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Features
Ultra-Small Surface Mount Package
Planar Die Construction
Lead Free/RoHS Compliant (Note 2)
"Green" Device (Note 3 and 4)
BZX84C2V4T - BZX84C39T
150mW SURFACE MOUNT ZENER DIODE
Mechanical Data
Case: SOT-523
Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020D
Terminals: Solderable per MIL-STD-202, Method 208
Lead Free Plating (Matte Tin Finish annealed over Alloy 42
leadframe).
Polarity: See Diagram
Marking Information: See Page 3
Ordering Information: See Page 3
Weight: 0.002 grams (approximate)
Top View
Maximum Ratings @TA = 25°C unless otherwise specified
Forward Voltage
Characteristic
@ IF = 10mA
Device Schematic
Symbol
VF
Value
0.9
Unit
V
Thermal Characteristics
Characteristic
Power Dissipation
Thermal Resistance, Junction to Ambient Air
Operating and Storage Temperature Range
(Note 1)
(Note 1)
Symbol
PD
RθJA
TJ, TSTG
Value
150
833
-65 to +150
Unit
mW
°C/W
°C
Notes:
1. Device mounted on FR-4 PC board with recommended pad layout at http://www.diodes.com/datasheets/ap02001.pdf.
2. No purposefully added lead.
3. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
4. Product manufactured with Date Code UO (week 40, 2007) and newer are built with Green Molding Compound. Product manufactured prior to Date
Code UO are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
BZX84C2V4T - BZX84C39T
Document number: DS30262 Rev. 10 - 2
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May 2008
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BZX84C2V4T - BZX84C39T
Electrical Characteristics @TA = 25°C unless otherwise specified
Type
Number
Marking
Code
Zener Voltage
Range (Note 5)
VZ @ IZT
IZT
Nom (V) Min (V) Max (V) mA
BZX84C2V4T RB 2.4 2.2 2.6 5.0
BZX84C2V7T RC 2.7 2.5 2.9 5.0
BZX84C3V0T RD 3.0 2.8 3.2 5.0
BZX84C3V3T RE 3.3 3.1 3.5 5.0
BZX84C3V6T RF 3.6 3.4 3.8 5.0
BZX84C3V9T RG
3.9
3.7
4.1 5.0
BZX84C4V3T RH 4.3 4.0 4.6 5.0
BZX84C4V7T R1 4.7 4.4 5.0 5.0
BZX84C5V1T R2 5.1 4.8 5.4 5.0
BZX84C5V6T R3 5.6 5.2 6.0 5.0
BZX84C6V2T R4 6.2 5.8 6.6 5.0
BZX84C6V8T R5 6.8 6.4 7.2 5.0
BZX84C7V5T R6 7.5 7.0 7.9 5.0
BZX84C8V2T R7 8.2 7.7 8.7 5.0
BZX84C9V1T R8 9.1 8.5 9.6 5.0
BZX84C10T
R9
10
9.4 10.6 5.0
BZX84C11T
P1
11 10.4 11.6 5.0
BZX84C12T
P2
12 11.4 12.7 5.0
BZX84C13T
P3
13 12.4 14.1 5.0
BZX84C15T
P4
15 13.8 15.6 5.0
BZX84C16T
P5
16 15.3 17.1 5.0
BZX84C18T
P6
18 16.8 19.1 5.0
BZX84C20T
P7
20 18.8 21.2 5.0
BZX84C22T
P8
22 20.8 23.3 5.0
BZX84C24T
P9
24 22.8 25.6 5.0
BZX84C27T
PA
27 25.1 28.9 2.0
BZX84C30T
PB
30.0 28.0 32.0 2.0
BZX84C33T
PC
33.0 31.0 35.0 2.0
BZX84C36T
PD
36.0 34.0 38.0 2.0
BZX84C39T
PE
39.0 37.0 41.0 2.0
Notes:
5. Short duration pulse test used to minimize self-heating effect.
6. f = 1KHz.
Maximum Zener Impedance
(Note 6)
ZZT @ IZT ZZK @ IZK
Ω
100 600
100 600
95 600
95 600
90 600
90 600
90 600
80 600
60 500
40 480
10 400
15 150
15 80
15 80
15 80
20 100
20 150
25 150
30 150
30 170
40 200
45 200
55 225
55 225
70 250
80 250
80 300
80 300
90 325
130 350
IZK
mA
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.5
0.5
0.5
0.5
0.5
Maximum
Reverse Current
(Note 5)
IR @VR
uA V
50 1.0
20 1.0
20 1.0
5.0 1.0
5.0 1.0
3.0 1.0
3.0 1.0
3.0 2.0
2.0 2.0
1.0 2.0
3.0 4.0
2.0 4.0
1.0 5.0
0.7 5.0
0.5 6.0
0.2 7.0
0.1 8.0
0.1 8.0
0.1 8.0
0.1 10.5
0.1 11.2
0.1 12.6
0.1 14.0
0.1 15.4
0.1 16.8
0.1 18.9
0.1 21.0
0.1 23.1
0.1 25.2
0.1 27.3
Temperature
Coefficient of
Zener Voltage
@ IZT = 5mA
(mV/°C)
Min Max
-3.5 0
-3.5 0
-3.5 0
-3.5 0
-3.5 0
-3.5 0
-3.5 0
-3.5 0.2
-2.7 1.2
-2.0 2.5
0.4 3.7
1.2 4.5
2.5 5.3
3.2 6.2
3.8 7.0
4.5 8.0
5.4 9.0
6.0 10.0
7.0 11.0
9.2 13.0
10.4 14.0
12.4 16.0
14.4 18.0
16.4 20.0
18.4 22.0
21.4 25.3
24.4 29.4
27.4 33.4
30.4 37.4
33.4 41.2
250
200
150
100
50
0
0
100
TA, AMBIENT TEMPERATURE, °C
Fig. 1. Power Derating Curve
200
50
40
30
20
10
0
0 1 2 3 4 5 6 7 8 9 10
VZ, ZENER VOLTAGE (V)
Fig. 2 Typical Zener Breakdown Characteristics
BZX84C2V4T - BZX84C39T
Document number: DS30262 Rev. 10 - 2
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30 TJ = 25°C C10
C12
20 C15
10
Test current IZ
5mA
C18
C22
C27
C33
C39
C36
BZX84C2V4T - BZX84C39T
1,000
100
0
0 10 20 30 40
VZ, ZENER VOLTAGE (V)
Fig. 3. Typical Zener Breakdown Characteristics
10
1 10 100
VZ, NOMINAL ZENER VOLTAGE (V)
Fig. 4. Typical Total Capacitance vs. Nominal Zener Voltage
Ordering Information (Note 7)
Part Number
(Type Number)-7-F*
Case
SOT-523
Packaging
3000/Tape & Reel
*Add “-7-F” to the appropriate type number in Electrical Characteristics Table on page 2 example: 6.2V Zener = BZX84C6V2T-7-F.
Notes: 7. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information
Date Code Key
Year
Code
Month
Code
xxx YM
xxx = Product Type Marking Code
(See Electrical Characteristics Table)
YM = Date Code Marking
Y = Year (ex: N = 2002)
M = Month (ex: 9 = September)
2002
N
Jan
1
2003
P
Feb
2
2004
R
Mar
3
2005
S
2006
T
2007
U
2008
V
2009
W
Apr May Jun
456
Jul Aug Sep
78
9
2010
X
Oct
O
2111
Y
Nov
N
2012
Z
Dec
D
Package Outline Dimensions
A
TOP VIEW B C
G
H
K
N
J
DL
M
SOT-523
Dim Min Max Typ
A 0.15 0.30 0.22
B 0.75 0.85 0.80
C 1.45 1.75 1.60
D ⎯ ⎯ 0.50
G 0.90 1.10 1.00
H 1.50 1.70 1.60
J 0.00 0.10 0.05
K 0.60 0.80 0.75
L 0.10 0.30 0.22
M 0.10 0.20 0.12
N 0.45 0.65 0.50
α 0° 8°
All Dimensions in mm
BZX84C2V4T - BZX84C39T
Document number: DS30262 Rev. 10 - 2
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May 2008
© Diodes Incorporated

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Suggested Pad Layout
Y
Z
C
XE
BZX84C2V4T - BZX84C39T
Dimensions
Z
X
Y
C
E
Value (in mm)
1.8
0.4
0.51
1.3
0.7
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product
described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall
assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website,
harmless against all damages.
LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written
approval of the President of Diodes Incorporated.
BZX84C2V4T - BZX84C39T
Document number: DS30262 Rev. 10 - 2
4 of 4
www.diodes.com
May 2008
© Diodes Incorporated