Bullhorn aina ya alumini capacitor electrolytic CN3

Maelezo Fupi:

Sifa za aina ya Bullhorn alumini capacitor electrolytic ni: ndogo ya kawaida, inaweza kukabiliana na Ultra-chini joto mazingira ya kazi. Inaweza kufanya kazi kwa masaa 3000 kwa 85 ℃. Inafaa kwa waongofu wa mzunguko, anatoa za viwanda, nk Inalingana na maagizo ya RoHS.


Maelezo ya Bidhaa

orodha ya nambari ya bidhaa

Lebo za Bidhaa

Vigezo kuu vya kiufundi

Kigezo cha Kiufundi

♦ 85℃ Saa 3000

♦ Kuegemea Juu, Halijoto ya Chini Zaidi

♦ LC ya Chini, Matumizi ya Chini

♦ Inakubaliwa na RoHS

Vipimo

Vipengee

Sifa

Kiwango cha joto ()

-40℃ 〜+85℃

Masafa ya Voltage(V)

350~500V.DC

Masafa ya Uwezo (uF)

47 〜1000*(20℃ 120Hz)

Uvumilivu wa Uwezo

±20%

Uvujaji wa Sasa (mA)

<0.94mA au 3 cv , mtihani wa dakika 5 kwa 20℃

Kiwango cha juu cha DF (20)

0.15(20℃, 120HZ)

Tabia za Halijoto(120 Hz)

C(-25℃)/C(+20℃)≥0.8 ; C(-40℃)/C(+20℃)≥0.65

Tabia za Impedans

Z(-25℃)/Z(+20℃)≤5 ; Z(-40℃)/Z(+20℃)≤8

Upinzani wa kuhami

Thamani inayopimwa kwa kutumia kijaribu cha kuzuia insulation ya DC 500V kati ya vituo vyote na pete ya snap yenye mkoba wa kuhami joto = 100 mΩ.

Voltage ya kuhami joto

Weka AC 2000V kati ya vituo vyote na snap pete na sleeve ya kuhami kwa dakika 1 na hakuna dosari inayoonekana.

Uvumilivu

Weka mkondo uliokadiriwa wa ripple kwenye capacitor yenye volteji isiyozidi volti iliyokadiriwa chini ya 85 ℃ ya mazingira na weka volteji iliyokadiriwa kwa masaa 3000, kisha urejeshe kwenye mazingira ya 20℃ na matokeo ya mtihani yanapaswa kukidhi mahitaji kama ilivyo hapo chini.

Kiwango cha mabadiliko ya uwezo (ΔC)

≤thamani ya awali 土20%

DF (tgδ)

≤200% ya thamani ya awali ya vipimo

Uvujaji wa sasa (LC)

≤thamani ya ubainishaji wa awali

ShelfLife

Capacitor huwekwa katika mazingira ya 85 ℃ kwa saa 1000, kisha kujaribiwa katika mazingira ya 20℃ na matokeo ya mtihani yanapaswa kukidhi mahitaji kama ilivyo hapo chini.

Kiwango cha mabadiliko ya uwezo (ΔC)

≤thamani ya awali 土 15%

DF (tgδ)

≤150% ya thamani ya awali ya vipimo

Uvujaji wa sasa (LC)

≤thamani ya ubainishaji wa awali

(Uchunguzi wa awali wa voltage unapaswa kufanywa kabla ya jaribio: weka volti iliyokadiriwa kwenye ncha zote mbili za capacitor kupitia kipingamizi cha takriban 1000Ω kwa Saa 1, kisha sambaza umeme kupitia kizuia 1Ω/V baada ya kufanyiwa matibabu mapema. Weka chini ya halijoto ya kawaida fbr 24hrs baada ya kutokwa kabisa, kisha uanze. mtihani.)

Mchoro wa Dimensional wa Bidhaa

Bullhorn aina ya alumini capacitor electrolytic CN31
Bullhorn aina ya alumini capacitor electrolytic CN32

ΦD

Φ22

Φ25

Φ30

Φ35

Φ40

B

11.6

11.8

11.8

11.8

12.25

C

8.4

10

10

10

10

Kigezo cha marekebisho ya sasa ya ripple

Vigezo vya fidia ya mara kwa mara

Mzunguko 50Hz 120Hz 500Hz 1KHz ≥10KHz
Sababu ya kusahihisha 0.8 1 1.2 1.25 1.4

Mgawo wa fidia ya halijoto

Halijoto iliyoko (℃) 40 ℃ 60 ℃ 85℃
Sababu ya kusahihisha 1.7 1.4 1

Bullhorn aina ya alumini capacitor electrolyticni capacitor ya kawaida, ambayo hutumiwa sana katika vifaa mbalimbali vya elektroniki na nyaya. Yafuatayo ni maombi maalum yacapacitors ya alumini ya aina ya pembe:

1. Kichujio cha kichujio cha nguvu: Kidhibiti cha chujio cha nguvu ni capacitor inayotumiwa kuleta utulivu wa ishara za DC.Bullhorn aina ya alumini capacitors electrolyticzinafaa kwa uchujaji wa usambazaji wa umeme, ambayo inaweza kusaidia kuondoa kelele na kushuka kwa thamani katika usambazaji wa umeme na kutoa nguvu thabiti ya DC.

2. Coupling capacitor: Katika baadhi ya nyaya za amplification, ni muhimu kuhamisha ishara au voltage kwenye mzunguko mwingine.Bullhorn alumini capacitors electrolyticinaweza kutumika kama viambatanishi vya kuunganisha kupitisha mawimbi au volti kwenye saketi za kukuza ili kuongeza mawimbi au volti.

3. Kichujio cha ishara: Capacitor ya aluminium ya aina ya Bullhorn inafaa kwa kichujio cha ishara. Katika baadhi ya matukio, kelele au usumbufu katika safu fulani za masafa unahitaji kuondolewa kutoka kwa mawimbi.Bullhorn alumini capacitors electrolyticinaweza kutumika kutengeneza vichungi vya kupita chini, pasi ya juu, bendi-pasi na kuacha bendi.

4. Udhibiti wa capacitor: Aaina ya bullhorn alumini capacitor electrolyticinaweza kutumika kama capacitor kudhibiti. Katika mizunguko mingine, thamani za capacitor zinahitaji kurekebishwa inavyohitajika ili kukidhi mahitaji maalum ya muundo. Thepembe-aina ya alumini capacitor electrolyticinaweza kurekebisha thamani ya uwezo ili kuifanya kukidhi mahitaji.

5. Mzunguko wa mfululizo: Katika baadhi ya nyaya maalum, capacitors zinahitajika ili kudhibiti muda na mzunguko.Alumini ya aina ya pembe capacitors electrolyticzinafaa kwa saketi zinazofuatana na zinaweza kutumika kutengeneza saketi kama vile vipima muda, oscillators na jenereta za kunde.

6. Antenna Capacitors: Katika nyaya za antenna, capacitors inahitajika ili kudhibiti majibu ya mzunguko na kupungua.Bullhorn alumini capacitors electrolyticinaweza kutumika kama capacitors ya antena kurekebisha mwitikio wa mzunguko na ulinganishaji wa kizuizi.
Kwa muhtasari,pembe-aina ya alumini capacitors electrolyticzinatumika sana na zinaweza kutumika katika vifaa na saketi mbalimbali za kielektroniki. Uthabiti na kuegemea kwake hufanya kuwa sehemu muhimu ya tasnia ya elektroniki.


  • Iliyotangulia:
  • Inayofuata:

  • Nambari ya Bidhaa Halijoto ya uendeshaji (℃) Voltage(V.DC) Uwezo (uF) Kipenyo(mm) Urefu(mm) Uvujaji wa sasa (uA) Ukadiriaji wa mkondo wa ripple [mA/rms] ESR/Impedans [Ωmax] Maisha (saa) Uthibitisho
    CN32G102MNNAS09S2 -40 ~ 85 400 1000 35 60 1897 3933.5 0.172 3000 -
    CN32W470MNNZS01S2 -40 ~ 85 450 47 22 20 436 454.5 3.951 3000 -
    CN32W560MNNZS01S2 -40 ~ 85 450 56 22 20 476 494.5 3.316 3000 -
    CN32W680MNNZS02S2 -40 ~ 85 450 68 22 25 525 594 2.731 3000 -
    CN32W680MNNYS01S2 -40 ~ 85 450 68 25 20 525 585.5 2.731 3000 -
    CN32W820MNNZS02S2 -40 ~ 85 450 82 22 25 576 648.1 2.264 3000 -
    CN32W820MNNYS01S2 -40 ~ 85 450 82 25 20 576 638.9 2.264 3000 -
    CN32W820MNNXS01S2 -40 ~ 85 450 82 30 20 576 714 2.264 3000 -
    CN32W101MNNZS03S2 -40 ~ 85 450 100 22 30 636 764.7 1.857 3000 -
    CN32W101MNNYS02S2 -40 ~ 85 450 100 25 25 636 762.5 1.857 3000 -
    CN32W101MNNXS01S2 -40 ~ 85 450 100 30 20 636 781.1 1.857 3000 -
    CN32W121MNNZS04S2 -40 ~ 85 450 120 22 35 697 886.4 1.547 3000 -
    CN32W121MNNYS03S2 -40 ~ 85 450 120 25 30 697 891.2 1.547 3000 -
    CN32W121MNNXS02S2 -40 ~ 85 450 120 30 25 697 921.6 1.547 3000 -
    CN32W121MNNAS01S2 -40 ~ 85 450 120 35 20 697 933.3 1.547 3000 -
    CN32W151MNNZS05S2 -40 ~ 85 450 150 22 40 779 1037.6 1.238 3000 -
    CN32W151MNNYS03S2 -40 ~ 85 450 150 25 30 779 984.3 1.238 3000 -
    CN32W151MNNXS02S2 -40 ~ 85 450 150 30 25 779 1017.9 1.238 3000 -
    CN32W151MNNAS01S2 -40 ~ 85 450 150 35 20 779 1031 1.238 3000 -
    CN32W181MNNZS06S2 -40 ~ 85 450 180 22 45 854 1183.2 1.032 3000 -
    CN32W181MNNYS04S2 -40 ~ 85 450 180 25 35 854 1136.6 1.032 3000 -
    CN32W181MNNXS03S2 -40 ~ 85 450 180 30 30 854 1183.7 1.032 3000 -
    CN32W181MNNAS02S2 -40 ~ 85 450 180 35 25 854 1209.4 1.032 3000 -
    CN32W221MNNZS07S2 -40 ~ 85 450 220 22 50 944 1355.4 0.844 3000 -
    CN32W221MNNYS05S2 -40 ~ 85 450 220 25 40 944 1315.2 0.844 3000 -
    CN32W221MNNXS03S2 -40 ~ 85 450 220 30 30 944 1293.6 0.844 3000 -
    CN32W221MNNAS02S2 -40 ~ 85 450 220 35 25 944 1321.7 0.844 3000 -
    CN32W271MNNYS06S2 -40 ~ 85 450 270 25 45 1046 1520.7 0.688 3000 -
    CN32W271MNNXS04S2 -40 ~ 85 450 270 30 35 1046 1512.7 0.688 3000 -
    CN32W271MNNAS03S2 -40 ~ 85 450 270 35 30 1046 1555.8 0.688 3000 -
    CN32W331MNNYS07S2 -40 ~ 85 450 330 25 50 1156 1746.5 0.563 3000 -
    CN32W331MNNXS05S2 -40 ~ 85 450 330 30 40 1156 1753.3 0.563 3000 -
    CN32W331MNNAS04S2 -40 ~ 85 450 330 35 35 1156 1812.4 0.563 3000 -
    CN32W391MNNXS06S2 -40 ~ 85 450 390 30 45 1257 1992.8 0.476 3000 -
    CN32W391MNNAS05S2 -40 ~ 85 450 390 35 40 1257 2068.5 0.476 3000 -
    CN32W471MNNXS07S2 -40 ~ 85 450 470 30 50 1380 2277.1 0.395 3000 -
    CN32W471MNNAS06S2 -40 ~ 85 450 470 35 45 1380 2371.6 0.395 3000 -
    CN32W561MNNAS07S2 -40 ~ 85 450 560 35 50 1506 2692 0.332 3000 -
    CN32W681MNNAS08S2 -40 ~ 85 450 680 35 55 1660 3000 0.273 3000 -
    CN32W821MNNAS09S2 -40 ~ 85 450 820 35 60 1822 3487 0.226 3000 -
    CN32W102MNNAG02S2 -40 ~ 85 450 1000 35 75 2013 4164.2 0.186 3000 -
    CN32H470MNNZS02S2 -40 ~ 85 500 47 22 25 460 430.9 4.233 3000 -
    CN32H560MNNZS02S2 -40 ~ 85 500 56 22 25 502 469.1 3.553 3000 -
    CN32H680MNNZS03S2 -40 ~ 85 500 68 22 30 553 556.4 2.926 3000 -
    CN32H680MNNYS02S2 -40 ~ 85 500 68 25 25 553 555.1 2.926 3000 -
    CN32H820MNNZS03S2 -40 ~ 85 500 82 22 30 608 608 2.426 3000 -
    CN32H820MNNYS02S2 -40 ~ 85 500 82 25 25 608 606.6 2.426 3000 -
    CN32H820MNNXS01S2 -40 ~ 85 500 82 30 20 608 621.8 2.426 3000 -
    CN32H101MNNZS04S2 -40 ~ 85 500 100 22 35 671 711.9 1.989 3000 -
    CN32H101MNNYS03S2 -40 ~ 85 500 100 25 30 671 716.3 1.989 3000 -
    CN32H101MNNXS02S2 -40 ~ 85 500 100 30 25 671 741.2 1.989 3000 -
    CN32H121MNNZS05S2 -40 ~ 85 500 120 22 40 735 820.7 1.658 3000 -
    CN32H121MNNYS04S2 -40 ~ 85 500 120 25 35 735 831 1.658 3000 -
    CN32H121MNNXS02S2 -40 ~ 85 500 120 30 25 735 806.2 1.658 3000 -
    CN32H121MNNAS01S2 -40 ~ 85 500 120 35 20 735 817.1 1.658 3000 -
    CN32H151MNNZS06S2 -40 ~ 85 500 150 22 45 822 957.6 1.326 3000 -
    CN32H151MNNYS04S2 -40 ~ 85 500 150 25 35 822 920.5 1.326 3000 -
    CN32H151MNNXS03S2 -40 ~ 85 500 150 30 30 822 959.2 1.326 3000 -
    CN32H151MNNAS02S2 -40 ~ 85 500 150 35 25 822 980.6 1.326 3000 -
    CN32H181MNNZS07S2 -40 ~ 85 500 180 22 50 900 1089.7 1.105 3000 -
    CN32H181MNNYS05S2 -40 ~ 85 500 180 25 40 900 1058 1.105 3000 -
    CN32H181MNNXS04S2 -40 ~ 85 500 180 30 35 900 1108.4 1.105 3000 -
    CN32H181MNNAS02S2 -40 ~ 85 500 180 35 25 900 1064.5 1.105 3000 -
    CN32H221MNNZS09S2 -40 ~ 85 500 220 22 60 995 1296.9 0.904 3000 -
    CN32H221MNNYS07S2 -40 ~ 85 500 220 25 50 995 1278.3 0.904 3000 -
    CN32H221MNNXS04S2 -40 ~ 85 500 220 30 35 995 1214.5 0.904 3000 -
    CN32H221MNNAS03S2 -40 ~ 85 500 220 35 30 995 1249.8 0.904 3000 -
    CN32H271MNNYS08S2 -40 ~ 85 500 270 25 55 1102 1468 0.737 3000 -
    CN32H271MNNXS05S2 -40 ~ 85 500 270 30 40 1102 1413 0.737 3000 -
    CN32H271MNNAS04S2 -40 ~ 85 500 270 35 35 1102 1461.5 0.737 3000 -
    CN32H331MNNYS10S2 -40 ~ 85 500 330 25 65 1219 1738.9 0.603 3000 -
    CN32H331MNNXS07S2 -40 ~ 85 500 330 30 50 1219 1707.5 0.603 3000 -
    CN32H331MNNAS05S2 -40 ~ 85 500 330 35 40 1219 1694.6 0.603 3000 -
    CN32H391MNNXS08S2 -40 ~ 85 500 390 30 55 1325 1927 0.51 3000 -
    CN32H391MNNAS06S2 -40 ~ 85 500 390 35 45 1325 1926.1 0.51 3000 -
    CN32H471MNNAS07S2 -40 ~ 85 500 470 35 50 1454 2205.8 0.423 3000 -
    CN32H561MNNAS08S2 -40 ~ 85 500 560 35 55 1588 2487.1 0.355 3000 -
    CN32H681MNNAS10S2 -40 ~ 85 500 680 35 65 1749 2923.4 0.293 3000 -
    CN32H821MNNAS10S2 -40 ~ 85 500 820 35 65 1921 3366 0.243 3000 -
    CN32H102MNNAG02S2 -40 ~ 85 500 1000 35 75 2121 1880 0.199 3000 -
    CN32V820MNNZS01S2 -40 ~ 85 350 82 22 20 508 697.1 1.941 3000 -
    CN32V121MNNZS02S2 -40 ~ 85 350 120 22 25 615 906.2 1.326 3000 -
    CN32V121MNNYS02S2 -40 ~ 85 350 120 25 25 615 973.7 1.326 3000 -
    CN32V151MNNZS03S2 -40 ~ 85 350 150 22 30 687 1079.2 1.061 3000 -
    CN32V151MNNYS02S2 -40 ~ 85 350 150 25 25 687 1074.9 1.061 3000 -
    CN32V151MNNXS01S2 -40 ~ 85 350 150 30 20 687 1100 1.061 3000 -
    CN32V181MNNZS03S2 -40 ~ 85 350 180 22 30 753 1167.6 0.884 3000 -
    CN32V181MNNYS02S2 -40 ~ 85 350 180 25 25 753 1163.1 0.884 3000 -
    CN32V181MNNXS01S2 -40 ~ 85 350 180 30 20 753 1190.3 0.884 3000 -
    CN32V221MNNZS04S2 -40 ~ 85 350 220 22 35 833 1356.7 0.723 3000 -
    CN32V221MNNYS03S2 -40 ~ 85 350 220 25 30 833 1362.9 0.723 3000 -
    CN32V221MNNXS02S2 -40 ~ 85 350 220 30 25 833 1408.1 0.723 3000 -
    CN32V221MNNAS01S2 -40 ~ 85 350 220 35 20 833 1424.9 0.723 3000 -
    CN32V271MNNZS05S2 -40 ~ 85 350 270 22 40 922 1568.4 0.589 3000 -
    CN32V271MNNYS04S2 -40 ~ 85 350 270 25 35 922 1585.8 0.589 3000 -
    CN32V271MNNXS02S2 -40 ~ 85 350 270 30 25 922 1536.1 0.589 3000 -
    CN32V271MNNAS01S2 -40 ~ 85 350 270 35 20 922 1554.6 0.589 3000 -
    CN32V331MNNZS06S2 -40 ~ 85 350 330 22 45 1020 1799.2 0.482 3000 -
    CN32V331MNNYS05S2 -40 ~ 85 350 330 25 40 1020 1828.7 0.482 3000 -
    CN32V331MNNXS03S2 -40 ~ 85 350 330 30 30 1020 1797.1 0.482 3000 -
    CN32V331MNNAS02S2 -40 ~ 85 350 330 35 25 1020 1834.8 0.482 3000 -
    CN32V391MNNYS06S2 -40 ~ 85 350 390 25 45 1108 2069.8 0.408 3000 -
    CN32V391MNNXS04S2 -40 ~ 85 350 390 30 35 1108 2057.3 0.408 3000 -
    CN32V391MNNAS03S2 -40 ~ 85 350 390 35 30 1108 2114.3 0.408 3000 -
    CN32V471MNNYS07S2 -40 ~ 85 350 470 25 50 1217 2355 0.339 3000 -
    CN32V471MNNXS04S2 -40 ~ 85 350 470 30 35 1217 2234.5 0.339 3000 -
    CN32V471MNNAS03S2 -40 ~ 85 350 470 35 30 1217 2296.5 0.339 3000 -
    CN32V561MNNXS05S2 -40 ~ 85 350 560 30 40 1328 2560.6 0.284 3000 -
    CN32V561MNNAS04S2 -40 ~ 85 350 560 35 35 1328 2645.2 0.284 3000 -
    CN32V681MNNXS07S2 -40 ~ 85 350 680 30 50 1464 3083.1 0.234 3000 -
    CN32V681MNNAS05S2 -40 ~ 85 350 680 35 40 1464 3055.9 0.234 3000 -
    CN32V821MNNAS06S2 -40 ~ 85 350 820 35 45 1607 3511.7 0.194 3000 -
    CN32V102MNNAS07S2 -40 ~ 85 350 1000 35 50 1775 4040.8 0.159 3000 -
    CN32G680MNNZS01S2 -40 ~ 85 400 68 22 20 495 587 2.536 3000 -
    CN32G820MNNZS02S2 -40 ~ 85 400 82 22 25 543 702.3 2.103 3000 -
    CN32G820MNNYS01S2 -40 ~ 85 400 82 25 20 543 691.9 2.103 3000 -
    CN32G101MNNZS02S2 -40 ~ 85 400 100 22 25 600 769.7 1.724 3000 -
    CN32G101MNNYS02S2 -40 ~ 85 400 100 25 25 600 827.5 1.724 3000 -
    CN32G121MNNZS03S2 -40 ~ 85 400 120 22 30 657 903 1.437 3000 -
    CN32G121MNNYS02S2 -40 ~ 85 400 120 25 25 657 899.8 1.437 3000 -
    CN32G121MNNXS01S2 -40 ~ 85 400 120 30 20 657 921.3 1.437 3000 -
    CN32G151MNNZS04S2 -40 ~ 85 400 150 22 35 735 1066.6 1.149 3000 -
    CN32G151MNNYS03S2 -40 ~ 85 400 150 25 30 735 1071.8 1.149 3000 -
    CN32G151MNNXS02S2 -40 ~ 85 400 150 30 25 735 1107.8 1.149 3000 -
    CN32G181MNNZS05S2 -40 ~ 85 400 180 22 40 805 1225.3 0.958 3000 -
    CN32G181MNNYS03S2 -40 ~ 85 400 180 25 30 805 1161.7 0.958 3000 -
    CN32G181MNNXS02S2 -40 ~ 85 400 180 30 25 805 1200.8 0.958 3000 -
    CN32G181MNNAS01S2 -40 ~ 85 400 180 35 20 805 1215.7 0.958 3000 -
    CN32G221MNNZS06S2 -40 ~ 85 400 220 22 45 890 1407.4 0.784 3000 -
    CN32G221MNNYS04S2 -40 ~ 85 400 220 25 35 890 1351.3 0.784 3000 -
    CN32G221MNNXS03S2 -40 ~ 85 400 220 30 30 890 1406.6 0.784 3000 -
    CN32G221MNNAS01S2 -40 ~ 85 400 220 35 20 890 1325.8 0.784 3000 -
    CN32G271MNNZS07S2 -40 ~ 85 400 270 22 50 986 1612.6 0.639 3000 -
    CN32G271MNNYS05S2 -40 ~ 85 400 270 25 40 986 1564 0.639 3000 -
    CN32G271MNNXS03S2 -40 ~ 85 400 270 30 30 986 1537.6 0.639 3000 -
    CN32G271MNNAS02S2 -40 ~ 85 400 270 35 25 986 1570.5 0.639 3000 -
    CN32G331MNNYS06S2 -40 ~ 85 400 330 25 45 1090 1802.3 0.522 3000 -
    CN32G331MNNXS04S2 -40 ~ 85 400 330 30 35 1090 1792.1 0.522 3000 -
    CN32G331MNNAS03S2 -40 ~ 85 400 330 35 30 1090 1842.4 0.522 3000 -
    CN32G391MNNYS07S2 -40 ~ 85 400 390 25 50 1185 2026.5 0.442 3000 -
    CN32G391MNNXS05S2 -40 ~ 85 400 390 30 40 1185 2033.6 0.442 3000 -
    CN32G391MNNAS04S2 -40 ~ 85 400 390 35 35 1185 2101.4 0.442 3000 -
    CN32G471MNNXS06S2 -40 ~ 85 400 470 30 45 1301 2332.4 0.367 3000 -
    CN32G471MNNAS04S2 -40 ~ 85 400 470 35 35 1301 2292.6 0.367 3000 -
    CN32G561MNNXS07S2 -40 ~ 85 400 560 30 50 1420 2623.9 0.308 3000 -
    CN32G561MNNAS05S2 -40 ~ 85 400 560 35 40 1420 2609.6 0.308 3000 -
    CN32G681MNNAS07S2 -40 ~ 85 400 680 35 50 1565 3119.5 0.254 3000 -
    CN32G821MNNAS08S2 -40 ~ 85 400 820 35 55 1718 3487.3 0.21 3000 -