×

Chemical content BUK7277-55A

Nexperia is committed to being a proactive and sustainable company, which is why chemical content information for our semiconductor products is publicly available from our website. This data serves our customers with the relevant information to assess compliance with national and international legal standards, including EU/CN RoHS, REACH, and California Proposition 65. With this detailed level of data directly retrieved from our product database, Nexperia is sticking to the highest standards in semiconductor industry. Further information is available under Environment.

Type numberPackagePackage descriptionTotal product weight
BUK7277-55ASOT428DPAK333.37773 mg
12NCVersionPb-free solderingPb solderingNumber of processing cyclesAssembly siteRHF-indicator
MSLPPTMPPTMSLPPTMPPT
9340562481181312601260Sherman, United States Of America; Cabuyao, Philippines; Manchester, United KingdomLeaded
SubpartMaterial groupSubstancesCAS numberMass(mg)Mass(%) of subpartMass(%) of total product
DieDoped siliconSilicon (Si)7440-21-31.32620100.000000.39781
subTotal1.32620100.000000.39781
Lead FrameCopper alloyCopper (Cu)7440-50-8202.2428998.7900060.66479
Iron (Fe)7439-89-60.204720.100000.06141
Nickel (Ni)7440-02-02.210981.080000.66320
Phosphorus (P)7723-14-00.061420.030000.01842
subTotal204.72000100.0000061.40782
Mould CompoundFillerSilica fused60676-86-091.8840078.0000027.56153
Flame retardantAntimony Pentoxide (Sb2O5)1314-60-91.178001.000000.35335
Bromophenol/Formaldehyde/Epichlorohydrin polymer68541-56-01.767001.500000.53003
PigmentCarbon black1333-86-40.471200.400000.14134
PolymerEpichlorohydrin/o-Cresol/Formaldehyde polymer (generic)29690-82-211.308809.600003.39219
Phenol Formaldehyde resin (generic)9003-35-411.191009.500003.35685
subTotal117.80000100.0000035.33529
Post-PlatingImpurityNon hazardousProprietary0.000730.010000.00022
Tin alloyTin (Sn)7440-31-57.2892799.990002.18649
subTotal7.29000100.000002.18671
Solder WireLead alloyLead (Pb)7439-92-11.1220093.500000.33656
Silver (Ag)7440-22-40.018001.500000.00540
Tin (Sn)7440-31-50.060005.000000.01800
subTotal1.20000100.000000.35996
WirePure metalAluminium (Al)7429-90-50.8873799.990000.26618
Nickel (Ni)7440-02-00.000090.010000.00003
subTotal0.88746100.000000.26621
WirePure metalAluminium (Al)7429-90-50.1540699.990000.04621
Nickel (Ni)7440-02-00.000020.010000.00000
subTotal0.15407100.000000.04621
total333.37773100.00000100.00000
Note(s):
1 This is a generic description of the substance used as the actual composition of the substances are either considered proprietary or no official CAS number is available. If a CAS number is given, it is the closest match available.
Disclaimer
All information in this document is furnished for exploratory or indicative purposes only. All information in this document is believed to be accurate and reliable. However, Nexperia does not give any representations or warranties as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Nexperia may make changes to information published in this document at any time and without notice. Minor deviations may occur in the products from different manufacturing location. This document supersedes and replaces all information supplied prior to the publication hereof. Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights.