The difference between AQH3213 and AQH3223 from Panasonic Electric Works is that the AQH3213 is a zero cross relay, which means it activates at the zero crossing point of the sine wave. AQH3223 is a random relay which means it activates as soon as the control voltage is applied. For more information on standard versus zero cross relays please see Zero-cross or random relay : what are the differences ? - celduc® relais (celduc-relais.com)
As seen below this applies to Panasonic Electric Works’ entire series of AQ-H relays.
Please see AQ-H Relays (panasonic.com) for more information on the AQ-H series of relays.
AQ-H Relays Carried by Digi-Key
| Digi-Key Part Numbers | Manufacturer Part Numbers |
|---|---|
| 255-5998-2-ND,255-5998-1-ND,255-5998-6-ND | AQH2213AX |
| 255-6000-2-ND,255-6000-1-ND,255-6000-6-ND | AQH2223AZ |
| 255-5991-ND | AQH0223 |
| 255-5987-ND | AQH0213 |
| 255-5992-ND | AQH0223A |
| 255-3922-2-ND,255-3922-1-ND,255-3922-6-ND | AQH2223AX |
| 255-2660-ND | AQH3213 |
| 255-5995-2-ND,255-5995-1-ND,255-5995-6-ND | AQH1213AZ |
| 255-6002-2-ND,255-6002-1-ND,255-6002-6-ND | AQH3213AZ |
| 255-6001-2-ND,255-6001-1-ND,255-6001-6-ND | AQH3213AX |
| 255-5996-2-ND,255-5996-1-ND,255-5996-6-ND | AQH1223AX |
| 255-1526-5-ND | AQH1213 |
| 255-1527-5-ND | AQH1213A |
| 255-1532-5-ND | AQH2223 |
| 255-1531-5-ND | AQH2213A |
| 255-2663-ND | AQH3223A |
| 255-2661-ND | AQH3213A |
| 255-AQH0223AXTR-ND,255-AQH0223AXCT-ND | AQH0223AX |
| 255-AQH0223AZTR-ND,255-AQH0223AZCT-ND | AQH0223AZ |
| 255-5990-2-ND,255-5990-1-ND,255-5990-6-ND | AQH0213AZ |
| 255-5997-2-ND,255-5997-1-ND,255-5997-6-ND | AQH1223AZ |
| 255-5999-2-ND,255-5999-1-ND,255-5999-6-ND | AQH2213AZ |
| 255-6003-2-ND,255-6003-1-ND,255-6003-6-ND | AQH3223AX |
| 255-6004-2-ND,255-6004-1-ND,255-6004-6-ND | AQH3223AZ |
| 255-5988-ND | AQH0213A |
| 255-1528-5-ND | AQH1223 |
| 255-1529-5-ND | AQH1223A |
| 255-1533-5-ND | AQH2223A |
| 255-1530-5-ND | AQH2213 |
| 255-2662-ND | AQH3223 |
| 255-AQH0213AXTR-ND,255-AQH0213AXCT-ND | AQH0213AX |
| 255-1527-2-ND | AQH1213AX |