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參數資料
| 型號： | SHM48T40010-PBC0 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件頁數： | 1/37頁 |
| 文件大小： | 697K |
| 代理商： | SHM48T40010-PBC0 |
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SHM48 Series - 40A
Data Sheet
SHM48T40 Family DS Ver 2 03-24-03
USA Toll Free 866 WOW-didt
Page 1 of 37
The new SemiH Family of half brick DC/DC converters
from di/dt provides a high efficiency single output in a size
that is only 70% that of conventional half bricks, while pre-
serving the same pinout and functionality.
The 40A SHM48 Series converters of the SemiH Family
provide thermal performance in high temperature environ-
ments that exceeds most competitors’ 40A half bricks. This
is accomplished through the use of patent pending circuit,
packaging and processing techniques to achieve ultra-high
efficiency, excellent thermal management and a very low
body profile.
Low body profile, smaller size and the preclusion of
heatsinks minimize impedance to system airflow, thus en-
hancing cooling for downstream devices. The use of 100%
automation for assembly, coupled with di/dt’s advanced elec-
tric and thermal design, results in a product with extremely
high reliability.
Operating from a 36-75 V input, the 40A SHM48 Series
converters provide any standard output voltage from 3.3 V
down to 1.0 V. Outputs can be trimmed from –20% to +10%
of the nominal output voltage (±10% for output voltages
1.2 V and 1.0 V), thus providing outstanding design flexibil-
ity.
With a standard pinout and trim equations, the SemiH
Family converters are perfect drop-in replacements for exist-
ing half brick designs, resulting in significant cost savings,
improved thermal performance, and system airflow.
Applications
Telecommunications
Data communications
Wireless
Servers
SHM48T40 Converters
Features
Delivers up to 40 A (132 W)
Industry-standard half brick pinout
Small footprint : 1.700”x 2.300” (3.91 in
2), 30%
smaller than conventional half bricks
Higher current capability at 70C than most com-
petitors’ 40 A half bricks
On-board input differential LC-filter
Outputs available: 3.3, 2.5, 2.0, 1.8, 1.5, 1.2 & 1.0 V
High efficiency – no heatsink required
Start up into pre-biased output
No minimum load required
Lowest profile in industry: 0.339” [8.6 mm]
Lowest weight in industry: 1.3 oz [36 g] typical
Meets Basic Insulation requirements of EN60950
Withstands 100 V input transient for 100 ms
Fixed frequency operation
Fully protected
Remote output sense
Output voltage trim range: +10%/20% with Industry-
standard trim equations (except 1.2 V and 1.0 V out-
puts with trim range ±10%)
High reliability: MTBF of 2.6 million hours, calculated
per Telcordia TR-332, Method I Case 1
Positive or negative logic ON/OFF option
UL 60950 recognized in US and Canada and DEMKO
certified per IEC/EN 60950 (pending)
Meets conducted emissions requirements of FCC
Class B and EN 55022 Class B with external filter
All materials meet UL94, V-0 flammability rating
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