RD3.9ES diode equivalent, zener diode.
* DO-34 Glass sealed package This diode can be inserted into a PC board with a shorter pitch (5 mm)
5 mm Cathode indication 25 MIN.
φ 2.0 MAX.
25 MIN.
* Planar .
Circuits for Constant Voltage, Constant Current, Waveform clipper, Surge absorber, etc.
ABSOLUTE MAXIMUM RATINGS (TA = .
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