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FILTERED PRODUCT SELECTION

Comparators

Use the filters and product table below to compare Comparators components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.

If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.

Parametric Selection Filter options by technical parameters
Stock & Datasheets Review availability and technical references
RFQ & BOM Support Send your target MPN, quantity or BOM
Photo 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
74ACT521MTCX Fairchild Semiconductor

74ACT521MTCX

IC COMPARATOR IDENTITY 20TSSOP

Fairchild Semiconductor

1,900 -
Datasheet 74ACT 20-TSSOP (0.173", 4.40mm Width) Bulk Obsolete Identity Comparator 8 Active Low A=B 4.5V ~ 5.5V 24mA, 24mA 10ns @ 5V, 50pF 4 µA -40°C ~ 85°C - - 20-TSSOP Surface Mount
MM74HC688WM Fairchild Semiconductor

MM74HC688WM

IC COMPARATOR IDENTITY 8B 20SOIC

Fairchild Semiconductor

7,965 -
Datasheet 74HC 20-SOIC (0.295", 7.50mm Width) Tube Obsolete Identity Comparator 8 Active Low A=B 2V ~ 6V 5.2mA, 5.2mA 30ns @ 6V, 50pF 8 µA -40°C ~ 85°C - - 20-SOIC Surface Mount
74AC520PC Fairchild Semiconductor

74AC520PC

IC COMPARATOR IDENTITY 8B 20DIP

Fairchild Semiconductor

4,500 -
Datasheet 74AC 20-DIP (0.300", 7.62mm) Tube Obsolete Identity Comparator 8 Active Low A=B 2V ~ 6V 24mA, 24mA 9ns @ 5V, 50pF 4 µA -40°C ~ 85°C - - 20-PDIP Through Hole
74AC521SJ Fairchild Semiconductor

74AC521SJ

IC COMPARATOR IDENTITY 8B 20SOP

Fairchild Semiconductor

3,440 -
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
74F521SCX Fairchild Semiconductor

74F521SCX

IC COMPARATOR IDENTITY 8B 20SOIC

Fairchild Semiconductor

16,000 -
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
74F521SC Fairchild Semiconductor

74F521SC

IC COMPARATOR IDENTITY 8B 20SOIC

Fairchild Semiconductor

20,492 -
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
74F521SJX Fairchild Semiconductor

74F521SJX

IC COMPARATOR IDENTITY 8B 20SOP

Fairchild Semiconductor

4,000 -
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 Fairchild Semiconductor

74F521SJ

IC COMPARATOR IDENTITY 8B 20SOP

Fairchild Semiconductor

5,846 -
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
74F521PC Fairchild Semiconductor

74F521PC

IC COMPARATOR IDENTITY 8B 20DIP

Fairchild Semiconductor

2,623 -
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
DM74ALS521WMX Fairchild Semiconductor

DM74ALS521WMX

IC COMPARATOR IDENTITY 8B 20SOIC

Fairchild Semiconductor

20,557 -
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
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WINSUN SOURCING SUPPORT

Need Help Sourcing Comparators?

Send the target part number, manufacturer, specifications and quantity. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and alternative-part options when appropriate.

Availability and lead-time support BOM, shortage and alternative sourcing
FREQUENTLY ASKED QUESTIONS

Comparators FAQ

Common questions about filtering, comparing and sourcing Comparators components.

How can I narrow the Comparators selection?

Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.

Should I confirm the datasheet before selecting a part?

Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

Can Winsun (HK) Electronics help source a specific Comparators part number?

Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

Do you support BOM, shortage or alternative-part requirements?

Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.