| 427121 | D1213A-04MR-13 | 4 CHANNEL LOW CAPACITANCE TVS DIODE ARRAY | Diodes |
| 427122 | D1213A-04S | 4 CHANNEL LOW CAPACITANCE TVS DIODE ARRAY | Diodes |
| 427123 | D1213A-04S-7 | 4 CHANNEL LOW CAPACITANCE TVS DIODE ARRAY | Diodes |
| 427124 | D1213A-04SO | 4 CHANNEL LOW CAPACITANCE TVS DIODE ARRAY | Diodes |
| 427125 | D1213A-04SO-7 | 4 CHANNEL LOW CAPACITANCE TVS DIODE ARRAY | Diodes |
| 427126 | D1213A-04TS | 4 CHANNEL LOW CAPACITANCE TVS DIODE ARRAY | Diodes |
| 427127 | D1213A-04TS-7 | 4 CHANNEL LOW CAPACITANCE TVS DIODE ARRAY | Diodes |
| 427128 | D1213A-04V | 4 CHANNEL LOW CAPACITANCE TVS DIODE ARRAY | Diodes |
| 427129 | D1213UK | METAL GATE RF SILICON FET | SemeLAB |
| 427130 | D1217 | METAL GATE RF SILICON FET | SemeLAB |
| 427131 | D1217U | CASSETTE DETAILS | etc |
| 427132 | D1217UK | METAL GATE RF SILICON FET | SemeLAB |
| 427133 | D1218UK | METAL GATE RF SILICON FET | SemeLAB |
| 427134 | D121D | Monoflop, possibly equivalent SN74121N | RFT |
| 427135 | D1221UK | GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 10W - 12.5V - 175MHz SINGLE ENDED | SemeLAB |
| 427136 | D1222UK | GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 60W - 12.5V - 175MHz PUSH-PULL | SemeLAB |
| 427137 | D122D | 2-channel read amplifier, possibly equivalent SN7522N | RFT |
| 427138 | D123 | SPST 6-Channel JFET Switch Driver | Intersil |
| 427139 | D1231UK | METAL GATE RF SILICON FET | SemeLAB |
|
| 427140 | D123AK | SPST 6-Channel JFET Switch Driver, Military 14-pin CERDIP | Intersil |
| 427141 | D123AL | SPST 6-Channel JFET Switch Driver, Military 14-pin Flat Package | Intersil |
| 427142 | D123AP | SPST 6-Channel JFET Switch Driver, Military 14-pin Hermetic DIP | Intersil |
| 427143 | D123BK | SPST 6-Channel JFET Switch Driver, Industrial 14-pin CERDIP | Intersil |
| 427144 | D123BL | SPST 6-Channel JFET Switch Driver, Industrial 14-pin Flat Package | Intersil |
| 427145 | D123BP | SPST 6-Channel JFET Switch Driver, Industrial Hermetic DIP | Intersil |
| 427146 | D123D | 2-channel read amplifier, possibly equivalent SN7523N | RFT |
| 427147 | D125 | SPST 6-Channel JFET Switch Driver | Intersil |
| 427148 | D125AK | SPST 6-Channel JFET Switch Driver, Military 14-pin CERDIP | Intersil |
| 427149 | D125AL | SPST 6-Channel JFET Switch Driver, Military 14-pin Flat Package | Intersil |
| 427150 | D125AP | SPST 6-Channel JFET Switch Driver, Military 14-pin Hermetic DIP | Intersil |
| 427151 | D125BK | SPST 6-Channel JFET Switch Driver, Industrial 14-pin CERDIP | Intersil |
| 427152 | D125BL | SPST 6-Channel JFET Switch Driver, Industrial 14-pin Flat Package | Intersil |
| 427153 | D125BP | SPST 6-Channel JFET Switch Driver, Industrial Hermetic DIP | Intersil |
| 427154 | D1260 | METAL GATE RF SILICON FET | SemeLAB |
| 427155 | D1260UK | METAL GATE RF SILICON FET | SemeLAB |
| 427156 | D1267 | CCD Vertical Clock Driver | SONY |
| 427157 | D126A | Power Rectifier Diodes | Eupec |
| 427158 | D126D | 4 NAND gates with 2 inputs each, collector open, 15V output reverse voltage, possibly equivalent SN7426N | RFT |
| 427159 | D129 | 4-Channel Decoded JFET Switch Driver | Intersil |
| 427160 | D12V0H1U2LP | 1 CHANNEL UNIDIRECTIONAL TVS | Diodes |
