| Image | Manufacturer | Part Number | Description |
|---|
 | Vishay | TCND5000 | Photointerrupter Reflective Photodiode 4-Pin SMD T/R |
 | Optek Technology (TT Electronics) | OPB732WZ | Photointerrupter Reflective Phototransistor 4-Pin |
 | Fairchild Semiconductor | QRD1113 | Photointerrupter Reflective Phototransistor 4-Pin Bulk |
 | Optek Technology (TT Electronics) | OPB704WZ | Photointerrupter Reflective Phototransistor 4-Pin |
 | Optek Technology (TT Electronics) | OPB740 | Photointerrupter Reflective Phototransistor 4-Pin |
 | Omron | EE-SF5 | Photointerrupter Reflective Phototransistor 4-Pin |
 | Omron | EE-SB5 | Photointerrupter Reflective Phototransistor 4-Pin |
 | Optek Technology (TT Electronics) | OPR5005 | Photointerrupter Reflective Phototransistor 4-Pin SMD |
 | Sharp Electronics | GP2S24BCJ00F | Photointerrupter Reflective Phototransistor 4-Pin PDIP |
 | Honeywell | HOA1180-003 | Photointerrupter Reflective Photodarlington 4-Pin Side Looker |
 | Honeywell | HOA1404-002 | Photointerrupter Reflective Phototransistor 4-Pin |
 | Vishay | CNY70 | Photointerrupter Reflective Phototransistor 4-Pin Tube |
| Optek Technology (TT Electronics) | OPB704 | Photointerrupter Reflective Phototransistor 4-Pin |
 | Honeywell | HOA0149-001 | Photointerrupter Reflective Phototransistor 4-Pin Side Looker |
 | Honeywell | HOA1397-002 | Photointerrupter Reflective Phototransistor 4-Pin Side Looker |
| Honeywell | HOA1397-032 | Photointerrupter Reflective Photodarlington 4-Pin Side Looker |
 | Optek Technology (TT Electronics) | OPB706A | Photointerrupter Reflective Phototransistor 4-Pin |
 | Honeywell | HOA0709-011 | Photointerrupter Reflective Photodarlington 4-Pin |
| Honeywell | HOA0708-001 | Photointerrupter Reflective Phototransistor 4-Pin |
| Honeywell | HOA0708-011 | Photointerrupter Reflective Phototransistor 4-Pin |
 | Honeywell | HOA2498-002 | Photointerrupter Reflective Phototransistor 4-Pin |
| Honeywell | HOA1180-002 | Photointerrupter Reflective Phototransistor 4-Pin Side Looker |
 | Honeywell | HOA1405-002 | Photointerrupter Reflective Phototransistor 4-Pin Side Looker |
 | Sharp Electronics | GP2S60B | Photointerrupter Reflective Phototransistor 4-Pin SMT |
 | Omron | EESY202 | Photointerrupter Reflective Photodarlington 4-Pin SMD |
