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Sigmatel

Comparator

Part Number	Similarity	Status	Pb-free	Description
NE521N onsemi	Pin to Pin	Obsolete	NO	Dual Differential Comparator/Sense Amp, PDIP-14, 25-TUBE
NE521A Signetics	Pin to Pin	Obsolete	NO	Comparator, 2 Func, 10000uV Offset-Max, BIPolar, PDIP14
NE521NG Rochester Electronics LLC	Pin to Pin	Obsolete	NO	Comparator, 2 Func, 10000uV Offset-Max, 9.6ns Response Time, BIPolar, PDIP14, LEAD FREE, PLASTIC, DIP-14
5962-8751601CA QP Semiconductor	Pin to Pin		NO	Comparator, 2 Func, 15000uV Offset-Max, BIPolar, CDIP14, CERAMIC, DIP-14
NE521A NXP Semiconductors	Pin to Pin	Obsolete	NO	IC DUAL COMPARATOR, 10000 uV OFFSET-MAX, PDIP14, Comparator

Inreon.net

Authorized Distributor

Part Number	Manufacturers	Description	Availability	Pricing(USD)	Quantity	Operate
NE521F	Sigmatel	Original factory channel, spot order	1725	$3.397

hannchip

Authorized Distributor

Part Number	Manufacturers	Description	Availability	Pricing(USD)	Quantity	Operate
NE521F	Sigmatel	AVAILABLE	9274	$3.497

anweil.com

Authorized Distributor

Part Number	Manufacturers	Description	Availability	Pricing(USD)	Quantity	Operate
Sigmatel NE521F Anweil	Sigmatel	Original	718

mlccbase

Shenzhen Mlccbase Electronics Technology Co., Ltd

Part Number	Manufacturers	Description	Availability	Pricing(USD)	Quantity	Operate
NE521F	Sigmatel	Sigmatel-NE521F	30058	$4.063

leacores

Authorized Distributor

Part Number	Manufacturers	Description	Availability	Pricing(USD)	Quantity	Operate
NE521F	Sigmatel	AVAILABLE	13840	$3.763

izsource

Authorized Distributor

Part Number	Manufacturers	Description	Availability	Pricing(USD)	Quantity	Operate
NE521F	Sigmatel	Original	27761	$3.996