1N4736A SERIES
SILICON ZENER DIODE
6.8 to 51 Volt
VOLTAGE
FEATURES
• Low inductance
• High temperature soldering : 260°C /10 seconds at terminals
• Plastic package has Underwriters Laboratory Flammability
Classification 94V-O
• Lead free in compliance with EU RoHS 2011/65/EU directive
0.034(0.86)
0.028(0.71)
POWER
1 Watt
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 cathode end
• Weight: 0.012 ounce, 0.3 gram
• Packing information
B
- 1K per Bulk box
T/R - 5K per 13" paper Reel
T/B - 3K per horiz. tape & Ammo box
0.205(5.2)
0.160(4.1)
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
1.0(25.4)MIN.
0.107(2.7)
0.080(2.0)
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.
January 30,2015-REV.08
PAGE . 1
1N4736A SERIES
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
January 30,2015-REV.08
PAGE . 2
1N4736A SERIES
C
J
, Junction Capacitance (pF)
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
25
50
75
100 125 150 175 200
1000
0V BIAS
1V BIAS
100
50% VZ BIAS
P
D
, Maximum Power
Dissipation (w)
10
1
10
100
T
A
, Ambient Temperature (°C)
Fig.1 Steady-State Power Derating Curve
V
Z
, Zener Voltage (V)
Fig.2 Typical Junction Capacitance
10000.0
1000
I
F
, Forward Current (mA)
I
R
, Leakage Current(nA)
Typical Leakage Current at 80% of
Nominal Breakdown Voltage
1000.0
100.0
10.0
1.0
0.1
0
20
40
60
T
J
= 125°C
T
J
= 150°C
100
T
J
=
125°C
10
T
J
= 25°C
T
J
= 25°C
T
J
= 75°C
1
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
V
Z
, Nominal Zener Voltage (V)
V
F
, Forward Voltage (V)
Fig.3 Typical Leakage Characteristics
1000
Fig.4 Typical Forward Characteristics
1000
Zz,Dynamic Impedance (OHMS)
100
51V
Zz,Dynamic Impedance (OHMS)
100
I
Z
=1mA
10
I
Z
=5mA
I
Z
=20mA
0.1
1
10
100
10
22V
1
6.8V
1
0.1
0.5
5
50
I
Z
, Zener Current (mA)
V
Z
, Zener Voltage (V)
Fig.5 Typical Effect Of Zener Current On Zener
Impedance
Fig.6 Typical Effect Of Zener Voltage On Zener
Impedance
January 30,2015-REV.08
PAGE . 3
1N4736A SERIES
θV
Z
, Temperature Coefficient
(mV/
o
C)
120
θ
JL
, Junction To Lead Thermal
Resistance (
o
C / W )
100
100
80
60
40
20
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
10
1
1
10
100
L, Lead Length To Heat Sink (Inches)
Fig.7 Thermal Resistance Versus Lead Length
V
Z
, Zener Voltage (V)
Fig.8 Temperature Coefficient (+25
o
C To +150
o
C Temperature
Range ; 90% Of The Units Are In The Ranges Indicated)
January 30,2015-REV.08
PAGE . 4
1N4736A SERIES
Part No_packing code_Version
1N4736A_AY_10001
1N4736A_B0_00001
1N4736A_B0_10001
1N4736A_R2_00001
1N4736A_R2_10001
For example :
RB500V-40_R2_00001
Part No.
Serial number
Version code means HF
Packing size code means 13"
Packing type means T/R
Packing Code
XX
Packing type
Tape and Ammunition Box
(T/B)
Tape and Reel
(T/R)
Bulk Packing
(B/P)
Tube Packing
(T/P)
Tape and Reel (Right Oriented)
(TRR)
Tape and Reel (Left Oriented)
(TRL)
FORMING
1
st
Code
A
R
B
T
S
L
F
Packing size code
N/A
7"
13"
26mm
52mm
PANASERT T/B CATHODE UP
(PBCU)
PANASERT T/B CATHODE DOWN
(PBCD)
Version Code
XXXXX
2
nd
Code
HF or RoHS
1
st
Code 2
nd
~5
th
Code
0
1
2
X
Y
U
D
HF
RoHS
0
1
serial number
serial number
January 30,2015-REV.08
PAGE . 5
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