This datasheet provides the key specifications for the Microsemi 1N3154‑1N3157A series of Zener diodes. It includes features, maximum ratings, electrical characteristics such as Zener voltage and power derating, and mechanical details like case type and thermal resistance.
The document also notes the availability of radiation‑hardened versions (RH prefix) and provides typical curves for power dissipation and temperature coefficient, useful for designers evaluating performance under varying temperature and current conditions.
| Zener Voltage | 8.4 V ±5 % |
|---|---|
| Operating Temperature | ‑65 °C to +175 °C |
| DC Power Dissipation (25 °C) | 500 mW |
| Power Derating | 3.83 mW/°C above 25 °C |
| Case Type | Hermetically sealed glass, DO‑7 |
| Thermal Resistance | 300 °C/W (typical) junction‑to‑lead |
| Polarity | Banded end positive relative to opposite end |
The diodes operate from –65 °C up to +175 °C.
The maximum DC power dissipation is 500 mW at 25 °C.
Yes, radiation‑hardened devices are designated with an “RH” prefix.