SI8661BC-B-IS1R vs SI8642BB-B-IU Comparison
Detailed side-by-side comparison of SI8661BC-B-IS1R by Skyworks Solutions and SI8642BB-B-IU by Skyworks Solutions. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Skyworks Solutions
SI8661BC-B-IS1R - 6-Ch 3.75 kV 150 Mbps Digital Isolator | Skyworks
SI8661BC-B-IS1R ✓ ActiveSkyworks Solutions
SI8642BB-B-IU - 4-Ch 2.5kV Digital Isolator, 150Mbps | Skyworks
SI8642BB-B-IU ✓ ActiveSpecification Comparison
| Parameter | SI8661BC-B-IS1R | SI8642BB-B-IU |
|---|---|---|
| Brand | Skyworks Solutions | Skyworks Solutions |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.55 | $1.85 |
| Isolation Type | Capacitive Coupling Digital Isolator | — |
| Number of Channels | 6 | 4 |
| Channel Direction | 6 forward (same direction) - BC grade | — |
| Isolation Voltage (RMS) | 3750 Vrms | — |
| Surge Voltage | 5 kV peak per IEC 60747-17 | — |
| Data Rate | 150 Mbps (NRZ) | 150 Mbps |
| Common-Mode Transient Immunity (CMTI) | 35 kV/us minimum, 50 kV/us typical | 35 kV/µs |
| Propagation Delay | [DATA_NEEDED: typical propagation delay] | 8 ns typical, <10 ns max |
| Channel-to-Channel Skew | [DATA_NEEDED: typical channel-to-channel skew] | — |
| Supply Voltage (VDD1, VDD2) | 2.5 V to 5.5 V | — |
| Quiescent Current | 1.5 mA per channel at 100 kHz (per channel) | — |
| Operating Temperature | -40C to +125C | -40 °C to +85 °C |
| Package | 16-SOIC wide-body (0.154 inch / 3.90 mm) | 16-QSOP (0.154 inch / 3.90 mm width) |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | [DATA_NEEDED: MSL rating] | 1 |
| AEC-Q100 Qualification | Qualified (BC grade is automotive) | — |
| Safety Certifications | UL, VDE, CSA - IEC 60747-17 / IEC 60747-5-5 reinforced insulation | — |
| RoHS Status | Compliant | Compliant |
| Type | — | Digital Isolator, General Purpose |
| Channel Configuration | — | 2 forward / 2 reverse |
| Isolation Voltage | — | 2500 Vrms |
| Supply Voltage (VDD) | — | 2.375 V to 5.5 V |
| Technology | — | CMOS Capacitive Isolation |
| Approximate Body Length | — | 4.90 mm (narrow body) |
| Fail-Safe Output | — | Supported |