產品介紹
一、特性和用途 Features and applications
1.1特性 Features
①高精度.高穩定性
High precision high stability
②響應快速
Quick temperature response
③優良的抗熱沖擊性
Resistant to heat shock
④耐濕性能優良
Moisture resistant
⑤高科技批量化生產保證了產品的高品質和高穩定性
Excellent quality and high stability by high technical mass production
1.2用途 Applications
家電類或工業等溫度檢測
Temperature test in kinds of air-condition,refrigerator,hot boiler,microwave oven.
二、 型號規格表示方法 How To Order
型號命名 Part numbering
KAXD- CWF ×-××× × ×××× × × / ×
① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨
① 表示:肇慶凱訊德電子有限公司
② 表示:NTC熱敏電阻溫度傳感器標示符號 NTC temperature sensors code
③ 表示:封裝形式 Termination shape code
記號Code
1
2
3
外型
Termination shape
環氧樹脂包封型
Epoxy Resin
殼式灌封型
Copper shell
耐高溫套管
High temperature tube
④ 表示:標稱電阻值,單位為歐姆Rated zero-power resistance(R25)unit:Ω
前兩位數字表示電阻值的有效數字,第三位數字表示其后零的個數。
The first two are significant figure of resistance and the third one expresses number of following zeros.
⑤ 表示:電阻值公差符號(%) Tolerance of R25(%)
記號Code
E
F
G
H
J
X
電阻值公差
Tolerance of R25
±0.5
±1.0
±2.0
±3.0
±5.0
特殊公差
Specific tolerance
⑥ 表示:B值常數記號 一般為25/50度時的數值,其他條件下以備注說明。 B value
⑦ 表示:B值公差符號(%)Tolerance of B value(%)
記號Code
E
F
G
H
J
X
B值公差
Tolerance of B
±0.5
±1.0
±2.0
±3.0
±5.0
特殊公差
Specific tolerance
⑧ 表示:計算B值溫度代碼 B value Temperature Code
記號Code
A
B
C
D
E
F
G
H
M
N
兩溫度點
25/50
25/ 85
0/25
0/50
0/100
0/80
25/100
-18/25
-20/25
5/25
⑨ 表示:器件的長度標示記號 單位為毫米 Length of the sensor unit: mm
三、 外觀尺寸 Shape and dimensions
按客戶要求訂制
四、技術參數 Technical Data
4.1、標稱電阻值Resistance(R25)
要 求:R25在標準范圍內;
測量方法: 在25℃±0.05℃的高精度恒溫油槽中測量。
Requirement:R25 within the scope of the standard
Test method: 25℃±0.05℃ constant temperature tank test
4.2、B 值B-value
要 求: B值在標準范圍內;
測量方法:在高精度恒溫油槽中,按B值代碼分別測量兩溫度點電阻值,然后以下公式計算。
Requirement: B value within the scope of the standard
Test method:In high accuracy constant temperature tank, code according to the B value measured at both temperature resistance, then the following formula.
Bt1/t2=ln (Rt1/Rt2)/(1/(t1+273.15)-1/(t2+273.15))
4.3、絕緣電阻Insulation resistance
要 求:≥ 100MΩ
試驗條件:在室溫條件下,施壓500v直流電壓。
Requirement:≥ 100MΩ
Test condition:At room temperature, applied voltage 500V DC
4.4、耐電壓withstand voltage
要 求:無擊穿。
試驗條件:在室溫條件下,施加1500v交流電壓5秒,允許電流0.5mA。
Requirement:No breakdown
Test condition:At room temperature, applied voltage AC 1500V 5s for a second, max current 0. 5mA.
4.5、熱耗散系數Thermal dissipation factor(δ)
要 求:δ≤2.5mW/℃;
試驗方法:被測產品在25±0.5℃靜止空氣中接入以下電路。
Requirement:δ≤2.5mW/℃;
Test method:The product will be join with the following circuit at 25±0.5℃ in still air.
4.6、熱時間常數Thermal time Constant(τ)
要 求: CWF1τ≤7s(包封型),CWF2型τ≤10s(灌封型),CWF3τ≤9S(壓接/套管型)
測量方法:以水為介質,產品從50℃水中放入到25℃水中電阻值變化63.2%所需的時間。
Requirement:CWF1τ≤7s,CWF2型τ≤10s,CWF3τ≤9S
Test method:In the water, When the products be put into the water at 25℃ from the water at 50℃, Thermal time constant is the time that cost by the resistance becoming to be the value at63.2%.
4.7、額定功率Max.rated power
要 求:P≈137mw
計算方法:P≈δ×(80℃-25℃)
Requirement:P≈137mw
Calculating method:P≈δ×(80℃-25℃)
其中80℃為允許產品自身加熱引起溫升達到的較大值。
80℃ is the maximum temperature that the product is heat by itself.
4.8 允許電流Max. Permissible Current
要 求:Imax≤0.3mA
試驗條件:在25℃靜止空氣中,溫度超過傳感器正常工作溫度范圍,能容許的電流。
Requirement:Imax≤0.3mA
Test condition: The current which can be applied to the sensor for rised upper limit of operating temp. range at 25℃ in still air.
4.9、使用溫度范圍:-20~+150℃;
Operation temperature range:-20~+150℃
五、可靠性試驗 Reliability tests
5.1、通電試驗 Charge test
要 求:|△R/R|≤±3%,|△B/B|≤±1%
試驗方法:在常溫常濕通電DC1mA,1000hrs,測試其電阻值 R25、B 值
Requirement:|△R/R|≤±3%,|△B/B|≤±1%
Test method:Placed for 1000hours Applting DC 1 mA and test RT.
5.2、低溫試驗(參照 IEC60068-2-1/GB2423.1 試驗)
Low temperature test(reference to IEC60068-2-2/GB2423.1)
要 求:|△R/R|≤±3%,|△B/B|≤±1%
試驗方法:將傳感器存放于-30℃±5℃干燥環境中1000hrs,在常溫常濕(23℃±10℃、相對濕度25%~85%)下恢復1~2小時后,測試其電阻值 R25、B 值
Requirement:|△R/R|≤±3%,|△B/B|≤±1%
Test method:Store in dry still air at -30℃±5℃ for 1000hrs, Recovery after the test is completed,at normal temperature and humidity(23℃±10℃,relative humidity of25%to85%)for 1~2Hr after retest rated zero-power resistance value at 25℃
5.3、高溫試驗 (參照 IEC60068-2-2/GB2423.2 試驗)
High temperature test (reference to IEC60068-2-2/GB2423.2)
要 求:|△R/R|≤±3%,|△B/B|≤±1%
試驗方法:將傳感器存放于 200℃±5℃干燥環境中1000hrs,在常溫常濕(23℃±10℃、相對濕度25%~85%)下恢復1~2小時后,測試其電阻值 R25、B值
Requirement:|△R/ R|≤±3%,|△B/B|≤±1%
Test method:Store in hot still air at 250℃±5℃ for 1000hrs Recovery after the test is completed,at normal temperature and humidity(23℃±10℃,relative humidity of25%to85%)for 1~2Hr after retest rated zero-power resistance value at 25℃
5.4、高溫高濕(參照 IEC60068-2-3/GB2423.3 試驗)
High humidity and High temperature storage (reference to IEC60068-2-3/GB2423.3)
要 求:|△R/R|≤±3%,|△B/B|≤±1%
試驗方法:將傳感器存放于 95%RH,60℃環境中1000hrs,在常溫常濕(23℃±10℃、相對濕度25%~85%)下恢復1~2小時后,測試其電阻值 R25、B 值
Requirement: |△R/R|≤±3%,|△B/B|≤±1%
Test method: Store in 95%RH,60℃ air conditions for 1000hrs Recovery after the test is completed,at normal temperature and humidity(23℃±10℃,relative humidity of25%to85%)for 1~2Hr after retest rated zero-power resistance value at 25℃
5.5、冷熱沖擊試驗(參照 IEC60068-2-14/GB2423.22 試驗)
High and low temperature impact test (reference to IEC60068-2-14/GB2423.22)
要 求:|△R/R|≤±3%,|△B/B|≤±1%
試驗方法:將傳感器存放于-30℃干燥環境 (3分鐘±0.5分鐘) →室溫環境 (≤30s) →100℃空氣(3分鐘±0.5分鐘)如此循環 100 次,在常溫常濕(23℃±10℃、相對濕度25%~85%)下恢復1~2小時后,測試其電阻值 R25、B值
Requirement: |△R/R|≤±3%,|△B/B|≤±1%
Test method:After 100 cycles of -30℃ dry air (3min±0.5min) →room ambient temperature (≤30s ) →dry air (3min±0.5min)and Recovery after the test is completed,at normal temperature and humidity(23℃±10℃,relative humidity of25%to85%)for 1~2Hr after retest rated zero-power resistance value at 25℃
六、機械強度試驗 Mechanical characteristics
6.1、抗拉強度 Tensile strength
要 求:電性能無影響,外觀無破壞
試驗方法:導線與元件間施加 2KG 靜拉力,10s.。導線與端子間施加 1.33KG靜拉力,10s.
Requirement:test sample should be no break and damage after one minutes
Test method:Pull 2KG static weight in the direction of line 10s , .and Pull 1.33KG static weight between line and terminal 10s
6.2、自由墜落 Free fall
要 求:電性能無影響,外觀無破壞
試驗方法:將傳感器于 1m 高處自由墜落至平板上三次
Requirement:test sample should be no break and damage after one minutes
Test method:After three times natural fall to a maple board from 1m high,
6.3、振動 Vibration test
要 求:電性能無影響,外觀無破壞
試驗方法:頻率范圍:10~55HZ,全振幅:1.52mm,1次循環:1分鐘,方向和時間:X、Y、Z軸各2小時。
Requirement:test sample should be no break and damage after one minutes
Test method:Frequency:10~55HZ,Amplitude Modulation:1.52mm, one time: 1 min. Direction and time:X、Y and Z direction for 2hrs.
6.4、碰撞 Bump
要 求:電性能無影響,外觀無破壞
試驗方法:加速度:250m/s2,脈沖持續時間:6ms,碰撞次數:4000次。
Requirement:test sample should be no break and damage after one minutes
Test method: adder :250m/s2,pulse duration:6ms,times:4000次。
6.5、彎曲試驗Bending test
要 求:電性能無影響,外觀無破壞
試驗方法:來回10次180°彎曲導線與環氧樹脂結合部位。
Requirement:test sample should be no break and damage after one minutes
Test method:180°for 10 times bending the part between wire and epoxy.
七、貯存方法 Method of the stockpile
7.1、貯存和運輸過程中每堆疊放高度不超過4箱產品。
The height of stacks products cannot overbalance four boxes,in the stackpile and the course of transport.
7.2包裝好的產品內應放干劋劑。允許用任何方法運輸,但要避免雨、雪的直接或間接的淋襲和機械損傷。
The packing products of inside must placed desiccant.Allowance used the angone way to transport,but must prevent therain and the snow direct or indirect shower bath and damnification of these products.
7.3產品應貯存環境在溫度為-10℃/+40℃,相對濕度不大于80%,周圍環境不應有酸性、堿性物質及腐蝕氣體或輻射源。
The products are stockpiles candition of the tencperature is about -10℃/+40℃,the opposite humidity not bigger too 80%,acidic and alkalescent of substance,erode gas or radiant point are not should enclose the products.
八、電阻-溫度對應表(R-T table)
電阻-溫度對應表(據客戶阻值標準要求另定)
About RT table please see the following pages