
DATA SHEET
ZENER DIODES
RD2.0MW to RD39MW
ZENER DIODES
200 mW 3-PIN MINI MOLD
DESCRIPTION
Type RD2.0MW to RD39MW Series are 3-PIN Mini Mold Package
zener diodes possessing allowable power dissipation of 200 mW.
FEATURES
• VZ; Applied E24 standard
• Surge absorber on either side
APPLICATIONS
Circuits for Constant Voltage, Constant Current, Wavefore clipper,
Surge absorber, ESD Protect circuit, etc.
MAXIMUM RATINGS (TA = 25°C)
Power Dissipation P 200 mW
Junction Temperature T
Storage Temperature Tstg –55 to +150°C
Peak Reverse Power PRSM 85 W (t = 10 µs)
Forward Current I
j 150°C
F 100 mA
PACKAGE DIMENSIONS
(Unit: mm)
2.8 ± 0.2
+0.1
–0.05
0.4
0.950.95
2.9 ± 0.2
0.3
1.1 to 1.4
1 . Cathode : K1
2 . Cathode : K2 SC-59 (EIAJ)
3 . Anode : A
1.5
2
1
Marking
0 to 0.1
+0.1
0.65
–0.15
3
+0.1
–0.05
0.4
+0.1
–0.06
0.16
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 devices/types available in every country. Please check with local NEC representative for availability
and additional information.
Document No. D10247EJ5V0DS00 (5th edition)
Date Published June 2000 N CP(K)
Printed in Japan
K2
K1
2
1
©
A
3
1993

ELECTRICAL CHARACTERISTICS (TA = 25 ± 2°C)
RD2.0MW to RD39MW
Dynamic
Impedance
Note 2
Z
Z (Ω)
Reverse Current
I
R (
µ
A)
Type
Number
Class
Zener Voltage
Note 1
V
Z (V)
MIN. MAX. Iz (mA) MAX. Iz (mA) MAX. VR(V)
RD2.0MW B 1.90 2.20 5 100 5 120 0.5
RD2.2MW B 2.10 2.40 5 100 5 120 0.7
RD2.4MW B 2.30 2.60 5 100 5 120 1.0
RD2.7MW B 2.50 2.90 5 110 5 120 1.0
RD3.0MW B 2.80 3.20 5 120 5 50 1.0
RD3.3MW B 3.10 3.50 5 130 5 20 1.0
RD3.6MW B 3.40 3.80 5 130 5 10 1.0
RD3.9MW B 3.70 4.10 5 130 5 10 1.0
RD4.3MW B 4.01 4.48 5 130 5 10 1.0
RD4.7MW B 4.42 4.90 5 130 5 10 1.0
RD5.1MW B 4.84 5.37 5 130 5 5 1.0
RD5.6MW B 5.31 5.92 5 80 5 5 1.5
RD6.2MW B 5.86 6.53 5 50 5 2 2.5
RD6.8MW B 6.47 7.14 5 30 5 2 3.5
RD7.5MW B 7.06 7.84 5 30 5 2 4.0
RD8.2MW B 7.76 8.64 5 30 5 2 5.0
RD9.1MW B 8.56 9.55 5 30 5 2 6.0
RD10MW B 9.45 10.55 5 30 5 2 7.0
RD11MW B 10.44 11.56 5 30 5 2 8.0
RD12MW B 11.42 12.60 5 35 5 2 9.0
RD13MW B 12.47 13.96 5 35 5 2 10
RD15MW B 13.84 15.52 5 40 5 2 11
RD16MW B 15.37 17.09 5 40 5 2 12
RD18MW B 16.94 19.03 5 45 5 2 13
RD20MW B 18.86 21.08 5 50 5 2 15
RD22MW B 20.88 23.17 5 55 5 2 17
RD24MW B 22.93 25.57 5 60 5 2 19
RD27MW B 25.10 28.90 2 70 2 2 21
RD30MW B 28.00 32.00 2 80 2 2 23
RD33MW B 31.00 35.00 2 80 2 2 25
RD36MW B 34.00 38.00 2 90 2 2 27
RD39MW B 37.00 41.00 2 100 2 2 30
Note 1. Tested with pulse (40 ms)
z is measured at Iz given a very small A.C. signal
2. Z
2 Data Sheet D10247EJ5V0DS00

RD2.0MW to RD39MW
Type
Number
Class
Zener Voltage
+Forward Voltage
(V
Z + VF) (V)
Zener Voltage
+ Forward Voltage
∆
(V + VF) (V)
MIN. MAX. IZ (mA) MAX. IZ (mA)
RD2.0MW B 2.54 3.04 5 0.35 5
RD2.2MW B 2.74 3.24 5 0.35 5
RD2.4MW B 2.97 3.47 5 0.35 5
RD2.7MW B 3.17 3.77 5 0.35 5
RD3.0MW B 3.47 4.07 5 0.35 5
RD3.3MW B 3.77 4.37 5 0.35 5
RD3.6MW B 4.07 4.67 5 0.35 5
RD3.9MW B 4.37 4.97 5 0.35 5
RD4.3MW B 4.68 5.35 5 0.35 5
RD4.7MW B 5.09 5.77 5 0.35 5
RD5.1MW B 5.51 6.24 5 0.35 5
RD5.6MW B 5.98 6.79 5 0.35 5
RD6.2MW B 6.53 7.40 5 0.35 5
RD6.8MW B 7.14 8.01 5 0.35 5
RD7.5MW B 7.73 8.71 5 0.35 5
RD8.2MW B 8.07 9.87 5 0.35 5
RD9.1MW B 8.87 10.87 5 0.35 5
RD10MW B 10.12 11.42 5 0.70 5
RD11MW B 11.11 12.43 5 0.70 5
RD12MW B 12.09 13.47 5 0.70 5
RD13MW B 13.14 14.83 5 0.90 5
RD15MW B 14.51 16.37 5 0.90 5
RD16MW B 16.04 17.96 5 0.90 5
RD18MW B 17.61 19.90 5 1.20 5
RD20MW B 19.53 21.95 5 1.20 5
RD22MW B 21.55 24.04 5 1.20 5
RD24MW B 23.60 26.44 5 1.20 5
RD27MW B 25.73 29.73 2 1.70 2
RD30MW B 28.63 32.83 2 1.70 2
RD33MW B 31.63 35.83 2 1.70 2
RD36MW B 34.63 38.83 2 1.70 2
RD39MW B 37.63 41.83 2 1.70 2
Forward Voltage
A–K1
V
(V)
F
A–K2
MAX. IF (mA)
1.2 100
Data Sheet D10247EJ5V0DS00
3

TYPICAL CHARACTERISTICS (TA = 25°C)
Fig. 1 P - TA RATING
250
200
150
100
P - Power Dissipation - mW
50
RD2.0MW to RD39MW
0
25 50 75 100 125 150
TA - Ambient Temperature - °C
RD2.0MW
RD2.2MW
100 m
RD2.4MW
RD2.7MW
10 m
RD3.0MW
1 m
RD3.3MW
100
µ
10
µ
1
µ
- Zener Current - A
Z
I
100 n
RD3.3MW
10 n
RD3.6MW RD4.3MW
1 n
12345678910
0
100 m
10 m
1 m
RD5.6MW
RD5.1MW
RD4.7MW
RD6.2MW
RD6.8MW RD7.5MW
VZ - Zener Voltage - V
(a)
RD15MW
RD16MW
Fig. 2 IZ - VZ CHARACTERISTICS (a to e)
RD8.2MW
RD18MW
RD9.1MW
RD20MW
100 m
10 m
1 m
100
µ
10
µ
1
µ
- Zener Current - A
Z
I
100 n
10 n
1 n
7 8 9 10 11 12 13 14 15
0
100 m
10 m
1 m
RD11MW
RD10MW
VZ - Zener Voltage - V
RD22MW
RD24MW
RD12MW
RD13MW
(b)
RD27MW
RD30MW
100
µ
10
µ
1
µ
- Zener Current - A
Z
I
100 n
10 n
1 n
12 13 14 15 16 17 18 19 20
11
100
10
1
- Zener Current - A
Z
I
100 n
10 n
1 n
VZ - Zener Voltage - V
(c)
4 Data Sheet D10247EJ5V0DS00
µ
µ
µ
0
15 20 22 24 25 28 30
VZ - Zener Voltage - V
(d)

RD2.0MW to RD39MW
0.1
Z
Z
- Zener Impedance - Ω
IZ - Zener Current - mA
1000
100
10
1
1 10 100
RD2.4MW
RD3.0MW
RD3.9MW
RD4.7MW
RD5.1MW
TYP.
RD5.6MW
RD10MW
RD24MW
RD20MW
RD15MW
RD7.5MW
RD2.0MW
RD39MW
100 m
RD32MW RD36MW
10 m
1 m
100
µ
10
µ
1
µ
- Zener Current - A
Z
I
100 n
10 n
1 n
0
15 30 35 40
Fig. 3
TYP.
0.1
0.08
0.06
0.04
0.02
0
–0.02
Temperature Coefficient - %/°C
Z
–0.04
- V
Z
γ
–0.06
RD39MW
Z
- Zener Voltage - V
V
(e)
γ
Z - VZ CHARACTERISTICS Fig. 4 ZZ - IZ CHARACTERISTICS
40
%/°C
32
24
16
mV/°C
8
0
–8
–16
–24
Temperature Coefficient - mV/°C
Z
- V
Z
γ
8162432
412202836
VZ - Zener Voltage - V
40
Data Sheet D10247EJ5V0DS00
5

RD2.0MW to RD39MW
Fig. 5 TRANSIENT THERMAL IMPEDANCE CHARACTERISTICS
1000
100
RD∗∗MW
10
1
– Transient Thermal Impedance – °C/W
th
Z
0.1
1 m 10 m 100 m 1 10 100
t – Time – s
Fig. 6 SURGE REVERSE POWER RATINGS
10000
1000
TA = 25°C
Repetitive
RSM
P
t
625 °C/W
T
100
– Surge Reverse Power – W
10
RSM
P
RD∗∗MW
1
1 1 m 10 m 100 m
µ
10
µ
100
µ
t – Pulse Width – s
6 Data Sheet D10247EJ5V0DS00

[MEMO]
RD2.0MW to RD39MW
Data Sheet D10247EJ5V0DS00
7

RD2.0MW to RD39MW
[MEMO]
• The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
• No part of this document may be copied or reproduced in any form or by any means without the prior written
consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in
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M7 98.8