EMERSON NTQ123 Service Manual

Technical Support: (888) 41-ASTEC or [phone]

Americas: [phone] Europe (UK) 44 (1384) 842-211 Asia (HK) 852-2437-9662

rev 10.19.04

106

Special Features

Electrical Specs

70-120 Watts

NTQ123 Series

• Active power factor correction

• EN61000-3-2 compliance

• Remote sense on outputs one and two

• Power fail and remote inhibit

• Single wire current sharing on outputs one
and two

• Adjustable main outputs

• Built-in Class B EMI filter

• Overvoltage protection

• Overload protection

• Thermal overload protection

Operating temperature: 0° to 50°C ambient; derate
each output at 2.5% per degree from
50° to 70°C

Electromagnetic susceptibility: Designed to meet
EN61000-4, -2, -3, -4, -5, -6, -8, -11 Level 3

Humidity: Operating; non-condensing
5% to 95%

Vibration: Three orthogonal axes, sweep at
1 oct/min, 5 min. dwell at four major resonances

0.7 G peak 5 Hz to 500 Hz, operational

Storage temperature: -40° to 85°C

Temperature coefficient: ± .04% per °C

MTBF demonstrated: >1 million hours at full load
and 25°C ambient conditions

Input

Input range 85-264 VAC
Frequency 47-63 Hz
Inrush current 38 A max., cold start @ 25°C
Efficiency 65% typical at full load
EMI filter FCC Class B conducted and radiated,

CISPR 22 Class B conducted and
radiated, EN55022 Class B conducted
and radiated, VDE 0878 PT3 Class B

conducted and radiated.
Power factor 0.99 typical
Safety ground leakage
current <1 mA @ 50/60 Hz, 264 VAC input

Output

Maximum power 70 W convection,

120 W with 30 CFM forced air
Adjustment range ±5% minimum on outputs one and two
Hold-up time 20 ms @ 120 W load, 120 VAC input
Overload protection Short circuit protection on all outputs.

Case overload protected @ 110-145%

above peak rating
Overvoltage protection 3.3 V and 5 V output: 20% to 35%

above nominal output

Logic Control

Power failure TTL logic signal goes high 100-500

msec after 5 V output; it goes low at

least 4 msec before loss of regulation
Remote inhibit Requires an external TTL Signal to

inhibit outputs
Remote sense Compensates for 0.5 V lead drop

minimum, will operate without remote

sense connected. Reverse connection

protection.

Environmental

Safety

VDE 0805/EN60950 (IEC950) 21310-3336-0004
UL UL1950 E186249
CSA CSA 22.2-234 Level 3 LR109492C
NEMKO EN 60950/EMKO-TUE P98100870

(74-sec) 203

BABT EN60950/EN41003 608497
CB Certificate and report 5009
CE Mark (LVD)

Total Power: 70-120 Watts
Input Voltage: 85-264 VAC
# of Outputs: Quad

EUROPE

Astec House, Waterfront Busin ess Park

Merry Hill, Dudley

West Midlands, DY5 1LX, UK

Telephone: [phone]

Facsimile: 44 (1384) 843-355

AMERICAS

5810 Van Allen Way
Carlsbad, CA 92008

Telephone: [phone]

Facsimile: 760-930-0698

107

www.astecpower.com

Ordering Information

ASIA

Units 2111-2116, Level 21

Tower1, Metroplaza

223, Hing Fong Road

Kwai Fong, New Territories

Hong Kong

Telephone: [phone]

Facsimile: 852-2402-4426

Model Output Minimum Maximum Load with Maximum Load with Peak Regulation2Ripple
Number Voltage Load

4

Convection Cooling 30 CFM Forced Air Load

1

P/P (PARD)

3

NTQ123 +3.3 V 0 A 14 A 25 A 28 A ±2% 50 mV

+5 V 2 A 12.5 A 24 A 28 A ±2% 50 mV
+12 V 0 A 1 A 2 A 4 A ±3% 120 mV

-12 V 0 A 0.5 A 1 A 1.5 A ±3% 120 mV

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 in parallel with a 0.1 μF capacitor at rated line voltage and load ranges.

4. Minimum loads are required. In parallel minimum loads are 2.5 A on the 5 V output and 1 A on the 3.3 V output for each power supply.

Connector

SK1 PIN 1 Ground

PIN 3 Neutral
PIN 5 Live

SK5 PIN 1 +12 V

PIN 2 Common
PIN 3 -12 V

SK6 PIN 1 3.3 V SWP

PIN 2 -3.3 V Sense
PIN 3 +3.3 V + Sense
PIN 4 5 V SWP
PIN 5 COMMON
PIN 6 +5 V Sense
PIN 7 -5 V Sense
PIN 8 + Inhibit
PIN 9 - Inhibit
PIN 10 Power Fail

Mating Connectors

(SK1) AC Input: Molex: 09-50-8051 (USA)

Molex: 09-91-0500 (UK)
PINS: 08-58-0111

SK2,3,4: Molex series 19141-0058/0063

(SK5) ±12V Molex:09-50-8031 (USA)

Molex: 09-91-0300 (UK)
PINS: 08-58-0111

(SK6) Control Signals: Molex: 90142-0010

PINS: 90119-2110
or
Amp: 87977-3
PINS: 87309-8

Astec Connector Kit #70-841-012

Notes:

1. Specifications subject to change without notice.

2. All dimensions in inches (mm), tolerance ±.02”.

3. Remote inhibit requires an external 5 V @ 10 mA
to activate

4. Mounting maximum insertion depth is 0.12”.

5. Warranty: 1 year

6. Weight: 1.38 lb. / .63 kg

Pin Assignments

NTQ123 Series