within 5°C of the specified classification temperature (T
C
)
Ramp-down rate (T
p
to T
smax
)
Time 25°C to peak temperature
Reflow cycles
*Tolerance
for peak profile temperature (T
P
) is defined as a supplier minimum and a user maximum.
Sn-Pb Eutectic
Assembly
100°C
150°C
60 - 120 sec.
3°C/sec. max
183°C
60 - 150 sec.
see Table 1
20 sec.
6°C/sec. max
6 min. max
2 max
Pb-Free
Assembly
150°C
200°C
60 - 120 sec.
3°C/sec. max
217°C
60 - 150 sec.
see Table 2
30 sec.
6°C/sec. max
8 min. max
2 max
**Tolerance
for time at peak profile temperature (t
p
) is defined as supplier minimum and a user maximum.
ATTENTION:
Abracon LLC’s products are COTS – Commercial-Off-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applications. Abracon’s products
are not specifically designed for Military, Aviation, Aerospace, Life-dependent Medical applications or any application requiring high reliability where component failure could result in loss of life
and/or property. For applications requiring high reliability and/or presenting an extreme operating environment, written consent and authorization from Abracon LLC is required. Please contact
When I click a screen button in an evc application (bitmap background) for the first time, a full-screen mode dialog box pops up (with the system default gray background). At this time, the screen ref...
I am making a keyboard driver and want to scan the matrix keyboard at a fixed time. I want to know how to use the timer? Does WINCE have a timing function?...
Global semiconductor industry capacity utilization rate falls to the lowest level in two years2005-05-26 eNet Silicon Valley Power The latest statistics released by the Netherlands Semiconductor Inte...
[align=left][color=rgb(0,0,0)][backcolor=rgb(255,255,255)][color=#333333]Welcome to Power Tips! With today's emphasis on more efficient, lower cost power solutions, we created this column to provide h...
CACTL1=CARSEL+CAREF1+CAON A line of code I saw when I was learning about voltage comparators. The internal control register CACTL1, set the internal reference voltage, select 0.5VCC as the reference v...
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
Editor's note: In order to help technicians or engineers who have knowledge of PIC microcontroller assembly language quickly master the method of using C language to program PIC microcontrollers, t...[Details]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[Details]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
In 2012, more than half of the cars in the European, Japanese and American car markets will be equipped with color displays, navigation systems, satellite communications and other in-vehicle infota...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guangzho...[Details]
The production process of lithium batteries does not mention the previous processes such as material preparation, winding, liquid injection, and packaging, but only talks about the final formation ...[Details]
1 Battery technology determines the fate of energy vehicles
Regardless of whether new energy vehicles are hybrid or pure electric vehicles, they cannot do without the core technology of batter...[Details]
1. Tips for charging UPS for the first time
After purchasing a new UPS, plug the UPS into the 220V mains power grid and charge it for at least 12 hours to ensure that the battery is fully char...[Details]