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| 型号： | NCP15XW682J03RC |
| 厂商： | Murata Electronics North America |
| 文件页数： | 31/44页 |
| 文件大小： | 0K |
| 描述： | THERMISTOR 6.8K OHM NTC 0402 SMD |
| 产品培训模块： | NTC Thermistors and Simulator |
| 产品目录绘图： | NCP Series Side |
| 标准包装： | 1 |
| 系列： | NCP15 |
| 在 25°C 时的电阻（欧姆）： | 6.8k |
| 电阻公差： | ±5% |
| B 值公差： | ±3% |
| B25/50： | 3950K |
| B25/85： | 3987K |
| B25/100： | 3998K |
| 工作温度： | -40°C ~ 125°C |
| 功率 - 最大： | 100mW |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 0402（1005 公制） |
| 包装： | 剪切带 (CT) |
| 产品目录页面： | 2830 (CN2011-ZH PDF) |
| 其它名称： | 490-2426-1 |
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! Note ? Please read rating and ! CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
? This catalog has only typical speci?cations. Therefore, please approve our product speci?cations or transact the approval sheet for product speci?cations before ordering.
R44E.pdf
Dec.17,2012
Temperature Sensor Lead Type Speci?cations and Test Methods
No.
1
2
3
4
5
Item
Low Temperature
Storage Test
High Temperature
Storage Test
High Temperature
Load
Humidity Storage
Test
Temperature
Cycle
Specifications
· Resistance (R25°C) fluctuation rate: less than ±1%.
· B-Constant (B25/50°C) fluctuation rate: less than ±1%.
· Resistance (R25°C) fluctuation rate: less than ±2%.
· B-Constant (B25/50°C) fluctuation rate: less than ±1%.
Test Methods
-40 +0/-3°C in air, for 1000 +48/-0 hours without loading.
125±2°C in air, for 1000 +48/-0 hours without loading.
85±2°C in air, with ‘Operating Current for Sensor’ for
1000 +48/-0 hrs.
60±2°C, 90 to 95%RH in air, for 1000 +48/-0 hours without
loading.
-40°C +0/-3°C, 30 minutes in air
+25°C±2°C, 10 to 15 minutes in air
+125°C +3/-0°C, 30 minutes in air
+25°C +2/-0°C, 10 to 15 minutes in air (1 cycle)
Continuous 100 cycles, without loading.
6
Insulation Break -
down Voltage
· No damage electrical characteristics on D.C.100 V, 1 min.
2mm length of coating resin from the top of thermistor is to be
dipped into beads of lead (Pb), and DC100V 1 minute is
applied to circuit between beads of lead (Pb) and lead wire.
Both lead wires are dipped into 350±10°C solder for 3.5±0.5
seconds, or 260±5°C solder for 10±1 seconds according to
Fig-1. (solder <Sn-3Ag-0.5Cu>)
7
Resistance to
Soldering Heat
· Resistance (R25°C) fluctuation rate: less than ±1%.
· B-Constant (B25/50°C) fluctuation rate: less than ±1%.
Solder
Fig-1
Both lead wires are dipped into flux (25wt% colophony
8
Solder Ability
· More than 90% of lead wire surface shall be covered by
solder.
<JIS K 5902> isopropyl alcohol <JIS K 8839>) for 5 to 10
seconds. Then both lead wires are dipped into 245±5°C solder
<Sn-3Ag-0.5Cu> for 2±0.5 seconds according to Fig-1.
One end of a lead wire shall be fixed and 2.5N forth for 10
seconds shall be applied to the other lead wire as shown in
Fig-2.
6
9
Lead Wire Pull
Strength
· Resistance(R25°C) fluctuation rate: less than ±1%.
· B-Constant(B25/50°C) fluctuation rate: less than ±1%.
· No visible damage at resin part.
2.5N (10sec.)
Fig-2
One lead wire is held and 2.5N force is applied. Then the body
of NTC thermistor is bent by 90°C and again bent back to the
initial position. This sequence shall be completed twice. See
Fig-3.
10
Lead Wire
Bending Strength
· Lead wire does not break.
90°
2.5N
Fig-3
11 Free Fall
· Resistance (R25°C) fluctuation rate: less than ±1%.
NTC thermistor shall be dropped without any force onto
concrete floor from 1 meter height one time.
· B-Constant (B25/50°C) fluctuation rate: less than ±1%.
NTC thermistor shall be fixed to the vibration test Equipment.
12 Vibration
· No visible damage at resin part.
Vibration of total 1.5mm amplitude, Frequency sequence of
10Hz – 55Hz – 10Hz in 1 minute, shall be applied for right
angled 3 directions for each 2 hours duration.
* · R25 is zero-power resistance at 25°C.
· B25/50 is calculated by zero-power resistance of Thermistor in 25°C-50°C.
· After each test, NTC Thermistor should be kept for 1 hour at room temperature (normal humidity and normal atmospheric pressure).
29
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