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©1993
DATA SHEET
ZENER DIODES
RD4.7UJ to RD39UJ
LOW NOISE SHARP BREAKDOWN CHARACTERISTICS
ZENER DIODES
2PIN ULTRA SUPER MINI MOLD
Document No. D13938EJ3V0DS00 (3rd edition)
(Previous No. DC-2135)
Date Published March 1999 N CP(K)
Printed in Japan
DESCRIPTION
Type RD4.7UJ to RD39UJ Series are 2PIN Ultra Super Mini
Mold Package zener diodes possessing an allowable power
dissipation of 150 mW featuring low noise and sharp break-
down characteristic. They are intended for use in audio equip-
ment, instrument equipment.
FEATURES
• Low Noise
• Sharp Breakdown characteristics
•Vz; Applied E24 standard
APPLICATIONS
Circuits for Constant Voltage, Constant Current, Waveform
clipper, Surge absorber, etc.
MAXIMUM RATINGS (TA = 25 °C)
Power Dissipation P 150 mW
Forward Current IF100 mA
Reverse Surge Power PRSM 2.2 W
(at t = 10
µ
s/1 pulse)
Show Fig. 6
Junction Temperature Tj150 °C
Storage Temperature Tstg –55 to +150 °C
2.1±0.1
0.11+0.05
–0.01
1.3±0.1
0.3±0.05
0.8±0.1
Cathode
Indication
0.7±0.1
0.15
0±0.05
PACKAGE DIMENSIONS
(Unit: mm)
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.
RD4.7UJ to RD39UJ
2Data Sheet D13938EJ3V0DS00
ELECTRICAL CHARACTERISTICS (TA = 25 ± 2 °C)
Zener Voltage Reverse Current
Type Number Class Vz (V)Note 1 IR (
µ
A)
MIN. MAX. Iz (mA) MAX. Iz (mA) MAX. VR (V)
N 4.39 4.91
RD4.7UJ N1 4.39 4.62 0.5 800 0.5 2 1.0
N2 4.52 4.76
N3 4.66 4.91
N 4.81 5.36
RD5.1UJ N1 4.81 5.05 0.5 500 0.5 2 1.5
N2 4.95 5.20
N3 5.10 5.36
N 5.26 5.91
RD5.6UJ N1 5.26 5.54 0.5 200 0.5 1 2.5
N2 5.44 5.73
N3 5.63 5.91
N 5.81 6.53
RD6.2UJ N1 5.81 6.11 0.5 100 0.5 1 3.0
N2 6.01 6.32
N3 6.21 6.53
N 6.41 7.14
RD6.8UJ N1 6.41 6.74 0.5 60 0.5 0.5 3.5
N2 6.60 6.94
N3 6.80 7.14
N 7.00 7.83
RD7.5UJ N1 7.00 7.35 0.5 60 0.5 0.5 4.0
N2 7.21 7.60
N3 7.46 7.83
N 7.69 8.61
RD8.2UJ N1 7.69 8.08 0.5 60 0.5 0.5 5.0
N2 7.94 8.34
N3 8.20 8.61
N 8.47 9.51
RD9.1UJ N1 8.47 8.91 0.5 60 0.5 0.5 6.0
N2 8.76 9.21
N3 9.06 9.51
N 9.35 10.51
RD10UJ N1 9.35 9.82 0.5 60 0.5 0.1 7.0
N2 9.66 10.16
N3 10.00 10.51
N 10.32 11.50
RD11UJ N1 10.32 10.84 0.5 60 0.5 0.1 8.0
N2 10.64 11.17
N3 10.97 11.50
N 11.28 12.52
RD12UJ N1 11.28 11.83 0.5 80 0.5 0.1 9.0
N2 11.59 12.17
N3 11.93 12.52
N 12.29 13.86
RD13UJ N1 12.29 12.95 0.5 80 0.5 0.1 10.0
N2 12.72 13.40
N3 13.17 13.86
Dynamic
Impedance
Zz (Ω)Note 2
RD4.7UJ to RD39UJ
3Data Sheet D13938EJ3V0DS00
Zener Voltage Reverse Current
Type Number Class Vz (V)Note 1 IR (
µ
A)
MIN. MAX. Iz (mA) MAX. Iz (mA) MAX. VR (V)
N 13.63 15.38
RD15UJ N1 13.63 14.35 0.5 80 0.5 0.1 11
N2 14.12 14.85
N3 14.62 15.38
N 15.13 16.91
RD16UJ N1 15.13 15.87 0.5 80 0.5 0.1 12
N2 15.58 16.36
N3 16.07 16.91
N 16.63 18.81
RD18UJ N1 16.63 17.52 0.5 80 0.5 0.1 13
N2 17.24 18.15
N3 17.87 18.81
N 18.51 20.79
RD20UJ N1 18.51 19.42 0.5 100 0.5 0.1 15
N2 19.14 20.12
N3 19.80 20.79
N 20.46 22.82
RD22UJ N1 20.46 21.47 0.5 100 0.5 0.1 17
N2 21.09 22.15
N3 21.76 22.82
N 22.42 25.17
RD24UJ N1 22.42 23.59 0.5 120 0.5 0.1 19
N2 23.19 24.38
N3 23.98 25.17
N 24.75 27.95
RD27UJ N1 24.75 26.04 0.5 150 0.5 0.1 21
N2 25.56 26.96
N3 26.46 27.95
N 27.38 31.04
RD30UJ N1 27.38 29.00 0.5 200 0.5 0.1 23
N2 28.35 30.04
N3 29.37 31.04
N 30.30 33.97
RD33UJ N1 30.30 32.02 0.5 250 0.5 0.1 25
N2 31.21 32.98
N3 32.14 33.97
N 33.08 36.83
RD36UJ N1 33.08 34.92 0.5 300 0.5 0.1 27
N2 33.95 36.85
N3 34.87 36.83
N 35.78 39.67
RD39UJ N1 35.78 37.75 0.5 360 0.5 0.1 30
N2 36.63 38.69
N3 37.56 39.67
Note 1. Tested with pulse (40 ms)
2. Zz is measured at Iz by given a very small A.C. current signal
Dynamic
Impedance
Zz (Ω)Note 2
RD4.7UJ to RD39UJ
4Data Sheet D13938EJ3V0DS00
TYPICAL CHARACTERISTICS (TA = 25 °C)
Fig. 1 P – TA RATING
Fig. 2 Iz –Vz CHARACTERISTICS (a to d)
200
150
100
50
0 50 100 150 200
10×7.5×0.75
P.C.B. (Ceramic)
10×7.5×0.75
P.C.B. (Glass Epoxy)
20×15×0.75
P.C.B. (Ceramic)
30×30×0.75
P.C.B. (Ceramic)
T
A
- Ambient Temperature - °C
P - Power Dissipation - mW
100 m
10 m
1 m
100
10
100 m
10 m
1 m
100
10
3456789 9101112131415
V
z
- Zener Voltage - V
(a) V
z
- Zener Voltage - V
(b)
I
z
- Zener Current - A
I
z
- Zener Current - A
RD4.7UJ
RD5.1UJ
RD5.6UJ
RD8.2UJ
RD7.5UJ
RD6.8UJ
RD6.2UJ
RD9.1UJ
RD15UJ
RD13UJ
RD12UJ
RD11UJ
RD10UJ
µµ
µµ
RD4.7UJ to RD39UJ
5Data Sheet D13938EJ3V0DS00
Fig. 3
γ
z – Vz CHARACTERISTICS
100 m
10 m
1 m
100
10
100 m
10 m
1 m
100
10
16 18 20 22 24 26 28 36 38 40 42
V
z
- Zener Voltage - V
(c) V
z
- Zener Voltage - V
(d)
I
z
- Zener Current - A
I
z
- Zener Current - A
28 30 32 34 44
RD39UJ
RD36UJ
RD33UJ
RD30UJ
RD27UJ
RD24UJ
RD22UJ
RD20UJ
RD18UJ
RD16UJ
µ
µ
µ
µ
0.08
0.06
0.04
0.02
0
–0.02
–0.04
32
24
16
8
0
–8
–16
4 8 12 16 20 24 28 32 36 40
%/°C
mV/°C
VZ - Zener Voltage - V
γZ -VZ - Temperature Coefficient - %/°C
γZ -VZ - Temperature Coefficient - mV/°C
RD4.7UJ to RD39UJ
6Data Sheet D13938EJ3V0DS00
Fig. 4 TRANSIENT THERMAL IMPEDANCE CHARACTERISTIC
Fig. 5 SURGE REVERSE POWER RATINGS
t – Time – s
Z
th
– Transient Thermal Impedance – °C/W
1 m 10 m 100 m 1 10 100
1000
100
10
1
833 °C/W
P.C.B. (Glass Epoxy)
(30mm×30 mm×1.6mm)
t
T
– Pulse Width – s
P
RSM
– Surge Reverse Power – W
t
T
Repetitive
P
RSM
T
A
= 25 °C
1 10 100 1 m 10 m 100 m
1000
100
10
1
µµµ
RD4.7UJ to RD39UJ
7Data Sheet D13938EJ3V0DS00
[MEMO]
RD4.7UJ to RD39UJ
[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
this document.
•NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual
property rights of third parties by or arising from use of a device described herein or any other liability arising
from use of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights
or other intellectual property rights of NEC Corporation or others.
•Descriptions of circuits, software, and other related information in this document are provided for illustrative
purposes in semiconductor product operation and application examples. The incorporation of these circuits,
software, and information in the design of the customer's equipment shall be done under the full responsibility
of the customer. NEC Corporation assumes no responsibility for any losses incurred by the customer or third
parties arising from the use of these circuits, software, and information.
•While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices,
the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or
property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety
measures in its design, such as redundancy, fire-containment, and anti-failure features.
•NEC devices are classified into the following three quality grades:
"Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on a
customer designated “quality assurance program“ for a specific application. The recommended applications of
a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device
before using it in a particular application.
Standard: Computers, office equipment, communications equipment, test and measurement equipment,
audio and visual equipment, home electronic appliances, machine tools, personal electronic
equipment and industrial robots
Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster
systems, anti-crime systems, safety equipment and medical equipment (not specifically designed
for life support)
Specific: Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life
support systems or medical equipment for life support, etc.
The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books.
If customers intend to use NEC devices for applications other than those specified for Standard quality grade,
they should contact an NEC sales representative in advance.
M7 98.8
