When the tantalum capacitor is installed on the PCB board, under the mechanical stress, when the tantalum capacitor installation is not at that time, it is easy to lead the lead to bear large stress or resonance.

The following should be taken into account when selecting and using a tantalum capacitor:

A）電路設(shè)計者為了設(shè)計出能在要求的時間內(nèi)滿意工作的電路，所使用的電容量允許偏差必須考慮。介質(zhì)吸收；電容量與壓力、振動和沖擊的關(guān)系；電容量在電路中的老化和貯存條件。

A) circuit designers in order to design a circuit that can be satisfied with the work within the time required, the capacity of the capacitor to be used must be considered. Dielectric absorption; capacitance and pressure, vibration and shock; capacitance in the circuit aging and storage conditions.

B）需考慮電容器引出端和外殼之間的電容量，如果此電容量會產(chǎn)生雜散電容和漏電流。

B) to take into account the capacitance between the terminal and the capacitor, if this capacitance will produce stray capacitance and leakage current.

C）可以用多種電容器組合獲得要求的電容量，從而補(bǔ)償電容量--溫度特性等。

C) can be used in combination with a variety of capacitors to obtain the required amount of capacitance, and thus the amount of compensation capacity - temperature characteristics, etc..

D）施加于電容器的峰值電壓不能超過相應(yīng)規(guī)范規(guī)定的額定值。通常，相同的峰值電壓可能由于以下條件而降低：老化；溫升；介質(zhì)區(qū)域增大；外加電壓頻率較高；潮氣進(jìn)入電容器。 需要強(qiáng)調(diào)的一點(diǎn)是，不要忽視電容器在應(yīng)用中的短時瞬態(tài)電壓。

D) the peak voltage applied to the capacitor can not exceed the specified value of the corresponding specification. Usually, the same peak voltage may be decreased due to the following conditions: aging; temperature rise; medium voltage region increases; high frequency; moisture into the capacitor. One point to be stressed is that don't ignore the short term transient voltage in the application.

E）當(dāng)電容器在高于地電位的高壓下工作時，并且對絕緣采用附加絕緣時，電容器 的一個引出端要接在外殼上，因?yàn)殡妷悍峙淙Q于電容器芯子和外殼之間的電容量、以及外殼和底盤之間的電容量。

E) when the capacitor is higher than the ground potential under high pressure condition, and to adopt additional insulation insulation, a capacitor terminal connected to the shell, because the capacitance and voltage distribution depends on between the capacitor core and shell and the capacitance between the casing and the chassis.

F）必須根據(jù)電路的時間常數(shù)考慮充電和放電的峰值電流。

F) the peak current of charge and discharge must be considered according to the time constant of the circuit.

G) 必須考慮內(nèi)部發(fā)熱和環(huán)境溫度。

G) must consider internal heat and ambient temperature.

H）必須考慮濕度、壓力、腐蝕性大、霉菌、振動和沖擊等環(huán)境因素影響。

H) must consider the influence of humidity, pressure, corrosion resistance, mold, vibration and shock and other environmental factors.

I）必須考慮絕緣電阻，尤其是在高溫下的絕緣電阻。

I) must consider the insulation resistance, especially in the high temperature insulation resistance.

J）在直流電路中串聯(lián)工作時，必須考慮使用平衡電阻器。

J) when working in series in a DC circuit, a balanced resistor must be considered.

K）大容量電容的有效電感量可以并聯(lián)小電容器來降低。

K) the effective inductance of a large capacitance capacitor can be reduced by a parallel capacitor.

L）因?yàn)殡娙萜骶哂须姼校虼瞬⒙?lián)在電路中每一次工作或瞬時工作時可能產(chǎn)生瞬 時振蕩。

L) because the capacitor has an inductance, it is possible to generate instantaneous oscillation in parallel in each work or instantaneous operation of the circuit.

M）電接觸不良在低壓下可能開路或產(chǎn)生噪聲。

Poor electrical contact in low voltage M may open or produce noise.

N）電容器內(nèi)儲存的能量對人和設(shè)備有危險，對此應(yīng)采取適當(dāng)防范措施。

N) the energy stored in the capacitor is dangerous to people and equipment, and the appropriate precautions should be taken.

O）充滿液體的電容器不能被倒置，因其會導(dǎo)致內(nèi)部電暈。

O) filled with liquid capacitors can not be inverted, because it will lead to internal corona.

P）非氣密封電容器可能因“呼吸”過程中受潮。

P) non - air sealed capacitors may be affected by "breathing".

鉭電容器介質(zhì)氧化膜具有單向?qū)щ娦院驼魈匦裕?dāng)施加反向電壓時，就會有很大的電流通過，甚至造成短路而失效。因此，使用中應(yīng)嚴(yán)格控制反向電壓。 固體電解質(zhì)極性鉭電容一般不允許加反向電壓，并且不可長期在純交流電路中使用。若在不得已的情況下， 允許在短時間內(nèi)施加小量的反向電壓，其值為：25℃以下：≤10%UR 或1V（取小者） 85℃下 ≤ 5%UR 或0.5V （取小者） 125℃下≤1%UR或0.1V（取小者）。如果將電容器長期使用在有反向電壓的電路中時，請選用雙極性鉭電容器，但也只能在極性變換而頻率不太高的直流或脈動電路中使用。

Tantalum capacitor dielectric oxide film has a unidirectional conductivity and rectification characteristics, when the reverse voltage is applied, there will be a lot of current through, and even cause a short circuit failure. Therefore, the reverse voltage should be strictly controlled in the application. Solid electrolyte tantalum capacitors are generally not allowed to add reverse voltage, and can not be used in pure AC circuit for a long time. If in no circumstances, allow the reverse voltage applied amount in a short period of time, its value is below 25 DEG C: less than 10%UR or 1V (for small) 85 degrees less than or equal to 5%UR or 0.5V (for small) 125 degrees less than or equal to 1%UR or 0.1V (for small). If the capacitor is used in a circuit with reverse voltage for a long time, the use of bipolar tantalum capacitors, but also can only be in the polarity of the DC or pulse circuit frequency is not too high.

非固體電解質(zhì)鉭電容在出廠前都進(jìn)行了可焊性檢測，不存在可焊性問題，上機(jī)前不需要進(jìn)行 浸錫預(yù)處理。如果必要時（如貯存兩年以上，或受潮，或受酸氣污染等）可作浸錫處理。 全密封固體鉭電容器無論是焊接，還是浸錫處理，處理距離都應(yīng)控制在技術(shù)規(guī)范規(guī)定的 離封口錫包的3.2mm 處外，溫度不高于260℃，時間不大于5秒。因?yàn)槿芊夤腆w鉭電容器的密封材料是焊錫，如果時間過長，溫度過高，或焊接距離本體太近＜3.2mm ，都有可能造成封口錫包熔化，導(dǎo)致電容器受潮、不密封，影響電性能和可靠性；嚴(yán)重時，電容器受熱后內(nèi)部產(chǎn)生負(fù)壓，把封口處焊錫吸入內(nèi)部，造成腔內(nèi)有多余物并短路。進(jìn)行浸錫處理后的鉭電容器，在額定電壓、85℃下老化4～8小時，然后進(jìn)行電性能測量（雙極性產(chǎn)品應(yīng)每小時換向一次，漏電流量也應(yīng)兩個方向分別測量）。

Non solid electrolyte tantalum capacitors are in the factory before the test, there is no problem of welding, the machine does not need to pre processing. If necessary (if stored for more than two years, or damp, or by acid gas pollution, etc.) can be used for tin treatment. Fully sealed solid tantalum capacitors, whether it is welding, or dip tin treatment, processing distance should be controlled in the technical specifications of the 3.2mm outside the sealing tin package, the temperature is not higher than 260 degrees, the time is not more than 5 seconds. Because the sealing material sealed solid tantalum capacitor is solder, if the time is too long, the temperature is too high or too close, body welding distance is less than 3.2mm, are likely to cause the sealing tin melting, lead capacitor humidity, seal, affect the electrical performance and reliability; serious, electric heated container internal negative pressure, the the seal cavity is caused by inhalation of solder, redundances and short circuit. For tantalum capacitor tin dipping treatment, at rated voltage and 85 DEG C aging 4 ~ 8 hours, and then measure the electrical properties (bipolar product per hour commutation time, leakage current should also be two directions were measured).

鉭電容器一般可貯存14年以上（可焊接除外），但貯存2年以上或進(jìn)行浸錫處理的鉭電容器，在使用前施加額定電壓、電源內(nèi)阻不大于3Ω。

Tantalum capacitors can be stored for 14 years (except for welding), but storage for more than 2 years or dip tin tantalum capacitors, rated voltage is applied, the internal resistance of the power supply before the use of less than 3 ohm.

鉭電容應(yīng)避免超溫使用。超溫下會使材料的性能發(fā)改變，因產(chǎn)品用的各種材料 熱膨脹系數(shù)不同，可能產(chǎn)生內(nèi)部應(yīng)力而使產(chǎn)品失效；產(chǎn)品在高溫下長時間貯存，產(chǎn)品可能產(chǎn)生內(nèi)部應(yīng)力導(dǎo)致失效。因此，鉭電容必須在標(biāo)準(zhǔn)規(guī)定的溫度范圍內(nèi)使用。

Tantalum capacitors should be used to avoid over temperature. High temperature will make the material properties change, due to a variety of thermal products with different coefficients of expansion, may produce internal stress due to product failure; long time storage at high temperature, the product may be produced due to internal stress failure. Therefore, the tantalum capacitor must be used in the temperature range of the standard.

鉭電容器的失效率是對直流額定值而言（85℃、額定電壓），并且因使用條件 （環(huán)境溫度、施加電壓、電路電阻等）的不同而不同。在實(shí)際電路中，往往存在電壓或 電流的峰值沖擊及紋波電流，或其它意外電沖擊，所以實(shí)際使用中降額設(shè)計是必要的。 建議一般降額至65%UR 以下，這樣才能保證產(chǎn)品及線路的完全性。當(dāng)環(huán)境溫度大于85℃時，應(yīng)考慮第3條降額基準(zhǔn)下的降額。

The failure rate of the tantalum capacitor is the difference of the DC rating (85 C, rated voltage), and due to the different conditions (ambient temperature, applied voltage, circuit resistance, etc.). In the actual circuit, the voltage or current is often the peak impulse and ripple current, or other unexpected electric shock, so the actual use of the drop design is necessary. Proposed general down to 65%UR below, so as to ensure that the product and the complete line. When the ambient temperature is greater than 85, the amount of the reduction should be considered in the third article.

非固體電解質(zhì)鉭電容器在用濕PH試紙檢漏前應(yīng)充分放電，否則將會因電容器放電不完全使試紙與電容器陽極接觸處呈紅色；試紙與電容器陰極接觸處呈蘭色，導(dǎo)致

Non solid electrolyte tantalum capacitors in wet PH test before the leak should fully discharge, otherwise it will be due to incomplete discharge of the capacitor to the contact strip and the capacitor anode is red; the contact strip and the capacitor cathode is blue LED