CYStech Electronics Corp.
200mW SOD-323 Zener Voltage Regulators
Spec. No. : C326S2-C
Issued Date : 2009.02.16
Revised Date :2013.09.27
Page No. : 1/7
ZD5221BS2 thru ZD5259BS2
Description
The ZD5221BS2 series zener diodes are packaged in a SOD-323 surface mount package that has a power dissipation
of 200mW. They are designed to provide voltage regulation protection and are especially attractive in situations
where space is at a premium. They are well suited for applications such as cellular phones, hand held portables, and
high density PC boards.
Features
•
Standard zener breakdown voltage range : 2.4V to 39V
•
Steady state power rating of 200mW..
•
Small body outline dimensions
•
Low body height : 0.035 inches (0.9mm) max.
Mechanical Data
•
Case : SOD-323 , molded plastic
•
Terminals : Solderable per MIL-STD-750 method 2026
•
Polarity : Cathode indicated by polarity band.
•
Flammability rating : UL94 V-0
•
Package weight : approx. 4.507 mg/unit
•
Mounting position : Any
Ordering Information
Device
ZD52XXBS2-0-T1-G
Package
SOD-323
(Pb-free lead plating and halogen-free package)
Shipping
3000 pcs / tape & reel
Environment friendly grade : S for RoHS compliant products, G for RoHS compliant and
green compound products
Packing spec, T1 : 3000 pcs / tape & reel, 7” reel
Product rank, zero for no rank products
Product name
ZD5221BS2 series
CYStek Product Specification
CYStech Electronics Corp.
Symbol
Outline
Spec. No. : C326S2-C
Issued Date : 2009.02.16
Revised Date :2013.09.27
Page No. : 2/7
-
+
SOD-323
Absolute Maximum Ratings
(Ta=25℃, unless otherwise specified)
•
Maximum Temperatures
Storage Temperature Tstg.................................................................................................... -65~+150
°C
Junction Temperature Tj………………………………………………………………….. -65~ +150
°C
•
Maximum Power Dissipation
Total Power Dissipation Ptot
(Note 1)
........................................................................................ 200 mW
•
Thermal Resistance, Junction to Ambient Air R
θJA
……………………………………….…….625℃/W
•
Thermal Resistance, Junction toCase R
θJC
……………………………………….……………..400℃/W
Note 1: Parts mounted on ceramic board with area of 25mm².
Electrical Characteristics
(T
A
=25℃ unless otherwise noted, V
F
=0.9V Max @I
F
=10mA for all types.)
Symbol
V
Z
I
ZT
Z
ZT
I
ZK
Z
ZK
I
R
V
R
Reverse current
Maximum zener impedance @ I
ZT
Reverse current
Maximum zener impedance @ I
ZK
Reverse leakage current @ V
R
Reverse voltage
Parameter
Reverse zener voltage @ I
ZT
ZD5221BS2 series
CYStek Product Specification
CYStech Electronics Corp.
Zener voltage(
Note 2
)
Device
Marking
Code
min
2.28
2.57
2.85
3.14
3.42
3.71
4.09
4.47
4.85
5.32
5.70
5.89
6.46
7.13
7.79
8.27
8.65
9.50
10.45
11.40
12.35
14.25
15.20
17.10
19.00
20.90
22.80
25.65
26.60
28.50
31.35
34.20
37.05
V
Z
(volts)
nom
2.4
2.7
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.0
6.2
6.8
7.5
8.2
8.7
9.1
10
11
12
13
15
16
18
20
22
24
27
28
30
33
36
39
max
2.52
2.84
3.15
3.47
3.78
4.10
4.52
4.94
5.36
5.88
6.30
6.51
7.14
7.88
8.61
9.14
9.56
10.50
11.55
12.60
13.65
15.75
16.80
18.90
21.00
23.10
25.20
28.35
29.40
31.50
34.65
37.80
40.95
@I
ZT
mA
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
9.5
8.5
7.8
7.0
6.2
5.6
5.2
5.0
4.5
4.2
3.8
3.4
3.2
Maximum Zener
impedance
Z
ZT
@
I
ZT
Ω
30
30
30
28
24
23
22
19
17
11
7
7
5
6
8
8
10
17
22
30
13
16
17
21
25
29
33
41
44
49
58
70
80
Z
ZK
@I
ZK
Ω
1200
1300
1600
1600
1700
1900
2000
1900
1600
1600
1600
1000
750
500
500
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
700
700
800
Spec. No. : C326S2-C
Issued Date : 2009.02.16
Revised Date :2013.09.27
Page No. : 3/7
Maximum
Reverse Leakage
Current
I
R
@V
R
μA
100
75
50
25
15
10
5
5
5
5
5
5
3
3
3
3
3
3
2
1
0.5
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
V
1.0
1.0
1.0
1.0
1.0
1.0
1.0
2.0
2.0
3.0
3.5
4.0
5.0
6.0
6.5
6.5
7.0
8.0
8.4
9.1
9.9
11
12
14
15
17
18
21
21
23
25
27
30
ZD5221B
ZD5223B
ZD5225B
ZD5226B
ZD5227B
ZD5228B
ZD5229B
ZD5230B
ZD5231B
ZD5232B
ZD5233B
ZD5234B
ZD5235B
ZD5236B
ZD5237B
ZD5238B
ZD5239B
ZD5240B
ZD5241B
ZD5242B
ZD5243B
ZD5245B
ZD5246B
ZD5248B
ZD5250B
ZD5251B
ZD5252B
ZD5254B
ZD5255B
ZD5256B
ZD5257B
ZD5258B
ZD5259B
C1
C3
C5
G1
G2
G3
G4
G5
E1
E2
E3
E4
E5
F1
F2
F3
F4
F5
H1
H2
H3
H5
J1
J3
J5
K1
K2
K4
K5
M1
M2
M3
M4
mA
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Note 2: Zener voltage is measured with a pulse test current I
Z
at an ambient temperature of 25℃.
ZD5221BS2 series
CYStek Product Specification
CYStech Electronics Corp.
Recommended Footprint
Spec. No. : C326S2-C
Issued Date : 2009.02.16
Revised Date :2013.09.27
Page No. : 4/7
mm
inch
ZD5221BS2 series
CYStek Product Specification
CYStech Electronics Corp.
Reel Dimension
Spec. No. : C326S2-C
Issued Date : 2009.02.16
Revised Date :2013.09.27
Page No. : 5/7
Carrier Tape Dimension
ZD5221BS2 series
CYStek Product Specification
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