MMBZ52xxELT1G Series,
SZMMBZ52xxELT1G Series
Zener Voltage Regulators
225 mW SOT−23 Surface Mount
This series of Zener diodes is offered in the convenient, surface
mount plastic SOT−23 package. These devices are designed to provide
voltage regulation with minimum space requirement. They are well
suited for applications such as cellular phones, hand held portables,
and high density PC boards.
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3
Cathode
Features
•
•
•
•
•
•
•
•
225 mW Rating on FR−4 or FR−5 Board
Zener Voltage Range − 2.4 V to 91 V
Package Designed for Optimal Automated Board Assembly
Small Package Size for High Density Applications
ESD Rating of Class 3 (>16 kV) per Human Body Model
Peak Power − 225 W (8 x 20 ms)
SZ Prefix for Automotive and Other Applications Requiring Unique
Site and Control Change Requirements; AEC−Q101 Qualified and
PPAP Capable
Pb−Free Packages are Available
Mechanical Characteristics:
CASE: Void-free, transfer-molded, thermosetting plastic case
FINISH: Corrosion resistant finish, easily solderable
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
260°C for 10 Seconds
POLARITY: Cathode indicated by polarity band
FLAMMABILITY RATING: UL 94 V−0
1
Anode
MARKING
DIAGRAM
3
1
2
SOT−23
CASE 318
STYLE 8
Bxx M G
G
1
Bxx
xx
M
G
= Device Code
= (Refer to page 2)
= Date Code*
= Pb−Free Package
(Note: Microdot may be in either location)
*Date Code orientation may vary depending
upon manufacturing location.
ORDERING INFORMATION
MAXIMUM RATINGS
Symbol
Max
Unit
Peak Power Dissipation @ 20 ms (Note 1)
@ TL ≤ 25°C
Ppk
225
W
Total Power Dissipation on FR−5 Board,
(Note 2) @ TA = 25°C
Derated above 25°C
PD
Thermal Resistance, Junction−to−Ambient
Total Power Dissipation on Alumina
Substrate, (Note 3) @ TA = 25°C
Derated above 25°C
RqJA
PD
225
1.8
mW
mW/°C
556
°C/W
300
2.4
mW
mW/°C
Thermal Resistance, Junction−to−Ambient
RqJA
417
°C/W
Junction and Storage Temperature Range
TJ, Tstg
−65 to
+150
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the
device. If any of these limits are exceeded, device functionality should not be
assumed, damage may occur and reliability may be affected.
1. Nonrepetitive current pulse per Figure 9.
2. FR−5 = 1.0 X 0.75 X 0.62 in.
3. Alumina = 0.4 X 0.3 X 0.024 in., 99.5% alumina.
© Semiconductor Components Industries, LLC, 2003
October, 2016 − Rev. 8
Package
Shipping†
MMBZ52xxELT1G
SOT−23
(Pb−Free)
3000 / Tape &
Reel
SZMMBZ52xxELT1G
SOT−23
(Pb−Free)
3000 / Tape &
Reel
MMBZ52xxELT3G
SOT−23
(Pb−Free)
10000 / Tape &
Reel
Device
Rating
1
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
DEVICE MARKING INFORMATION
See specific marking information in the device marking
column of the Electrical Characteristics table on page 2 of
this data sheet.
Publication Order Number:
MMBZ5221ELT1/D
MMBZ52xxELT1G Series, SZMMBZ52xxELT1G Series
ELECTRICAL CHARACTERISTICS
I
(Pinout: 1-Anode, 2-No Connection, 3-Cathode) (TA = 25°C
unless otherwise noted, VF = 0.95 V Max. @ IF = 10 mA)
Symbol
IF
Parameter
VZ
Reverse Zener Voltage @ IZT
IZT
Reverse Current
ZZT
Maximum Zener Impedance @ IZT
IZK
Reverse Current
ZZK
Maximum Zener Impedance @ IZK
IR
Reverse Leakage Current @ VR
VR
Reverse Voltage
IF
Forward Current
VF
Forward Voltage @ IF
VZ VR
V
IR VF
IZT
Zener Voltage Regulator
ELECTRICAL CHARACTERISTICS (Pinout: 1-Anode, 2-NC, 3-Cathode) (VF = 0.9 V Max @ IF = 10 mA for all types.)
Zener Voltage (Note 4)
VZ (V)
Zener Impedance
@ IZT
ZZT @ IZT
Leakage Current
ZZK @ IZK
IR @ VR
Device
Marking
Min
Nom
Max
mA
W
W
mA
mA
V
MMBZ5221ELT1/T3G
BE2
2.28
2.4
2.52
20
30
1200
0.25
100
1
MMBZ5226ELT1/T3G
BE7
3.13
3.3
3.47
20
28
1600
0.25
25
1
MMBZ5228ELT1/T3G
BE9
3.70
3.9
4.10
20
23
1900
0.25
10
1
MMBZ5229ELT1/T3G
BF1
4.08
4.3
4.52
20
22
2000
0.25
5
1
MMBZ5230ELT1/T3G
BF2
4.46
4.7
4.94
20
19
1900
0.25
5
2
MMBZ5231ELT1/T3G
BF3
4.84
5.1
5.36
20
17
1600
0.25
5
2
MMBZ5232ELT1/T3G
BF4
5.32
5.6
5.88
20
11
1600
0.25
5
3
MMBZ5234ELT1/T3G
BF6
5.89
6.2
6.51
20
7
1000
0.25
5
4
MMBZ5235ELT1/T3G
BF7
6.46
6.8
7.14
20
5
750
0.25
3
5
MMBZ5236ELT1/T3G
BF8
7.12
7.5
7.88
20
6
500
0.25
3
6
MMBZ5237ELT1/T3G
BF9
7.79
8.2
8.61
20
8
500
0.25
3
6.5
MMBZ5239ELT1/T3G
BG2
8.65
9.1
9.55
20
10
600
0.25
3
7
MMBZ5240ELT1/T3G
BG3
9.50
10
10.50
20
17
600
0.25
3
8
MMBZ5242ELT1/T3G
BG5
11.40
12
12.60
20
30
600
0.25
1
9.1
MMBZ5243ELT1/T3G
BG6
12.35
13
13.65
9.5
13
600
0.25
0.5
9.9
MMBZ5244ELT1/T3G
BG7
13.30
14
14.70
9
15
600
0.25
0.1
10
MMBZ5245ELT1/T3G
BG8
14.25
15
15.75
8.5
16
600
0.25
0.1
11
MMBZ5246ELT1G†
BG9
15.20
16
16.80
7.8
17
600
0.25
0.1
12
MMBZ5248ELT1/T1G
BH2
17.10
18
18.90
7
21
600
0.25
0.1
14
MMBZ5250ELT1/T3G
BH4
19.00
20
21.00
6.2
25
600
0.25
0.1
15
Device*
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
4. Zener voltage is measured with a pulse test current IZ at an ambient temperature of 25°C.
*Includes SZ−prefix devices where applicable.
†MMBZ5246EL, MMBZ5252EL, and MMBZ5265EL Not Available in 10,000/Tape & Reel.
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2
MMBZ52xxELT1G Series, SZMMBZ52xxELT1G Series
ELECTRICAL CHARACTERISTICS (continued) (Pinout: 1-Anode, 2-NC, 3-Cathode) (VF = 0.9 V Max @ IF = 10 mA for all types.)
Zener Voltage (Note 5)
VZ (V)
Zener Impedance
@ IZT
ZZT @ IZT
Leakage Current
ZZK @ IZK
IR @ VR
Device
Marking
Min
Nom
Max
mA
W
W
mA
mA
V
MMBZ5252ELT1G†
BH6
22.80
24
25.20
5.2
33
600
0.25
0.1
18
MMBZ5253ELT1/T3G
BH7
23.75
25
26.25
5
35
600
0.25
0.1
19
MMBZ5254ELT1/T3G
BH8
25.65
27
28.35
4.6
41
600
0.25
0.1
21
MMBZ5255ELT1/T3G
BH9
26.60
28
29.40
4.5
44
600
0.25
0.1
21
MMBZ5256ELT1/T3G
BJ1
28.50
30
31.50
4.2
49
600
0.25
0.1
23
MMBZ5257ELT1/T3G
BJ2
31.35
33
34.65
3.8
58
700
0.25
0.1
25
MMBZ5258ELT1/T3G
BJ3
34.20
36
37.80
3.4
70
700
0.25
0.1
27
MMBZ5261ELT1G
BJ6
49.35
47
44.65
2.7
105
1000
0.25
0.1
36
MMBZ5262ELT1/T3G
BJ7
48.45
51
53.55
2.5
125
1100
0.25
0.1
37
MMBZ5263ELT1/T3G
BJ8
53.20
56
58.80
2.2
150
1300
0.25
0.1
43
MMBZ5265ELT1G†
BK1
58.90
62
65.10
2
185
1400
0.25
0.1
47
Device*
5. Zener voltage is measured with a pulse test current IZ at an ambient temperature of 25°C.
*Includes SZ−prefix devices where applicable.
†MMBZ5246EL, MMBZ5252EL, and MMBZ5265EL Not Available in 10,000/Tape & Reel.
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3
MMBZ52xxELT1G Series, SZMMBZ52xxELT1G Series
8
100
7
θ VZ, TEMPERATURE COEFFICIENT (mV/°C)
θ VZ, TEMPERATURE COEFFICIENT (mV/°C)
TYPICAL CHARACTERISTICS
TYPICAL TC VALUES
FOR MMBZ52xxBLT1G SERIES,
SZMMBZ52xxBLT1G SERIES
6
5
4
VZ @ IZT
3
VZ @ IZT
10
2
1
0
−1
−2
−3
TYPICAL TC VALUES
FOR MMBZ52xxBLT1G SERIES,
SZMMBZ52xxBLT1G SERIES
2
3
4
5
6
7
8
9
10
VZ, NOMINAL ZENER VOLTAGE (V)
11
12
1
10
100
VZ, NOMINAL ZENER VOLTAGE (V)
Figure 1. Temperature Coefficients
(Temperature Range − 55°C to +150°C)
Figure 2. Temperature Coefficients
(Temperature Range − 55°C to +150°C)
1000
IZ = 1 mA
TJ = 25°C
IZ(AC) = 0.1 IZ(DC)
f = 1 kHz
IF, FORWARD CURRENT (mA)
Z ZT, DYNAMIC IMPEDANCE ( Ω )
1000
100
75 V (MMBZ5267BLT1)
91 V (MMBZ5270BLT1)
100
5 mA
20 mA
10
10
150°C
1
1
10
VZ, NOMINAL ZENER VOLTAGE
100
1
0.4
Figure 3. Effect of Zener Voltage on
Zener Impedance
0.5
75°C 25°C
0°C
0.6
0.7
0.8
0.9
1.0
VF, FORWARD VOLTAGE (V)
Figure 4. Typical Forward Voltage
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4
1.1
1.2
MMBZ52xxELT1G Series, SZMMBZ52xxELT1G Series
TYPICAL CHARACTERISTICS
1000
1000
C, CAPACITANCE (pF)
0 V BIAS
1 V BIAS
I R , LEAKAGE CURRENT (m A)
TA = 25°C
100
BIAS AT
50% OF VZ NOM
100
10
1
+150°C
0.1
0.01
10
+25°C
0.00
1
0.0001
1
1
-55°C
0.00001
100
0
10
VZ, NOMINAL ZENER VOLTAGE (V)
10
Figure 5. Typical Capacitance
20
30
40
50
60
70
VZ, NOMINAL ZENER VOLTAGE (V)
Figure 6. Typical Leakage Current
100
100
TA = 25°C
I Z , ZENER CURRENT (mA)
10
1
0.1
0
2
4
6
8
VZ, ZENER VOLTAGE (V)
1
0.1
0.01
12
10
10
10
100
50
70
VZ, ZENER VOLTAGE (V)
PEAK VALUE IRSM @ 8 ms
tr
90
30
PULSE WIDTH (tP) IS DEFINED
AS THAT POINT WHERE THE
PEAK CURRENT DECAY = 8 ms
80
70
60
50
HALF VALUE IRSM/2 @ 20 ms
40
30
tP
20
10
0
0
20
90
Figure 8. Zener Voltage versus Zener Current
(12 V to 91 V)
Figure 7. Zener Voltage versus Zener Current
(VZ Up to 12 V)
% OF PEAK PULSE CURRENT
I Z , ZENER CURRENT (mA)
TA = 25°C
0.01
80
40
60
t, TIME (ms)
Figure 9. 8 × 20 ms Pulse Waveform
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5
80
90
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
SOT−23 (TO−236)
CASE 318
ISSUE AT
DATE 01 MAR 2023
SCALE 4:1
GENERIC
MARKING DIAGRAM*
XXXMG
G
1
XXX = Specific Device Code
M = Date Code
G
= Pb−Free Package
*This information is generic. Please refer to
device data sheet for actual part marking.
Pb−Free indicator, “G” or microdot “G”, may
or may not be present. Some products may
not follow the Generic Marking.
STYLES ON PAGE 2
DOCUMENT NUMBER:
DESCRIPTION:
98ASB42226B
SOT−23 (TO−236)
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
PAGE 1 OF 2
onsemi and
are trademarks of Semiconductor Components Industries, LLC dba onsemi or its subsidiaries in the United States and/or other countries. onsemi reserves
the right to make changes without further notice to any products herein. onsemi makes no warranty, representation or guarantee regarding the suitability of its products for any particular
purpose, nor does onsemi assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation
special, consequential or incidental damages. onsemi does not convey any license under its patent rights nor the rights of others.
© Semiconductor Components Industries, LLC, 2019
www.onsemi.com
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
SOT−23 (TO−236)
CASE 318
ISSUE AT
DATE 01 MAR 2023
STYLE 1 THRU 5:
CANCELLED
STYLE 6:
PIN 1. BASE
2. EMITTER
3. COLLECTOR
STYLE 7:
PIN 1. EMITTER
2. BASE
3. COLLECTOR
STYLE 9:
PIN 1. ANODE
2. ANODE
3. CATHODE
STYLE 10:
PIN 1. DRAIN
2. SOURCE
3. GATE
STYLE 11:
STYLE 12:
PIN 1. ANODE
PIN 1. CATHODE
2. CATHODE
2. CATHODE
3. CATHODE−ANODE
3. ANODE
STYLE 15:
PIN 1. GATE
2. CATHODE
3. ANODE
STYLE 16:
PIN 1. ANODE
2. CATHODE
3. CATHODE
STYLE 17:
PIN 1. NO CONNECTION
2. ANODE
3. CATHODE
STYLE 18:
STYLE 19:
STYLE 20:
PIN 1. CATHODE
PIN 1. NO CONNECTION PIN 1. CATHODE
2. CATHODE
2. ANODE
2. ANODE
3. ANODE
3. CATHODE−ANODE
3. GATE
STYLE 21:
PIN 1. GATE
2. SOURCE
3. DRAIN
STYLE 22:
PIN 1. RETURN
2. OUTPUT
3. INPUT
STYLE 23:
PIN 1. ANODE
2. ANODE
3. CATHODE
STYLE 24:
PIN 1. GATE
2. DRAIN
3. SOURCE
STYLE 27:
PIN 1. CATHODE
2. CATHODE
3. CATHODE
STYLE 28:
PIN 1. ANODE
2. ANODE
3. ANODE
DOCUMENT NUMBER:
DESCRIPTION:
98ASB42226B
SOT−23 (TO−236)
STYLE 8:
PIN 1. ANODE
2. NO CONNECTION
3. CATHODE
STYLE 13:
PIN 1. SOURCE
2. DRAIN
3. GATE
STYLE 25:
PIN 1. ANODE
2. CATHODE
3. GATE
STYLE 14:
PIN 1. CATHODE
2. GATE
3. ANODE
STYLE 26:
PIN 1. CATHODE
2. ANODE
3. NO CONNECTION
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
PAGE 2 OF 2
onsemi and
are trademarks of Semiconductor Components Industries, LLC dba onsemi or its subsidiaries in the United States and/or other countries. onsemi reserves
the right to make changes without further notice to any products herein. onsemi makes no warranty, representation or guarantee regarding the suitability of its products for any particular
purpose, nor does onsemi assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation
special, consequential or incidental damages. onsemi does not convey any license under its patent rights nor the rights of others.
© Semiconductor Components Industries, LLC, 2019
www.onsemi.com
onsemi,
, and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates
and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property.
A listing of onsemi’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. onsemi reserves the right to make changes at any time to any
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