IEC127

T6.3 AH, 250 Vac

Conducted emissions

EN55022, FCC part 15

Level B

Harmonic current

EN61000-3-2

Compliant

Correction

ESD air

EN61000-4-2

Level 3

ESD contact

EN61000-4-2

Level 3

Radiated immunity

EN61000-4-3

Level 3

Fast transients

EN61000-4-4

Level 3

Surge

EN61000-4-5

Level 3

Conducted immunity

EN61000-4-6

Level 3

GENERAL SPECIFICATIONS

Hold-up time

85 Vac @ 60 Hz

20 ms @ 250 W

Efficiency

115 Vac @ 250 W

84% typ.

230 Vac @ 250 W

86% typ.

Isolation voltage

Input/output

3000 Vac

Input/chassis

1500 Vac

Safety approvals

UL/cUL UL60950-1, VDE EN60950-1

(See Note 6)

CAN/CSA22.2 No. 60950-1

Weight

650g (22oz)

MTBF (@ 25 °C)

Telcordia SR-332

317,000 hours min.

MIL-HDBK-217F

158,000 hours min.

Thermal performance

Operating ambient,

0° C to +70 °C

(See derating curve)

Non-operating

-40 °C to +85 °C

0 °C to 50 °C ambient,

250 W

200 LFM forced air

0 °C to 50 °C ambient,

175 W

convection cooled

50 °C to 70 °C ambient, Derate linearly

convection cooled

to 50% load

Relative humidity

Non-condensing

5-95% RH

Altitude

Operating

10,000 feet max.

Non-operating

30,000 feet max.

Vibration (See Note 7)

5-500 Hz

2.4 G rms peak

Shock

per MIL-STD-810E

516.4 Part IV