Chemical content BUK4D122-20P

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Type number	Package	Package description	Total product weight
BUK4D122-20P	SOT1220	SOT1220	7.02436 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
934661264115	7	1	260		1	235			Hsin-chu, Taiwan; Dongguan, China

Subpart	Material group	Substances	CAS number	Mass(mg)	Mass(%) of subpart	Mass(%) of total product
Adhesive	Additive	Non hazardous	Proprietary	0.00070	1.00000	0.00997
	Filler	Silver (Ag)	7440-22-4	0.05880	84.00000	0.83709
	Polymer	Bismaleimidodiphenylmethane resin		0.00700	10.00000	0.09965
		Isobornyl Methacrylate	7534-94-3	0.00350	5.00000	0.04983
		subTotal		0.07000	100.00000	0.99654

Die	Doped silicon	Silicon (Si)	7440-21-3	0.15000	100.00000	2.13543
		subTotal		0.15000	100.00000	2.13543

Lead Frame	Copper alloy	Copper (Cu)	7440-50-8	2.70491	93.59560	38.50761
		Magnesium (Mg)	7439-95-4	0.00422	0.14590	0.06003
		Nickel (Ni)	7440-02-0	0.08435	2.91880	1.20087
		Silicon (Si)	7440-21-3	0.01828	0.63240	0.26019
	Pure metal layer	Gold (Au)	7440-57-5	0.00096	0.03330	0.01370
		Nickel (Ni)	7440-02-0	0.07401	2.56100	1.05366
		Palladium (Pd)	7440-05-3	0.00327	0.11300	0.04649
		subTotal		2.89000	100.00000	41.14255

Mould Compound	Filler	Silica -amorphous-	7631-86-9	0.85790	23.00000	12.21321
		Silica fused	60676-86-0	2.23800	60.00000	31.86055
	Flame retardant	Metal hydroxide	Proprietary	0.11190	3.00000	1.59303
	Impurity	Bismuth (Bi)	7440-69-9	0.01865	0.50000	0.26550
	Pigment	Carbon black	1333-86-4	0.01865	0.50000	0.26550
	Polymer	Epoxy resin system	Proprietary	0.26110	7.00000	3.71706
		Phenolic resin	Proprietary	0.22380	6.00000	3.18606
		subTotal		3.73000	100.00000	53.10091

Post-Plating	Impurity	Lead (Pb)	7439-92-1	0.00001	0.00450	0.00011
		Non hazardous	Proprietary	0.00009	0.05550	0.00134
	Tin solder	Tin (Sn)	7440-31-5	0.16990	99.94000	2.41870
		subTotal		0.17000	100.00000	2.42015

Wire	Impurity	Non hazardous	Proprietary	0.00000	0.01000	0.00002
	Pure metal	Copper (Cu)	7440-50-8	0.01436	99.99000	0.20446
		subTotal		0.01436	100.00000	0.20448

		total		7.02436	100.00000	100.00000

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.