Matters needing attention in application of tantalum capacitor

Matters needing attention in application of tantalum capacitor

为了使钽电解电容器以最稳定的质量充分发挥其性能，必须用适当的方法使用，使用前请先确

In order to make the tantalum electrolytic capacitor in the most stable quality and give full play to its performance, it is necessary to use the appropriate method, please ensure that before use.

认电容器的使用条件和规定的性能，必须遵守规格书上所规定的条件，如使用条件不符合规定范

The performance of recognition of capacitor using conditions and regulations, must comply with the required specifications on the conditions, such as the use of the conditions do not comply with the provisions.

围或在未规定的条件下使用,请明确其条件与本公司商谈。

Please specify the terms and conditions of the company to negotiate with the company.

1．设计电路

1 design circuit

1.1．使用电压

1.1. use voltage

电容器的故障受到使用电压和额定电压的比率影响很大。设计实际电路时，请考虑到所要求的可

The fault of the capacitor is affected by the ratio of the voltage to the rated voltage. When designing the actual circuit, please take into account the requirements

靠性适当降低电压。

Depending on the proper reduction of voltage.

● 使用低阻抗电路时，请将使用电压设定在额定电压的 1／3 以下，使用其它电路时，请将使用电压设立在额定电压 2／3 以下。

The use of a low impedance circuit, please use the setting voltage at rated voltage of 1 / 3, the use of other circuits, please use the voltage set at rated voltage 2 / 3.

● 在低阻抗电路中并联使用时，将增加直流浪涌电流失效的危险，同时请注意并联电容器中贮

The parallel use in low impedance circuit, will increase the risk of DC surge current failure at the same time, please note that the shunt capacitor in storage

存的电荷，通过其它电容器放电 。

Charge stored in the other capacitor.

● 钽电容器在电路中，应控制瞬间大电流对电容器的冲击，建议串联电阻以缓解这种冲击。请

The tantalum capacitors in the circuit, we should control the instantaneous large current of capacitor series resistance to impact, suggestions to alleviate the impact. please

将3Ω／V以上的保护电阻器串联在电容器上,以限制电流在300mA以下，无法插入保护电阻器时，

A protective resistor of 3 / V is connected in series to the capacitor to limit the current to the 300mA, which can not be inserted to protect the resistor,

请使用额定电压的 1／3 以下的电压。

Please use the voltage below 3 / 1 of the rated voltage.

1.2 反向电压

1.2 reverse voltage

钽电容器为极性电容器，所以请勿施加反向电压，并且不可使用只有交流的电路。

Tantalum capacitor is a polar capacitor, so please do not apply reverse voltage, and can not use only the AC circuit.

● 若不得已的情况下，允许在短时间内施加小量的反向电压，其值为：

- if necessary, allow the reverse voltage applied amount in a short period of time, its value is:

25℃下：≤10％ UR 或 1V（取小者）

25 C: less than 10%UR or 1V (for small)

85℃下：≤5％UR 或 0.5V（取小者）

85 C: less than 5%UR or 0.5V (for small)

● 如果将电容器长期使用在有反向电路中时，请选用无极性钽电容器。

If the capacitor will be used for a long time in a reverse circuit, please use the non polar tantalum capacitors.

● 银外壳非固体电解质钽电容器不能承受反向电压。

The silver shell of non solid electrolyte tantalum capacitors cannot withstand reverse voltage.

● 原则上禁止使用万用表电阻档对有钽电容器的电路或电容器本身进行不分极性的测试。

Prohibit the use of multimeter resistance profile of a circuit or capacitor tantalum capacitor itself without polarity test - principle.

● 在测量使用过程中，如不慎使钽电容器承受了不应有的反向电压，请将该电容器报废， 即使

In the measurement process, such as made of tantalum capacitors under a reverse voltage should not have, please the capacitor scrapped, even if

其各项电参数仍然合格。

The electrical parameters are still qualified.

1.3 纹波电压

1.3 ripple voltage

请在电容器规定的容许纹波电压内使用。

Please use the allowable ripple voltage in the capacitor.

● 使用时，直流偏压与交流分压峰值之和不得超过电容器的额定电压值。

- use, DC bias and AC voltage peak and shall not exceed the rated voltage of capacitor value.

● 交流负峰值与直流偏压之和不超过电容器所允许的反向电压值。

The AC and DC bias and negative peak value of the capacitor does not exceed the allowable value of reverse voltage.

● 纹波电流通过钽电容器产生有功功率损耗，进而电容器自身温升导致的热击穿失效概率 增

The ripple current generated by the active power loss of tantalum capacitors, capacitors and its temperature rise caused by thermal breakdown failure probability

大，因此有必要对通过电容器的纹波电流或电容量允许的功率损耗进行限制。

Large, therefore it is necessary to limit the power loss through the capacitor ripple current or capacitance.

1.4 使用环境温度

1.4 using ambient temperature

请在电容器的规定使用温度范围内使用。

Please use the temperature range in the provisions of the capacitor.

● 使用温度超过＋85℃,请以降额电压作为使用电压，如下图。

The use of temperature more than 85 DEG C, please refer to the voltage derating used as voltage, as shown below.

●温度特性是钽电容器的主要电气特性之一，所以当使用温度变化显著时，请在其使用温度的上、

The temperature characteristic is one of the main electrical properties of tantalum capacitors, so when using the temperature changes significantly, please in the use of temperature on,

下限确认电路特性，下图为代表例，不同品种请申请技术资料。

The lower limit to confirm the circuit characteristics, the following figure for example, different varieties please apply for technical information.

1 1.5 频率特性

11.5 frequency characteristic

频率在 10KHz 区域，电容器的电气特性变化显著，所以在使用高频电路上时，请确认电路特性，

Frequency in the 10KHz area, the electrical characteristics of the capacitor changes significantly, so when using the high frequency circuit, please confirm the circuit characteristics,

下图所示为代表例，不同品种请申请技术资料。

As shown in the following example, different varieties, please apply for technical information.

1.6 可靠性

1.6 reliability

钽电容器的失效率根据其使用条件（环境温度、施加电压、电路电阻、使用电路等）的不同而不

The failure rate of the tantalum capacitor varies according to the conditions of its application (such as ambient temperature, applied voltage, circuit resistance, use circuit, etc.)

同，所以请在充分研讨使用条件后，选择适当产品。

In the same, so please choose the appropriate products after the full discussion of the conditions of use.

● 一般设计电容器时，以在＋85℃下连续施加额定电压 1000 小时的失效率为基准，在实际电路

The general design of the capacitor, in 85 C continuous rated voltage is applied to 1000 hours of failure rate as a benchmark, in the actual circuit

中往往存在防止电压或电流的峰值冲击及纹波电流或其它意外电冲击的问题，所以实际使用中的

It is often used in the actual use of the problem of preventing the peak shock of the voltage or current and the ripple current or other unexpected electric shock.

降额设计是必要的，建议一般降额至 65％VR 以下。

Drop design is necessary, it is recommended to reduce the amount to 65%VR.

● 使用于重视安全性设备时，为防止在使用中发生短路，开路等现象。因此，设计时请充分注

The use of safety equipment to pay attention to, in order to prevent the short circuit in use, open circuit phenomenon. Therefore, the design of the full note

意下列几点，确保安全性。

To ensure the safety of the following.

a.设计保护电路，保护装置，系统使用，确保安全。

A. design protection circuit, protection device, system use, to ensure safety.

b.设计冗余电路等，使之成为一个即使发生单一故障时，也不导致整个设备故障的系统。

B. design of redundant circuits, so that it becomes a single failure even when a single failure, it does not cause the entire device failure system.

2．0 安装

2 installation

将电容器安装在印刷电路板上时，如受到过大的机械冲击或热冲击等负荷，将引起电气特性劣化、

When the capacitor is installed on the printed circuit board, the load of mechanical shock or thermal shock will lead to the deterioration of electrical characteristics,

短路等，故请在确认实际安装条件后再使用。

Short-circuit and so on, so please confirm the actual installation conditions and then use.

2.1 使用.测量

2.1 use - Measurement

● 请注意使用时不要施加过大的外力，使电容器的本体或引线端子的电镀剥落受伤。

- please note that don't apply too much force when in use, the electroplating peeling body or lead terminal of the capacitor is injured.

● 落下或曾安装过一次的电容器请匆再次使用。

The fall or has installed a capacitor once again please do not use.

● 安装后，请匆加工电容器或弯折端子等。

- after installation, please do not Processing capacitors or bending terminal etc..

● 电容器的引线（包括片式钽容器引电出端），在测量.使用过程中请注意避免与赤手直接接触，

Lead - capacitor (including chip tantalum container electric outlet), in use process measurement. Please pay attention to avoid direct contact with bare hands,

以免汗渍，油渍等污染引起可焊性不良。

In order to avoid perspiration, oil pollution caused by bad weldability.

2.2 电路板清洗

2.2 circuit board cleaning

清洗时请在除去焊接时使用的焊剂的同时，迅速除去酸，碱等，不可使其残留，清洗时温度应在

When cleaning, remove the welding flux in the same time, the rapid removal of acid, alkali, etc., can not make the residue, cleaning temperature should be in the

50℃以下，超声波，蒸气浸渍等合计时间应在 5 分钟以内，另请注意，根据超声波清洗的条件不

50 degrees below, ultrasonic, steam impregnation and other total time should be less than 5 minutes, and please note that, according to the conditions of ultrasonic cleaning is not

同，会引起端子折断。

The same, will cause the terminal to break off.

2.3 焊接

2.3 welding

2.3.1 用烙铁焊接时

2.3.1 with iron welding

使用烙铁（30W 以下）时,烙铁尖端的温度在 350℃以下，使用时间应在 4 秒以内，并注意烙铁尖

The use of iron (below 30W), the tip of the soldering iron temperature of 350 DEG C, the use of time should be less than 4 seconds, and pay attention to the iron tip

不

No