Overview
The DA108S1 is a diode array produced by STMicroelectronics, designed to protect signal lines from transient overvoltages. This component is part of the DA108S1 and DA112S1 series, which feature arrays of 8 or 12 diodes configured in cells of two diodes each. These diodes work together to clamp and protect signal lines against transient overvoltages. The DA108S1 is particularly suited for digital line protection and complies with stringent ESD standards such as IEC 61000-4-2 Level 4, withstanding up to 15kV air discharge and 8kV contact discharge.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VRRM (Repetitive peak reverse voltage) | 18 | V |
| IPP (Repetitive peak forward current) | 12 | A (tp = 8/20 µs) |
| P (Power dissipation) | 0.73 | W |
| Tstg (Storage temperature range) | -55 to +150 | °C |
| Tj (Operating junction temperature range) | -55 to +150 | °C |
| TL (Maximum lead temperature for soldering during 10 s) | 260 | °C |
| Rth (j-a) (Junction to ambient thermal resistance) | 170 | °C/W |
| VFP (Peak forward voltage) | 9 (DA108S1), 12 (DA112S1) | V (IPP = 12 A, tp = 8/20 µs) |
| VF (Forward voltage) | 1.2 | V (IF = 50 mA) |
| IR (Reverse leakage current) | 2 | µA (VR = 15 V) |
Key Features
- Array of 8 diodes configured in cells of two diodes each, providing protection against transient overvoltages by clamping action.
- Low input capacitance, making it suitable for high-speed applications.
- Complies with IEC 61000-4-2 Level 4 ESD standards, withstanding up to 15kV air discharge and 8kV contact discharge.
- Operating temperature range from -55°C to +150°C.
- Surface mount SO-8 package, with options for tube or tape and reel packaging.
- ECOPACK® lead-free second level interconnect, meeting environmental requirements.
Applications
- Protection of the logic side of ISDN S-interfaces.
- Protection of I/O lines of microcontrollers.
- Signal conditioning in various electronic systems.
Q & A
- What is the DA108S1 used for? The DA108S1 is used to protect signal lines from transient overvoltages by clamping action.
- How many diodes are in the DA108S1? The DA108S1 contains an array of 8 diodes.
- What is the repetitive peak reverse voltage (VRRM) of the DA108S1? The VRRM is 18 V.
- What are the ESD protection capabilities of the DA108S1? It complies with IEC 61000-4-2 Level 4, withstanding up to 15kV air discharge and 8kV contact discharge.
- What is the operating temperature range of the DA108S1? The operating temperature range is from -55°C to +150°C.
- What package types are available for the DA108S1? It is available in SO-8 packages, with options for tube or tape and reel packaging.
- Is the DA108S1 lead-free? Yes, it is available in ECOPACK® lead-free second level interconnect packages.
- What are some common applications of the DA108S1? Common applications include protection of ISDN S-interfaces, microcontroller I/O lines, and signal conditioning.
- What is the maximum lead temperature for soldering the DA108S1? The maximum lead temperature for soldering is 260°C for 10 seconds.
- What is the power dissipation of the DA108S1? The power dissipation is 0.73 W.
