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Automated Assembly
For high-volume assembly, most users will want to auto-place the modules.
The modules have been designed to maintain compatibility with reflow
processing techniques; however, due to their hybrid nature, certain aspects
of the assembly process are far more critical than for other component
types.
Following are brief discussions of the three primary areas where caution
must be observed.
Reflow Temperature Profile
The single most critical stage in the automated assembly process is the
reflow stage. The reflow profile below should not be exceeded, since
excessive temperatures or transport times during reflow will irreparably
damage the modules. Assembly personnel will need to pay careful
attention to the oven’s profile to ensure that it meets the requirements
necessary to successfully reflow all components while still remaining within
the limits mandated by the modules. Figure 23 shows the
recommended reflow oven profile for the modules.
300
250
200
150
100
50
255°C
235°C
217°C
185°C
180°C
125°C
Recommended RoHS Profile
Max RoHS Profile
Recommended Non-RoHS Profile
0
30
60
90
120
150
180
210
240
270
300
330
360
Time (Seconds)
Figure 23: Maximum Reflow Profile
– 20 –
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相关代理商/技术参数
RXM-418-LR
功能描述:射频模块 RF Receiver 418MHz
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
RXM-418-LR_
功能描述:RECEIVER 418MHZ LR SERIES RoHS:是 类别:RF/IF 和 RFID >> RF 接收器 系列:LR 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 09/Jan/2012 标准包装:50 系列:* 频率:850MHz ~ 2.175GHz 灵敏度:- 数据传输率 - 最大:- 调制或协议:- 应用:* 电流 - 接收:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 特点:- 电源电压:4.75 V ~ 5.25 V 工作温度:0°C ~ 85°C 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘
RXM-418-RM
功能描述:RECEIVER RF 418MHZ RoHS:否 类别:RF/IF 和 RFID >> RF 接收器 系列:RM 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 09/Jan/2012 标准包装:50 系列:* 频率:850MHz ~ 2.175GHz 灵敏度:- 数据传输率 - 最大:- 调制或协议:- 应用:* 电流 - 接收:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 特点:- 电源电压:4.75 V ~ 5.25 V 工作温度:0°C ~ 85°C 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘
RXM430-408
制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC
RXM-433-LC
制造商:未知厂家 制造商全称:未知厂家 功能描述:LC SERIES TRANSMITTER MODULE
RXM-433-LC-P
制造商:未知厂家 制造商全称:未知厂家 功能描述:LC SERIES RECEIVER MODULE DATA
RXM-433-LC-S
功能描述:RECEIVER RF 433MHZ SMT RoHS:否 类别:RF/IF 和 RFID >> RF 接收器 系列:LC 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 09/Jan/2012 标准包装:50 系列:* 频率:850MHz ~ 2.175GHz 灵敏度:- 数据传输率 - 最大:- 调制或协议:- 应用:* 电流 - 接收:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 特点:- 电源电压:4.75 V ~ 5.25 V 工作温度:0°C ~ 85°C 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘
RXM-433-LR
功能描述:射频模块 RF Receiver 433MHz
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm