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10pcs 5 inche 1 digit led display 7 seg segment Common cathode 阴 blue    US $195.99

500 PCS 1 Digit 056 RED 7 SEGMENT LED DISPLAY COMMON CATHODE 10 Pins FREE ReM    US $189.99

500 PCS 1 Digit 056 GREEN 7 SEGMENT LED DISPLAY COMMON CATHODE 10 Pin FREE RM    US $189.99

10pcs 4 inche 1 digit led display 7 seg segment Common cathode 阴 blue    US $145.99

10pcs 3 inche 1 digit led display 7 seg segment Common cathode 阴 blue    US $115.99

160 087 Segment RED LED Display Common Cathode26A    US $112.00

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how to differentiate seven segment displays?

Can anyone tell me how to test whether a certain seven segment display is a common cathode or a common anode display?
Thanks M.L for the information:) sorry i cant rate ur answer cause im still level 1 xD

Unfortunately, externally, they look identical.

The best way to tell the difference is to look at the number on the side or back of the display.

Common Cathodes will usually start with "CC" or "SC".
Common Anodes will usually start with "CA" or "SA".

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Best Match Time: ending soonest Time: newly listed Price: lowest first Price: highest first Price + Shipping: lowest first Price + Shipping: highest first

10pcs 5 inche 1 digit led display 7 seg segment Common cathode 阴 blue    US $195.99

500 PCS 1 Digit 056 RED 7 SEGMENT LED DISPLAY COMMON CATHODE 10 Pins FREE ReM    US $189.99

500 PCS 1 Digit 056 GREEN 7 SEGMENT LED DISPLAY COMMON CATHODE 10 Pin FREE RM    US $189.99

10pcs 4 inche 1 digit led display 7 seg segment Common cathode 阴 blue    US $145.99

10pcs 3 inche 1 digit led display 7 seg segment Common cathode 阴 blue    US $115.99

160 087 Segment RED LED Display Common Cathode26A    US $112.00

PKG100 1 7 Segment RED LED Display Common Cathode25A    US $99.49

10pcs 5 inche 1 digit led display 7 seg segment Common cathode 阴 RED    US $89.89

Velleman 79 Led Display common Cathode    US $81.99

200Pcs Red LED Display 1 Digital 7Segment 039 Common Cathode    US $69.99

1inch 7segment Blue LED display common cathode 60x CPS10016ABB 3 V    US $63.12

PKG80 087 Segment RED LED Display Common Cathode26A    US $56.00

24x Dot Matrix 8x8 37mm Red LED Display Common cathode    US $55.99

90Pcs Blue LED Display 1 Digital 7Segment 039 Common Cathode    US $54.99

50 pcs 8x8 Dot Matrix 3mm Red LED Display Common cathode    US $53.99

5 × 50 7 Segment Red LED Display Common Cathode LD05    US $51.49

50 LED Display Common Cathode 036 225x14 Red 3 digit    US $46.49

30 x LED Dot Matrix Display 3mm 8x8 Red Common Cathode    US $45.99

10pcs 4 inche 1 digit led display 7 seg segment Common cathode 阴 RED    US $45.89

24x Dot Matrix 19mm 8x8 Red LED Display Common cathode    US $42.99

NEW 7 SEGMENT LED DISPLAY 4 Digits Common Cathode    US $40.00

100Pcs Red LED Display 1 Digital 7Segment 056 Common Cathode    US $39.99

12pcs 3inch 7 segment Red LED display common cathode    US $39.37

30pcs 056 inch Red LED Display 4 Digit Common Cathode    US $33.99

30pcs 8x8 Dot Matrix 3mm Red LED Display Common cathode    US $33.99

30 LED Display Common Cathode 056 504x19 4 Digit 12P    US $32.19

10pcs 05 inche 6 digit led display 7 seg seg Common anode cathode yellow green    US $31.80

10pcs 05 inche 6 digit led display 7 seg seg Common anode cathode red    US $31.80

30 x LED Display Common Cathode 036 30x14 Red 4 digit    US $30.68

1inch 7segment Blue LED display common cathode 25pcs 10016ABB 3V    US $29.59

50Pcs Blue 039 LED Display 1 Digital 7 Segment Common Cathode    US $28.99

10pcs 056 inche 4 digit led display blue 7 seg segment Common cathode 阴 clock    US $26.99

20 x LED Display Dot Matrix Common Cathode Red 3mm 8x8    US $26.31

8pcs 3inch 7 segment Red LED display common cathode    US $26.24

1inch 7segment Blue LED display common cathode 20pcs CPS1006ABB 3 V    US $25.99

4 inch 7 segment red LED display common cathode 4pcs    US $25.96

08 7 segment Blue LED display common cathode 25pcs    US $25.34

10pcs 036 inche 4 digit led display 7 seg segment Common cathode 阴 blue    US $24.99

10pcs 056 inche 4 digit led display 7 seg segment Common cathode 阴 blue    US $24.99

10pcs 23 inche 1 digit led display 7 seg segment Common cathode 阴 RED    US $24.89

10x Dot Matrix 8x8 37mm Red LED Display Common cathode    US $24.59

50 x LED Display Common Cathode 039 13x10mm Red 10pin    US $24.17

20 LED Display Common Cathode 036 225x14 Red 3 digit    US $24.17

50pcs 039 inch Red LED display common Cathode NEW    US $23.99

50 pcs LED Display Common Cathode Red 1 Digital 056    US $23.59

50 pcs LED Display Common Cathode Green 1 Digital 056    US $23.59

12x Dot Matrix 19mm 8x8 Red LED Display Common cathode    US $22.99

50 PCS 1 Digit 056 RED 7 SEGMENT LED DISPLAY COMMON CATHODE 10 Pins new    US $22.99

50 x LED Display Common Cathode 039 Green 10pin 13x10    US $22.72

10pcs 18 inche 1 digit led display 7 seg segment Common cathode 阴 RED    US $22.59

4pcs 3inch 7 segment BLUE LED display common cathode    US $22.52

50pcs 036 inch Red LED display common Cathode NEW    US $21.99

10pcs 054 inche 2 digit led display 16 seg segment Common cathode 阴 RED    US $21.99

20pcs 056 inch Red LED Display 3 Digit Common Cathode NEW    US $20.99

50Pcs Red 056 LED Display 1 Digital 7 Segment Common Cathode    US $20.99

50Pcs Red 039 LED Display 1 Digital 7 Segment Common Cathode    US $20.99

20pcs 05 inch Red LED Display 2 Digit Common Cathode    US $19.99

20pcs 04 inch Red LED Display 2 Digit Common Cathode    US $19.99

PKG20 1 7 Segment RED LED Display Common Cathode25A    US $19.99

10pcs 08 inche 1 digit led display 7 seg segment Common cathode 阴 blue    US $19.99

10pcs 036 inche 2 digit led display 7 seg segment Common cathode 阴 blue    US $19.99

50pcs 05 LG5011AH Red LED Display Common Cathode    US $19.99

50pcs05X07 Segment RED LED Display Common Cathode2330    US $19.99

10pcs 036 inche 5 digit led display 7 seg segment Common cathode 阴 red    US $19.80

08 7 segment Green LED display common cathode 18pcs    US $19.26

10pcs 056 inche 5 digit led display 7 seg segment Common cathode 阴 red    US $18.80

30 LED Display Common Cathode 036 225x14 3 Digit G    US $18.59

50 LED Display Common Cathode 036 15x14 Green 2 digit    US $18.59

80 LED Display Common Cathode 056 19x126mm Red 10pin    US $18.39

80 LED Display Common Cathode 03 127x77mm Red 10pin    US $18.22

10× 23 7 Segment Red LED Display Common Cathode LD03    US $18.00

PKG20 087 Segment RED LED Display Common Cathode26A ay    US $17.99

10pcs 1 inche 1 digit led display 16 seg segment Common cathode 阴 RED    US $17.99

30 LED Display Common Cathode 03 127x77mm Red 10pin    US $17.47

50 pcs LED Display Common Cathode 039 Red 10pin 13x10mm 1 Digital    US $16.99

20x 05 7 Segm blue LED Display Common Cathode LD60]    US $16.99

20× 7 Segment Red LED Display 10 Common Cathode LD02    US $16.49

12pcs 8x8 Dot Matrix 3mm Red LED Display Common cathode    US $15.99

10pcs 056 inche 1 digit led display 7 seg segment Common cathode 阴 blue    US $15.99

10pcs 05 inche 1 digit led display 7 seg segment Common cathode 阴 blue    US $15.99

10pcs 08 inche 1 digit led display 16 seg segment Common cathode 阴 RED    US $15.99

10pcs 05 inche 1 digit led display 16 seg segment Common cathode 阴 RED    US $15.99

1inch 7segment Blue LED display common cathode 12pcs 10016ABB 3V    US $15.78

10pcs 04 inch Red LED Display 2 Digit Common Cathode    US $13.99

10pcs 025 inche 3 digit led display 7 seg segment Common cathode 阴 red    US $13.99

18 036 inche led 3 digital red display common cathode    US $13.99

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