Chemical content BUK7J1R4-40H

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Type number	Package	Package description	Total product weight
BUK7J1R4-40H	SOT1023	4 LEADS	113.65000 mg

12NC	Version	Pb-free soldering			Pb soldering			Number of processing cycles	Assembly site	RHF-indicator
12NC	Version	MSL	PPT	MPPT	MSL	PPT	MPPT	Number of processing cycles	Assembly site	RHF-indicator
934660082115	3	1	260		1	260			Newport, United Kingdom; Cabuyao, Philippines; Hsin-chu, Taiwan; Manchester, United Kingdom

Subpart	Material group	Substances	CAS number	Mass(mg)	Mass(%) of subpart	Mass(%) of total product
Die	Doped silicon	Silicon (Si)	7440-21-3	1.40000	100.00000	1.23185
		subTotal		1.40000	100.00000	1.23185

Clip	Copper alloy	Copper (Cu)	7440-50-8	27.34520	99.80000	24.06089
		Iron (Fe)	7439-89-6	0.04110	0.15000	0.03616
		Phosphorus (P)	7723-14-0	0.01370	0.05000	0.01205
		subTotal		27.40000	100.00000	24.10910

Lead Frame	Copper alloy	Copper (Cu)	7440-50-8	40.34748	99.87000	35.50152
		Iron (Fe)	7439-89-6	0.04040	0.10000	0.03555
		Phosphorus (P)	7723-14-0	0.01212	0.03000	0.01066
		subTotal		40.40000	100.00000	35.54773

Mould Compound	Filler	Silica fused	60676-86-0	18.81080	62.00000	16.55152
	Flame retardant	Aluminium Hydroxide (Al(OH)3)	21645-51-2	4.70270	15.50000	4.13788
	Impurity	Silicon Dioxide (SiO2)	14808-60-7	0.06068	0.20000	0.05339
	Pigment	Carbon black	1333-86-4	0.15170	0.50000	0.13348
	Polymer	Epichlorohydrin/o-Cresol/Formaldehyde polymer (generic)	29690-82-2	3.33740	11.00000	2.93656
		Phenolic resin	Proprietary	2.66992	8.80000	2.34925
		Tetramethylbiphenyl diglycidyl ether	85954-11-6	0.60680	2.00000	0.53392
		subTotal		30.34000	100.00000	26.69600

Post-Plating	Impurity	Non hazardous	Proprietary	0.00017	0.01000	0.00015
	Tin alloy	Tin (Sn)	7440-31-5	1.72983	99.99000	1.52207
		subTotal		1.73000	100.00000	1.52222

Solder Paste	Lead alloy	Lead (Pb)	7439-92-1	3.44100	92.50000	3.02772
		Silver (Ag)	7440-22-4	0.09300	2.50000	0.08183
		Tin (Sn)	7440-31-5	0.18600	5.00000	0.16366
		subTotal		3.72000	100.00000	3.27321

Solder Paste	Impurity	Antimony (Sb)	7440-36-0	0.00260	0.03000	0.00229
	Lead alloy	Lead (Pb)	7439-92-1	8.00790	92.47000	7.04611
		Silver (Ag)	7440-22-4	0.21650	2.50000	0.19050
		Tin (Sn)	7440-31-5	0.43300	5.00000	0.38099
		subTotal		8.66000	100.00000	7.61989

		total		113.65000	100.00000	100.00000

Note(s):
¹This 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.

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.

Restricted substances declaration

The many processes used to manufacture semiconductors are complex and delicate, and require a variety of specialized chemicals and materials. To protect our employees and the environment, we have several programs in place that regulate our use of hazardous chemicals or "substances of concern". In fact, we follow some of the toughest practical standards in the industry.

We carefully monitor our use of substances categorized as restricted, hazardous, or relevant, and have committed, as part of our near-term Sustainability Program, to achieving a 100% reduction of all restricted and hazardous substances that aren’t critical use. We track our usage of chemicals in our company-wide Chemical Management program, which registers and classifies the chemical substances we handle. Any use or emission of restricted or hazardous substances must be covered by internal dispensation, so we are searching for alternatives as quickly as possible.

The Nexperia List of Hazardous Substances in Products and Packaging specifies substances that are not permitted in materials, parts, semi-finished goods and products at levels above our established threshold to ensure that no Nexperia products put on the market contain any substances that are restricted by law or other regulations, including the European Union’s Directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment (commonly known as RoHS).

While most substances on this list are not permitted by law, a number of them are not permitted by Nexperia in view of upcoming legislation, their impact on the environment or on health & safety.

The Nexperia List of Hazardous Substances in Products and Packaging also contains a number of Restricted Substances. Use of these substances is allowed, but any use of these substances must be reported above the declaration threshold as specified in this list. Most substances are placed on this list because of health risks in their use and/or processing. Others are placed on this list because they limit recycling, because they are scarce or they have for instance a high environmental impact in mining.