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
You want to control the actuator to perform corresponding actions according to the speed of the arm swinging from left to right.At first, I thought of using infrared light to set up two detection poin...
1. The function of the circuit, the difference and similarity with the filter. 2. Analyze the voltage change process of the differential and integral circuits, and draw the voltage change waveform. 3....
Dear brothers and sisters, I am a novice who wants to learn embedded systems. I only know a little bit about embedded systems. I want to buy a development board to learn by myself, but I don’t know wh...
I don't know why the development board I got couldn't connect to WiFi, and I almost suspected that there was something wrong with the WiFi at home. In desperation, I decided to re-flash the board, so ...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
Hardware designers have begun to adopt FPGA technology in high-performance DSP designs because it can provide 10-100 times faster computing than PC-based or microcontroller-based solutions. Previou...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[Details]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[Details]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
On the afternoon of July 10, Beijing time, Taiwan's largest chip designer MediaTek expects its smartphone chip shipments to grow by double digits in the third quarter of this year, and the company is ...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
Corelink Semiconductor has launched the CL1100-based 5-7W E27 LED lighting driver system solution DB2. This driver module meets the requirements of small size (L×W×H=5.1cm×2.1cm×1.8cm), low standby...[Details]
Abstract: In order to realize wireless automatic alarm and monitoring of major safety places, based on the basic principle of pyroelectric infrared sensing, a detector for receiving infrared radia...[Details]
The overall operating performance of an electric car depends first on its battery system and motor drive system. The drive system of an electric car is generally composed of three main parts: a con...[Details]
1 Introduction to the overall system solution
The hardware part is mainly used to amplify the sound. When the sound is loud enough, the signal can be introduced into the microcontroller for de...[Details]