The document provides design data and characteristics of Microsemi's diodes models CDLL5518B to CDLL5523B.
The CDLL5518 series from Microsemi consists of lead‑less, surface‑mount Zener diodes covering a wide voltage range. The datasheet lists maximum ratings, electrical characteristics, and test conditions for each part number from CDLL5518 through CDLL5546.
Key specifications include a junction and storage temperature range of –65 °C to +125 °C, a maximum power dissipation of 500 mW at 125 °C, and a forward voltage of up to 1.1 V at 200 mA. Devices are supplied in a DO‑213AA hermetically sealed case (MELF, SOD‑80, LL34) and feature low reverse leakage currents.
| Junction and Storage Temperature | -65 °C to +125 °C |
|---|---|
| DC Power Dissipation | 500 mW @ TEG = +125 °C |
| Power Derating | 10 mW/°C above TEG = +125 °C |
| Forward Voltage @ 200 mA | 1.1 V maximum |
| Package | DO‑213AA, hermetically sealed (MELF, SOD‑80, LL34) |
The diode is operated with the banded (cathode) end positive.
Zener voltage is measured with the device junction in thermal equilibrium at an ambient temperature of 25 °C + 3 °C.
The devices are supplied in a DO‑213AA hermetically sealed case, also described as MELF, SOD‑80, LL34.