Chemical content MMBT3904

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Type number	Package	Package description	Total product weight
MMBT3904	SOT23	TO-236AB	7.66023 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
933864360235	5	1	260		1	235			D-22529 HAMBURG, Germany; Seremban, Malaysia; Melaka, Malaysia; Dongguan, China
933864360215	15	1	260		1	235			Seremban, Malaysia; Dongguan, China; D-22529 HAMBURG, Germany; Melaka, Malaysia

Subpart	Material group	Substances	CAS number	Mass(mg)	Mass(%) of subpart	Mass(%) of total product
Die	Doped silicon	Silicon (Si)	7440-21-3	0.04000	100.00000	0.52218
		subTotal		0.04000	100.00000	0.52218

Lead Frame	Iron-nickel alloy	Aluminium (Al)	7429-90-5	0.00229	0.09000	0.02995
		Carbon (C)	7440-44-0	0.00102	0.04000	0.01331
		Chromium (Cr)	7440-47-3	0.00561	0.22000	0.07321
		Cobalt (Co)	7440-48-4	0.01096	0.43000	0.14309
		Iron (Fe)	7439-89-6	1.22301	47.98000	15.96571
		Manganese (Mn)	7439-96-5	0.02192	0.86000	0.28617
		Nickel (Ni)	7440-02-0	0.92121	36.14000	12.02586
		Phosphorus (P)	7723-14-0	0.00051	0.02000	0.00666
		Silicon (Si)	7440-21-3	0.00663	0.26000	0.08652
		Sulphur (S)	7704-34-9	0.00051	0.02000	0.00666
	Pure metal layer	Copper (Cu)	7440-50-8	0.28982	11.37000	3.78345
		Silver (Ag)	7440-22-4	0.06551	2.57000	0.85519
		subTotal		2.54900	100.00000	33.27578

Mould Compound	Additive	Non hazardous	Proprietary	0.14149	2.90000	1.84709
		Triphenylphosphine	603-35-0	0.00244	0.05000	0.03185
	Filler	Silica -amorphous-	7631-86-9	3.51288	72.00000	45.85868
	Pigment	Carbon black	1333-86-4	0.00244	0.05000	0.03185
	Polymer	Epichlorohydrin/o-Cresol/Formaldehyde polymer (generic)	29690-82-2	0.73185	15.00000	9.55389
		Phenol Formaldehyde resin (generic)	9003-35-4	0.48790	10.00000	6.36926
		subTotal		4.87900	100.00000	63.69262

Post-Plating	Impurity	Lead (Pb)	7439-92-1	0.00001	0.00450	0.00011
		Non hazardous	Proprietary	0.00010	0.05550	0.00134
	Tin solder	Tin (Sn)	7440-31-5	0.18489	99.94000	2.41362
		subTotal		0.18500	100.00000	2.41507

Wire	Pure metal	Copper (Cu)	7440-50-8	0.00723	100.00000	0.09434
		subTotal		0.00723	100.00000	0.09434

		total		7.66023	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.