The K511 - K681 series is a low current, low impedance zener diode with a unique manufacturing process, remarkably sharp break diodes, and very low impedance at low current levels. It is the lowest impedance ever achieved at the 250uA level
The K511‑K681 series are low‑level Zener diodes with a remarkably sharp knee and very low dynamic impedance at low current levels. They are designed for applications requiring precise voltage regulation and minimal impedance at 250 µA.
These diodes are supplied in a DO‑7 package, can dissipate up to 250 mW at 50 °C ambient, and operate from –65 °C to +175 °C (storage up to +200 °C). The forward voltage drop is 1.3 V at 100 mA, and the voltage tolerance is +10 %.
| Zener voltage (K511) | 5.1 V |
|---|---|
| Dynamic impedance @ 250 µA (K511) | 50 Ω |
| Reverse current @ 250 µA (K511) | 15 µA |
| Package style | DO‑7 |
| DC power dissipation @ 50 °C | 250 mW |
| Forward voltage drop @ 100 mA | 1.3 V |
| Operating temperature range | -65 °C to +175 °C |
| Storage temperature range | -65 °C to +200 °C |
| Voltage tolerance | +10 % |
They are supplied in a DO‑7 package.
The forward voltage drop is 1.3 V at 100 mA.
They operate from –65 °C to +175 °C.
The maximum DC power dissipation is 250 mW at 50 °C.