{"v":"2.0","page_type":"product","title":"U2TD420 SemiConductor - CASE: SOT128 MAKE: Unitrode","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"Unitrode","href":"/python/html6/menu_brand_products/1000/156000/menu_brand_products_Unitrode_1_9b930bd3a6.html"},{"label":"U2TD420","href":null}],"content":{"product":{"mpn":"U2TD420","manufacturer":"Unitrode","brand":"Unitrode","brand_url":"/python/html6/menu_brand_products/1000/156000/menu_brand_products_Unitrode_1_9b930bd3a6.html","title":"U2TD420 SemiConductor - CASE: SOT128 MAKE: Unitrode","description":"","attributes":[{"name":"Brand name","values":[{"value":"Unitrode","url":"/python/html6/menu_attr_pair/1000/39000000/39925000/menu_attr_pair_Brandname_Unitrode_1_fea6352b95.html"}],"name_url":"/python/html6/menu_attr_pair/1000/39000000/39925000/menu_attr_pair_Brandname_Unitrode_1_fea6352b95.html"},{"name":"Manufacturer name","values":[{"value":"Unitrode","url":"/python/html6/menu_attr_pair/1000/155000000/155550000/menu_attr_pair_Manufacturername_Unitrode_1_ebc6490086.html"}],"name_url":"/python/html6/menu_attr_pair/1000/155000000/155550000/menu_attr_pair_Manufacturername_Unitrode_1_ebc6490086.html"},{"name":"Manufacturer","values":[{"value":"Unitrode","url":"/python/html6/menu_attr_pair/1000/21000000/21225000/menu_attr_pair_Manufacturer_Unitrode_1_445ea6fe61.html"}],"name_url":"/python/html6/menu_attr_pair/1000/21000000/21225000/menu_attr_pair_Manufacturer_Unitrode_1_445ea6fe61.html"},{"name":"keywords","values":[{"value":"Buy U2TD420, U2TD420, U2TD420 SemiConductor","url":"/python/html6/menu_attr_pair/1000/133000000/133590000/menu_attr_pair_keywords_BuyU2TD420U2TD420U2TD420SemiConductor_1_e2c9f125dc.html"}],"name_url":"/python/html6/menu_attr_pair/1000/133000000/133590000/menu_attr_pair_keywords_BuyU2TD420U2TD420U2TD420SemiConductor_1_e2c9f125dc.html"},{"name":"moq","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/164000000/164262000/menu_attr_pair_moq_1_1_29ca727a89.html"}],"name_url":"/python/html6/menu_attr_pair/1000/164000000/164262000/menu_attr_pair_moq_1_1_29ca727a89.html"},{"name":"MPN","values":[{"value":"U2TD420","url":"/python/html6/menu_attr_pair/1000/241000000/241912000/menu_attr_pair_MPN_U2TD420_1_7fc1e9588c.html"}],"name_url":"/python/html6/menu_attr_pair/1000/241000000/241912000/menu_attr_pair_MPN_U2TD420_1_7fc1e9588c.html"},{"name":"multiple","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/257000000/257999000/menu_attr_pair_multiple_1_1_2f60c1bab8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/257000000/257999000/menu_attr_pair_multiple_1_1_2f60c1bab8.html"},{"name":"originalCurrency","values":[{"value":"{'currency': 'GBP'}","url":"/python/html6/menu_attr_pair/1000/202000000/202184000/menu_attr_pair_originalCurrency_currencyGBP_1_52e80fed08.html"}],"name_url":"/python/html6/menu_attr_pair/1000/202000000/202184000/menu_attr_pair_originalCurrency_currencyGBP_1_52e80fed08.html"},{"name":"qtyInStock","values":[{"value":"0","url":"/python/html6/menu_attr_pair/1000/119000000/119332000/menu_attr_pair_qtyInStock_0_1_38510c9e21.html"}],"name_url":"/python/html6/menu_attr_pair/1000/119000000/119332000/menu_attr_pair_qtyInStock_0_1_38510c9e21.html"},{"name":"SKU","values":[{"value":"U2TD420","url":"/python/html6/menu_attr_pair/1000/161000000/161386000/menu_attr_pair_SKU_U2TD420_1_61ed4778c4.html"}],"name_url":"/python/html6/menu_attr_pair/1000/161000000/161386000/menu_attr_pair_SKU_U2TD420_1_61ed4778c4.html"},{"name":"snippet","values":[{"value":"U2TD420 SemiConductor - CASE: SOT128 MAKE: Unitrode","url":"/python/html6/menu_attr_pair/1000/94000000/94542000/menu_attr_pair_snippet_U2TD420SemiConductorCASESOT128MAKEUnitrode_1_a01ed21f96.html"}],"name_url":"/python/html6/menu_attr_pair/1000/94000000/94542000/menu_attr_pair_snippet_U2TD420SemiConductorCASESOT128MAKEUnitrode_1_a01ed21f96.html"},{"name":"Case","values":[{"value":"SOT128","url":"/python/html6/menu_attr_pair/1000/231000000/231696000/menu_attr_pair_Case_SOT128_1_0322b02381.html"}],"name_url":"/python/html6/menu_attr_pair/1000/231000000/231696000/menu_attr_pair_Case_SOT128_1_0322b02381.html"},{"name":"Type","values":[{"value":"Transistor Silicon NPN","url":"/python/html6/menu_attr_pair/1000/1000000/1489000/menu_attr_pair_Type_TransistorSiliconNPN_1_d16af0bd11.html"}],"name_url":"/python/html6/menu_attr_pair/1000/1000000/1489000/menu_attr_pair_Type_TransistorSiliconNPN_1_d16af0bd11.html"},{"name":"Vbr CEO","values":[{"value":"200","url":"/python/html6/menu_attr_pair/1000/171000000/171254000/menu_attr_pair_VbrCEO_200_1_b2ff8f688e.html"}],"name_url":"/python/html6/menu_attr_pair/1000/171000000/171254000/menu_attr_pair_VbrCEO_200_1_b2ff8f688e.html"},{"name":"Max PD (W)","values":[{"value":"15","url":"/python/html6/menu_attr_pair/1000/58000000/58950000/menu_attr_pair_MaxPDW_15_1_f4c385c054.html"}],"name_url":"/python/html6/menu_attr_pair/1000/58000000/58950000/menu_attr_pair_MaxPDW_15_1_f4c385c054.html"},{"name":"t(f) Max (S)","values":[{"value":"1.0u-","url":"/python/html6/menu_attr_pair/1000/206000000/206684000/menu_attr_pair_tfMaxS_10u_1_f3d3c59965.html"}],"name_url":"/python/html6/menu_attr_pair/1000/206000000/206684000/menu_attr_pair_tfMaxS_10u_1_f3d3c59965.html"},{"name":"Min hFE","values":[{"value":"300","url":"/python/html6/menu_attr_pair/1000/236000000/236081000/menu_attr_pair_MinhFE_300_1_d2a9afb0af.html"}],"name_url":"/python/html6/menu_attr_pair/1000/236000000/236081000/menu_attr_pair_MinhFE_300_1_d2a9afb0af.html"},{"name":"Ic Max (A)","values":[{"value":"2.0","url":"/python/html6/menu_attr_pair/1000/156000000/156032000/menu_attr_pair_IcMaxA_20_1_93cdf7cfb1.html"}],"name_url":"/python/html6/menu_attr_pair/1000/156000000/156032000/menu_attr_pair_IcMaxA_20_1_93cdf7cfb1.html"},{"name":"@Ic (test) (A)","values":[{"value":"2.0","url":"/python/html6/menu_attr_pair/1000/95000000/95304000/menu_attr_pair_IctestA_20_1_d84a0c4b9f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/95000000/95304000/menu_attr_pair_IctestA_20_1_d84a0c4b9f.html"},{"name":"Icbo Max @Vcb Max (A)","values":[{"value":"10u+","url":"/python/html6/menu_attr_pair/1000/252000000/252802000/menu_attr_pair_IcboMaxVcbMaxA_10u_1_444604b0d3.html"}],"name_url":"/python/html6/menu_attr_pair/1000/252000000/252802000/menu_attr_pair_IcboMaxVcbMaxA_10u_1_444604b0d3.html"},{"name":"Mat","values":[{"value":"Silicon Logic","url":"/python/html6/menu_attr_pair/1000/213000000/213881000/menu_attr_pair_Mat_SiliconLogic_1_7c0e54264e.html"}],"name_url":"/python/html6/menu_attr_pair/1000/213000000/213881000/menu_attr_pair_Mat_SiliconLogic_1_7c0e54264e.html"},{"name":"Polarity","values":[{"value":"NPN","url":"/python/html6/menu_attr_pair/1000/60000000/60895000/menu_attr_pair_Polarity_NPN_1_838793305d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/60000000/60895000/menu_attr_pair_Polarity_NPN_1_838793305d.html"},{"name":"Tr Max (s)","values":[{"value":"600n-","url":"/python/html6/menu_attr_pair/1000/31000000/31495000/menu_attr_pair_TrMaxs_600n_1_38581d8b8f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/31000000/31495000/menu_attr_pair_TrMaxs_600n_1_38581d8b8f.html"},{"name":"R(sat) (?)","values":[{"value":"750m","url":"/python/html6/menu_attr_pair/1000/206000000/206169000/menu_attr_pair_Rsat_750m_1_593cbd9dab.html"}],"name_url":"/python/html6/menu_attr_pair/1000/206000000/206169000/menu_attr_pair_Rsat_750m_1_593cbd9dab.html"},{"name":"t(stor) Max (S)","values":[{"value":"1.5u-","url":"/python/html6/menu_attr_pair/1000/171000000/171800000/menu_attr_pair_tstorMaxS_15u_1_cd25ea57f0.html"}],"name_url":"/python/html6/menu_attr_pair/1000/171000000/171800000/menu_attr_pair_tstorMaxS_15u_1_cd25ea57f0.html"},{"name":"Derate Above 25?C","values":[{"value":"11m","url":"/python/html6/menu_attr_pair/1000/194000000/194329000/menu_attr_pair_DerateAbove25C_11m_1_2044dd44c8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/194000000/194329000/menu_attr_pair_DerateAbove25C_11m_1_2044dd44c8.html"},{"name":"Trans Freq (Hz) Min","values":[{"value":"40M","url":"/python/html6/menu_attr_pair/1000/94000000/94874000/menu_attr_pair_TransFreqHzMin_40M_1_40fbf958d9.html"}],"name_url":"/python/html6/menu_attr_pair/1000/94000000/94874000/menu_attr_pair_TransFreqHzMin_40M_1_40fbf958d9.html"},{"name":"@VCE (test)","values":[{"value":"5.0","url":"/python/html6/menu_attr_pair/1000/82000000/82664000/menu_attr_pair_VCEtest_50_1_e87deb1399.html"}],"name_url":"/python/html6/menu_attr_pair/1000/82000000/82664000/menu_attr_pair_VCEtest_50_1_e87deb1399.html"},{"name":"Oper Temp (?C) Max","values":[{"value":"150","url":"/python/html6/menu_attr_pair/1000/132000000/132421000/menu_attr_pair_OperTempCMax_150_1_1e79e088ad.html"}],"name_url":"/python/html6/menu_attr_pair/1000/132000000/132421000/menu_attr_pair_OperTempCMax_150_1_1e79e088ad.html"},{"name":"Pinout Equivalence Number","values":[{"value":"3-35","url":"/python/html6/menu_attr_pair/1000/99000000/99758000/menu_attr_pair_PinoutEquivalenceNumber_335_1_ac41a9f90f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/99000000/99758000/menu_attr_pair_PinoutEquivalenceNumber_335_1_ac41a9f90f.html"},{"name":"Surface Mounted Yes/No","values":[{"value":"NO","url":"/python/html6/menu_attr_pair/1000/76000000/76982000/menu_attr_pair_SurfaceMountedYesNo_NO_1_8382a68467.html"}],"name_url":"/python/html6/menu_attr_pair/1000/76000000/76982000/menu_attr_pair_SurfaceMountedYesNo_NO_1_8382a68467.html"},{"name":"Maximum Collector Power Dissipation (Pc)","values":[{"value":"15 W","url":"/python/html6/menu_attr_pair/1000/14000000/14180000/menu_attr_pair_MaximumCollectorPowerDissipationPc_15W_1_e5674ae708.html"}],"name_url":"/python/html6/menu_attr_pair/1000/14000000/14180000/menu_attr_pair_MaximumCollectorPowerDissipationPc_15W_1_e5674ae708.html"},{"name":"Maximum Collector-Base Voltage |Vcb|","values":[{"value":"250 V","url":"/python/html6/menu_attr_pair/1000/252000000/252189000/menu_attr_pair_MaximumCollectorBaseVoltageVcb_250V_1_c57103ec82.html"}],"name_url":"/python/html6/menu_attr_pair/1000/252000000/252189000/menu_attr_pair_MaximumCollectorBaseVoltageVcb_250V_1_c57103ec82.html"},{"name":"Maximum Collector-Emitter Voltage |Vce|","values":[{"value":"200 V","url":"/python/html6/menu_attr_pair/1000/20000000/20161000/menu_attr_pair_MaximumCollectorEmitterVoltageVce_200V_1_68be25e415.html"}],"name_url":"/python/html6/menu_attr_pair/1000/20000000/20161000/menu_attr_pair_MaximumCollectorEmitterVoltageVce_200V_1_68be25e415.html"},{"name":"Maximum Emitter-Base Voltage |Veb|","values":[{"value":"5 V","url":"/python/html6/menu_attr_pair/1000/186000000/186616000/menu_attr_pair_MaximumEmitterBaseVoltageVeb_5V_1_76fb9dd9c6.html"}],"name_url":"/python/html6/menu_attr_pair/1000/186000000/186616000/menu_attr_pair_MaximumEmitterBaseVoltageVeb_5V_1_76fb9dd9c6.html"},{"name":"Maximum Collector Current |Ic max|","values":[{"value":"2 A","url":"/python/html6/menu_attr_pair/1000/148000000/148709000/menu_attr_pair_MaximumCollectorCurrentIcmax_2A_1_fea686103e.html"}],"name_url":"/python/html6/menu_attr_pair/1000/148000000/148709000/menu_attr_pair_MaximumCollectorCurrentIcmax_2A_1_fea686103e.html"},{"name":"Max Operating Junction Temperature (Tj)","values":[{"value":"150 ?C","url":"/python/html6/menu_attr_pair/1000/129000000/129184000/menu_attr_pair_MaxOperatingJunctionTemperatureTj_150C_1_a3124eeb19.html"}],"name_url":"/python/html6/menu_attr_pair/1000/129000000/129184000/menu_attr_pair_MaxOperatingJunctionTemperatureTj_150C_1_a3124eeb19.html"},{"name":"Collector Capacitance (Cc)","values":[{"value":"100 pF","url":"/python/html6/menu_attr_pair/1000/256000000/256030000/menu_attr_pair_CollectorCapacitanceCc_100pF_1_a9b41fbcfd.html"}],"name_url":"/python/html6/menu_attr_pair/1000/256000000/256030000/menu_attr_pair_CollectorCapacitanceCc_100pF_1_a9b41fbcfd.html"},{"name":"Transition Frequency (ft):","values":[{"value":"20 MHz","url":"/python/html6/menu_attr_pair/1000/220000000/220634000/menu_attr_pair_TransitionFrequencyft_20MHz_1_898c375142.html"}],"name_url":"/python/html6/menu_attr_pair/1000/220000000/220634000/menu_attr_pair_TransitionFrequencyft_20MHz_1_898c375142.html"},{"name":"Forward Current Transfer Ratio (hFE), MIN","values":[{"value":"300","url":"/python/html6/menu_attr_pair/1000/124000000/124917000/menu_attr_pair_ForwardCurrentTransferRatiohFEMIN_300_1_e71a85e4d3.html"}],"name_url":"/python/html6/menu_attr_pair/1000/124000000/124917000/menu_attr_pair_ForwardCurrentTransferRatiohFEMIN_300_1_e71a85e4d3.html"}],"images":[],"distributors":[{"name":"Little Diode","sku":"U2TD420","url":"https://www.littlediode.com/components/U2TD420.html","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1}],"amazon":{"available":false,"products":[]},"metadata":{"generated_date":"2026-09-17","last_updated":"2026-09-17","data_sources":["Little Diode"],"completeness":0.75,"version":"1.2"}}},"pagination":null,"nav":{"home":"/python/html6/index.html","brands":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html","parts":"/python/html6/menu_part_index/menu_part_index_parts_909e6bf0ca.html","attributes":"/python/html6/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"}}