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		Information on package SOT122D; Studless ceramic package; 4 leads
 | Outline drawing of package SOT122D |   |   
| Package version | Packagename | Package description | Issue date |  
| SOT122D  | -  | Studless ceramic package; 4 leads  | 99-03-29  |  
 
 | Chemical content of package SOT122 |   |   
	| Part | 
	Material | 
	Weight (mg) |  
	 | 
 
	| Leadframe | 
	FeNi42 | 
	150 mg | 
 
	| Heatspreader | 
	BeO
 | 
	120 mg | 
 
	| Solder/brazing pellet | 
	AgCu28GeCo | 
	30 mg | 
 
	| Nut | 
	CuZn37
 | 
	630 mg | 
 
	| Plastic/encapsulation | 
	Al2O3
 | 
	120 mg | 
 
	| Active device | 
	Si
 | 
	10 mg | 
 
	 | 
 
	| Total amount (approx.):  | 
	1900 mg | 
 
 
Composition of FeNi42
| Co | 0.5
 % |  | Fe | 56.5
 % |  | Mn | 1
 % |  | Ni | 42
 % |  
  
Composition of AgCu28GeCo
| Ag | 69.7
 % |  | Co | 0.3
 % |  | Cu | 28
 % |  | Ge | 2
 % |  
  
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