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參數(shù)資料
| 型號： | PKM4118HCPINB |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 105 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 9/18頁 |
| 文件大?。?/td> | 1092K |
| 代理商： | PKM4118HCPINB |
1
EN/LZT 146 035 R7A Ericsson Power Modules, February 2007
PKM 4000C Datasheet
Reliability
Quality Statement
The PKM 4000C series DC/DC converters are designed
and manufactured in an industrial environment where
quality systems and methods like ISO 9000, 6
σ (sigma),
and SPC are intensively in use to boost the continuous
improvements strategy. Infant mortality or early failures
in the products are screened out and they are subjected
to an ATE-based final test . Conservative design rules,
design reviews and product qualifications, plus the high
competence of an engaged work force, contribute to the
high quality of our products .
Limitation of Liability
Ericsson Power Modules does not make any other
warranties, expressed or implied including any warranty of
merchantability or fitness for a particular purpose (including,
but not limited to, use in life support applications, where
malfunctions of product can cause injury to a person's
health or life) .
The PKM 4000C Series DC/DC converters are intended
for through hole mounting on a Pcb . When wave soldering
is used max temperature on the pins are specified to
215°C for 10 seconds . Maximum preheat rate of 4°C/s is
suggested . When hand soldering is used a thermocouple
needs to be mounted on the DC/DC converter pins to verify
that pin temperatures does not exceed 215°C for longer
time than 10 seconds with the used soldering tools .
No-clean flux is recommended to avoid entrapment of
cleaning fluids in cavities inside of the DC/DC power
module . The residues may affect long time reliability and
isolation voltage .
Soldering Information
The Mean Time Between Failure (MTBF) of the PKM 4000C
series DC/DC converter is calculated at full output power
and an operating ambient temperature (TA) of +40°C .
Different methods could be used to calculate the predicted
MTBF and failure rate which may give different results .
Ericsson Power Modules currently uses two different
methods, Ericsson failure rate data system DependTool and
Telcordia SR332 .
Predicted MTBF for the PKM 4000C series products is:
2 .7 million hours according to DependTool .
1 .4 million hours according to Telcordia SR332, issue 1,
Black box techique .
The Ericsson failure rate data system is based on field
tracking data . The data corresponds to actual failure
rates of components used in Information Technology
and Telecom (IT&T) equipment in temperature controlled
environments
(TA = -5 . . .+65°C) . Telcordia SR332 is a commonly used
standard method intended for reliability calculations in IT&T
equipment . The parts count procedure used in this method
was originally modeled on the methods from MIL-HDBK-
217F, Reliability Predictions of Electronic Equipment . It
assumes that no reliability data is available on the actual
units and devices for which the predictions are to be
made, i .e . all predictions are based on generic reliability
parameters .
Delivery Package Information
PKM 4000C series standard delivery package is a 20 pcs box .
(one box contains 1 full tray and 1 hold down tray)
Clamshell Specification
Material:
Polystyrene (PS)
Max surface resistance:
10 MOhm/sq
Color:
black
Capacity:
20 pcs/tray
Loaded tray stack pitch:
38 mm (1 .50 In)
Weight:
138 g (typ)
Compatibility with RoHS requirements
The products are compatible with the relevant clauses
and requirements of the RoHS directive 2002/95/EC and
have a maximum concentration value of 0 .1% by weight
in homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0 .01% by weight in
homogeneous materials for cadmium .
Exemptions in the RoHS directive utilized in Ericsson Power
Modules products include:
Lead in high melting temperature type solder (used to
solder the die in semiconductor packages)
Lead in glass of electronics components and in electronic
ceramic parts (e .g . fill material in chip resistors)
Lead as an alloying element in copper alloy containing
up to 4% lead by weight (used in connection pins made of
Brass)
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