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.
For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CD74HC688M96E4IC COMPARATOR IDENTITY 8B 20SOIC |
2,771 | - |
|
Datasheet | 74HC | 20-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Identity Comparator | 8 | Active Low | A=B | 2V ~ 6V | 5.2mA, 5.2mA | 29ns @ 6V, 50pF | 8 µA | -55°C ~ 125°C | - | - | 20-SOIC | Surface Mount |
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SN74ALS521DWRE4IC COMPARATOR IDENTITY 8B 20SOIC |
4,277 | - |
|
Datasheet | 74ALS | 20-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | 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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SN74ALS520DWRIC COMPARATOR IDENTITY 8B 20SOIC |
4,074 | - |
|
Datasheet | 74ALS | 20-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | 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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SN74ALS520DWRE4IC COMPARATOR IDENTITY 8B 20SOIC |
2,540 | - |
|
Datasheet | 74ALS | 20-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | 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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SN74ALS520DWRG4IC COMPARATOR IDENTITY 8B 20SOIC |
3,480 | - |
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Datasheet | 74ALS | 20-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | 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 |
|
IDT74FCT521CTPYGIC COMPARATOR IDENTITY 8B 20SSOP |
4,777 | - |
|
Datasheet | 74FCT | 20-SSOP (0.209", 5.30mm Width) | Tube | Obsolete | Identity Comparator | 8 | Active Low | A=B | 4.75V ~ 5.25V | 15mA, 48mA | 4.5ns @ 5V, 50pF | 10 µA | -40°C ~ 85°C | - | - | 20-SSOP | Surface Mount |
|
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SN74LS682DWRIC COMPARATOR MAG 8BIT 20SOIC |
4,447 | - |
|
Datasheet | 74LS | 20-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Magnitude Comparator | 8 | Active Low | A=B, A>B | 4.85V ~ 5.25V | 400µA, 24mA | 30ns @ 5V, 45pF | - | 0°C ~ 70°C | - | - | 20-SOIC | Surface Mount |
|
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SN74LS682DWRG4IC COMPARATOR MAG 8BIT 20SOIC |
2,902 | - |
|
Datasheet | 74LS | 20-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Magnitude Comparator | 8 | Active Low | A=B, A>B | 4.85V ~ 5.25V | 400µA, 24mA | 30ns @ 5V, 45pF | - | 0°C ~ 70°C | - | - | 20-SOIC | Surface Mount |
|
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74FCT521CTQG8IC COMPARATOR IDENTITY 8B 20QSOP |
4,172 | - |
|
Datasheet | 74FCT | 20-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Identity Comparator | 8 | Active Low | A=B | 4.75V ~ 5.25V | 15mA, 48mA | 4.5ns @ 5V, 50pF | 10 µA | -40°C ~ 85°C | - | - | 20-QSOP | Surface Mount |
|
SN74LS688NG4IC COMPARATOR IDENTITY 8B 20DIP |
3,154 | - |
|
Datasheet | 74LS | 20-DIP (0.300", 7.62mm) | Tube | Discontinued at Digi-Key | Identity Comparator | 8 | Active Low | A=B | 4.85V ~ 5.25V | 400µA, 24mA | 23ns @ 5V, 45pF | - | 0°C ~ 70°C | - | - | 20-PDIP | Through Hole |
|
74FCT521ATSOG8IC COMPARATOR IDENTITY 8B 20SOIC |
2,256 | - |
|
Datasheet | 74FCT | 20-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Identity Comparator | 8 | Active Low | A=B | 4.75V ~ 5.25V | 15mA, 48mA | 7.2ns @ 5V, 50pF | 10 µA | -40°C ~ 85°C | - | - | 20-SOIC | Surface Mount |
|
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74FCT521CTSOG8IC COMPARATOR IDENTITY 8B 20SOIC |
4,817 | - |
|
Datasheet | 74FCT | 20-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Identity Comparator | 8 | Active Low | A=B | 4.75V ~ 5.25V | 15mA, 48mA | 4.5ns @ 5V, 50pF | 10 µA | -40°C ~ 85°C | - | - | 20-SOIC | Surface Mount |
|
74FCT521ATQGIC COMPARATOR IDENTITY 8B 20QSOP |
4,316 | - |
|
Datasheet | 74FCT | 20-SSOP (0.154", 3.90mm Width) | Tube | Active | Identity Comparator | 8 | Active Low | A=B | 4.75V ~ 5.25V | 15mA, 48mA | 7.2ns @ 5V, 50pF | 10 µA | -40°C ~ 85°C | - | - | 20-QSOP | Surface Mount |
|
|
74FCT521CTQGIC COMPARATOR IDENTITY 8B 20QSOP |
2,130 | - |
|
Datasheet | 74FCT | 20-SSOP (0.154", 3.90mm Width) | Tube | Active | Identity Comparator | 8 | Active Low | A=B | 4.75V ~ 5.25V | 15mA, 48mA | 4.5ns @ 5V, 50pF | 10 µA | -40°C ~ 85°C | - | - | 20-QSOP | Surface Mount |
|
|
SN74LS688NE4IC COMPARATOR IDENTITY 8B 20DIP |
4,702 | - |
|
Datasheet | 74LS | 20-DIP (0.300", 7.62mm) | Tube | Active | Identity Comparator | 8 | Active Low | A=B | 4.85V ~ 5.25V | 400µA, 24mA | 23ns @ 5V, 45pF | 65 mA | 0°C ~ 70°C | - | - | 20-PDIP | Through Hole |
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CD74HC688MIC COMPARATOR IDENTITY 8B 20SOIC |
3,683 | - |
|
Datasheet | 74HC | 20-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Identity Comparator | 8 | Active Low | A=B | 2V ~ 6V | 5.2mA, 5.2mA | 29ns @ 6V, 50pF | 8 µA | -55°C ~ 125°C | - | - | 20-SOIC | Surface Mount |
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74FCT521CTSOGIC COMPARATOR IDENTITY 8B 20SOIC |
4,123 | - |
|
Datasheet | 74FCT | 20-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Identity Comparator | 8 | Active Low | A=B | 4.75V ~ 5.25V | 15mA, 48mA | 4.5ns @ 5V, 50pF | 10 µA | -40°C ~ 85°C | - | - | 20-SOIC | Surface Mount |
|
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SN74LS688DWRIC COMPARATOR IDENTITY 8B 20SOIC |
1,510 | - |
|
Datasheet | 74LS | 20-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Identity Comparator | 8 | Active Low | A=B | 4.85V ~ 5.25V | 400µA, 24mA | 23ns @ 5V, 45pF | - | 0°C ~ 70°C | - | - | 20-SOIC | Surface Mount |
|
SN74LS682NSRIC COMPARATOR MAG 8BIT 20SO |
2,179 | - |
|
Datasheet | 74LS | 20-SOIC (0.209", 5.30mm Width) | Tape & Reel (TR) | Active | Magnitude Comparator | 8 | Active Low | A=B, A>B | 4.85V ~ 5.25V | 400µA, 24mA | 30ns @ 5V, 45pF | - | 0°C ~ 70°C | - | - | 20-SO | Surface Mount |
|
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SN74LS688NSRIC COMPARATOR IDENTITY 8BIT 20SO |
1,368 | - |
|
Datasheet | 74LS | 20-SOIC (0.209", 5.30mm Width) | Tape & Reel (TR) | Active | Identity Comparator | 8 | Active Low | A=B | 4.85V ~ 5.25V | 400µA, 24mA | 23ns @ 5V, 45pF | - | 0°C ~ 70°C | - | - | 20-SO | Surface Mount |
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.
