1sma4735 PanJit Semiconductors (Pan Jit), 1sma4735 Datasheet - Page 3

• Manufacturer Part Number: 1sma4735
• Description: Surface Mount Silicon Zener Diode
• Manufacturer: PanJit Semiconductors (Pan Jit)

STAD-JAN.27.2005
NOTE:
1. Tolerance and Type Number Designation. The type umbers listed have a standard tolerance on the nominal zener
2. Specials Available Include:
3. Zener Voltage (Vz) Measurement. Guarantees the zener voltage when measured at 90 seconds while maintaining
4. Zener Impedance (Zz) Derivation. The zener impedance is derived from the 60 cycle ac voltage, which results when
5. Surge Current (Ir) Non-Repetitive. The rating listed in the electrical characteristics table is maximum peak,
RATING AND CHARACTERISTICS CURVES
voltage of
A. Nominal zener voltages between the voltages shown and tighter voltage tolerances.
B. Matched sets.
the lead temperature (T ) at 30 C
an ac current having an rms value equal to 10% of the dc zener current (Izt or Izk) is superimposed on Izt or Izk.
non-repetitive, reverse surge current of 1/2
+
5%
a.RANGE FOR UNITS TO 12 VOLTS
(-55 C TO +150 C TEMPERATURE RANGE; 90% OF THE UNITS ARE IN THE RANGES INDICATED.)
O
L
O
FIGURE.1 POWER TEMPERATURE DERATING CURVE
o
+
1 C, from the diode body.
0.75
0.25
1.0
0.5
o
0
FIGURE.2 TEMPERATURE COEFICIENTS
0
20
T , LEAD TEMPERATURE ( C)
L
40
60
80 1
0
0
1
2
0
b.RANGE FOR UNITS 12 TO 100 VOLTS
L=LEAD LENGTH
TO HEAT SINK
1
4
0
O
1
6
0
1
8
0
2
0
0
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