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| PartNumber | LH1521BACTR | LH1521B | LH1521BAC |
| Description | Solid State Relays - PCB Mount Dual Normally Closed Form 1B 350V | Solid State Relays - PCB Mount Dual Normally Closed Form 1B 350V | |
| Manufacturer | Vishay | - | - |
| Product Category | Solid State Relays - PCB Mount | - | - |
| RoHS | Y | - | - |
| Control Voltage Range | 1.15 VDC to 1.45 VDC | - | - |
| Mounting Style | SMD/SMT | - | - |
| Relay Contact Form | 2 Form B (DPST-NC) | - | - |
| Load Voltage Rating | 350 VDC | - | - |
| Load Current Rating | 400 mA | - | - |
| Input Current | 50 mA | - | - |
| Output Type | MOSFET | - | - |
| Package / Case | SMD DIP-8 | - | - |
| Length | 9.91 mm | - | - |
| Width | 6.81 mm | - | - |
| Height | 3.81 mm | - | - |
| Packaging | Reel | - | - |
| Contact Form | DPST (2 Form B) | - | - |
| Input Voltage | 1.45 V | - | - |
| Product | SSR - Solid State Relays | - | - |
| Termination Style | Gull Wing Lead | - | - |
| Type | Isolated | - | - |
| Brand | Vishay Semiconductors | - | - |
| Input to Output Isolation Method | Optocoupler | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Product Type | SSR - Solid State Relays | - | - |
| Factory Pack Quantity | 1000 | - | - |
| Subcategory | Relays | - | - |