| PartNumber | HE3621A0540 | HE3621A0500 | HE3621A0550 |
| Description | Reed Relays HE3621A0540 | Reed Relays REED RELAY | Reed Relays HE3621A0550 RELAY |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | Reed Relays | Reed Relays | Reed Relays |
| RoHS | Y | Y | Y |
| Coil Voltage | 5 VDC | 5 VDC | 5 VDC |
| Relay Contact Form | 1 Form A (SPST-NO) | 1 Form A (SPST-NO) | 1 Form A (SPST-NO) |
| Maximum Switched Current | 500 mA | 500 mA | 500 mA |
| Switching Voltage | 200 VDC | 200 VDC | 200 VDC |
| Maximum Switched Power | 10 W | 10 W | 10 W |
| Coil Resistance | 500 Ohms | 500 Ohms | 500 Ohms |
| Termination Style | Through Hole | Through Hole | Through Hole |
| Series | HE3600 | HE3600 | HE3600 |
| Packaging | Bulk | Tube | Bulk |
| Contact Form | SPST (1 Form A) | SPST (1 Form A) | SPST (1 Form A) |
| Form Factor, or Case Style | SIP | SIP | SIP |
| Brand | Hamlin / Littelfuse | Hamlin / Littelfuse | Hamlin / Littelfuse |
| Product Type | Reed Relays | Reed Relays | Reed Relays |
| Factory Pack Quantity | 768 | 800 | 768 |
| Subcategory | Relays | Relays | Relays |
| Coil Suppression Diode | - | No | - |