Comparators

Browse available Comparators part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Package/Case	Packaging	Product Status	Type	Number of Bits	Output	Output Function	Voltage - Supply	Current - Output High, Low	Max Propagation Delay @ V, Max CL	Current - Quiescent (Iq)	Operating Temperature	Grade	Qualification	Supplier Device Package	Mounting Type
74HC85DB,112 IC COMPARATOR MAG 4BIT 16SSOP NXP USA Inc.	1,439	-	RFQ	Datasheet	74HC	16-SSOP (0.209", 5.30mm Width)	Tube	Active	Magnitude Comparator	4	Active High	AB	2V ~ 6V	5.2mA, 5.2mA	33ns @ 6V, 50pF	8 µA	-40°C ~ 125°C	-	-	16-SSOP	Surface Mount
SN74F521NS IC COMPARATOR IDENTITY 8BIT 20SO Texas Instruments	6,140	-	RFQ	Datasheet	74F	20-SOIC (0.209", 5.30mm Width)	Bulk	Active	Identity Comparator	8	Active Low	A=B	4.5V ~ 5.5V	1mA, 20mA	10ns @ 5V, 50pF	-	0°C ~ 70°C	-	-	20-SO	Surface Mount
74AC521SJ IC COMPARATOR IDENTITY 8B 20SOP Fairchild Semiconductor	3,440	-	RFQ	Datasheet	74AC	20-SOIC (0.209", 5.30mm Width)	Tube	Obsolete	Identity Comparator	8	Active Low	A=B	2V ~ 6V	24mA, 24mA	8.5ns @ 5V, 50pF	4 µA	-40°C ~ 85°C	-	-	20-SOP	Surface Mount
74HC688DB,118 IC COMPARATOR IDENTITY 8B 20SSOP Nexperia USA Inc.	1,915	-	RFQ	Datasheet	74HC	20-SSOP (0.209", 5.30mm Width)	Tape & Reel (TR)	Obsolete	Identity Comparator	8	Active Low	A=B	2V ~ 6V	5.2mA, 5.2mA	29ns @ 6V, 50pF	8 µA	-40°C ~ 125°C	-	-	20-SSOP	Surface Mount
MC14585BFELG IC COMPARATOR MAG 4BIT 16SOEIAJ onsemi	4,100	-	RFQ	Datasheet	4000B	16-SOIC (0.209", 5.30mm Width)	Tape & Reel (TR)	Obsolete	Magnitude Comparator	4	Active High	AB	3V ~ 18V	4.2mA, 4.2mA	260ns @ 15V, 50pF	20 µA	-55°C ~ 125°C	-	-	16-SOEIAJ	Surface Mount
74F521SCX IC COMPARATOR IDENTITY 8B 20SOIC Fairchild Semiconductor	16,000	-	RFQ	Datasheet	74F	20-SOIC (0.295", 7.50mm Width)	Bulk	Obsolete	Identity Comparator	8	Active Low	A=B	4.5V ~ 5.5V	1mA, 20mA	10ns @ 5V, 50pF	-	0°C ~ 70°C	-	-	20-SOIC	Surface Mount
CD74HCT85M96 IC COMPARATOR MAG 4BIT 16SOIC Texas Instruments	1,758	-	RFQ	Datasheet	74HCT	16-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Discontinued at Digi-Key	Magnitude Comparator	4	Active High	AB	4.5V ~ 5.5V	4mA, 4mA	40ns @ 4.5V, 50pF	8 µA	-55°C ~ 125°C	-	-	16-SOIC	Surface Mount
74LS85PC IC COMPARATOR MAG 4BIT 16DIP National Semiconductor	2,058	-	RFQ	Datasheet	74LS	16-DIP (0.300", 7.62mm)	Bulk	Active	Magnitude Comparator	4	Active High	AB	4.75V ~ 5.25V	-	45ns @ 5V, 15pF	20 mA	0°C ~ 70°C	-	-	16-PDIP	Through Hole
74F521SC IC COMPARATOR IDENTITY 8B 20SOIC Fairchild Semiconductor	20,492	-	RFQ	Datasheet	74F	20-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	Identity Comparator	8	Active Low	A=B	4.5V ~ 5.5V	1mA, 20mA	10ns @ 5V, 50pF	-	0°C ~ 70°C	-	-	20-SOIC	Surface Mount
CD74HC85NS IC COMPARATOR MAG 4BIT 16SO Texas Instruments	1,886	-	RFQ	Datasheet	74HC	16-SOIC (0.209", 5.30mm Width)	Bulk	Active	Magnitude Comparator	4	Active High	AB	2V ~ 6V	5.2mA, 5.2mA	33ns @ 6V, 50pF	8 µA	-55°C ~ 125°C	-	-	16-SO	Surface Mount
CD74FCT521ATM IC COMPARATOR IDENTITY 8B 20SOIC Harris Corporation	2,329	-	RFQ	Datasheet	-	20-SOIC (0.295", 7.50mm Width)	Bulk	Active	Identity Comparator	8	Active Low	A=B	4.75V ~ 5.25V	15mA, 48mA	7.2ns @ 5V, 50pF	500 µA	-40°C ~ 85°C	-	-	20-SOIC	Surface Mount
74F521SJX IC COMPARATOR IDENTITY 8B 20SOP Fairchild Semiconductor	4,000	-	RFQ	Datasheet	74F	20-SOIC (0.209", 5.30mm Width)	Bulk	Obsolete	Identity Comparator	8	Active Low	A=B	4.5V ~ 5.5V	1mA, 20mA	10ns @ 5V, 50pF	-	0°C ~ 70°C	-	-	20-SOP	Surface Mount
74F521SJ IC COMPARATOR IDENTITY 8B 20SOP Fairchild Semiconductor	5,846	-	RFQ	Datasheet	74F	20-SOIC (0.209", 5.30mm Width)	Tube	Obsolete	Identity Comparator	8	Active Low	A=B	4.5V ~ 5.5V	1mA, 20mA	10ns @ 5V, 50pF	-	0°C ~ 70°C	-	-	20-SOP	Surface Mount
CD74FCT521CTM IC COMPARATOR IDENTITY 8B 20SOIC Harris Corporation	2,242	-	RFQ	Datasheet	-	20-SOIC (0.295", 7.50mm Width)	Bulk	Active	Identity Comparator	8	Active Low	A=B	4.75V ~ 5.25V	15mA, 48mA	4.5ns @ 5V, 50pF	500 µA	-40°C ~ 85°C	-	-	20-SOIC	Surface Mount
CD74HC688PW IC COMPARATOR IDENTITY 20TSSOP Texas Instruments	1,820	-	RFQ	Datasheet	74HC	20-TSSOP (0.173", 4.40mm Width)	Bulk	Active	Identity Comparator	8	Active Low	A=B	2V ~ 6V	5.2mA, 5.2mA	29ns @ 6V, 50pF	8 µA	-55°C ~ 125°C	-	-	20-TSSOP	Surface Mount
74F521PC IC COMPARATOR IDENTITY 8B 20DIP Fairchild Semiconductor	2,623	-	RFQ	Datasheet	74F	20-DIP (0.300", 7.62mm)	Tube	Obsolete	Identity Comparator	8	Active Low	A=B	4.5V ~ 5.5V	1mA, 20mA	10ns @ 5V, 50pF	-	0°C ~ 70°C	-	-	20-PDIP	Through Hole
74HCT688N,652 IC COMPARATOR IDENTITY 8B 20DIP NXP USA Inc.	3,488	-	RFQ	Datasheet	74HCT	20-DIP (0.300", 7.62mm)	Tube	Obsolete	Identity Comparator	8	Active Low	A=B	4.5V ~ 5.5V	4mA, 4mA	34ns @ 4.5V, 50pF	8 µA	-40°C ~ 125°C	-	-	20-DIP	Through Hole
DM74ALS521WMX IC COMPARATOR IDENTITY 8B 20SOIC Fairchild Semiconductor	20,557	-	RFQ	Datasheet	74ALS	20-SOIC (0.295", 7.50mm Width)	Bulk	Obsolete	Identity Comparator	8	Active Low	A=B	4.5V ~ 5.5V	2.6mA, 24mA	20ns @ 5V, 50pF	-	0°C ~ 70°C	-	-	20-SOIC	Surface Mount
DM74ALS521N IC COMPARATOR IDENTITY 8B 20DIP Fairchild Semiconductor	11,391	-	RFQ	Datasheet	74ALS	20-DIP (0.300", 7.62mm)	Tube	Obsolete	Identity Comparator	8	Active Low	A=B	4.5V ~ 5.5V	2.6mA, 24mA	20ns @ 5V, 50pF	-	0°C ~ 70°C	-	-	20-PDIP	Through Hole
DM74ALS521WM IC COMPARATOR IDENTITY 8B 20SOIC Fairchild Semiconductor	6,893	-	RFQ	Datasheet	74ALS	20-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	Identity Comparator	8	Active Low	A=B	4.5V ~ 5.5V	2.6mA, 24mA	20ns @ 5V, 50pF	-	0°C ~ 70°C	-	-	20-SOIC	Surface Mount

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FREQUENTLY ASKED QUESTIONS

Comparators FAQ

Common questions about selecting, comparing and sourcing Comparators components through Winsun (HK) Electronics.

What should I check when selecting Comparators components?

Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.

Can Winsun help source specific Comparators part numbers?

Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.

Do you support shortage, obsolete or hard-to-find Comparators parts?

Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.

How do I request a quote for Comparators components?

Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.