| KA239 | Fairchild Semiconductor | Quad Comparator |
| KA239D | Fairchild Semiconductor | Quad Comparator |
| KA239DTF | Fairchild Semiconductor | Quad Comparator |
| KA239A | Fairchild Semiconductor | Quad Comparator |
| KA239AD | Fairchild Semiconductor | Quad Comparator |
| KA239ADTF | Fairchild Semiconductor | Quad Comparator |
| KA2901 | Fairchild Semiconductor | Quad Comparator |
| KA2901D | Fairchild Semiconductor | Quad Comparator |
| KA2901DMTF | Fairchild Semiconductor | Quad Comparator |
| KA2901DTF | Fairchild Semiconductor | Quad Comparator |
| KA3302 | Fairchild Semiconductor | Quad Comparator |
| KA3302D | Fairchild Semiconductor | Quad Comparator |
| KA339 | Fairchild Semiconductor | Quad Comparator |
| KA339D | Fairchild Semiconductor | Quad Comparator |
| KA339DTF | Fairchild Semiconductor | Quad Comparator |
| KA339A | Fairchild Semiconductor | Quad Comparator |
| KA339AD | Fairchild Semiconductor | Quad Comparator |
| KA339ADTF | Fairchild Semiconductor | Quad Comparator |
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