Overview
The DA108S1RL is a diode array produced by STMicroelectronics, designed to protect signal lines from transient overvoltages. This component is configured as an array of 8 diodes, each arranged in cells of 2 diodes. The diodes work together to clamp transient overvoltages, ensuring the protection of digital lines. The maximum voltage of each diode is 18 V, allowing for input voltage ranges of either 0 V to 18 V or -9 V to +9 V, depending on the reference voltages (REF1 and REF2) used.
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 |
| 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) |
| Rth (j-a) (Junction to ambient thermal resistance) | 170 | °C/W |
Key Features
- Array of 8 or 12 diodes configured by cells of 2 diodes.
- Suitable for digital line protection.
- Low input capacitance.
- Complies with IEC 61000-4-2 Level 4 – 15kV (air discharge) and 8kV (contact discharge).
- Available in SO-8 package.
- Ecopack2 compliant, lead-free second level interconnect.
Applications
- Protection of the logic side of ISDN S-interface.
- Protection of I/O lines of microcontrollers.
- Signal conditioning in various electronic systems.
Q & A
- What is the DA108S1RL used for?
The DA108S1RL is used to protect signal lines from transient overvoltages by clamping action.
- How many diodes are in the DA108S1RL array?
The DA108S1RL contains an array of 8 diodes.
- What is the maximum repetitive peak reverse voltage (VRRM) of the DA108S1RL?
The maximum VRRM is 18 V.
- What is the maximum power dissipation of the DA108S1RL?
The maximum power dissipation is 0.73 W.
- What are the storage and operating temperature ranges for the DA108S1RL?
The storage temperature range is -55 to +150 °C, and the operating junction temperature range is also -55 to +150 °C.
- What is the peak forward voltage (VFP) of the DA108S1RL?
The peak forward voltage is 9 V for the DA108S1 and 12 V for the DA112S1, at IPP = 12 A and tp = 8/20 µs.
- Is the DA108S1RL compliant with any specific standards?
Yes, it complies with IEC 61000-4-2 Level 4 – 15kV (air discharge) and 8kV (contact discharge).
- What package type is the DA108S1RL available in?
The DA108S1RL is available in an SO-8 package.
- Is the DA108S1RL lead-free and RoHS compliant?
Yes, it is lead-free and complies with Ecopack2 standards.
- What are some common applications of the DA108S1RL?
Common applications include protection of the logic side of ISDN S-interface, protection of I/O lines of microcontrollers, and signal conditioning.
