DL4728A Datasheet, PDF (1/3 Pages) Rectron Semiconductor – Surface Mount M.E.L.F ZENER DIODE

DL4728A THRU DL4764A
Features
· 1.0W Power Dissipation
· 3.9V - 100V Nominal Zener Voltages
· Standard VZ Tolerance is 5%
1W SURFACE MOUNT
ZENER DIODES
MELF (DO-41)
SOLDERABLE ENDS
0.024(0.60)
0.018(0.46)
Mechanical Data
· Case : MELF(DO-41) glass
· Terminals : Solderable per MIL-STD-202, method 208
· Polarity : Cathode band
· Approx. Weight : 0.25 grams
0.205(5.20)
0.190(4.80)
0.105(2.70)
0.095(2.40)
Dimensions in inches and (millimeters)
Absolute Maximum Ratings (Limiting Values) (TA=25 )
Zener current see table "Characteristics"
Power dissipation at TA=25 (Note 1)
Thermal resistance - Junction to ambient air (Note 1)
Forward voltage at IF=200 mA
Operating & storage temperature range
Symbols
Iz
Pd
R JA
VF
TJ, TSTG
Value
Pd/Vz
1
170
1.2
-65 to +200
Units
mA
W
K/W
V
Notes :
(1) Valid provided that electrodes of the case ard kept at ambient temperature.
(2) Measured under thermal equilibrium and DC (IZT) test conditions.
(3) The Zener impedance is derived from the 60Hz AC voltage which results when an AC current having an RMS value equal to 10%
of the Zener current (IZT or IZK) is superimposed on IZT or IZK. Zener impedance is measured at two points to insure a sharp knee
on the breakdown curve and to eliminate unstable units.