參數(shù)資料
型號(hào)： JW100A1
元件分類： DC/DC變換器
英文描述： Power Modules: dc-dc Converters; 36 to 75 Vdc Input, 5 Vdc Output; 50 W to 150 W
中文描述： 電源模塊：型DC - DC轉(zhuǎn)換器，36至75伏直流電輸入，5伏直流電輸出，50瓦至150瓦
文件頁(yè)數(shù)： 15/20頁(yè)
文件大?。?/td> 1036K
代理商： JW100A1
Tyco Electronics Corp
15
Data Sheet
July 1999
dc-dc Converters; 36 to 75 Vdc Input, 5 Vdc Output; 50 W to 150 W
JW050A, JW075A, JW100A, JW150A Power Modules:
Thermal Considerations
(continued)
Heat Transfer with Heat Sinks
The power modules have through-threaded, M3 x 0.5
mounting holes, which enable heat sinks or cold plates
to attach to the module. The mounting torque must not
exceed 0.56 N-m (5 in.-lb.). For a screw attachment
from the pin side, the recommended hole size on the
customer’s PWB around the mounting holes is
0.130 ± 0.005 inches. If a larger hole is used, the
mounting torque from the pin side must not exceed
0.25 N-m (2.2 in.-lb.).
Thermal derating with heat sinks is expressed by using
the overall thermal resistance of the module. Total mod-
ule thermal resistance (
θ
ca) is defined as the maximum
case temperature rise (
T
C, max
) divided by the module
power dissipation (P
D
):
The location to measure case temperature (T
C
) is
shown in Figure 26. Case-to-ambient thermal resis-
tance vs. airflow is shown, for various heat sink config-
urations and heights, in Figure 32. These curves were
obtained by experimental testing of heat sinks, which
are offered in the product catalog.
8-1153 (C)
Figure 32. Case-to-Ambient Thermal Resistance
Curves; Either Orientation
These measured resistances are from heat transfer
from the sides and bottom of the module as well as the
top side with the attached heat sink; therefore, the
case-to-ambient thermal resistances shown are gener-
ally lower than the resistance of the heat sink by itself.
The module used to collect the data in Figure 32 had a
thermal-conductive dry pad between the case and the
heat sink to minimize contact resistance. The use of
Figure 32 is shown in the following example.
Example
If an 85 °C case temperature is desired, what is the
minimum airflow necessary Assume the JW100A
module is operating at V
I
= 54 V and an output current
of 20 A, maximum ambient air temperature of 40 °C,
and the heat sink is 1/2 inch.
Solution
Given: V
I
= 54 V
I
O
= 20 A
T
A
= 40 °C
T
C
= 85 °C
Heat sink = 1/2 in.
Determine P
D
by using Figure 30:
P
D
= 17 W
Then solve the following equation:
Use Figure 32 to determine air velocity for the 1/2 inch
heat sink.
The minimum airflow necessary for the JW100A mod-
ule is 1.3 m/s (260 ft./min.).
θ
ca
T
C max
,
D
-------P
T
C
-------P
T
A
–
(
)
D
=
=
0
0.5
(100)
1.0
(200)
1.5
(300)
2.0
(400)
2.5
(500)
3.0
(600)
0
1
5
6
7
8
AIR VELOCITY, m/s (ft./min.)
4
3
2
1 1/2 IN. HEAT SINK
1 IN. HEAT SINK
1/2 IN. HEAT SINK
1/4 IN. HEAT SINK
NO HEAT SINK
C
R
θ
C
°
C
θ
ca
T
C
-------P
T
A
–
(
)
D
=
θ
ca
85
-----------------------
40
–
(
)
17
=
θ
ca
2.6 °C/W
=
相關(guān)PDF資料
PDF描述
K2400G silicon bilateral voltage triggered switch
K2400S silicon bilateral voltage triggered switch
K2400E70 silicon bilateral voltage triggered switch
K2400F1 silicon bilateral voltage triggered switch
K3000F1 silicon bilateral voltage triggered switch
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
JW100A1-53 制造商:LUCENT TECH / TYCO 功能描述:
JW100B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC-to-DC Voltage Converter
JW100B1 功能描述:DC/DC轉(zhuǎn)換器 12V 8.3A 100W 9-Pin RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
JW100B1-53 制造商:LUCENT TECH / TYCO 功能描述:
JW100C 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC-to-DC Voltage Converter
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*