®
1N5221B – 1N5261B
500mW ZENER DIODE
WON-TOP ELECTRONICS
Pb
Features
Planar Die Construction
500mW Power Dissipation
2.4V – 47V Nominal Zener Voltage
5% Standard Vz Tolerance
Low Inductance
For Use in Voltage Regulator or Reference
Plastic Case Material has UL Flammability
Classification Rating 94V-0
A
B
A
C
D
Mechanical Data
Case: DO-35, Molded Glass
Terminals: Plated Leads Solderable per
MIL-STD-202, Method 208
Polarity: Cathode Band
Weight: 0.13 grams (approx.)
Mounting Position: Any
Marking: Type Number
Lead Free: For RoHS / Lead Free Version,
Add “-LF” Suffix to Part Number, See Page 5
Dim
A
B
C
D
DO-35
Min
25.40
—
0.45
1.65
Max
—
3.80
0.55
1.95
All Dimensions in mm
Maximum Ratings
@T
A
=25°C unless otherwise specified
Characteristic
Power Dissipation at T
A
= 25°C (Note 1)
Forward Voltage @ I
F
= 200mA
Thermal Resistance Junction to Ambient (Note 2)
Operating and Storage Temperature Range
Symbol
P
D
V
F
R
θJA
T
J
, T
STG
Value
500
1.1
300
-65 to +175
Unit
mW
V
°C/W
°C
Note: 1. Measured at lead length 3/8” (9.5mm) from body.
2. Valid provided that leads are kept at ambient temperature at a distance of 10mm from the case.
© Won-Top Electronics Co., Ltd.
Revision: October, 2015
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1
®
1N5221B – 1N5261B
WON-TOP ELECTRONICS
0.5
40
T
J
= 25°C
Measured at lead length
9.5mm from case.
2V4
2V7
3V0
3V3
3V6
3V9
4V3
4V7
5V1
5V6 6V8
6V2
7V5
8V2
9V1
P
D
, POWER DISSIPATION (W)
I
Z
, ZENER CURRENT (mA)
0.4
30
0.3
20
0.2
10
0.1
0
0
35
70
105
140
175
T
A
, AMBIENT TEMPERATURE (°C)
Fig. 1 Power Derating Curve
210
0
0
1
3
4
5
6
7
8
9
V
Z
, ZENER VOLTAGE (V)
Fig. 2 Zener Breakdown Characteristics
2
10
25
Test Current I
Z
10
12
15
18
T
J
= 25°C
10
39
47
43
T
J
= 25°C
I
Z
, ZENER CURRENT (mA)
15
22
27
I
Z
, ZENER CURRENT (mA)
20
8
6
36
5
Test Current I
Z
33
2
0
0
5
15 20 25 30 35 40 45
V
Z
, ZENER VOLTAGE (V)
Fig. 3 Zener Breakdown Characteristics
10
50
0
0
10
30 40 50 60 70 80 90 100
V
Z
, ZENER VOLTAGE (V)
Fig. 4 Zener Breakdown Characteristics
20
I
F
, INSTANTANEOUS FORWARD CURRENT (mA)
1000
C
J
, JUNCTION CAPACITANCE (pF)
1000
T
J
= 25°C
f = 1MHz
100
@ 0V Bias
T
J
= 100°C
100
@ 1V Bias
10
T
J
= 25°C
1
0
1.0
0.4
0.6
0.8
V
F
, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 5 Typical Forward Characteristics
10
10
100
V
Z
, NOMINAL ZENER VOLTAGE (V)
Fig. 6 Junction Capacitance vs. Nominal Zener Voltage
© Won-Top Electronics Co., Ltd.
Revision: October, 2015
1
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2
Test Current I
Z
10
4
Test Current I
Z
Test Current I
Z
®
1N5221B – 1N5261B
WON-TOP ELECTRONICS
Electrical Characteristics (@T
A
=25°C unless otherwise specified) Table 1
Type
Number
(Note 1)
Nominal Zener
Voltage (Note 2)
V
Z
@ I
ZT
(V)
1N5221B
1N5222B
1N5223B
1N5224B
1N5225B
1N5226B
1N5227B
1N5228B
1N5229B
1N5230B
1N5231B
1N5232B
1N5233B
1N5234B
1N5235B
1N5236B
1N5237B
1N5238B
1N5239B
1N5240B
1N5241B
1N5242B
1N5243B
1N5244B
1N5245B
1N5246B
1N5247B
1N5248B
1N5249B
1N5250B
1N5251B
1N5252B
1N5253B
1N5254B
1N5255B
1N5256B
1N5257B
1N5258B
1N5259B
1N5260B
1N5261B
2.4
2.5
2.7
2.8
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
14
15
16
17
18
19
20
22
24
25
27
28
30
33
36
39
43
47
Test
Current
I
ZT
(mA)
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
9.5
9.0
8.5
7.8
7.4
7.0
6.6
6.2
5.6
5.2
5.0
4.6
4.5
4.2
3.8
3.4
3.2
3.0
2.7
Z
ZT
@ I
ZT
(Ω)
30
30
30
30
29
28
24
23
22
19
17
11
7.0
7.0
5.0
6.0
8.0
8.0
10
17
22
30
13
15
16
17
19
21
23
25
29
33
35
41
44
49
58
70
80
93
105
Maximum Zener Impedance
(Note 3)
Z
ZK
@ I
ZK
(Ω)
1200
1250
1300
1400
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
600
600
600
600
700
700
800
900
1000
I
ZK
(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
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Maximum Reverse
Leakage Current
I
R
(µA)
100
100
75
75
50
25
15
10
5.0
5.0
5.0
5.0
5.0
5.0
3.0
3.0
3.0
3.0
3.0
3.0
2.0
1.0
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
0.1
0.1
0.1
0.1
0.1
0.1
@ V
R
(V)
1.0
1.0
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
10
11
12
13
14
14
15
17
18
19
21
21
23
25
27
30
33
36
Typical Temp.
Coefficient of Zener
Voltage
αV
Z
@ I
ZT
(%/°C)
-0.085
-0.085
-0.080
-0.080
-0.075
-0.070
-0.065
-0.060
-0.055
±0.030
±0.030
+0.038
+0.038
+0.045
+0.050
+0.058
+0.062
+0.065
+0.068
+0.075
+0.076
+0.077
+0.079
+0.082
+0.082
+0.083
+0.084
+0.085
+0.086
+0.086
+0.087
+0.087
+0.089
+0.090
+0.091
+0.091
+0.092
+0.093
+0.094
+0.095
+0.095
Note: 1. Type numbers listed have standard tolerance on the nominal zener voltage of ±5%.
2. Measured under thermal equilibrium and DC (I
ZT
) test conditions.
3. f = 1KHz
© Won-Top Electronics Co., Ltd.
Revision: October, 2015
www.wontop.com
3
®
1N5221B – 1N5261B
WON-TOP ELECTRONICS
MARKING INFORMATION
TAPING SPECIFICATIONS
0.8mm
MAX
52
x xB
5mm
1.2mm
MAX
Cathode
52xxB
= Polarity Band
= Device Number
6mm
52.4mm
Cathode Tape: Red
Anode Tape: White
0.8mm
MAX
PACKAGING INFORMATION
TAPE & BOX
Product ID Label
TAPE & REEL
75mm
Inspection Hole
(both ends)
330mm
255mm
75mm
BULK
80±5mm
21mm
196mm
Product ID Label
83mm
Packaging
TAPE & REEL
TAPE & BOX
BULK
Reel Diameter /
Box Size (mm)
330
255 x 75 x 75
196 x 83 x 21
Quantity
(PCS)
5,000
5,000
2,000
Carton Size
(mm)
370 x 370 x 420
410 x 335 x 265
410 x 335 x 265
Quantity
(PCS)
25,000
100,000
100,000
Approx. Gross Weight
(KG)
8.5
15.5
14.5
Note:
1. Paper reel, white or gray color. Core material: plastic or metal.
2. Components are packed in accordance with EIA standard RS-296-E.
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© Won-Top Electronics Co., Ltd.
Revision: October, 2015
®
1N5221B – 1N5261B
WON-TOP ELECTRONICS
ORDERING INFORMATION
Product No.
1N52xxB-T3
1N52xxB-TB
1N52xxB
1.
2.
3.
Package Type
DO-35
DO-35
DO-35
Shipping Quantity
5000/Tape & Reel
5000/Tape & Box
2000 Units/Box
Products listed in
bold
are WTE
Preferred
Devices
Shipping quantity given is for minimum packing quantity only. For minimum
order quantity, please consult the Sales Department.
To order RoHS / Lead Free version (with Lead Free finish), add “-LF”
suffix to part number above. For example, 1N5221B-TB-LF.
WON-TOP ELECTRONICS and
are registered trademarks of Won-Top Electronics Co., Ltd (WTE). WTE has checked all information carefully and
believes it to be correct and accurate. However, WTE cannot assume any responsibility for inaccuracies. Furthermore, this information does not give the
purchaser of semiconductor devices any license under patent rights to manufacturer. WTE reserves the right to change any or all information herein
without further notice.
WARNING:
DO NOT USE IN LIFE SUPPORT EQUIPMENT. WTE power semiconductor products are not authorized for use as critical components in life
support devices or systems without the express written approval.
Won-Top Electronics Co., Ltd.
No. 44 Yu Kang North 3rd Road,
Chine Chen Dist., Kaohsiung 806, Taiwan
Phone:
886-7-822-5408 or 886-7-822-5410
Fax:
886-7-822-5417
Email:
sales@wontop.com
Internet:
http://www.wontop.com
We power your everyday.
© Won-Top Electronics Co., Ltd.
Revision: October, 2015
www.wontop.com
5
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