SMD diode codes
The codes in our tables printed on switching, Zener, Schottky, TVS and ESD protection, rectifier and PIN diodes: 3,714 codes in all. Each row names the diodes with that code; the code's own page lists every part that carries it.
Reading a diode code
A diode in SOD-123, SOD-323 or SOT-23 carries a short code in place of its part number, and a band, where there is one, marks the cathode. A three-pin SOT-23 often holds two diodes, with a common pin or in series, so a three-pin part is not always a transistor. Makers reuse diode codes like any other, so read the code with the package.
Testing a diode with a multimeter
Use the diode range, with the part lifted or one leg off the pad, red probe on the anode. A silicon diode reads about 0.5 to 0.8 V forward and open in reverse; a Schottky about 0.15 to 0.45 V. A Zener reads like a plain diode on the meter, and its voltage shows only on a supply, through a resistor. A two-way TVS diode reads open both ways when good. The same reading both ways, near 0 V, is a short.
How to identify an SMD component, from the code to the meter
Diode codes and their parts
| Code | Printed on |
|---|---|
| 0 | AOZ8S411ULS-24, AOZ8S516UDS-20 |
| 03C | ESD3V3CA Packages: SOT-23 |
| 03H | VGSOT03 Packages: SOT-23 |
| 03W | PJSD03W, PJSD03W-AU Packages: SOD-323 |
| 04 | BZX84-A11 Packages: SOT-23 |
| 04C | ESDUNK4V8C1U |
| 04H | VGSOT04 Packages: SOT-23 |
| 04P | ESDH5V0FD1 |
| 05 | ESD5Z5V0 Packages: SOD-523 |
| 0524P | ESDTU5V0AG4B |
| 05C | ESD5V0CA, ESDBP5V0D3 Packages: SOD-323 · SOT-23 |
| 05H | VGSOT05 Packages: SOT-23 |
| 05W | PJSD05W, PJSD05W-AU Packages: SOD-323 |
| 06 | ESD5Z6V0 Packages: SOD-523 |
| 07 | ESDUNF7V0B1 |
| 08 | ESDUNH8V0B1 |
| 08H | VGSOT08 Packages: SOT-23 |
| 08W | PJSD08W, PJSD08W-AU Packages: SOD-323 |
| 0AS | BAS100AS, BAS100AS-AU Packages: SOD-123 |
| 0B | BZX384B75 Packages: SOD-323 |
| 0C | BZX384B33 Packages: SOD-323 |
| 0CS | BAS100CS, BAS100CS-AU Packages: SOD-323 |
| 0D | BZD27B3V6P Packages: SOD-123F |
| 0E | BZD27B9V1P Packages: SOD-123F |
| 0F | BZD27B24P Packages: SOD-123F |
| 0G | BZD27B62P Packages: SOD-123F |
| 0H | BZD27B160P Packages: SOD-123F |
| 0N | BZD27B3V6P-M Packages: SOD-123F |
| 0O | BZD27B9V1P-M Packages: SOD-123F |
| 0P | BZD27B24P-M Packages: SOD-123F |
| 0Q | BZD27B62P-M Packages: SOD-123F |
| 0R | BZD27B160P-M Packages: SOD-123F |
| 0U | MMBZ27CA Packages: SOT-23 |
| 1 | AOZ8S516UDS-28, AOZ8251BDI-03 |
| 10 | SML4740, VCUT10G1-SD0 Packages: SMA |
| 100 | SML4764 Packages: SMA |
| 100A | 1.5SMC100A, SML4764A Packages: SMA · SMC |
| 100C | 1.5SMC100CA Packages: SMC |
| 103A | SD103A |
| 103B | SD103B |
| 103C | SD103C |
| 10A | 1.5SMC10A, PLZ10A, SML4740A Packages: SMA · SMC |
| 10B | 1SMB3EZ10, 1SMB3EZ10-AU, PLZ10B |
| 10C | 1.5SMC10CA, PLZ10C Packages: SMC |
| 10D | PLZ10D |
| 10HA | ESDH10VP1A |
| 10VB | BZT52B10 Packages: SOD-123F |
| 10VZ | BZT52C10 Packages: SOD-123F |
| 11 | SML4741 Packages: SMA |
| 110A | 1.5SMC110A, 1SMA110Z, 1SMA110ZH Packages: SMA · SMC |
| 110ALH | SS110ALH |
| 110C | 1.5SMC110CA Packages: SMC |
| 110FSH | SS110FSH Packages: SOD-128 |
| 113 | VSKY2030G8 |
| 114 | VSKY2040G8 |
| 115 | SS0115TW Packages: SOT-363 |
| 115ALH | SS115ALH |
| 115FSH | SS115FSH Packages: SOD-128 |
| 11A | 1.5SMC11A, PLZ11A, SML4741A Packages: SMA · SMC |
| 11B | 1SMB3EZ11, 1SMB3EZ11-AU, PLZ11B |
| 11C | 1.5SMC11CA, PLZ11C Packages: SMC |
| 11D | RB411D Packages: SOT-23 |
| 11VB | BZT52B11 Packages: SOD-123F |
| 11VZ | BZT52C11 Packages: SOD-123F |
| 12 | CESD5V0J4, ESD5Z12, SML4742 Packages: SMA · SOD-523 · SOT-353 |
| 120A | 1.5SMC120A, 1SMA120Z, 1SMA120ZH Packages: SMA · SMC |
| 120ALH | SS120ALH |
| 120C | 1.5SMC120CA Packages: SMC |
| 120FSH | SS120FSH Packages: SOD-128 |
| 12A | 1.5SMC12A, PJEC24MTA, PJEC24MTA-AU, PLZ12A and 2 more Packages: SOT-23 · SMA · SMC · SOD-323 |
| 12AS | ESDE12VSDF1 Packages: SOD-123F |
| 12B | 1SMB3EZ12, 1SMB3EZ12-AU, PLZ12B |
| 12C | 1.5SMC12CA, PLZ12C Packages: SMC |
| 12H | ESDH12VP1, VGSOT12 Packages: SOT-23 |
| 12L | CESD12VCP Packages: SOT-23 |
| 12M | CESD12VAP Packages: SOT-23 |
| 12U | ESDQ12VFD1U |
| 12VB | BZT52B12 Packages: SOD-123F |
| 12VK4 | ESD12VK4 Packages: SOT-23-6 |
| 12VZ | BZT52C12 Packages: SOD-123F |
| 12W | PJEC12VM1TA, PJEC12VM1TA-AU, PJSD12W, PJSD12W-AU Packages: SOD-323 · SOT-23 |
| 13 | SML4743 Packages: SMA |
| 130A | 1.5SMC130A, 1SMA130Z, 1SMA130ZH Packages: SMA · SMC |
| 130C | 1.5SMC130CA Packages: SMC |
| 13A | 1.5SMC13A, PLZ13A, SML4743A Packages: SMA · SMC |
| 13B | 1SMB3EZ13, 1SMB3EZ13-AU, PLZ13B |
| 13C | 1.5SMC13CA, PLZ13C Packages: SMC |
| 13VB | BZT52B13 Packages: SOD-123F |
| 13VZ | BZT52C13 Packages: SOD-123F |
| 14 | 1SS400, 1SS400-AU, BAS125-04W, SS0140Q Packages: SOD-523 |
| 140 | RB501V-40TW Packages: SOT-363 |
| 14ALH | SS14ALH |
| 14B | 1SMB3EZ14, 1SMB3EZ14-AU |
| 14FSH | SS14FSH Packages: SOD-128 |
| 15 | BAS125-05W, ESD5Z15, ESDUNF15VB1, SML4744 and 1 more Packages: SMA · SOD-523 |
| 150A | 1.5SMC150A, 1SMA150Z, 1SMA150ZH Packages: SMA · SMC |
| 150C | 1.5SMC150CA Packages: SMC |
| 15A | 1.5SMC15A, PLZ15A, SML4744A Packages: SMA · SMC |
| 15B | 1SMB3EZ15, 1SMB3EZ15-AU, PLZ15B |
| 15C | 1.5SMC15CA, PLZ15C Packages: SMC |
| 15D | ESDUEL15VB1 |
| 15DLW | S15DLW, S15DLWH Packages: SOD-123W |
| 15GLW | S15GLW, S15GLWH Packages: SOD-123W |
| 15H | ESDH15VP1, VGSOT15 Packages: SOT-23 |
| 15JLW | S15JLW, S15JLWH Packages: SOD-123W |
| 15KLW | S15KLW, S15KLWH Packages: SOD-123W |
| 15MLW | S15MLW, S15MLWH Packages: SOD-123W |
| 15P | ESDQ15VFD1 |
| 15VB | BZT52B15 Packages: SOD-123F |
| 15VZ | BZT52C15 Packages: SOD-123F |
| 15W | PJSD15W, PJSD15W-AU Packages: SOD-323 |
| 16 | BAS16VY, BAS125-06W, SML4745 Packages: SMA · SOT-363 |
| 1605 | PE1605M4AQ |
| 160A | 1.5SMC160A, 1SMA160Z, 1SMA160ZH Packages: SMA · SMC |
| 160C | 1.5SMC160CA Packages: SMC |
| 161 | VLIN1616-02G Packages: SOD-323 |
| 165 | BAT165 |
| 16A | 1.5SMC16A, PLZ16A, SML4745A, VCAN16A2-03G and 1 more Packages: SMA · SMC · SOT-23 · SOT-323 |
| 16ALH | SS16ALH |
| 16B | 1SMB3EZ16, 1SMB3EZ16-AU, PLZ16B |
| 16C | 1.5SMC16CA, PLZ16C Packages: SMC |
| 16FSH | SS16FSH Packages: SOD-128 |
| 16T | BAS16TW, BAS16TW-AU Packages: SOT-363 |
| 16VB | BZT52B16 Packages: SOD-123F |
| 16VZ | BZT52C16 Packages: SOD-123F |
| 17 | BAS125-07W |
| 170A | 1.5SMC170A Packages: SMC |
| 170C | 1.5SMC170CA Packages: SMC |
| 17B | 1SMB3EZ17, 1SMB3EZ17-AU |
| 17C | BZT52-B17, BZT52-B17-AU, BZT52-B17S, BZT52-B17S-AU and 11 more Packages: SOD-123 · SOD-323 · SOT-23 · SOT-323 +1 |
| 17P | ESDTE18VP1 |
| 18 | ESD5Z18, ESD9BL18P, SML4746 Packages: SMA · SOD-523 · SOD-882 |
| 180A | 1.5SMC180A, 1SMA180Z, 1SMA180ZH Packages: SMA · SMC |
| 180C | 1.5SMC180CA Packages: SMC |
| 18A | 1.5SMC18A, PLZ18A, SML4746A, VCAN18A2-03G and 1 more Packages: SMA · SMC · SOT-23 · SOT-323 |
| 18B | 1SMB3EZ18, 1SMB3EZ18-AU, PLZ18B |
| 18C | 1.5SMC18CA, ESDBW18VD3, PLZ18C Packages: SMC · SOD-323 |
| 18K | ESDBL18VA1 |
| 18VB | BZT52B18 Packages: SOD-123F |
| 18VZ | BZT52C18 Packages: SOD-123F |
| 19B | 1SMB3EZ19, 1SMB3EZ19-AU, SMAZ5919B, SMBZ5919B and 1 more Packages: SMA · SMB |
| 1A | GMF05C-HSF, PJSOT03, PS2405-D63, SD101AWS Packages: SOD-323 · SOT-23 · SOT-883 |
| 1AE | SMB8J5.0CA, SMB10J5.0A Packages: SMB |
| 1AG | SMB8J6.0CA, SMB10J6.0A Packages: SMB |
| 1AK | SMB8J6.5CA, SMB10J6.5A Packages: SMB |
| 1AL | S1AL, S1ALH |
| 1AM | SMB8J7.0CA, SMB10J7.0A Packages: SMB |
| 1AP | SMB8J7.5CA, SMB10J7.5A Packages: SMB |
| 1AR | SMB8J8.0CA, SMB10J8.0A Packages: SMB |
| 1AT | SMB8J8.5CA, SMB10J8.5A Packages: SMB |
| 1AV | SMB8J9.0CA, SMB10J9.0A Packages: SMB |
| 1AX | SMB8J10CA, SMB10J10A Packages: SMB |
| 1AZ | SMB8J11CA, SMB10J11A Packages: SMB |
| 1B | PS2403-D63, SD101BWS Packages: SOD-323 |
| 1BE | SMB8J12CA, SMB10J12A Packages: SMB |
| 1BG | SMB8J13CA, SMB10J13A Packages: SMB |
| 1BK | SMB8J14CA, SMB10J14A Packages: SMB |
| 1BL | S1BL, S1BLH |
| 1BM | SMB8J15CA, SMB10J15A Packages: SMB |
| 1BP | SMB8J16CA, SMB10J16A Packages: SMB |
| 1BR | SMB8J17CA, SMB10J17A Packages: SMB |
| 1BT | SMB8J18CA, SMB10J18A Packages: SMB |
| 1BV | SMB8J20CA, SMB10J20A Packages: SMB |
| 1BX | SMB8J22CA, SMB10J22A Packages: SMB |
| 1BZ | SMB8J24CA, SMB10J24A Packages: SMB |
| 1C | ESD0521Z, MM3Z2V4, SD101CWS Packages: SOD-323 |
| 1CE | SMB8J26CA, SMB10J26A Packages: SMB |
| 1CG | SMB8J28CA, SMB10J28A Packages: SMB |
| 1CK | SMB8J30CA, SMB10J30A Packages: SMB |
| 1CM | SMB8J33CA, SMB10J33A Packages: SMB |
| 1CP | SMB8J36CA, SMB10J36A Packages: SMB |
| 1CR | SMB8J40CA, SMB10J40A Packages: SMB |
| 1D | BZD27B3V9P, MM3Z2V7 Packages: SOD-123F · SOD-323 |
| 1D5 | PE21SD05C4A6 Packages: SOT-23 |
| 1DL | S1DL, S1DLH |
| 1DLS | S1DLS, S1DLSH |
| 1DLW | S1DLW, S1DLWH Packages: SOD-123W |
| 1E | BZD27B10P, MM3Z3V0 Packages: SOD-123F · SOD-323 |
| 1F | BZD27B27P, MM3Z3V3 Packages: SOD-123F · SOD-323 |
| 1G | BZD27B68P Packages: SOD-123F |
| 1GH | TPD2E2U06DCK Packages: SOT-323 |
| 1GL | S1GL, S1GLH |
| 1GLS | S1GLS, S1GLSH |
| 1GLW | S1GLW, S1GLWH Packages: SOD-123W |
| 1H | BZD27B180P, MM3Z3V6, PS2705-D63 Packages: SOD-123F · SOD-323 |
| 1J | MM3Z3V9, PS150M-D62 Packages: SOD-323 · SOD-882 |
| 1JL | S1JL, S1JLH |
| 1JLS | S1JLS, S1JLSH |
| 1JLW | S1JLW, S1JLWH Packages: SOD-123W |
| 1K | MM3Z4V3 Packages: SOD-323 |
| 1KF | TPD1E10B06DYA |
| 1KL | S1KL, S1KLH |
| 1KLS | S1KLS, S1KLSH |
| 1KLW | S1KLW, S1KLWH Packages: SOD-123W |
| 1KS | TPD1E05U06DYA |
| 1L8 | ESD321DYA |
| 1M | MM3Z4V7 Packages: SOD-323 |
| 1ML | S1ML, S1MLH |
| 1MLS | S1MLS, S1MLSH |
| 1MLW | S1MLW, S1MLWH Packages: SOD-123W |
| 1N | BZD27B3V9P-M, MM3Z5V1, PMEG4002EJ Packages: SOD-323 · SOD-123F |
| 1O | BZD27B10P-M Packages: SOD-123F |
| 1P | BZD27B27P-M, MM3Z5V6, PMEG6002EJ Packages: SOD-323 · SOD-123F |
| 1Q | BZD27B68P-M, PZS1111BES Packages: SOD-123F · SOD-523 |
| 1R | BZD27B180P-M, MM3Z6V2 Packages: SOD-123F · SOD-323 |
| 1U | MMBZ5V6CA Packages: SOT-23 |
| 1X | MM3Z6V8 Packages: SOD-323 |
| 1Y | MM3Z7V5 Packages: SOD-323 |
| 1Z | MM3Z8V2 Packages: SOD-323 |
| 1Z10B | PZ1AFC10B |
| 1Z11B | PZ1AFC11B |
| 1Z12B | PZ1AFC12B |
| 1Z13B | PZ1AFC13B |
| 1Z14B | PZ1AFC14B |
| 1Z15B | PZ1AFC15B |
| 1Z16B | PZ1AFC16B |
| 1Z17B | PZ1AFC17B |
| 1Z18B | PZ1AFC18B |
| 1Z19B | PZ1AFC19B |
| 1Z20B | PZ1AFC20B |
| 1Z22B | PZ1AFC22B |
| 1Z24B | PZ1AFC24B |
| 1Z25B | PZ1AFC25B |
| 1Z27B | PZ1AFC27B |
| 1Z28B | PZ1AFC28B |
| 1Z2V5B | PZ1AFC2V5B |
| 1Z30B | PZ1AFC30B |
| 1Z33B | PZ1AFC33B |
| 1Z36B | PZ1AFC36B |
| 1Z39B | PZ1AFC39B |
| 1Z3V6B | PZ1AFC3V6B |
| 1Z3V9B | PZ1AFC3V9B |
| 1Z43B | PZ1AFC43B |
| 1Z47B | PZ1AFC47B |
| 1Z4V3B | PZ1AFC4V3B |
| 1Z4V7B | PZ1AFC4V7B |
| 1Z51B | PZ1AFC51B |
| 1Z56B | PZ1AFC56B |
| 1Z5V1B | PZ1AFC5V1B |
| 1Z5V6B | PZ1AFC5V6B |
| 1Z62B | PZ1AFC62B |
| 1Z68B | PZ1AFC68B |
| 1Z6V0B | PZ1AFC6V0B |
| 1Z6V2B | PZ1AFC6V2B |
| 1Z6V8B | PZ1AFC6V8B |
| 1Z75B | PZ1AFC75B |
| 1Z7V5B | PZ1AFC7V5B |
| 1Z8V2B | PZ1AFC8V2B |
| 1Z8V7B | PZ1AFC8V7B |
| 1Z9V1B | PZ1AFC9V1B |