MLL1.4KESD5.0-1.4KESD170A is a surface mount transient voltage suppressor produced by Microsemi. It can effectively protect sensitive components from ESD and EFT transient voltages in circuit design.
These small surface‑mount TVS (Transient Voltage Suppressor) devices protect sensitive circuits from fast‑rise‑time transients such as electrostatic discharge (ESD) and electrical fast transients (EFT). They offer low inherent capacitance for high‑frequency applications and are available in hermetically sealed DO‑213AA packages.
Key specifications include a stand‑off voltage range of 5 V to 170 V, peak‑pulse power up to 400 W for a 1 µs square wave, and a forward surge current of 50 A for 1 s at 25 °C. The devices operate from –65 °C to 175 °C and are supplied in tape‑and‑reel (TR) form for automated assembly.
| Stand‑off Voltage Range | 5 V to 170 V |
|---|---|
| Peak Pulse Power | 400 W for 1 µs square wave |
| Forward Surge Current | 50 A for 1 s at 25 °C |
| DC Power Dissipation | 500 mW at Tc = 100 °C |
| Thermal Resistance | 150 °C/W junction‑to‑end cap |
| Operating Temperature | –65 °C to 175 °C |
The devices can clamp transients in excess of 15,000 V per MIL‑STD‑750, Method 1020.
They have low inherent capacitance suitable for high‑frequency applications; the exact value is shown in Figure 4.