The leakage current value after soldering may increase a little, from a few μa to several hundred μa, depending on the soldering conditions (preheatin

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1 Technical note As aluminum solid capacitor with conductive polymer is different as the common capacitors which use electrolyte as cathode. Please note the following points in order to take full advantages of the aluminum solid capacitor with conductive polymer and ensure the most stable quality possible. Crucial precautions 1. Polarity The solid aluminum electrolytic capacitor with positive and negative electrodes. Do not reverse the polarity when using. If happened, increased leakage current or a decreased life span may result. 2. Prohibited circuits The leakage current may become greater even if the soldering conditions adhere to the specification requirements. Therefore, do not use the capacitors in the following circuits because trouble or failure may occur. a) High impedance circuits b) Coupling circuits c) Time constant circuits d) Do not use the capacitors in circuits except those above if changes in the leakage current affects circuit operations. 3. Compliance with rated performance The aluminum solid capacitor with conductive polymer must be used under the rated voltage. Over-voltage exceeding the rated voltage should not be applied since it may cause a short circuit. 4. Considerations when soldering The soldering conditions are to be within the range prescribed in specifications. If the specifications are not followed, there is a possibility of the cosmetic defection, the intensive increase of leakage current, and the capacitance reduction. 5. Things to be noted before mounting (d) Applied voltage when circuit design The aluminum solid capacitors with conductive polymer is sealed well, because of sealing the It can be applied with the rated voltage. rubble may protrude, please conform to the dimensional tolerance stipulated in the Sum of the DC voltage value and the ripple voltage peak value must not exceed the rated specifications. voltage. Application Guidelines When DC voltage is low, negative ripple voltage peak value must not become a reverse voltage 1. Considerations when circuit design that exceeds 10% of the rated voltage. (a) Confirm the characteristic before using Using the capacitors within 20% of the rated for applications which may cause the reserve Please confirm the using and mounting conditions before circuit design. Please confirm the voltage during the transient when the power is turned off or the source is switched. using and mounting conditions which are to be within the range prescribed in the specification. (e) Capacitor insulation (b) Operating temperature and ripple current Insulation in the laminate resin is not guaranteed. Be sure to completely separate the case, Please confirm operating temperature is in the specification. Do not apply current that negative lead terminal, positive lead terminal and PC patterns will each other. exceeds the rated ripple current. When excessive ripple current is applied, the solid capacitor (f) Prohibited circuits may result in shorter life due to the internal heat increases. The leakage current nay become greater even if the soldering conditions adhere to the (c) Leakage current specification requirements. Therefore, do not use the capacitors in the following circuits Heat pressure from soldering and mechanical stress from transportation may cause the because trouble or failure may occur. leakage current to become large. a) High impedance circuits In such a case, leakage current will gradually decreased by applying voltage less than or to b) Coupling circuits the rated voltage at a temperature within the upper category temperature. c) Time constant circuits d) Do not use the capacitors in circuits except those above if changes in the leakage current affects circuit operations. (g)things to be noted before mounting 使用注意事项固体铝电解电容器具有不同于一般电解液作为阴极的电解电容器为使导电性高分子铝电解电容器在电路中发挥其优越的性能, 在使用中请特别注意以下内容使用中需要特别注意的事项 1. 极性导电性高分子型固体铝电解电容器的引出端子有正负极之分在电路中使用切勿将正负极接反, 否则将有导致电容器漏电流增加并将严重影响电容器的使用寿命 2. 不推荐使用的电路导电性高分子型固体铝电解电容器在电路使用中由于焊接等原因会导致漏电流增大, 因此不推荐应用于以下电路 a) 高阻抗电路 b) 耦合电路 c) 时间常数电路 d) 受漏电流影响较大的电路 3. 禁止在过电压状态下使用导电性高分子型固体铝电解电容器必须在低于额定工作电压下使用瞬间的超过额定电压的过电压可能会导致电容器的短路 4. 电容器焊接时的注意事项电容器的焊接条件请在本公司所规定的范围内进行强烈的焊接条件, 可能会造成电容器电气性能的劣化甚至外观不良, 严重时更会导致电容器漏电流的急剧增加和容量急剧下降 5. 线路板焊接时的注意事项导电性高分子型固体铝电解电容器的封口皮塞具有较好的密封效果, 由于封口的原因皮塞可能会有一定程度的鼓起, 电路设计时请考虑本公司规定书的 L 尺寸和引线的位置公差范围 (d) 电路设计时的施加电压可以施加 100% 的额定电压请在直流电压与纹波电压的最大值不超过额定电压的范围内使用固体电容器应用指南直流电压偏低时, 纹波电压的负荷最大值不能超过额定电压的 10% 的反向电压 1. 电路设计的注意事项在切断电源等造成的过渡现象中产生的反电压, 应在额定电压的 20% (a) 额定电性能的使用确认以内使用在电路设计前, 请先确认电容器的使用及安装环境, 请在本公司的技术手册 (e) 电容器的绝缘性或者规格书的规定条件范围内正确使用电容器的表面喷塑涂层不保证完全绝缘 (b) 使用温度和纹波电流使用电容器时请将外壳负极引线正极引线与周围组件之间的线路使用温度请设定在规格书规定的范围之内完全分开使用电容器过程中切勿施加超过额定纹波电流的电流如有此现象的发生会 (f) 不推荐使用导致电容器内部急剧发热而严重缩短电容器的使用寿命导电性高分子型固体铝电解电容器在电路使用中由于焊接等原因会导 (c) 漏电流致漏电流增大, 因此禁止应用于以下电路, 防止故障的发生对于高温无负荷高温高湿无负荷及温度急剧变化的等试验也会导致漏电流 a) 高阻抗电路的增大 b) 耦合电路这种情况下, 在最高使用温度范围内施加额定使用电压, 漏电流会有一定程 c) 时间常数电路度的降低 d) 受漏电流影响较大的电路 (g) 关于安装导电性高分子型固体铝电解电容器的封口皮塞具有较好的密封效果, 由于封口的原因皮塞可能会有一定程度的鼓起, 电路设计时请考虑本

2 The leakage current value after soldering may increase a little, from a few μa to several hundred μa, depending on the soldering conditions (preheating and solder temperature and time, PCB material and thickness, ect.). The leakage current can be reduced through self-repair by applying voltage. (d) Handing after soldering Do not subject the capacitors itself to excessive stress after soldering. 焊接后电容器的漏电流因焊接预热条件焊接温度时间线路板的材质及材质不同而发生很大的变化, 几十甚至几百微安, 但是在施加额定电压后处于稳定状态时电容器由于自愈能力而会使其漏电流逐渐减小 (d) 后处理电容器焊接在线路板后, 请不要施加外力禁止将电容器倾斜弯曲扭曲 Do not tilt, bend or twist the capacitors after it has been soldered on the PCB. 3. Precautions with completed board (1) Do not touch the lead terminals of the capacitors directly. (2) Do not use electric conductive to cause short circuit between the capacitors lead terminal. Do not subject the capacitors to conductive solutions such as acid and alkaline water solutions. (3) Check the installation environment of the board the capacitor is installed in. 3. 电容器在设备中安装时的注意事项 (1) 安装过程中切勿直接接触电容器的引线端子 (2) 禁止将电容器的正负极之间用导线短路, 不要将导电性的酸性或碱性溶液洒落在电容器的表面 (3) 安装前确认电容器在设备中的安全环境 (4) 设备的试验温度要在电容器的额定范围内使用 (4) Age the board at conditions that fall bellow the capacitors ratings. 4. Contingency failure The electrolyte, electrolytic paper, sealing rubber, and sleeve used in the capacitors are all combustible. When the current is extraordinarily large after a short circuit, in the worst case, the shorted-out section in the lead terminal or inside the capacitor may ignite the rubber. Pay attention to the capacitor mounting method, mounting position, pattern 4. 意外处理的情况导电性高分子型固体铝电解电容器组成材料包括电解质电解纸皮塞和套管属于可燃性物质, 电容器短命后电流值急剧增加, 导致引线端子和电容器内部短路部分会产生电火花, 情况严重时会引起皮塞和套管燃烧, 所以在电路设计中应对电容器的安装方法和安装位置谨慎对待 design, ect.

3 SMD type(vertical) RECOMMENDED REFLOW SOLDERING CONDITIONS

4 Voltage Range (Vdc) Preheat Time maintained above 217 Time maintained above 230 Peak temperature Reflow Number V 150~ seconds 50 seconds max. 40 seconds max. 250 max. Twice or less 260 max. Only 1 time V 150~ seconds 40 seconds max. 30 seconds max. Twice or less 250 max. 50 seconds max. 40 seconds max. Only 1 time *All temperatures are measured on the topside of the Al-can and terminal surface. *Please ensure that the capacitor became cold enough to the room temperature (5 to 35 ) before the second reflow. Recommended Solder Land on PC Board (Unit:mm) Size ФD (code) a b c Ф6.3 (F) Ф8 (B) Ф10 (C) SMD type (Flat) Land Pattern Design Recommended Pb-Free Reflow Profile

5 Recommended SnPb Reflow Profile MSL:3 General introduction of polymer capacitors Features Long life 20000h life at 85 C can be expected (HCN, HEN, HVC, HVM series), suitable for long-operating industrial equipments. Stable temperature characteristics Its ESR has stable characteristics from -55 C to 105 C (partly 125 C), suitable for applications used at low temperature (under 0 C) Low ESR obtained by using conductive polymer electrolyte Suitable as a smoothing capacitor, enabling miniaturizing switching power supplies, because it allows large ripple current. Suitable as a backup capacitor for the circuits that consume large current at a high speed. Suitable as a decoupling capacitor, because its impedance has ideal frequency characteristics. RoHS Compliant All the models are RoHS compliant products. High safety

6 More difficult to ignite and "smoke" than a tantalum electrolytic capacitor. Estimation of life time Liquid electrolytic capacitor: Life will finish when electrolyte is drying out, L=L0x2 10 (LO: Life at 105 C) Solid electrolytic capacitor: Long life, solid electrolyte, no drying concern.l=l0x (LO: Life at 105 C) Liquid electrolytic capacitor Solid electrolytic capacitor 105 C 2000h 105 C 2000h 95 C 4000h 95 C 6324h 85 C 8000h 85 C 20000h 75 C 16000h 75 C 63245h 65 C 32000h 65 C h *These <105 C values are not guaranteed but presumptive values. Endurance (With rated voltage applied at +105 C)

7 Temperature Characteristics Frequency Characteristics 导电性高分子固体铝电解电容器简介电容器在三个基本无源元件 (L- 电感 C- 电容 R- 电阻 ) 中使用量最大, 是任何电子线路不可缺少的充放电通交隔直的元件电容器的种类因电介质的不同而各有所长, 根据应用目的不同而被广泛用于滤波定时旁路耦合改善马达启动功率等方面铝电解电容器的电解质以往采用电解液, 随着技术的发展, 将导电性高分子材料技术应用到铝电解电容器中, 由于它的电解质的导电性高, 接近金属导电性能 ( 见图 1), 导电性受温度的影响小, 带来铝电解电容器性能的革新因而导电性高分子固体铝电解电容器具有卓越的性能 : 高频下极低的等效串联电阻 (ESR) 和极低阻抗特性 (Z) 稳定的温度持性允许通过更大的纹波电流, 降低纹波电压能力強适合片式化表面贴装工艺优越的电压持性工作寿命长, 可靠性高使用安全性高, 不易燃烧或冒烟, 没有爆浆可能卓越的自愈能力高频下极低的等效串联电阻 (ESR) 和极低阻抗特性 (Z)

8 导电性固体高分子电解电容器, 通过使用高导电性聚合物做电解质, 大幅度地降低了等效串联电阻 (ESR), 达到了聚酯电容器那样的卓越频率特性, 又具有电解液式电容器大的容量稳定的温度持性固体铝电解电容器的等效串联电阻 (ESR) 基本上不受温度的影响,ESR 对于高频段的阻抗 ( 振荡点附近 ) 起着决定性的作用,ESR 直接关系到降噪的能力.ESR 受温度的影响小意味者降噪能力受温度影响小, 可以得到整个保证温度段的稳定的降噪效果, 特别适用于会在低温环境下使用的设备允许通过更大的纹波电流, 降低纹波电压能力强允许通过电容器的纹波电流量依电容器的发热量而定. 发热的主要因素取决于 ESR ESR 大则发热量大, 使纹波电流量受到限制固体铝电解电容器在开关电源滤波电路中的应用 : 选用不同类型的电容器在 200kHz 的工作頻率下, 滤波电路的滤波效果比较

9 适合片式化表面贴装工艺导电性高分子材料的耐热性好, 可以达到无铅化回流焊的温度要求, 在通过回流焊时, 电容器不会鼓凸优越的电压待性固体铝电解电容器在电压使用下, 容量基本上没有变化, 因而使用固体铝电解电容器不需考虑施加电压后的容值下降问题工作寿命长, 可靠性高液体电解电容器, 寿命决定于电解液干涸推算法則 : 温度每下降 10 C, 寿命增倍 L=L0x2 10 (L0 :105 C 的寿命 ) 固体电解电容器, 固体电解质, 无电解液干涸之處, 寿命长推算法則 : 温度每下降 20 C, 寿命增加 10 倍 L=L0x2 20 (L0:105 C 的寿命 ) 寿命对比 :105 C 相同寿命的液体电解和固体电解电容器,65 C 时, 固体电解电容器约为液体电解电容器的 6 倍计算 :105 C 2000h, 在 65 C 时, 液体电解电容器寿命 L 液 =2000x16=32000h, 固体电解电容器寿命 L 固 =2000x100=200000h, =6.25 液体电解电容器固体电解电容器 105 C 2000h 105 C 2000h 95 C 4000h 95 C 6324h 85 C 8000h 85 C 20000h 75 C 16000h 75 C 63245h 65 C 32000h 65 C h * 表中 <105 C 数值为推测值不是保证值耐久性 (105 C 施加额定电压 ):

10 使用安全性高, 不易燃烧或冒烟, 不易爆炸固体铝电解电容器与普通电容器钽固体电容器的比较, 具有更高的安全性液体铝电解电容器电解液易干涸 ; 电解液具有腐蚀性, 易老化, 过负荷的情况下, 电容器内部高温并气压增大, 有爆浆的可能钽电容器在过负荷的情况下, 电容器产生高温二氧化锰被加热到一定的温度时释放出大量的氧, 缺陷上的钽受热吸收氧发生剧烈的氧化还原反应即燃烧高分子固体铝电解电容器中高分子材料本身具有较高的耐热性难燃烧, 即使在过负荷的情况下, 过高的温度使高分子材料绝缘化, 不易燃烧, 不易爆炸卓越的自愈能力高分子固体电容器与二氧化锰电容器相近有自愈功能, 但是与之不同的是它不会形成氧, 故不会燃烧, 具有更高的可靠性自愈机理在缺陷处局部较大的漏电流产生热量, 聚合物受热形成高阻抗物或蒸发固体电容器在自愈过程中不会释放氧气, 故固体电容器很难发生自燃, 只有很高的安全性和可靠性

Microsoft Word - P SDV series.DOC

Microsoft Word - P SDV series.DOC 片式压敏电阻器 SDV 系列 Chip SDV Series Operating Temp. : -55 ~ +125 特征 SMD 结构适合高密度安装优异的限压比, 响应时间短 (