1N4736A~1N4757A
SILICON ZENER DIODE
VOLTAGE
6.8 to 51 Volts
FEATURES
• Low profile package
• Built-in strain relief
• Low inductance
• High temperature soldering : 260°C /10 seconds at terminals
• Plastic package has Underwriters Laboratory Flammability
Classification 94V-O
• In compliance with EU RoHS 2002/95/EC directives
0.034(0.86)
0.028(0.71)
POWER
1.0 Watts
0.205(5.2)
MECHANICAL DATA
• Case: Molded plastic DO-41
• Epoxy:UL 94V-O rate flame retardant
• Terminals: Axial leads, solderable per MIL-STD-750, Method 2026
guaranteed
• Polarity: Color band denotes positive end
• Mounting position:Any
• Weight: 0.012 ounce, 0.3 gram
• Packing information
B
- 1K per Bulk box
T/R - 5K per 13" paper Reel
T/B - 2.5K per horiz. tape & Ammo box
1.0(25.4)MIN.
0.160(4.1)
0.107(2.7)
0.080(2.0)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Parameter
Power Dissipation at Tamb = 25
Junction Temperature
Storage Temperature Range
O
Symbol
Value
1*
-55 to + 150
-55 to + 150
Units
W
O
C
P
TOT
T
J
T
STG
C
C
O
*Valid provided that leads at a distance of 10mm from case are kept at ambient temperature.
March 18,2011-REV.06
PAGE . 1
1N4736A~1N4757A
N o m i n a l Ze n e r Vo l t a g e
Part Number
N o m. V
1.0 Watt ZENER
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
6.46
7.13
7.79
8.65
9.5
10.45
11.4
12.35
14.25
15.2
17.1
19
20.9
22.8
25.65
28.5
31.35
34.2
37.05
40.85
44.65
48.45
7.14
7.88
8.61
9.56
10.5
11.55
12.6
13.65
15.75
16.8
18.9
21
23.1
25.2
28.35
31.5
34.65
37.8
40.95
45.15
49.35
53.55
3.5
4
4.5
5
7
8
9
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
V
Z
@ I
ZT
Min . V
Ma x . V
Ω
M a x i m u m Ze n e r I m p e d a n c e
Z
ZT
@ I
ZT
mA
Ω
Z
ZK
@ I
ZK
mA
M a x i m u m Leakage Current
I
R
@ V
R
uA
V
Marking
C ode
D O-4 1
37
34
31
28
25
23
21
19
17
15.5
14
12.5
11.5
10.5
9.5
8.5
7.5
7
6.5
6
5.5
5
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
1
0.5
0.5
0.5
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
5
5
5
0.5
0.5
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
4
5
6
7
7.6
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
March 18,2011-REV.06
PAGE . 2
1N4736A~1N4757A
NOTE:
1. Tolerance and Type Number Designation. The type umbers listed have a standard tolerance on the nominal zener
voltage of + 5%
2. Specials Available Include:
A. Nominal zener voltages between the voltages shown and tighter voltage tolerances.
B. Matched sets.
3. Zener Voltage (Vz) Measurement. Guarantees the zener voltage when measured at 90 seconds while maintaining
the lead temperature (T
L
) at 30
o
C + 1
o
C, from the diode body.
4. Zener Impedance (Zz) Derivation. The zener impedance is derived from the 60 cycle ac voltage, which results when
an ac current having an rms value equal to 10% of the dc zener current (Izt or Izk) is superimposed on Izt or Izk.
5. Surge Current (Ir) Non-Repetitive. The rating listed in the electrical characteristics table is maximum peak,
non-repetitive, reverse surge current of 1/2
RATING AND CHARACTERISTICS CURVES
P
D
, MAXIMUM POWER DISSIPATION (WATTS)
1.0
0.75
0.5
0.25
0
0
20
40
60
80
100
120
140 160 180
O
200
T
L
, LEAD TEMPERATURE ( C)
FIGURE.1 POWER TEMPERATURE DERATING CURVE
a.RAMGE FOR UNITS TO 12 VOLTS
b.RAMGE FOR UNITS 12 TO 51 VOLTS
FIGURE.2 TEMPERATURE COEFICIENTS
O
O
(-55 C TO +150 C TEMPERATURE RANGE; 90% OF THE UNITS ARE IN THE RANGES INDICATED.)
March 18,2011-REV.06
PAGE . 3
1N4736A~1N4757A
FIGURE.3TYPICAL THERMAL RESISTANCE
versus LEAD LENGTH
FIGURE.4 EFFECT OF ZENER CURRENT
FIGURE.5 MZXIMUM SURGE POWER
FIGURE.6 EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE
FIGURE.7 EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE
March 18,2011-REV.06
PAGE . 4
1N4736A~1N4757A
FIGURE.9 TYPICAL CAPACITANCE versus Vz
FIGURE.8 TYPICAL LEAKAGE CURRENT
March 18,2011-REV.06
m
FIGURE.10 TYPICAL FORWARD CHARACTERISTICS
PAGE . 5
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