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MMSZ4678T1 Series
Preferred Device
Zener Voltage Regulators
500 mW SOD−123 Surface Mount
Three complete series of Zener diodes are offered in the convenient,
surface mount plastic SOD−123 package. These devices provide a
convenient alternative to the leadless 34−package style.
Features
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•
•
•
•
•
•
500 mW Rating on FR−4 or FR−5 Board
Wide Zener Reverse Voltage Range − 1.8 V to 43 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
Pb−Free Packages are Available
1
1
Cathode
2
Anode
2
Mechanical Characteristics:
CASE:
Void-free, transfer-molded, thermosetting plastic case
FINISH:
Corrosion resistant finish, easily solderable
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
SOD−123
CASE 425
STYLE 1
260°C for 10 Seconds
POLARITY:
Cathode indicated by polarity band
FLAMMABILITY RATING:
UL 94 V−0
MAXIMUM RATINGS
Rating
Total Power Dissipation on FR−5 Board,
(Note 1) @ T
L
= 75°C
Derated above 75°C
Thermal Resistance, (Note 2)
Junction−to−Ambient
Thermal Resistance, (Note 2)
Junction−to−Lead
Junction and Storage Temperature Range
Symbol
P
D
500
6.7
R
qJA
R
qJL
T
J
, T
stg
340
150
−55 to
+150
mW
mW/°C
°C/W
°C/W
°C
Max
Unit
MARKING DIAGRAM
1
xx M
G
G
xx = Device Code (Refer to page 3)
M
= Date Code
G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
MMSZ4xxxT1
MMSZ4xxxT1G
MMSZ4xxxT3
MMSZ4xxxT3G
Package
SOD−123
SOD−123
(Pb−Free)
SOD−123
SOD−123
(Pb−Free)
Shipping
†
3000/Tape & Reel
3000/Tape & Reel
10000/Tape & Reel
10000/Tape & Reel
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
1. FR−5 = 3.5 X 1.5 inches, using the minimum recommended footprint.
2. Thermal Resistance measurement obtained via infrared Scan Method.
†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 3 of this
data sheet.
Devices listed in
bold, italic
are ON Semiconductor
Preferred
devices.
Preferred
devices are recommended
choices for future use and best overall value.
©
Semiconductor Components Industries, LLC, 2005
1
August, 2005 − Rev. 7
Publication Order Number:
MMSZ4678T1/D
MMSZ4678T1 Series
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C unless
otherwise noted, V
F
= 0.95 V Max. @ I
F
= 10 mA)
Symbol
V
Z
I
ZT
I
R
V
R
I
F
V
F
Parameter
Reverse Zener Voltage @ I
ZT
Reverse Current
Reverse Leakage Current @ V
R
Reverse Voltage
Forward Current
Forward Voltage @ I
F
V
Z
V
R
I
R
V
F
I
ZT
V
I
F
I
Zener Voltage Regulator
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2
MMSZ4678T1 Series
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C unless otherwise noted, V
F
= 0.9 V Max. @ I
F
= 10 mA)
Zener Voltage
(Note 3)
Device
Marking
CC
CD
CE
CF
CH
CJ
CK
CM
CN
CP
CT
CU
CV
CA
CX
CY
CZ
DC
DD
DE
DF
DH
DJ
DK
DM
DN
DP
DT
DU
DV
DA
DX
DY
EA
EC
ED
EE
EF
EH
EJ
V
Z
(Volts)
Min
1.71
1.90
2.09
2.28
2.565
2.85
3.13
3.42
3.70
4.09
4.47
4.85
5.32
5.89
6.46
7.13
7.79
8.27
8.65
9.50
10.45
11.40
12.35
13.30
14.25
15.20
16.15
17.10
18.05
19.00
20.90
22.80
23.75
25.65
26.60
28.50
31.35
34.20
37.05
40.85
Nom
1.8
2.0
2.2
2.4
2.7
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
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
Max
1.89
2.10
2.31
2.52
2.835
3.15
3.47
3.78
4.10
4.52
4.94
5.36
5.88
6.51
7.14
7.88
8.61
9.14
9.56
10.50
11.55
12.60
13.65
14.70
15.75
16.80
17.85
18.90
19.95
21.00
23.10
25.20
26.25
28.35
29.40
31.50
34.65
37.80
40.95
45.15
@ I
ZT
mA
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
mA
7.5
5
4
2
1
0.8
7.5
7.5
5
4
10
10
10
10
10
10
1
1
1
1
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
Leakage Current
I
R
@ V
R
Volts
1
1
1
1
1
1
1.5
2
2
2
3
3
4
5
5.1
5.7
6.2
6.6
6.9
7.6
8.4
9.1
9.8
10.6
11.4
12.1
12.9
13.6
14.4
15.2
16.7
18.2
19.0
20.4
21.2
22.8
25.0
27.3
29.6
32.6
Device*
MMSZ4678T1, G
MMSZ4679T1, G
MMSZ4680T1, G
MMSZ4681T1, G
MMSZ4682T1, G
MMSZ4683T1, G
MMSZ4684T1, G
MMSZ4685T1, G
MMSZ4686T1, G
MMSZ4687T1, G
MMSZ4688T1, G
MMSZ4689T1, G
MMSZ4690T1, G
MMSZ4691T1, G
MMSZ4692T1, G
MMSZ4693T1, G
MMSZ4694T1, G
MMSZ4695T1, G
MMSZ4696T1, G
MMSZ4697T1, G
MMSZ4698T1, G
MMSZ4699T1, G
MMSZ4700T1, G
MMSZ4701T1, G
MMSZ4702T1, G
MMSZ4703T1, G
†
MMSZ4704T1, G
MMSZ4705T1, G
MMSZ4706T1, G
MMSZ4707T1, G
MMSZ4708T1, G
MMSZ4709T1, G
MMSZ4710T1, G
MMSZ4711T1, G
†
MMSZ4712T1
MMSZ4713T1, G
MMSZ4714T1, G
MMSZ4715T1, G
MMSZ4716T1, G
MMSZ4717T1, G
3. Nominal Zener voltage is measured with the device junction in thermal equilibrium at T
L
= 30°C
±1°C.
*The “G’’ suffix indicates Pb−Free package available.
†MMSZ4703 and MMSZ4711 Not Available in 10,000/Tape & Reel
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3
MMSZ4678T1 Series
TYPICAL CHARACTERISTICS
θ
VZ , TEMPERATURE COEFFICIENT (mV/ C)
°
θ
VZ , TEMPERATURE COEFFICIENT (mV/ C)
°
8
7
6
5
4
3
2
1
0
−1
−2
−3
V
Z
@ I
ZT
TYPICAL T
C
VALUES
100
TYPICAL T
C
VALUES
V
Z
@ I
ZT
10
2
3
4
5
6
7
8
9
10
V
Z
, NOMINAL ZENER VOLTAGE (V)
11
12
1
10
V
Z
, NOMINAL ZENER VOLTAGE (V)
100
Figure 1. Temperature Coefficients
(Temperature Range − 55°C to +150°C)
Figure 2. Temperature Coefficients
(Temperature Range − 55°C to +150°C)
1.2
P
D
, POWER DISSIPATION (WATTS)
1.0
0.8
0.6
0.4
0.2
0
0
25
50
75
100
T, TEMPERATURE (5C)
125
P
D
versus T
A
P
D
versus T
L
1000
Ppk , PEAK SURGE POWER (WATTS)
RECTANGULAR
WAVEFORM, T
A
= 25°C
100
10
150
1
0.1
1
10
PW, PULSE WIDTH (ms)
100
1000
Figure 3. Steady State Power Derating
Figure 4. Maximum Nonrepetitive Surge Power
1000
1000
I
Z
= 1 mA
IF, FORWARD CURRENT (mA)
T
J
= 25°C
I
Z(AC)
= 0.1 I
Z(DC)
f = 1 kHz
75 V (MMSZ5267BT1)
91 V (MMSZ5270BT1)
100
Z ZT, DYNAMIC IMPEDANCE (
Ω
)
100
5 mA
20 mA
10
10
150°C
1
75°C 25°C
0.6
0°C
1.1
1.2
1
10
V
Z
, NOMINAL ZENER VOLTAGE
100
1
0.4
0.5
0.7
0.8
0.9
1.0
V
F
, FORWARD VOLTAGE (V)
Figure 5. Effect of Zener Voltage on
Zener Impedance
Figure 6. Typical Forward Voltage
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4
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