Overview
The SSRP105B1 is a dual asymmetrical transient voltage suppressor (TVS) designed by STMicroelectronics to provide protection against lightning strikes and other transient overvoltages. This component is specifically tailored for use in solid-state relays and Subscriber Line Interface Circuits (SLICs) with integrated ring generators. The SSRP105B1 ensures the integrity of these devices by offering asymmetrical protection, which is crucial for various ringing schemes in telecom applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Pulse Current (IPP) | 50 A (5/310 µs) | A |
| Holding Current (IH) | 100 mA (positive), 150 mA (negative) | mA |
| Stand-off Voltage (VR) | +105 V (positive), -180 V (negative) between Line and Ground | V |
| Stand-off Voltage (VR) | +180 V (positive), -180 V (negative) between Line and Line | V |
| Breakover Voltage (VBO) | 165-225 V (positive), 165-225 V (negative) | V |
| Leakage Current (IR) | 10 µA at VR = +105 V or -180 V | µA |
| Operating Temperature Range | 0 to +70 °C | °C |
| Storage Temperature Range | -55 to +150 °C | °C |
| Maximum Junction Temperature | +150 °C | °C |
| Package Type | SO-8 Plastic |
Key Features
- Dual asymmetrical transient voltage suppression for protection against lightning strikes and other transient overvoltages.
- Designed for solid-state relays and SLICs with integrated ring generators.
- Complies with various standards including ITU-T K20/K21, VDE0433, IEC61000-4-5, FCC Part 68, and Bellcore GR1089.
- Provides differential mode protection for SLICs.
- Two crowbar functions for protection of TIP and RING lines versus ground.
- Asymmetrical voltage characteristics to ensure protection close to the peak of normal operating voltage without disturbing the ring signal.
Applications
- Solid-state relays.
- Subscriber Line Interface Circuits (SLICs) with integrated ring generators.
- Telecom line protection, particularly in scenarios requiring asymmetrical protection against transient overvoltages.
Q & A
- What is the SSRP105B1 used for? The SSRP105B1 is used to protect solid-state relays and SLICs with integrated ring generators from transient overvoltages.
- What type of protection does the SSRP105B1 offer? The SSRP105B1 offers dual asymmetrical transient voltage suppression.
- What are the key standards the SSRP105B1 complies with? The SSRP105B1 complies with ITU-T K20/K21, VDE0433, IEC61000-4-5, FCC Part 68, and Bellcore GR1089.
- What is the peak pulse current rating of the SSRP105B1? The peak pulse current (IPP) is 50 A for a 5/310 µs pulse waveform.
- What are the holding current values for the SSRP105B1? The holding current (IH) is 100 mA for positive polarity and 150 mA for negative polarity.
- What is the operating temperature range of the SSRP105B1? The operating temperature range is 0 to +70 °C.
- What is the package type of the SSRP105B1? The package type is SO-8 Plastic.
- Does the SSRP105B1 provide differential mode protection? Yes, it provides differential mode protection for SLICs.
- How does the SSRP105B1 protect against transient overvoltages? It uses asymmetrical voltage characteristics and two crowbar functions to protect TIP and RING lines versus ground.
- Is the SSRP105B1 suitable for use in life support devices? No, the SSRP105B1 is not authorized for use as critical components in life support devices or systems without express written approval from STMicroelectronics.
