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Электронный компонент: 12D12.125SML

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A
3 Watt SML Dual Series DC/DC Converters
2401 Stanwell Drive Concord, California 94520 Ph: 925/687-4411 or 800/542-3355 Fax: 925/687-3333 www.calex.com Email: sales@calex.com
1
3/19/2004, eco# 040727-3, eco# 041007-1, eco #051004-1
Features
SMT Technology
2:1 Input Range
High Efficiency up to 83%
I/O Isolation 1500VDC
Short Circuit Protected
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A
3 Watt SML Dual Series DC/DC Converters
2401 Stanwell Drive Concord, California 94520 Ph: 925/687-4411 or 800/542-3355 Fax: 925/687-3333 www.calex.com Email: sales@calex.com
2
3/19/2004, eco# 040727-3, eco# 041007-1, eco #051004-1
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3 Watt SML Dual Series DC/DC Converters
2401 Stanwell Drive Concord, California 94520 Ph: 925/687-4411 or 800/542-3355 Fax: 925/687-3333 www.calex.com Email: sales@calex.com
3
3/19/2004, eco# 040727-3, eco# 041007-1, eco #051004-1
NOTES
(1)
Specifications typical at Ta=+25C, resistive load, nominal input
voltage, rated output current unless otherwise noted.
(2)
Transient recovery time is measured to within 1% error band for
a step change in output load 50% to 75%
(3)
When measuring output ripple & noise, an external 0.1F
ceramic capacitor is recommended to be placed from each
output to common.
(4)
Specifications subject to change without notice.
(5)
Requires minimum load to regulate. No harm to the unit when
operated at less than minimum load.
(6)
Unit will require 10 VDC to start.
(7)
External fusing should be used for system protection due to
catastrophic failure. See Calex Application Notes for information
on fusing.
(8)
Water Washability - Calex DC/DC converters are designed to
withstand most solder/wash processes. Careful attention should
be used when assessing the applicability in your specific
manufacturing process. Converters are not hermetically sealed.
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APPLICATIONS
Start-up: A minimum load is required for the SML to have a
nominal output. The specification indicates a minimum load of
10% of the maximum load, but will usually start with less. The
type of load will also vary the start-up characteristics. Such as
an electronic load or some types of active circuitry (vs. a pure
resisitive load) will require more load for start-up.
Each application should be verified and an additional resistive
load added if needed.
The output may be in a burp mode (output pulsing) with less
than a minimum load, causing the output voltage to vary.
A
3 Watt SML Dual Series DC/DC Converters
2401 Stanwell Drive Concord, California 94520 Ph: 925/687-4411 or 800/542-3355 Fax: 925/687-3333 www.calex.com Email: sales@calex.com
4
3/19/2004, eco# 040727-3, eco# 041007-1, eco #051004-1
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Mechanical Configuration
Typical Application
Derating Curve
Connecting Pin Patterns
Denotes
Pin 1
0.15
All dimensions are typical in inches (mm).
Tolerance X.XX = +/- 0.01 (+/- 0.25)
0.10
(2.54)
0.70
(17.8)
1.27
(32.3)
0.02
(0.5)
0.02 (0.5)
0.36 (9.1)
0.085 (2.16)
0.58 (14.8)
0.63 (16.1)
0.74 (18.8)
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