產品展示
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產品描述
MF72 功率型NTC熱敏電阻器
簡要描述
MF72功率型NTC熱敏電阻器是以過渡金屬氧化物為主要原料制成的半導體陶瓷元件。屬于負溫度系數熱敏電阻器的范疇。為了避免電子電路中在開機的瞬間產生的浪涌電流，在電源電路中串接一個功率型NTC熱敏電阻器，能有效地抑制開機時的浪涌電流，并且在完成抑制浪涌電流作用以后，由于通過其電流的持續作用，功率型NTC熱敏電阻器的電阻值將下降到非常小的程度，它消耗的功率可以忽略不計，電壓幾乎均加到后面設備從而保證線路的正常工作，所以，在電源回路中使用功率型NTC熱敏電阻器，是抑制開機浪涌保護電子設備免遭破壞的最為簡便而有效的措施。
特點
體積小、功率大，抑制浪涌電流能力強
反應速度快
材料常數（B值）大，殘余電阻小
壽命長，可靠性高
系列全，應用范圍寬
應用范圍
轉換電源，開關電源，UPS電源
電子節能燈，鎮流器及各類加熱器
各類顯像管、顯示器
白熾燈，其他照明燈具
外形結構圖
主要參數及尺寸
注：若非特別說明，額定零功率電阻允許偏差為±20%。
型號 | 額定阻值(Ω) | 最大穩態電流(A) | D | L | F | Dimensions(Unit:mm) | |
Dmax | Lmin | F±1 | Tmax | d | |||
| 5D-5 | 5 | 1 | 6.5 | 25 | 5.0/2.5 | 5 | 0.55/0.45 |
| 10D-5 | 10 | 0.7 | 6.5 | 25 | 5.0/2.5 | 5 | 0.55/0.45 |
| 20D-5 | 20 | 0.5 | 6.5 | 25 | 5.0/2.5 | 5 | 0.55/0.45 |
| 5D-7 | 5 | 2 | 8.5 | 25 | 5.0 | 5 | 0.55 |
| 8D-7 | 8 | 1 | 8.5 | 25 | 5.0 | 5 | 0.55 |
| 10D-7 | 10 | 1 | 8.5 | 25 | 5.0 | 5 | 0.55 |
| 12D-7 | 12 | 1 | 8.5 | 25 | 5.0 | 5 | 0.55 |
| 16D-7 | 16 | 0.7 | 8.5 | 25 | 5.0 | 5 | 0.55 |
| 20D-7 | 20 | 0.6 | 8.5 | 25 | 5.0 | 5 | 0.55 |
| 22D-7 | 22 | 0.6 | 8.5 | 25 | 5.0 | 5 | 0.55 |
| 33D-7 | 33 | 0.5 | 8.5 | 25 | 5.0 | 5 | 0.55 |
| 3D-9 | 3 | 4 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 4D-9 | 4 | 4 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 5D-9 | 5 | 3 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 6D-9 | 6 | 2 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 8D-9 | 7 | 2 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 10D-9 | 10 | 2 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 12D-9 | 12 | 1 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 16D-9 | 16 | 1 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 20D-9 | 20 | 1 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 22D-9 | 22 | 1 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 30D-9 | 30 | 1 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 33D-9 | 33 | 1 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 50D-9 | 50 | 1 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 60D-9 | 60 | 0.8 | 10.5 | 25 | 7.5/5.0 | 5.5 | 0.78/0.55 |
| 2.5D-11 | 2.5 | 5 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 3D-11 | 3 | 5 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 4D-11 | 4 | 4 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 5D-11 | 5 | 4 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 6D-11 | 6 | 3 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 8D-11 | 8 | 3 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 10D-11 | 10 | 3 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 12D-11 | 12 | 2 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 16D-11 | 16 | 2 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 20D-11 | 20 | 2 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 22D-11 | 22 | 2 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 30D-11 | 30 | 1.5 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 33D-11 | 33 | 1.5 | 12.5 | 25 | 7.5/5.0 | 5.5 | 0.78 |
| 1.3D-13 | 1.3 | 7 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 1.5D-13 | 1.5 | 6 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 3D-13 | 3 | 6 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 4D-13 | 4 | 5 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 5D-13 | 5 | 5 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 6D-13 | 6 | 4 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 7D-13 | 7 | 4 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 8D-13 | 8 | 4 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 10D-13 | 10 | 4 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 12D-13 | 12 | 3 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 15D-13 | 15 | 3 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 16D-13 | 16 | 3 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 20D-13 | 20 | 3 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 30D-13 | 30 | 2.5 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 47D-13 | 47 | 2 | 14.5 | 25 | 7.5 | 6 | 0.78 |
| 1.3D-15 | 1.3 | 8 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 1.5D-15 | 1.8 | 8 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 3D-15 | 3 | 7 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 5D-15 | 5 | 6 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 6D-15 | 6 | 5 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 7D-15 | 7 | 5 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 8D-15 | 8 | 5 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 10D-15 | 10 | 5 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 12D-15 | 12 | 4 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 15D-15 | 15 | 4 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 16D-15 | 16 | 4 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 20D-15 | 20 | 4 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 30D-15 | 30 | 3 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 33D-15 | 33 | 3 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 47D-15 | 47 | 3 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 50D-15 | 50 | 3 | 16.5 | 25 | 7.5 | 6 | 0.78 |
| 0.7D-20 | 0.7 | 12 | 21.5 | 25 | 10/7.5 | 7 | 1.0 |
| 1.3D-20 | 1.3 | 9 | 21.5 | 25 | 10/7.5 | 7 | 1.0 |
| 2.2D-20 | 2.2 | 8 | 21.5 | 25 | 10/7.5 | 7 | 1.0 |
| 2.5D-20 | 2.5 | 8 | 21.5 | 25 | 10/7.5 | 7 | 1.0 |
| 3D-20 | 3 | 8 | 21.5 | 25 | 10/7.5 | 7 | 1.0 |
| 5D-20 | 5 | 7 | 21.5 | 25 | 10/7.5 | 7 | 1.0 |
| 6D-20 | 6 | 6 | 21.5 | 25 | 10/7.5 | 7 | 1.0 |
| 8D-20 | 8 | 6 | 21.5 | 25 | 10/7.5 | 7 | 1.0 |
| 10D-20 | 10 | 6 | 21.5 | 25 | 10/7.5 | 7 | 1.0 |
| 12D-20 | 12 | 5 | 21.5 | 25 | 10/7.5 | 7 | 1.0 |
| 16D-20 | 16 | 5 | 21.5 | 25 | 10/7.5 | 7 | 1.0 |
| 3D-25 | 3 | 9 | 26.5 | 25 | 10/7.5 | 7 | 1.0 |
| 5D-25 | 5 | 8 | 26.5 | 25 | 10/7.5 | 7 | 1.0 |
| 8D-25 | 8 | 7 | 26.5 | 25 | 10/7.5 | 7 | 1.0 |
| 10D-25 | 10 | 7 | 26.5 | 25 | 10/7.5 | 8 | 1.0 |
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