| 668121 | HEF4754VT | 18-element bar graph LCD driver | Philips |
| 668122 | HEF4755 | Transceiver for serial data communication | Philips |
| 668123 | HEF4755V | Transceiver for serial data communication | Philips |
| 668124 | HEF4755VD | Transceiver for serial data communication | Philips |
| 668125 | HEF4755VF | Transceiver for serial data communication | Philips |
| 668126 | HEF4755VN | Transceiver for serial data communication | Philips |
| 668127 | HEF4755VP | Transceiver for serial data communication | Philips |
| 668128 | HEF4755VT | Transceiver for serial data communication | Philips |
| 668129 | HEF4794B | 8-stage shift-and-store register LED driver | Philips |
| 668130 | HEF4794BP | 8-stage shift-and-store register LED driver | NXP Semiconductors |
| 668131 | HEF4794BP | 8-stage shift-and-store register LED driver | Philips |
| 668132 | HEF4794BT | 8-stage shift-and-store register LED driver | Nexperia |
| 668133 | HEF4794BT | 8-stage shift-and-store register LED driver | NXP Semiconductors |
| 668134 | HEF4794BT | 8-stage shift-and-store register LED driver | Philips |
| 668135 | HEF4794BT-Q100 | 8-stage shift-and-store register LED driver | Nexperia |
| 668136 | HEF4794BT-Q100 | 8-stage shift-and-store register LED driver | NXP Semiconductors |
| 668137 | HEF4894B | 12-stage shift-and-store register LED driver | Philips |
| 668138 | HEF4894BP | 12-stage shift-and-store register LED driver | Nexperia |
| 668139 | HEF4894BP | 12-stage shift-and-store register LED driver | NXP Semiconductors |
|
| 668140 | HEF4894BP | 12-stage shift-and-store register LED driver | Philips |
| 668141 | HEF4894BT | 12-stage shift-and-store register LED driver | Nexperia |
| 668142 | HEF4894BT | 12-stage shift-and-store register LED driver | NXP Semiconductors |
| 668143 | HEF4894BT | 12-stage shift-and-store register LED driver | Philips |
| 668144 | HEF4894BT-Q100 | 12-stage shift-and-store register LED driver | Nexperia |
| 668145 | HEF4894BT-Q100 | 12-stage shift-and-store register LED driver | NXP Semiconductors |
| 668146 | HEF4894BTT | 12-stage shift-and-store register LED driver | Nexperia |
| 668147 | HEF4894BTT | 12-stage shift-and-store register LED driver | NXP Semiconductors |
| 668148 | HEF4894BTT-Q100 | 12-stage shift-and-store register LED driver | Nexperia |
| 668149 | HEF4894BTT-Q100 | 12-stage shift-and-store register LED driver | NXP Semiconductors |
| 668150 | HEF4938B | Dual precision monostable multivibrator | Philips |
| 668151 | HEF4938BP | Dual precision monostable multivibrator | Philips |
| 668152 | HEF4938BT | Dual precision monostable multivibrator | Philips |
| 668153 | HEMT-3300 | HEMT-3300 · T-1 3/4 670 nm High Radiant Intensity Emitter | Agilent (Hewlett-Packard) |
| 668154 | HEMT-3301 | HEMT-3301 · 940 nm High Radiant Emitter | Agilent (Hewlett-Packard) |
| 668155 | HER0801G | Rectifier: High Efficient | Taiwan Semiconductor |
| 668156 | HER0802G | Rectifier: High Efficient | Taiwan Semiconductor |
| 668157 | HER0803G | Rectifier: High Efficient | Taiwan Semiconductor |
| 668158 | HER0804G | Rectifier: High Efficient | Taiwan Semiconductor |
| 668159 | HER0805G | Rectifier: High Efficient | Taiwan Semiconductor |
| 668160 | HER0806G | Rectifier: High Efficient | Taiwan Semiconductor |
