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High Alumina 100MR Cement Resistor 5 Watt For Printed Circuit Boards Quick Detail: 1.Small size,resistant to vibration,humidity and heat,good dissipation,low noise and no annual shift in resistance value,low price
2.UCHI is equipped to design and produce custom components to meet many design and reliability demands. Contact us with your specific needs.
3.Delivery:5-7days
4.Conforms to the ROHS standard and the LEAD-FREE non-lead standard. Description: 1.cement resistors are made by winding resistance wires around non-alkaline ceramic core,which is added with a layer of heat and humidity resistant and non-corrosive protective material.
2.The wire wound resistor is then placed in a square ceramic package sealed with special nonflammable heat-resistant cement.
3.For high resistance value,wires are replaced by metal oxide films. Applications: Complete insulation suitable for printed circuit boards,Power supplies ,Voltage dividers ,Motor controllers ,Automotive applications ,Power electronics circuits. Specifications: | 1. General 1.1 Scope This specification is available for Cement Resistor manufactured by,it accords with RoHS test of Environment related substance requirement. 1.2 Type designation (example) The type designation shall be in the following form and as specified.  1.3 Rated power Rated power is maximum power which can be continuously loaded at specified ambient temperature 70℃,as Table-1;however when the ambient temperature exceeds 70℃,rated power should be determined from the derating curve of Fig.1. | | Table-1 | Rated power | Maximum working voltage | Maximum overload voltage | Dielectric withstanding voltage | Max Intermittence Overload Voltage | | 1W | 350V | 700V | 1000V | 1500V | | 2W | 350V | 700V | 1000V | 1500V | | 3W | 500V | 1000V | 1000V | 1500V | | 5W | 750V | 1500V | 1000V | 1500V | | 7W | 1000V | 1500V | 1000V | 1500V | | 10W | 1000V | 1500V | 1000V | 1500V | | 15W | 1000V | 15000V | 1000V | 1500V | | 20W | 1000V | 1500V | 1000V | 1500V | | 30W | 1000V | 1500V | 1000V | 1500V | | 40W | 1000V | 1500V | 1000V | 1500V | Figure 1 Power derating curve  Rated ambient temperature: 1W~10W 70℃ 15W or more 25℃  Rated ambient temperature: 1W~10W 70℃ 15W or more 25℃  1.4 Rated voltage The rated voltage shall be the D.C. or A.C.(R.M.S. at power frequency) voltage which corresponds the rated power and the value of which is calculated from the formula below. | E=√(P×R) Where E: Rated voltage(V) P: Rated power(W) R: Nominal resistance(Ω) Operating Temperature Range:-55℃～+250℃ 2. Construction 2.1 External dimensions The dimensions shall be satisfied with [5. External dimensions]. 2.2 Structure diagram The construction of cement resistor shall be as follows:  | NO | Item | Material | | 1 | Ceramic core | High alumina ceramic is used. | | 2 | Resistor element | The resistor element shall consist of metal oxide film or Resistance wire (Exemple:CN49W Φ1.0mm) . | | 3 | Terminal | Tinned iron cap. | | 4 | Connection | The lead wire,which is plated with solder,shall be mounted to the caps by welding process. | | 5 | Lead wire t | Soldered or tinned annealed wire. | | 6 | Silicon cement | Silicon resin is used. Accord with UL-94V-0 Nonflammable specification | | 7 | Ceramic case | High thermal conductivity | | | 3. Characteristics Table-2 | Item | Performance | Test methods(Conform to JIS C 5202) | | Temperature Coefficient | Metal Oxide Film:±350PPM/℃ Resistor Wire:±260PPM/℃ | Comply with 5.2 R1-R0/R0(T1-T0)×106(PPM/℃) R0:Resistance value at room temp.( T0). R1:Resistance value at room temp.plus 100℃ (T1) | | Short time overload | Within ±(2%+0.05Ω). No evidence of mechanical damage. | Comply with 5.5 Rated power×10 times,5s But not to exceed maximum overload voltage. (See table-1) | | Insulation Resistance | 103MΩ or more. | Comply with 5.6 Resistor shall be tested at DC 500V for 60 seconds. | | Dielectric Withstanding Voltage | No evidence of flashover mechanical damage,arcing or insulation breakdown. | Comply with 5.7 Resistor shall be tested at AC potential respecticely for 60 seconds. (See table-1) | | Pulse overload | Within ±(2%+0.05Ω) | Comply with 5.8 Rated voltage X 4 times, 10000 cyc.(1s ON, 25s OFF) But not to exceed maximum pulse voltage. (See table-1) | | | Item | Performance | Test methods(Conform to JIS C 5202) | | Resistance to soldering heat | Within ±(1%+0.05Ω) No evidence of mechanical damage. | Comply with 6.4 350±10℃, 3±1s After test leave for 0.5h. | | Solderability | Covered with new solder by 95% at least. | Comply with 6.5 Test temperature of solder: 255±5℃ Dipping time in solder:3±1 s | | Temperature cycle | Within ±(2%+0.05Ω) No evidence of mechanical damage. | Comply with 7.4 Low side:-55℃/30min, Room temp.:10 to 15min High side:80℃/30min, Room temp.:10 to 15min 5 cycles | | Load life in humidity | Within ±(5%+0.05Ω) | Comply with 7.9 40±2℃, 90 to 95%RH, 1000h Rated voltage (90 min ON, 30 min OFF) | | Load life | Within ±(5%+0.05Ω) | Comply with 7.10 70±3℃, 1000h Rated voltage (90 min ON, 30 min OFF) | | 4. Indication (1) Rated Power (2) Resistance (3) Tolerance Sample 5. External dimensions 5.1 CR-L type  | Watt | Dimensions(mm) | Resistance Range(Ω) | | L | W | H | Φd±0.05 | Wire Wound | Metal Oxide Film | | 1W | 14±1.0 | 6.5±1.0 | 6.5±1.0 | 0.50 | 0.1Ω~22Ω | 25Ω~56KΩ | | 2W | 18±1.0 | 7.0±1.0 | 7.0±1.0 | 0.50 | 0.1Ω~22Ω | 25Ω~56KΩ | | 3W | 22±1.0 | 8.0±1.0 | 8.0±1.0 | 0.68 | 0.1Ω~47Ω | 50Ω~100KΩ | | 5W | 22±1.0 | 9.5±1.0 | 9.5±1.0 | 0.68 | 0.1Ω~47Ω | 50Ω~100KΩ | | 7W | 35±1.5 | 9.5±1.5 | 9.5±1.5 | 0.68 | 0.5Ω~330Ω | 450Ω~100KΩ | | 10W | 48±1.5 | 9.5±1.5 | 9.5±1.5 | 0.68 | 0.5Ω~450Ω | 470Ω~100KΩ | | 15W | 48±1.5 | 13±1.5 | 13±1.5 | 0.68 | 1Ω~500Ω | 510Ω~100KΩ | | 20W | 63±1.5 | 13±1.5 | 13±1.5 | 0.68 | 1Ω~600Ω | 620Ω~100KΩ | | 30W | 75±2.0 | 19±2.0 | 17±2.0 | 0.68 | 1Ω~600Ω | 620Ω~100KΩ | | 40W | 89±2.0 | 19±2.0 | 19±2.0 | 0.68 | 1Ω~600Ω | 620Ω~100KΩ | 5.2 CR-M type  | Watt | W±1.0 | S±1.0 | H±1.5 | Φd±0.05 | P±1.0 | Resistance Range(Ω) | | Wire Wound | Metal Oxide Film | | 2W | 11.5 | 7.5 | 20.5 | 0.70 | 4.5 | 0.1Ω~47Ω | 50Ω~100KΩ | | 3W | 12 | 8.5 | 25 | 0.70 | 4.5 | 0.1Ω~47Ω | 50Ω~100KΩ | | 5W | 13 | 9.5 | 25 | 0.75 | 4.5 | 0.1Ω~47Ω | 50Ω~100KΩ | | 7W | 13 | 9.5 | 38 | 0.70 | 4.5 | 0.5Ω~330Ω | 450Ω~100KΩ | | 10W | 13 | 9.5 | 52 | 0.70 | 4.5 | 0.5Ω~450Ω | 470Ω~100KΩ | | 10W | 16 | 11.5 | 36 | 0.70 | 4.5 | 0.5Ω~450Ω | 470Ω~100KΩ | | 15W | 13 | 10 | 50 | 0.70 | 4.5 | 0.5Ω~450Ω | 470Ω~100KΩ | | 20WS | 13 | 10 | 50 | 0.70 | 4.5 | 0.5Ω~450Ω | 470Ω~100KΩ | | 20W | 20 | 10 | 40 | 0.70 | 7.0 | 0.5Ω~450Ω | 470Ω~100KΩ | 5.3 CR-YB type  Unit:mm | Watt | Dimensions(mm) | Resistance Range(Ω) | | L | P±1.5 | W1±1.2 | W2±0.2 | W3±0.2 | H1±1.2 | H2±0.2 | H3±1.5 | | 15 | 48±1.5 | 32.5 | 12.5 | 10 | 2.7 | 12.5 | 15 | 36 | 1.0-820 | | 20 | 63±2 | 44 | 12.5 | 10 | 2.7 | 12.5 | 15 | 36 | 1.0-1K | 5.4 CR-YD type  | Watt | Dimensions(mm) | Resistance Range(Ω) | | L | P±1.5 | W±1.0 | W1±0.2 | W2±0.2 | H±0.2 | H1±0.2 | H2±1.5 | | 3 | 24±1.0 | 12 | 9.5 | 7.5 | 1.6 | 9.5 | 25 | 39 | 0.5-150 | | 5 | 27±1.0 | 15 | 9.5 | 7.5 | 1.6 | 9.5 | 25 | 39 | 0.5-220 | | 7 | 35±1.5 | 22.5 | 9.5 | 7.5 | 1.6 | 9.5 | 25 | 39 | 1-470 | | 10 | 48±1.5 | 34 | 9.5 | 7.5 | 1.6 | 9.5 | 25 | 39 | 1-680 | | 15 | 48±1.5 | 32.5 | 12.5 | 10 | 3 | 12.5 | 30 | 47.5 | 1-820 | | 20 | 63±2.0 | 44 | 12.5 | 10 | 3 | 12.5 | 30 | 47.5 | 1-1K | 5.5 CR-YA type  | Watt | Dimensions(mm) | Resistance Range(Ω) | | L | P±1.5 | W1±1.0 | W2±0.2 | W3±0.2 | H1±0.2 | H2±0.2 | H3±0.2 | | 3 | 24±1.0 | 12 | 9.5 | 5.3 | 0.9 | 9.5 | 10 | 25.5 | 0.5-150 | | 5 | 27±1.0 | 15 | 9.5 | 5.3 | 0.9 | 9.5 | 10 | 25.5 | 0.5-220 | | 7 | 35±1.5 | 22.5 | 9.5 | 5.3 | 0.9 | 9.5 | 10 | 25.5 | 1-470 | | 10 | 48±1.5 | 34 | 9.5 | 5.3 | 0.9 | 9.5 | 10 | 25.5 | 1-680 | 5.6 CR-YC type  | Watt | Dimensions(mm) | Resistance Range(Ω) | | L | P±1.5 | W1±1.0 | W2±0.2 | W3±0.2 | H1±1 | H2±0.5 | H3±1.5 | | 3 | 24±1.0 | 12 | 9.5 | 7.3 | 1.6 | 9.5 | 10 | 25 | 0.5-150 | | 5 | 27±1.0 | 15 | 9.5 | 7.3 | 1.6 | 9.5 | 10 | 25 | 0.5-220 | | 7 | 35±1.5 | 22.5 | 9.5 | 7.3 | 1.6 | 9.5 | 10 | 25 | 1-470 | | 10 | 48±1.5 | 34 | 9.5 | 7.3 | 1.6 | 9.5 | 10 | 25 | 1-680 | 5.7 CR-YE type  | Watt | Dimensions(mm) | Resistance Range(Ω) | | L | P±1.5 | W1±1.0 | W2±0.2 | W3±0.2 | H1±0.2 | H2±0.2 | H3±1.5 | H4±1.5 | | 3 | 24±1.0 | 12 | 9.5 | 7.4 | 3 | 9.5 | 7.5 | 4.5 | 30.4 | 0.5-150 | | 5 | 27±1.0 | 15 | 9.5 | 7.4 | 3 | 9.5 | 7.5 | 4.5 | 30.4 | 0.5-220 | | 7 | 35±1.5 | 22.5 | 9.5 | 7.4 | 3 | 9.5 | 7.5 | 4.5 | 30.4 | 1-470 | | 10 | 48±1.5 | 34 | 9.5 | 7.4 | 3 | 9.5 | 7.5 | 4.5 | 30.4 | 1-680 | 5.8 CR-YD1 type  | Watt | Dimensions(mm) | Resistance Range(Ω) | | L | P±1.5 | W±1 | W2 | W3 | W1 | H1 | H2 | H3 | | 15 | 48±1.5 | 22 | 12.5 | 10 | 1.5 | 5 | 12.5 | 30 | 47.5 | 10-820 | | 20 | 63±2.0 | 44 | 12.5 | 10 | 1.5 | 5 | 12.5 | 30 | 47.5 | 1.0-1K | 5.9 CR-V type  | Watt | Dimensions(mm) | Resistance Range(Ω) | | L1 | L2±0.2 | L3±0.2 | H1±0.2 | H2±0.2 | H3±1.0 | W1±1.0 | W2±0.2 | W3±0.5 | | 5 | 31±1.0 | 5 | 4 | 1.5 | 11 | 9.5 | 9.5 | 1.5 | 11.5 | 0.5-220 | | 7 | 49±1.5 | 10 | 4 | 1.5 | 11 | 9.5 | 9.5 | 1.5 | 11.5 | 1-470 | | 10 | 62.5±2 | 10 | 4 | 1.5 | 11 | 9.5 | 9.5 | 1.5 | 11.5 | 1-680 | | 15 | 63.5±2 | 10 | 4.5 | 2.5 | 14.5 | 13 | 13 | 2.5 | 15.5 | 1-820 | | 20 | 75±2 | 10 | 4.5 | 2.5 | 17.5 | 13 | 13 | 2.5 | 15.5 | 1-1K | 5.10 CR-H type  | Watt | Dimensions(mm) | Resistance Range(Ω) | | L1 | L2±1.0 | W3±0.2 | P2 | P3 | t2 | h2 | W1 | W2 | H1 | H2 | | 10 | 48±1.5 | 23 | 12 | 6 | 8 | 0.6 | 4 | 9.5±1.0 | 5 | 9.5±1.0 | 6±1.5 | 1-680 | | 15 | 48±1.5 | 23 | 12 | 7 | 8 | 0.8 | 4 | 12.5±1.2 | 6 | 12.5±1.2 | 7.5±2.0 | 10-820 | | 20 | 63±2.0 | 23 | 12 | 7 | 10 | 0.8 | 4 | 12.5±1.2 | 6 | 12.5±1.2 | 7.5±2.0 | 1-1K | | 30 | 75±2.5 | 56 | 18 | 9 | 10 | 0.8 | 4.2 | 19±1.5 | 7.5 | 19±1.5 | 10±2.0 | 1-1K | | 40 | 88±2.5 | 68 | 18 | 9 | 10 | 0.8 | 4.2 | 19±1.5 | 7.5 | 19±1.5 | 10±2.0 | 1-1K | Competitive Advantage: 1. Factory supply directly 2. Completed certificates such as UL,VDE,SGS,etc and high quality available 3. Quick delivery 4. Best after-sales services 5. OEM & ODM available  |
