To-247 mphamvu resistor mphamvu ndi 100W-150W

Ku-247 mphamvu yotsutsa ya EAK kwa akatswiri opanga mapangidwe kuti apereke phukusi lokhazikika lamtundu wa transistor la zida zamphamvu kwambiri, mphamvu ndi 100W-150W
Zotsutsa izi zimapangidwira ntchito zomwe zimafuna kulondola komanso kukhazikika.Chotsutsacho chimapangidwa ndi alumina ceramic wosanjikiza chomwe chimalekanitsa chopinga ndi mbale yokwera.

Eak yowumbidwa TO-247 wandiweyani filimu mphamvu resistor
Kapangidwe kameneka kamapereka kukana kwamafuta otsika kwambiri ndikuwonetsetsa kukana kwakukulu pakati pa terminal ndi backplane yachitsulo.Zotsatira zake, zotsutsazi zimakhala ndi inductance yotsika kwambiri, zomwe zimawapangitsa kukhala oyenera kugwiritsira ntchito maulendo apamwamba komanso othamanga kwambiri.
Kukaniza kumachokera ku 0.1Ω mpaka 1 MΩ,Kutentha kogwira ntchito: -55°C mpaka +175°C.
EAK ipanganso zida zopitilira izi kuti zikwaniritse zofunikira zamakasitomala.Zotsutsa zamagetsi za EAK zimagwirizana ndi miyezo ya ROHS, pogwiritsa ntchito kuthetsa opanda lead.
Mawonekedwe:
■ 100 W mphamvu yogwiritsira ntchito
■TO-247 kasinthidwe ka phukusi
■Kuyika sikelo imodzi kumathandizira kumamatira ku sinki yotentha
■Mapangidwe osagwiritsa ntchito inductive
■ ROHS yogwirizana
■ Zida molingana ndi UL 94 V-0
M3 screw mount kwa radiator.Mpanda wowumbidwa umapereka chitetezo ndipo ndi yosavuta kukhazikitsa.Non-inductive design, magetsi kudzipatula nyumba.
Ntchito:
■ Terminal resistance mu RF power amplifier
■ Low mphamvu pulse load, grid resistor mu mphamvu
■ UPS, ma buffers, ma voltage regulators, load and discharge resistors mu CRT monitors

Mipata yokana: 0.05 Ω ≤ 1 MΩ (zofunika zina pa pempho lapadera)
Kukaniza Kulekerera: ± 1 0% mpaka ± 1%
Kutentha kokwanira: ≥ 10 Ω: ± 50 ppm/°C yotchulidwa ku 25 °C, ΔR yotengedwa pa +105 ° C
(TCR ina pa pempho lapadera la ma ohmic ochepera)
Mphamvu yamagetsi: 100 W pa 25 ° C pansi kutentha kwapansi kunatsika mpaka 0 W pa 175 ° C
Kuchuluka kwamagetsi ogwiritsira ntchito: 350 V , max.500 V pa pempho lapadera
Mphamvu yamagetsi yamagetsi: 1,800 V AC
Kukana kwa insulation:> 10 GΩ pa 1,000 V DC
Mphamvu zamagetsi: MIL-STD-202, njira 301 (1,800 V AC, 60 sec.) ΔR<±(0.15% + 0.0005 Ω)
Katundu moyo: MIL-R-39009D 4.8.13, 2,000 maola pa ovoteledwa mphamvu, ΔR<±(1.0% + 0.0005 Ω)
Kukana chinyezi: -10 ° C mpaka +65 ° C, RH > 90 % kuzungulira 240 h, ΔR<±(0.50% + 0.0005 Ω)
Thermalshock:MIL-STD-202, njira 107, Cond.F, ΔR = (0.50 % + 0.0005Ω) max
Kutentha kogwira ntchito: -55°C mpaka +175°C
Terminalstrength:MIL-STD-202, njira 211, Cond.A (Kokani Mayeso) 2.4 N, ΔR = (0.5 % + 0.0005Ω)
Kugwedezeka, pafupipafupi: MIL-STD-202, njira 204, Cond.D, ΔR = (0.4 % + 0.0005Ω)
Zida zotsogola: mkuwa wophimbidwa
Torque: 0.7 Nm mpaka 0.9 Nm M4 pogwiritsa ntchito screw M3 ndi njira yoyikira wahser
Kukana kutentha kwa mbale yozizira: Rth<1.5 K/W
Kulemera kwake: ~ 4g

Maupangiri Ogwiritsa Ntchito Ma Radiator Mounted Power film resistors
Dziwani kutentha ndi mphamvu yamagetsi:

Chithunzi 1-mvetsetsa kutentha ndi mphamvu
Kuphatikizika kwa zida zopangira kutentha:
1, Pali kusiyana chifukwa cha kusintha kwa malo okwerera pakati pa phukusi la resistor ndi radiator.Ma voids awa adzachepetsa kwambiri magwiridwe antchito a zida zamtundu wa TO.Choncho, kugwiritsa ntchito zipangizo zowonetsera kutentha kudzaza mipata ya mpweyayi ndikofunikira kwambiri.Zida zingapo zitha kugwiritsidwa ntchito kuchepetsa kukana kwamafuta pakati pa chopinga ndi radiator pamwamba.
2,mafuta a silicone oyendetsa kutentha ndi kuphatikiza kwa tinthu tating'ono totulutsa kutentha ndi madzi omwe amaphatikizana kupanga kusasinthika kofanana ndi mafuta.Madzi awa nthawi zambiri amakhala mafuta a silikoni, koma tsopano pali mafuta abwino kwambiri a "Non-silicon" otentha otentha.Thermally conductive silicone resins akhala akugwiritsidwa ntchito kwa zaka zambiri ndipo nthawi zambiri amakhala otsika kwambiri kukana kwazinthu zonse zomwe zilipo.
3,Magasi otulutsa kutentha ndi m'malo mwa silikoni yoyendetsa kutentha ndipo amapezeka kuchokera kwa opanga ambiri.Mapadi awa ali ndi pepala kapena mawonekedwe odulidwa kale ndipo amapangidwira ma phukusi osiyanasiyana monga TO-220 ndi To-247.The kutentha conduction gasket ndi zinthu spongy, amafunikira kukakamizidwa yunifolomu ndi ntchito olimba kuti athe kugwira ntchito bwinobwino.
Kusankha zigawo za hardware:
Hardware yoyenera ndi yofunika kwambiri pakupanga kuzizira bwino.Zidazi ziyenera kukhala zolimba komanso zofananira pazida kudzera panjinga yotentha popanda kusokoneza ma radiator kapena zida.
Okonza ambiri amakonda KULUMIKIZA DeMint KUTI mphamvu yotsutsa ndi radiator pogwiritsa ntchito kasupe kasupe m'malo mwa screw assembly.Makanema akasupe awa amapezeka kuchokera kwa opanga angapo omwe amapereka akasupe ambiri ndi ma radiator omwe amapangidwa makamaka kuti aziyika ma clip mu TO-220 ndi To-247 phukusi.Chotchinga chakumapeto chili ndi zabwino zambiri zomwe ndizosavuta kusonkhanitsa, koma mwayi wake waukulu ndikuti nthawi zonse zimakhala ndi mphamvu yabwino kwambiri pakati pa chopinga chamagetsi (onani Chithunzi 2)

Mkuyu. 3-screw ndi makina ochapira kuyika njira
Screw Mounting-belleville kapena makina ochapira tapered omwe amagwiritsidwa ntchito ndi zomangira ndi njira yabwino yolumikizira radiator.Ma washers a Belleville ndi makina ochapira masika opangidwa kuti azitha kupanikizika nthawi zonse pamitundu yosiyanasiyana.Ma gaskets amatha kupirira kutentha kwa nthawi yayitali popanda kusintha kwamphamvu.Chithunzi cha 3 chikuwonetsa masinthidwe ena amtundu wamtundu wapaintaneti pokwezera screw paketi ya TO KWA radiator.Ma washers osavuta, ochapira nyenyezi, ndi ma washers ambiri ogawaniza sayenera kugwiritsidwa ntchito m'malo mwa Belleville washers chifukwa samapereka kupanikizika kosalekeza ndipo amatha kuwononga chotsutsa.
Zolemba za Assembly:
1, Pewani kugwiritsa ntchito TO series power resistors pamisonkhano ya SMT.
2, Zida zopangira pulasitiki zomwe zimafewetsa kapena kukwawa pakatentha kwambiri ziyenera kupewedwa
3, Osalola kuti wononga mutu kukhudza resistor.Gwiritsani ntchito ma washers omveka bwino kapena ma washer opangidwa ndi tapered kuti mugawire mphamvuyo mofanana
4, Pewani zomangira zachitsulo, zomwe zimakonda kugudubuza m'mphepete mwa mabowo ndikupanga ma burrs owononga mu radiator.
5, Ma Rivets samalimbikitsidwa.Kugwiritsa ntchito ma rivets ndikovuta kusungitsa kupanikizika kosasintha ndipo kumatha kuwononga mapulasitiki apulasitiki mosavuta
6, Osawonjezera torque.Ngati zomangirazo zili zolimba kwambiri, phukusilo limatha kusweka kumapeto kwenikweni kwa screw (kutsogolo) kapena kukhala ndi chizolowezi chopinda m'mwamba.Zida za pneumatic sizovomerezeka.