Overview
The SMTPA180 is a part of the Trisil series designed by STMicroelectronics to protect telecommunication equipment against lightning and transient surges induced by AC power lines. These components are engineered to provide robust protection and ensure the reliability of telecommunication systems.
Available in SMB packages, the SMTPA180 is part of a family that includes various voltage ratings and is compliant with several industry standards such as UL1950, IEC950 / CSA C22.2, UL1459, and FCC part 68. The Trisil series is known for its fail-safe mode in short circuit conditions and its non-aging characteristics, enhancing the overall protection of the equipment.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Part Number | SMTPA180 | - |
| Package | SMB | - |
| VRM (V) (max) | 162 | V |
| Directionality | Bi-Directional | - |
| Repetitive Peak Pulse Current (IPP) | 50 A (10/1000 μs) | A |
| Holding Current (IH) | 150 mA min | mA |
| Leakage Current (IR) | 2 μA max | μA |
| Capacitance | 12 pF to 20 pF @ 50 V | pF |
| Operating Temperature (°C) | -40 to 150 | °C |
Key Features
- Bidirectional Crowbar Protection: Provides protection in both directions, ensuring comprehensive surge protection.
- Low Capacitance: Ranges from 12 pF to 20 pF at 50 V, minimizing the impact on high-frequency signals.
- Low Leakage Current: Maximum leakage current of 2 μA, reducing power consumption and heat generation.
- Holding Current: Minimum holding current of 150 mA, ensuring stable operation during transient events.
- Fail-Safe Mode: Trisils are not subject to ageing and provide a fail-safe mode in short circuit conditions for enhanced protection.
- Compliance with Industry Standards: Meets standards such as UL1950, IEC950 / CSA C22.2, UL1459, and FCC part 68.
Applications
- Telecommunication Equipment: Protects analog and digital line cards (xDSL, T1/E1, ISDN, etc.) and terminals (phone, fax, modem) as well as central office equipment.
- Lightning and Transient Protection: Designed to safeguard against lightning and transient surges induced by AC power lines.
- Industrial and Commercial Systems: Suitable for use in various industrial and commercial telecommunication systems requiring robust surge protection.
Q & A
- What is the primary function of the SMTPA180?
The primary function of the SMTPA180 is to protect telecommunication equipment against lightning and transient surges induced by AC power lines.
- What package type is the SMTPA180 available in?
The SMTPA180 is available in the SMB package.
- What is the maximum repetitive peak pulse current (IPP) of the SMTPA180?
The maximum repetitive peak pulse current (IPP) is 50 A (10/1000 μs).
- What is the holding current (IH) of the SMTPA180?
The holding current (IH) is 150 mA min.
- What is the leakage current (IR) of the SMTPA180?
The leakage current (IR) is 2 μA max.
- What is the capacitance range of the SMTPA180 at 50 V?
The capacitance ranges from 12 pF to 20 pF at 50 V.
- Is the SMTPA180 bidirectional?
Yes, the SMTPA180 provides bidirectional crowbar protection.
- What are the operating temperature ranges for the SMTPA180?
The operating temperature range is -40°C to 150°C.
- Does the SMTPA180 meet any industry standards?
Yes, it meets standards such as UL1950, IEC950 / CSA C22.2, UL1459, and FCC part 68.
- What types of equipment is the SMTPA180 typically used to protect?
The SMTPA180 is used to protect telecommunication equipment such as analog and digital line cards, terminals, and central office equipment.
- Does the SMTPA180 have a fail-safe mode?
Yes, the Trisil series, including the SMTPA180, provides a fail-safe mode in short circuit conditions.
