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参数资料
| 型号： | B57261V2223J60 |
| 厂商： | EPCOS Inc |
| 文件页数： | 8/18页 |
| 文件大小： | 0K |
| 描述： | THERMISTOR NTC 22K OHM 5% SMD |
| 产品目录绘图： | NTC Surface Mount Side 1 NTC Surface Mount Side 2 |
| 标准包装： | 1 |
| 系列： | B572**V |
| 在 25°C 时的电阻（欧姆）： | 22k |
| 电阻公差： | ±5% |
| B 值公差： | ±3% |
| B25/50： | 4473K |
| B25/85： | 4548K |
| B25/100： | 4575K |
| 工作温度： | -55°C ~ 125°C |
| 功率 - 最大： | 150mW |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 0402（1005 公制） |
| 包装： | 标准包装 |
| 其它名称： | 495-3041-6 |
Temperature measurement and compensation
SMD NTC thermistors, case size 0402 (1005)
Mounting instructions
B572**V2
1
1.1
Soldering
SMD NTC thermistors
SMD NTC thermistors can be provided with a nickel barrier termination or on special request with
silver-palladium termination. The usage of mild, non-activated fluxes for soldering is recommend-
ed as well as a proper cleaning of the PCB.
Nickel barrier termination
The nickel barrier layer of the silver/nickel/tin termination (see figure 1) prevents leaching of the
silver base metalization layer. This allows great flexibility in the selection of soldering parameters.
The tin prevents the nickel layer from oxidizing and thus ensures better wetting by the solder. The
nickel barrier termination is suitable for all commonly-used soldering methods.
Figure 1
SMD NTC thermistors, structure of nickel barrier termination
1.1.1
Solderability (test to IEC 60068-2-58)
Preconditioning: Immersion into flux F-SW 32.
Evaluation criterion: Wetting of soldering areas ≥ 95%.
Solder
SnPb 60/40
SnAg (3.0 ... 4.0), Cu (0.5 ... 0.9)
Bath temperature ( ° C)
215 ± 3
245 ± 3
Dwell time (s)
3
3
1.1.2
Resistance to soldering heat (test to IEC 60068-2-58)
Preconditioning: Immersion into flux F-SW 32.
Evaluation criterion: Leaching of side edges ≤ 1/3.
Solder
Bath temperature ( ° C)
Dwell time (s)
SnPb 60/40
SnAg (3.0 ... 4.0), Cu (0.5 ... 0.9)
260
260
5
5
10
10
Please read Cautions and warnings and
Important notes at the end of this document.
Page 8 of 18
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| B57261V2333J 60 | 制造商:TDK-EPC 功能描述:NTC THERMISTOR 0402 33K J60 B-4575 - Tape and Reel |
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