Overview
The SMP50-270 is a Thyristor-based surge protection device manufactured by STMicroelectronics. It is part of the Trisil series, designed to protect telecommunication equipment against lightning and transient surges induced by AC power lines. This device is available in an SMA (JEDEC DO-214AC) package and is known for its robust protection capabilities and compliance with various industry standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Stand-off Voltage (VRM) | 243 | V |
| Breakdown Voltage (VBR) | 270 | V |
| Holding Current (IH) | 150 mA (min) | mA |
| Peak Pulse Current (IPP) | 50 A (10/1000 µs) | A |
| Leakage Current (IR) | 2 µA (max) | µA |
| Capacitance (C) | 12 pF @ 50 V | pF |
| Storage Temperature Range | -55 to 150 | °C |
| Maximum Junction Temperature | 150 | °C |
| Maximum Lead Temperature for Soldering | 260 | °C |
Key Features
- Bidirectional Crowbar Protection: Provides protection in both directions.
- Low Capacitance: From 12 pF to 20 pF @ 50 V, minimizing the impact on high-frequency signals.
- Low Leakage Current: Maximum of 2 µA, reducing power consumption.
- Fail-Safe Mode: Acts as a short circuit in fail-safe mode, ensuring better protection.
- Compliance with Industry Standards: Meets standards such as UL1950, IEC950 / CSA C22.2, UL1459, and FCC part 68.
- UL94 V0 Approved Resin: Ensures high safety standards for the epoxy used.
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 Surge Protection: Designed to protect against surges induced by AC power lines.
Q & A
- What is the SMP50-270 used for?
The SMP50-270 is used to protect telecommunication equipment against lightning and transient surges induced by AC power lines.
- What package type is the SMP50-270 available in?
The SMP50-270 is available in an SMA (JEDEC DO-214AC) package.
- What is the stand-off voltage of the SMP50-270?
The stand-off voltage (VRM) of the SMP50-270 is 243 V.
- What is the peak pulse current rating of the SMP50-270?
The peak pulse current (IPP) rating of the SMP50-270 is 50 A (10/1000 µs).
- Does the SMP50-270 comply with industry standards?
- What is the maximum junction temperature of the SMP50-270?
The maximum junction temperature of the SMP50-270 is 150°C.
- What is the fail-safe mode of the SMP50-270?
In fail-safe mode, the SMP50-270 acts as a short circuit, ensuring better protection.
- What is the leakage current of the SMP50-270?
The leakage current (IR) of the SMP50-270 is a maximum of 2 µA.
- Is the SMP50-270 suitable for high-frequency applications?
- What is the storage temperature range of the SMP50-270?
The storage temperature range of the SMP50-270 is -55 to 150°C.
