20 Watt NT Single Series DC/DC Converters
Features
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Fully Self Contained, No External Parts
Required for Operation
Low and Specified Input/Output Capacitance
Efficiencies to 85%
Overcurrent Protected and Thermal Shutdown
Circuitry for Long, Reliable Operation
Five-sided, Shielded, Low Thermal
Gradient Copper Case
5 Year Warranty
Water Washable Case Design
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Description
These 20 Watt NT converters are ideal for battery operated
industrial, medical control and remote data collection systems.
They have achieved an exceptionally low input/output
capacitance (290 pF) that is half that of comparable models.
This low capacitance contributes to their exceptional input/
output isolation.
Complete overload protection with independent pulse-by-
pulse current limiting and an overtemperature shutdown
circuit ensure zero-failure rate operation. Each converter is
encased in a five-sided, shielded and sealed water washable
case.
Model
12S3.4000NT
12S5.4000NT
12S12.1700NT
12S15.1400NT
24S3.4000NT
24S5.4000NT
24S12.1700NT
24S15.1400NT
48S3.4000NT
48S5.4000NT
48S12.1700NT
48S15.1400NT
Selection Chart
Input Range
VDC
Min
Max
9
18
9
18
9
18
9
18
18
36
18
36
18
36
18
36
36
72
36
72
36
72
36
72
Output
VDC
3.33
5
12
15
3.33
5
12
15
3.33
5
12
15
Output
mA
4000
4000
1700
1400
4000
4000
1700
1400
4000
4000
1700
1400
20 Watt NT Single Series Block Diagram
A
2401 Stanwell Drive 鈥?Concord, California 94520 鈥?Ph: 925/687-4411 or 800/542-3355 鈥?Fax: 925/687-3333 鈥?www.calex.com 鈥?Email: sales@calex.com
1
3/2001