美隆電子有限公司

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Ultra Metal Film Resistor

Resistor 超小型金屬膜電阻

PDF File  Data Spec Ultra Miniature Metal Film Resistor - UMR Series

Resistor INTRODUCTION
The UMR Series flame-proof type miniature Metal Film Resistors are manufactured by vacuum depose it metal film on
high thermal conductivity and specific gravity Rosenthal ceramic or same grade Japans rods. The both ends of
ceramic are coated with precision mixed metals which help to prevent against noise, and to provide low TCR
and low Tol precision resistors the can meet MIL and JIS requirement.
Utilizing a 95~98% of AI ceramic cores and combined a special cutting technology inside, this resulting superior
resistors give excellent heat dissipation, stable performance and significantly up-grade the power rating.
This specially designed resistors are widely used by the industries of communication devices, meters,
high-class, audio equipments and precision military defending facilities as well.
Resistor EXTERNAL DIMENSIONS SINLOON®
STYLE DIMENSION (mm)
L ΦD H Φd
UMR-01 3.3±0.4 1.8±0.3 28±2 0.5±0.05
UMR-02 6.3±0.5 2.3±0.3 28±2 0.6±0.05
UMR-03 6.3±0.5 2.3±0.3 28±2 0.6±0.05
UMR-10 6.3±0.5 2.3±0.3 28±2 0.6±0.05
UMR-20 9.0±0.5 3.2±0.5 26±2 0.6±0.05
UMR-30 15.5±1.0 5.0±0.5 32±2 0.6±0.05
The type designation shall be in the following form and as specified.
Resistor RATED POWER
Type Power Maximum Voltage Dielectric withstanding Resistance
Working Overload Voltage (AC) Range
UMR-01 0.4W 200V 400V 300V 1R~10MΩ
UMR-02 0.5W 250V 500V 500V 1R~10MΩ
UMR-03 0.6W 250V 500V 500V 1R~10MΩ
UMR-10 1W 250V 500V 500V 1R~10MΩ
UMR-20 1.8W 350V 700V 700V 1R~10MΩ
UMR-30 3W 500V 1KV 1KV 1R~10MΩ
Temp. Coefficient (by Type) ±50ppm, ±100ppm
Resistor FEATURES
Resistance Tolerance: ±1%, ±2%, ±5%.
Excellent long-term stability.
High power-to-size ratio for significant space saving.
Variety of packing: bulk, strip pack, 26mm and 52mm tape and reel, cut and foramen.

 

 
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Newsflash

直插式排阻應用

  產品應用    

排阻應用:

列電 大致可以分為: 表面貼裝片式網路電阻及傳統直立式排列電阻兩種。表面貼裝片式網路電阻,通稱貼片排阻,使用 0402/0603/1206成型貼片電阻,在陶瓷基板上排列裱貼成型,可以做成022R (0402 2R/4Pin) 032R (0603 2R4P)064R (1206 4R8P) 更多詳細規格參數資料可以參考美隆公司產品規格書CRA 系列。

 

       另一種: 直立式排阻 在陶瓷基板上印刷電阻而制成,帶有引腳。

NR-系列排阻是以2個電阻以上並列或申聯而成,其電路可應電路的設計連接而分類型, 有一個獨立點(A-TYPE)或串聯(B-TYPE),由兩個以上電阻合而成。

 

           A type 是裡面的所有電阻有一個 共用接點,所以適合用來 Pull high or Pull low,例如 7R8P 就表示排阻有 8 pin,有 7 個電阻加一個共用接點。

           B type 則是獨立的電阻,只是包裝放在一起而己,例如 4R8P 就表示有 4 個獨立電阻,一般是用在 Bus 上串聯的 Damp ping 電阻。

 

網路電阻就是通稱的排阻,一般都是用在MCU 回路的LSI 電路架構。主要是節省空間。