1SMB5920B – 1SMB5956B
NEW PRODUCT
3.0W SURFACE MOUNT POWER ZENER DIODE
Features
• 3.0W Power Dissipation
• Ideally Suited for Autom ated Assembly
• 6.2V - 200V Nominal Zener Voltage Range
• Standard VZ Tolerance is ±5%
• ESD Rating of Class 3 (>16kV) per Human Body Model
• Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
Mechanical Data
• Case: SMB
• Case Material: Molded Plast ic.
UL Flammabilit y Classification Rating 94V-0
• Moisture Sensitivi t y: Level 1 per J-STD-020
• Copper Alloy Leadfram e with Lead-Free Plat i ng (Matte Tin
Finish). Solderable per MIL-STD-202, Method 208
• Polarity: Cathode Band
• Weig ht: 0.096 grams (Approximate)
SMB
Ordering Information (Note 4)
Device*
Packaging
Shipping
1SMB59xxB-13
SMB
3000/Tape & Reel
*x = Device Voltage, e.g., 1SMB5920B-13.
Notes: 1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Ant imony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. For packaging details, go to our website at http”//www.diodes.com/products/packages.html.
Marking Information
SMB
Top View
Bottom View
B9xx = Product Type Marking Code
(See Electric Charact eristics Table)
= Manufacturers’ Code Marking
YWW = Date Code Marking
Y = Last Digit of Year (ex: 4 for 2014)
WW = Week Code (01 - 53)
YWW
B9xx
1SMB5920B – 1SMB5956B
Document number: DS32125 Rev. 8 - 2 1 of 7
www.diodes.com May 2019
© Diodes Incorporated
1SMB5920B – 1SMB5956B
NEW PRODUCT
Maximum Ratings (@TA = +25°C, unless otherwise s pecified.)
Characteristic
Symbol
Value
Unit
Forward Voltage @ IF = 200mA
VF
1.5
V
Zener Current (See Page 3)
IZM
PD / VZ
mA
Thermal Characteristics
Characteristic
Symbol
Value
Unit
Power Dissipation @T
L
= +75°C
Derate Above +75°C (Note 5)
PD
3.0
40
W
mW/°C
Thermal Resistanc e - Junction to Terminal (Note 5)
RϴJT
25
°C/W
Power Dissipation @T
A
= +25°C
Derate Above +25°C (Note 5)
PD
550
4.4
mW
mW/°C
Thermal Resistanc e - Junction to Ambient (Note 5)
RϴJA
226
°C/W
Operating and Storage Tem perature Range
TJ, TSTG
-65 to +150
°C
Note: 5. Device mounted on FR-4 PCB; pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com.
1SMB5920B – 1SMB5956B
Document number: DS32125 Rev. 8 - 2 2 of 7
www.diodes.com May 2019
© Diodes Incorporated
1SMB5920B – 1SMB5956B
NEW PRODUCT
Electrical Characteristics (@TA = +25°C, unless otherwise s pecified.)
Type
Number Marking
Code
Zener Voltage
Range (Note 6) Test
Current Maximum Zener Impedance
(Note 7)
Maximum
Reverse
Current (Note 6)
IZM Max
VZ @ IZT IZT ZZT @ IZT ZZK @ IZK IR @ VR
Mi n (V)
Typ (V)
M ax (V)
mA
Ω
Ω
mA
µA
V
mA
1SMB5920B
B920
5.89
6.2
6.51
60.5
2
200
1
5
4
241
1SMB5921B
B921
6.46
6.8
7.14
55.1
2.5
200
1
5
5.2
220
1SMB5922B
B922
7.12
7.5
7.88
50
3
400
0.5
5
6
200
1SMB5923B
B923
7.79
8.2
8.61
45.7
3.5
400
0.5
5
6.5
182
1SMB5924B
B924
8.64
9.1
9.56
41.2
4
500
0.5
5
7
164
1SMB5925B
B925
9.5
10
10.5
37.5
4.5
500
0.25
5
8
150
1SMB5926B
B926
10.45
11
11.55
34.1
5.5
550
0.25
1
8.4
136
1SMB5927B
B927
11.4
12
12.6
31.2
6.5
550
0.25
1
9.1
125
1SMB5928B
B928
12.35
13
13.65
28.8
7
550
0.25
1
9.9
115
1SMB5929B
B929
14.25
15
15.75
25
9
600
0.25
1
11.4
100
1SMB5930B
B930
15.2
16
16.8
23.4
10
600
0.25
1
12.2
93
1SMB5931B
B931
17.1
18
18.9
20.8
12
650
0.25
1
13.7
83
1SMB5932B
B932
19
20
21
18.7
14
650
0.25
1
15.2
75
1SMB5933B
B933
20.9
22
23.1
17
17.5
650
0.25
1
16.7
68
1SMB5934B
B934
22.8
24
25.2
15.6
19
700
0.25
1
18.2
62
1SMB5935B
B935
25.65
27
28.35
13.9
23
700
0.25
1
20.6
55
1SMB5936B
B936
28.5
30
31.5
12.5
28
750
0.25
1
22.8
50
1SMB5937B
B937
31.35
33
34.65
11.4
33
800
0.25
1
25.1
45
1SMB5938B
B938
34.2
36
37.8
10.4
38
850
0.25
1
27.4
41
1SMB5939B
B939
37.05
39
40.95
9.6
45
900
0.25
1
29.7
38
1SMB5940B
B940
40.85
43
45.15
8.7
53
950
0.25
1
32.7
34
1SMB5941B
B941
44.65
47
49.35
8
67
1000
0.25
1
35.8
31
1SMB5942B
B942
48.45
51
53.55
7.3
70
1100
0.25
1
38.8
29
1SMB5943B
B943
53.2
56
58.8
6.7
86
1300
0.25
1
42.6
26
1SMB5944B
B944
58.9
62
65.1
6
100
1500
0.25
1
47.1
24
1SMB5945B
B945
64.6
68
71.4
5.5
120
1700
0.25
1
51.7
22
1SMB5946B
B946
71.25
75
78.75
5
140
2000
0.25
1
56
20
1SMB5947B
B947
77.9
82
86.1
4.6
160
2500
0.25
1
62.2
18
1SMB5948B
B948
86.45
91
95.55
4.1
200
3000
0.25
1
69.2
16
1SMB5949B
B949
95
100
105
3.7
250
3100
0.25
1
76
15
1SMB5950B
B950
104.5
110
115.5
3.4
300
4000
0.25
1
83.6
13
1SMB5951B
B951
114
120
128
3.1
380
4500
0.25
1
91.2
12
1SMB5952B
B952
123.5
130
136.5
2.9
450
5000
0.25
1
98.8
11
1SMB5953B
B953
142.5
150
157.5
2.5
600
6000
0.25
1
114
10
1SMB5954B
B954
152
160
168
2.3
700
6500
0.25
1
121.6
9
1SMB5955B
B955
171
180
189
2.1
900
7000
0.25
1
136.8
8
1SMB5956B
B956
190
200
210
1.9
1200
8000
0.25
1
152
7
Notes: 6. Short duration pulse test used to minimize self-heating effect.
7. ZENER IMPEDANCE (ZZ) DERIVATION ZZT and ZZK are measured by dividing the AC voltage drop across the device by the AC current applied. The
specified limits are for IZ(AC) = 0.1 IZ(DC) with the AC frequency = 60 Hz.
1SMB5920B – 1SMB5956B
Document number: DS32125 Rev. 8 - 2 3 of 7
www.diodes.com May 2019
© Diodes Incorporated
1SMB5920B – 1SMB5956B
NEW PRODUCT
050 100 150
T, AMBIENT TEMPERATURE ( C)
A
°
Figure Power Dissipation
vs. Ambient Temperature
125
7525
0
1
2
3
4
5
6
P , MAXIMUM POWER DISSIPATION (W)
D
T
L
T
A
Note 5
TC of V, TEMPERATURE COEFFICIENT
Z
OF ZENER VOLTAGE (mV/°C)
V, ZENER VOLT AGE (V)
Z
Figure 2 T ypical Temperature Coefficient of
Zener Voltage vs. Zener Voltage
0
50
100
150
200
250
050 100 150 200
0.1
1
10
100
010 20 30 40 50
V, ZENER VOLTAGE (V)
Z
Figure 3 T ypical Zener Breakdown Characteristics
I , ZENER CURRENT (mA)
Z
6.2V 13V 15V 39V
0.1
1
10
100
50 100 150 200 250
V, ZENER VOLTAGE (V)
Z
Figure 4 T ypical Zener Breakdown Characteristics
I , ZENER CURRENT (mA)
Z
200V
ZZ, DYNAMIC IMPEDANCE ( )Ω
1
10
100
1000
0.1 110 100 1000
13V
6.2V
200V
3.3V
I, Z ENE R T ES T CURRENT (mA )
Z
Figure 6 Effect of Zener Current
1SMB5920B – 1SMB5956B
Document number: DS32125 Rev. 8 - 2 4 of 7
www.diodes.com May 2019
© Diodes Incorporated
1SMB5920B – 1SMB5956B
NEW PRODUCT
V, NOMINAL ZENER BREAKDOWN VOLTAGE (V)
Z
Figure 7 T ypical Total Capacitance
vs. Nominal Zener Breakdown Voltage
C , TOTAL CAPACITANCE (pF)
T
0
200
400
600
800
1000
1200
1400
1600
1800
110 100 1000
V = V
R Z
/2
V = 0V
R
f = 1MHz
0t, TIME ( s)µ
Figure 8 Pulse Waveform
20 40 60
100
50
0
P eak V alue I
pp
Half V alue I /2
pp
8x 20 Wav efor m
as defined by R.E .A .
t
p
I , PEAK PULSE CURRENT (%I )
PP pp
0 1 2 3
100
50
0
I , PEAK PULSE CURRENT (%I )
P pp
Peak Value I
pp
Half Value I /2
pp
10 X 1000 Waveform
as defined by R.E.A.
tp
t, TIME (ms)
Figure 9 Pulse Waveform
0.01
0.1
1
10
0.01 0.1 110
t , PULSE DURATI ON (ms)
d
Figure 10 Max. Peak Pulse Power
vs. Pulse Duration
P , PEAK PULSE POWER (kW)
PK
1SMB5920B – 1SMB5956B
Document number: DS32125 Rev. 8 - 2 5 of 7
www.diodes.com May 2019
© Diodes Incorporated
1SMB5920B – 1SMB5956B
NEW PRODUCT
Package Ou t lin e Dim en sio ns
Please see http://www.diodes.com/package-outlines.html for the latest version.
SMB
A
B
C
D
G
HE
J
SMB
Dim
Min
Max
A
3.30
3.94
B
4.06
4.57
C
1.96
2.21
D
0.15
0.31
E
5.00
5.59
G
0.05
0.20
H
0.76
1.52
J
2.00
2.50
All Dimensions in mm
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version.
SMB
C
X1
Y
G
X
Dimensions Value
(in mm)
C
4.30
G
1.80
X
2.50
X1
6.80
Y
2.30
1SMB5920B – 1SMB5956B
Document number: DS32125 Rev. 8 - 2 6 of 7
www.diodes.com May 2019
© Diodes Incorporated
1SMB5920B – 1SMB5956B
NEW PRODUCT
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICT ION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark ri ghts, nor the rights of others. Any Customer or user of this document or products descri bed herein in s uch applic ati ons s hal l as sum e
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harml ess against all damages.
Diodes Incorporated does not warrant or acc ept any li ability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Inc orporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirect l y, any claim of personal injury or death associat ed with such unintended or unauthorized appl i cat i on.
Products desc ribed herein may be covered by one or more United S tates, international or f oreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or f orei gn trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SU PP O R T
Diodes Incorporated products are specificall y not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Off icer of Diodes I ncorporat ed. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in signifi cant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to aff ect its safety or effectivenes s.
Customers repres ent that they have all necessary expertise i n the safety and regulatory ramif ications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safet y-related requirem ents concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representati ves against any dam ages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2019, Diodes Incorporated
www.diodes.com
1SMB5920B – 1SMB5956B
Document number: DS32125 Rev. 8 - 2 7 of 7
www.diodes.com May 2019
© Diodes Incorporated