The popular 1N4565 thru 1N4584A-1 series of Zero-TC Reference Diodes provides a selection of both 6.4 V nominal voltages and temperature coefficients to as low as 0.0005%/oC for minimal voltage change with temperature. Four different operating currents are available for selection at 0.5 mA, 1.0 mA, 2.00 mA, and 4.00 mA. These glass axial-leaded DO-7 reference diodes are internal-metallurgical-bonded and are also available in JAN, JANTX, and JANTXV military qualifications. Microsemi also offers numerous other Zener Reference Diode products for a variety of other voltages up to 200 V.
The 1N4565 through 1N4584A‑1 series of Zero‑TC Reference Diodes offers 6.4 V nominal voltage with temperature coefficients as low as 0.0005 %/°C. Four test‑current selections (0.5 mA, 1.0 mA, 2.0 mA, 4.0 mA) are available, and the devices are offered in glass axial‑lead DO‑7, surface‑mount DO‑213AA, and DO‑35 packages with military qualifications.
These diodes operate from –65 °C to +175 °C, dissipate up to 500 mW at 25 °C (max Iz = 70 mA), and are supplied in tape‑and‑reel form. Mechanical dimensions and packaging details are provided for precise board layout.
| Nominal Voltage | 6.4 V ±5 % |
|---|---|
| Temperature Coefficient | 0.01 %/°C to 0.0005 %/°C |
| Zener Test Current Options | 0.5 mA, 1.0 mA, 2.0 mA, 4.0 mA |
| Operating Temperature Range | -65 °C to +175 °C |
| Storage Temperature Range | -65 °C to +175 °C |
| DC Power Dissipation | 500 mW @ 25 °C (max Iz = 70 mA) |
| Soldering Temperature | 260 °C for 10 s (max) |
| Weight | 0.2 g |
The diodes can be tested at 0.5 mA, 1.0 mA, 2.0 mA, or 4.0 mA.
They operate from –65 °C up to +175 °C.
Each diode can dissipate up to 500 mW at 25 °C with a maximum current of 70 mA.