DIODS BZX84C51, BZX84C47, BZX84C43 Datasheet
Features
· Planar Die Construction
· 350mW Power Dissipation
· Zener Voltages from 43V - 51V
· Ideally Suited for Automated Assembly
Processes
Mechanical Data
· Case: SOT-23, Molded Plastic
· Case material - UL Flammability Rating 94V-0
· Moisture sensitivity: Level 1 per J-STD-020A
· Terminals: Solderable per MIL-STD-202,
Method 208
· Polarity: See Diagram
· Marking: Marking Code (See Table on Page 2)
· Weight: 0.008 grams (approx.)
BZX84C43 - BZX84C51
350mW SURFACE MOUNT ZENER DIODE
SOT-23
Dim Min Max
A
0.37 0.51
B
1.20 1.40
C
2.30 2.50
D
0.89 1.03
E
0.45 0.60
G
1.78 2.05
H
2.80 3.00
J
0.013 0.10
K
0.903 1.10
L
0.45 0.61
M
0.085 0.180
a
All Dimensions in mm
0° 8°
E
TOP VIEW
G
H
A
B
C
D
K
J
L
M
Maximum Ratings
Characteristic Symbol Value Unit
Forward Voltage @ IF = 10mA
Power Dissipation (Note 1)
Thermal Resistance, Junction to Ambient Air (Note 1)
Operating and Storage Temperature Range
Notes: 1. Device mounted on FR-4 PC board with recommended pad layout, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
@ TA = 25°C unless otherwise specified
R
T
j,TSTG
V
F
P
d
qJA
0.9 V
350 mW
357 °C/W
-65 to +150 °C
DS30370 Rev. 1 - 2 1 of 3 BZX84C43 - BZX84C51
www.diodes.com
Electrical Characteristics
00
10
100
@ TA = 25°C unless otherwise specified
Zener Voltage
Range
VZ @ I
(Note 2)
ZT
ZZT @
I
ZT
I
Type
Number
Marking
Code
Nom (V) Min (V) Max (V) (mA) (W)(W) (mA) (mA) (V)
BZX84C43
BZX84C47
BZX84C51
Y15/KYF 43 40.0 46.0 2.0 150 375 0.5 0.1 30.1 10.0 12.0
Y16/KYG 47 44.0 50.0 2.0 170 375 0.5 0.1 32.9 10.0 12.0
Y17/KYH 51 48.0 54.0 2.0 180 400 0.5 0.1 35.7 10.0 12.0
Notes: 2. Short duration test pulse used to minimize self-heating effect.
3. f = 1KHz.
5
See Note 1
400
300
Maximum Zener
Impedance
(Note 3)
ZT
ZZK@I
8
6
ZK
Tj = 25°C
Maximum Reverse
Current
(Note 2)
C43
C47
V
C51
R
I
R
Typical Temperature
Coefficient
@I
ZT
mV/°C
Min Max
d
P , POWER DISSIPATION (mW)
200
100
0
0
T , Ambient Temperature, (°C)
A
100
Fig. 1 Power DeratingCurve
T = 25°C
j
f = 1MHz
V=1V
R
T
C , TOTAL CAPACITANCE (pF)
10
1
10
V , NOMINAL ZENER VOLTAGE (V)
Z
V=2V
R
Fig. 3 Total Capacitance vs Nominal Zener Voltage
200
100
Z
I , ZENER CURRENT (mA)
4
Test Current I
2mA
Z
2
0
10 20 30 40 50 60 70 80 90 100
V , ZENER VOLTAGE (V)
Z
Fig. 2 Zener Breakdown Characteristics
DS30370 Rev. 1 - 2 2 of 3 BZX84C43 - BZX84C51
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