AZD27C21
VOLTAGE REGULATOR ZENER DIODES
VOLTAGE
21 Volts
POWER
1 Watt
FEATURES
0.075(1.90)
0.067(1.70)
• Sillicon Planar Zener Diode
• 1000mW Power Dissipation
• Zener and surge current specification
• Low leakage current
• Excellent stability
• Lead free in comply with EU RoHS 2002/95/EC directives.
• Green molding compound as per IEC61249 Std. . (Halogen Free)
0.145(3.70)
0.137(3.50)
0.115(2.90)
0.106(2.70)
MECHANICAL DATA
• Case: SOD-123FL, Molded Plastic
• Terminals: Solderable per MIL-STD-750, Method 2026
• Polarity: See Diagram Below
• Approx. Weight: 0.0006 ounces, 0.0173 grams
0.030(0.75)
0.017(0.45)
1
2
C a tho d e
A n od e
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS (T
A
=25 C unless otherwise noted)
Parameter
Forward Voltage at 0.2A
Power Dissipation
Typical Thermal Resistance , Junction to Ambient
Operating Junction Temperature and Storage Temperature Range
Symbol
V
F
P
D
R
JA
T
J
,T
STG
Value
1.2
1
200
-55 to +150
O
o
0.008(0.20)
0.004(0.10)
0.044(1.10)
0.031(0.80)
0.043(1.08)
0.038(0.98)
Units
V
W
C/W
O
C
Nominal Zener Voltage
Part Number
Nom. V
AZD27C21
21
V
Z
@I
ZT
Min. V
20.0
Max. V
22.4
15
Max. Zener Impedance
Z
ZT
@I
ZT
mA
20
750
Z
ZK
@I
ZK
mA
0.25
Max Reverse
Leakage Current
I
R
@V
R
A
10
V
15
C21
Marking
Code
NOTES:
1. Mounted on an FR4 PCB, single-sided copper, mini pad.
July 26,2012-REV.00
PAGE . 1
AZD27C21
RATING AND CHARACTERISTIC CURVES
P
D
, Power Dissipation (mW)
C
J
, Junction Capacitance (pF)
1200
1000
800
600
400
200
0
0
25
50
75
100
125
150
1000
100
10
1
0.1
1
10
100
T
A
, Ambient Temperature (°C)
V
R
, Reverse Bias Voltage (V)
Fig.1 Power Derating Curve
Fig.2 Typical Junction Capacitance
I
R
, Leakage Current (nA)
180
160
140
120
100
80
60
40
20
0
0
T
J
= 25°C
I
F
, Forward Current (A)
200
1
T
J
= 150°C
0.1
T
J
= 125°C
T
J
= 75°C
T
J
= 25°C
0.01
0.4
0.5
0.6
0.7
0.8
0.9
1
5
10
15
20
25
V
R
, Reverse Voltage (V)
V
F
, Forward Voltage (V)
a
Fig.3 Typical Leakage Characteristics
Fig.4 Typical Forward Characteristics
I
Z
, Zener Current (mA)
s
Z
, TEMPERATURE
COEFFICIENT(mV/°C)
50
45
40
35
30
25
20
15
10
5
0
0
100
T
J
= 25°C
T
J
= 25 to 150 °C
10
1
5
10
15
20
25
0.1
1
10
100
V
Z
, Zener Voltage (V)
I
Z
, Zener Current (mA)
Fig.5 Typical Zener Characteristics
Fig.6
Temperature coefficient as a function of
working current; typical values.
PAGE . 2
July 26,2012-REV.00
AZD27C21
MOUNTING PAD LAYOUT
SOD-123FL
Unit
：
inch(mm)
0.167
(4.25)
0.106
(2.70)
0.031
(0.78)
ORDER INFORMATION
• Packing information
T/R - 10K per 13" plastic Reel
T/R - 3K per 7” plastic Reel
July 26,2012-REV.00
PAGE . 3
AZD27C21
Part No_packing code_Version
AZD27C21_R1_00001
AZD27C21_R2_00001
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
July 26,2012-REV.00
PAGE . 4
AZD27C21
Disclaimer
Reproducing and modifying information of the document is prohibited without
permission from Panjit International Inc..
Panjit International Inc. reserves the rights to make changes of the content herein the
document anytime without notification. Please refer to our website for the latest
document.
Panjit International Inc. disclaims any and all liability arising out of the application or
use of any product including damages incidentally and consequentially occurred.
Panjit International Inc. does not assume any and all implied warranties, including
warranties of fitness for particular purpose, non-infringement and merchantability.
Applications shown on the herein document are examples of standard use and
operation. Customers are responsible in comprehending the suitable use in particular
applications. Panjit International Inc. makes no representation or warranty that such
applications will be suitable for the specified use without further testing or modification.
The products shown herein are not designed and authorized for equipments requiring
high level of reliability or relating to human life and for any applications concerning
life-saving or life-sustaining, such as medical instruments, transportation equipment,
aerospace machinery et cetera. Customers using or selling these products for use in
such applications do so at their own risk and agree to fully indemnify Panjit
International Inc. for any damages resulting from such improper use or sale.
July 26,2012-REV.00
PAGE .
5
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