DATA SHEET
ZENER DIODES
RD2.0ES to RD39ES
400 mW DHD ZENER DIODE
(DO-34)
DESCRIPTION
NEC Type RD2.0ES to RD39ES Series are planar type diodes into DO-34
Package (Body length 2.4 mm MAX.) with DHD (Double Heatsink Diode)
construction having allowable power dissipation of 400 mW.
PACKAGE DIMENSIONS
(in millimeters)
φ
0.4
FEATURES
• 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.
• DHD (Double Heatsink Diode) construction
• V
Z
Applied E24 standard
ORDERING INFORMATION
RD2.0ES to RD39ES with suffix "AB1", "AB2", or "AB3" should be applied
for orders for suffix "AB".
DO-34 (JEDEC)
Marking color: Black
APPLICATIONS
Circuits for Constant Voltage, Constant Current, Waveform clipper, Surge absorber, etc.
ABSOLUTE MAXIMUM RATINGS (T
A
= 25
°
C)
Forward Current
Power Dissipation
Surge Reverse Power
Junction Temperature
Storage Temperature
I
F
P
P
RSM
T
j
T
stg
150 mA
400 mW
100 W (t = 10
µ
s)
175°C
–65 to +175°C
to see Fig. 6
to see Fig. 10
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.
Document No. D13935EJ7V0DS00 (7th edition)
Date Published April 2003 N CP(K)
Printed in Japan
c
25 MIN.
• Planar process
2.4 MAX.
RD2.0ES to RD39ES
Zener Voltage
V
Z
(V)
Note 1
MIN.
10.18
10.18
10.50
10.82
11.13
11.13
11.50
11.80
12.18
12.18
12.59
13.03
13.48
13.48
13.95
14.42
14.87
14.87
15.33
15.79
16.34
16.34
16.90
17.51
18.14
18.14
18.80
19.52
20.23
20.23
20.76
21.22
21.68
22.26
22.26
22.75
23.29
23.81
24.26
24.26
24.97
25.63
26.29
26.99
26.99
27.70
28.36
29.02
29.68
29.68
30.32
30.90
31.49
32.14
32.14
32.79
33.40
34.01
34.68
34.68
35.36
36.00
36.63
MAX.
11.26
10.63
10.95
11.26
12.30
11.63
11.92
12.30
13.62
12.71
13.16
13.62
15.02
14.09
14.56
15.02
16.50
15.50
15.96
16.50
18.30
17.06
17.67
18.30
20.45
18.96
19.68
20.45
22.61
21.08
21.65
22.09
22.61
24.81
23.12
23.73
24.27
24.81
27.64
25.52
26.26
26.95
27.64
30.51
28.39
29.13
29.82
30.51
33.11
31.22
31.88
32.50
33.11
35.77
33.79
34.49
35.13
35.77
38.52
36.47
37.19
37.85
38.52
I
Z
(mA)
5
Dynamic Impedance
Z
Z
(Ω)
Note 2
MAX.
20
I
Z
(mA)
5
Knee Dynamic
Impedance
Z
ZK
(Ω)
Note 2
MAX.
I
Z
(mA)
120
0.5
Reverse Current
I
R
(
µ
A)
MAX.
0.2
V
R
(V)
8.0
Type
Number
Suffix
AB
AB1
AB2
AB3
AB
AB1
AB2
AB3
AB
AB1
AB2
AB3
AB
AB1
AB2
AB3
AB
AB1
AB2
AB3
AB
AB1
AB2
AB3
AB
AB1
AB2
AB3
AB
AB1
AB2
AB3
AB4
AB
AB1
AB2
AB3
AB4
AB
AB1
AB2
AB3
AB4
AB
AB1
AB2
AB3
AB4
AB
AB1
AB2
AB3
AB4
AB
AB1
AB2
AB3
AB4
AB
AB1
AB2
AB3
AB4
RD11ES
RD12ES
5
25
5
110
0.5
0.2
9.0
RD13ES
5
25
5
110
0.5
0.2
10
RD15ES
5
25
5
110
0.5
0.2
11
RD16ES
5
25
5
150
0.5
0.2
12
RD18ES
5
30
5
150
0.5
0.2
13
RD20ES
5
30
5
200
0.5
0.2
15
RD22ES
5
30
5
200
0.5
0.2
17
RD24ES
5
35
5
200
0.5
0.2
19
RD27ES
5
45
5
250
0.5
0.2
21
RD30ES
5
55
5
250
0.5
0.2
23
RD33ES
5
65
5
250
0.5
0.2
25
RD36ES
5
75
5
250
0.5
0.2
27
RD39ES
5
85
5
250
0.5
0.2
30
Notes 1.
tested with pulse (40 ms)
2.
Z
Z
and Z
ZK
are measured at lz by given a very small A.C. current signal.
3.
Suffix AB is Suffix AB1, AB2, AB3 or AB4.
Data Sheet D13935EJ7V0DS
3
RD2.0ES to RD39ES
Fig. 6 POWER DISSIPATION vs.
AMBIENT TEMPERATURE
500
500
Fig. 7 THERMAL RESISTANCE vs.
SIZE OF P.C BOARD
Junction to ambient
P – Power Dissipation – mW
400
= 10 mm
= 5 mm
= 3 mm
R
th
– Thermal Resistance –
°C/W
= 10 mm
= 5 mm
= 3 mm
φ
7 mm P.C. Board
t = 0.035 mm
400
= 10 mm
= 5mm
300
= 3mm
200
S
300
200
φ
3 mm P.C. Board
t = 0.035 mm
100
100
0
20
40
60
80
100 120 140 160 180 200
0
20
40
60
80
100
T
A
– Ambient Temperature –
°C
S – Size of P.C. Board – mm
2
Fig. 8 DYNAMIC IMPEDANCE vs.
ZENER CURRENT
1000
TYP.
γ
Z
– V
Z
Temperature Coefficience – %/°C
Fig. 9 ZENER VOLTAGE TEMPERATURE
COEFFICIENT vs. ZENER VOLTAGE
0.1
TYP.
0.08
%/°C
0.06
0.04
0.02
0
–0.02
–0.04
–0.06
RD2.0ES to RD39ES
–0.08
–0.1
0
4
8
12 16
20 24 28
32 36 40
44
–32
–40
mV/°C
24
16
8
0
–8
–16
–24
32
40
γ
Z
– V
Z
Temperature Coefficience – mV/°C
Z
Z
– Dynamic Impedance –
Ω
RD
5.1
100
ES
RD
39
ES
RD3.3ES
RD2.0ES
RD3.9ES
0ES
RD15ES
10
RD
2
R
D
7.
5E
RD4.7ES
S
RD
10
RD
ES
5.6
1
0.01
ES
0.1
1
I
Z
– Zener Current – mA
10
100
V
Z
– Zener Voltage – V
Fig. 10
1000
P
RSM
– Surge Reverse Power – W
SURGE REVERSE POWER RATINGS
T
A
=25°C
Non-Repetitive
P
RSM
t
T
100
10
1
1
µ
10
µ
100
µ
1m
10 m
100 m
t
T
– Pulse Width – s
Data Sheet D13935EJ7V0DS
5
Power technology
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