SMBG4728 thru SMBG4764A, e3
SMBJ4728 thru SMBJ4764A, e3
SILICON 2.0 Watt ZENER DIODES
SCOTTSDALE DIVISION
DESCRIPTION
The SMBJ4728A-4764A and SMBG4728A-4764A series of surface mount
2.0 watt Zeners provides voltage regulation in a selection from 3.3 to 100
volts with different tolerances as identified by suffix letter on the part
number as well as RoHS Compliant with an e3 suffix. This surface mount
product series with lower thermal resistance features is equivalent to the
JEDEC registered 1N4728 thru 1N4764A with identical electrical
characteristics except it is rated at 2.0 W instead of 1.0 W. It is available
in J-bend design (SMBJ) with the DO-214AA package for greater PC
board mounting density or in Gull-wing design (SMBG) in the DO-215AA
for visible solder connections. Microsemi also offers numerous other
Zener products to meet higher and lower power applications.
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
APPEARANCE
WWW .
Microsemi
.C
OM
NOTE: All SMB series are equivalent
to prior SMS package identifications.
FEATURES
•
•
•
•
Surface mount equivalent to 1N4728 to 1N4764A
Ideal for high-density and low-profile mounting
Zener voltage available 3.3V to 200V
Standard voltage tolerances are plus/minus 5% with
A suffix and 10 % with no suffix identification
•
Tight tolerances available in plus or minus 2% or 1%
with C or D suffix respectively
•
Options for screening in accordance with MIL-PRF-
19500 for JAN, JANTX, JANTXV, and JANS are
available by adding MQ, MX, MV, or MSP prefixes
respectively to part numbers.
•
RoHS compliant devices available by adding an e3
suffix.
•
•
•
APPLICATIONS / BENEFITS
Regulates voltage over a broad operating current
and temperature range
Wide selection from 3.3 to 100 V
Popular DO-214AA or DO-215AA packages and
footprints for either high density J-bend or Gull-wing
designs for visible solder joints
Nonsensitive to ESD per MIL-STD-750 Method
1020
Moisture classification: Level 1 per IPC/JEDEC J-
STD-020B with no dry pack required
•
•
MAXIMUM RATINGS
•
•
•
Power dissipation at 25
º
C: 2.0 watts (also see
derating in Figure 1).
Operating and Storage temperature: -65
º
C to
+150
º
C
Thermal Resistance: 35
º
C/W junction to lead, or
100
º
C/W junction to ambient when mounted on FR4
PC board (1oz Cu) with recommended footprint
(see last page)
Steady-State Power: 2 watts at T
L
< 80
o
C, or 1.25
watts at T
A
= 25
º
C when mounted on FR4 PC board
with recommended footprint (also see Figure 1)
Forward voltage @200 mA: 1.2 volts (maximum)
Solder Temperatures: 260
º
C for 10 s (maximum)
MECHANICAL AND PACKAGING
•
CASE: Void-free transfer molded thermosetting
epoxy body meeting UL94V-0
•
TERMINALS: Gull-wing or C-bend (modified J-
bend) leads, tin-lead plated or RoHS compliant
annealed matte-tin plating solderable per MIL-STD-
750, method 2026
•
POLARITY: Cathode indicated by band. Diode to
be operated with the banded end positive with
respect to opposite end for Zener regulation
•
MARKING: Includes part number without prefix
(e.g. 4728A, 4728Ae3, 4734C, 4764D, etc.)
•
TAPE & REEL option: Standard per EIA-481-1-A
with 12 mm tape, 750 per 7 inch reel or 2500 per 13
inch reel (add “TR” suffix to part number)
•
WEIGHT: 0.1 grams
•
See package dimensions on last page
SMBG(J)4728–4764A, e3
•
•
•
Copyright
©
2005
6-06-2005 REV D
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
SMBG4728 thru SMBG4764A, e3
SMBJ4728 thru SMBJ4764A, e3
SILICON 2.0 Watt ZENER DIODES
SCOTTSDALE DIVISION
ELECTRICAL CHARACTERISTICS*
JEDEC
TYPE NUMBER
(Note 1)
GULL-WING
LEAD
SMBG4728A
SMBG4729A
SMBG4730A
SMBG4731A
SMBG4732A
SMBG4733A
SMBG4734A
SMBG4735A
SMBG4736A
SMBG4737A
SMBG4738A
SMBG4739A
SMBG4740A
SMBG4741A
SMBG4742A
SMBG4743A
SMBG4744A
SMBG4745A
SMBG4746A
SMBG4747A
SMBG4748A
SMBG4749A
SMBG4750A
SMBG4751A
SMBG4752A
SMBG4753A
SMBG4754A
SMBG4755A
SMBG4756A
SMBG4757A
SMBG4758A
SMBG4759A
SMBG4760A
SMBG4761A
SMBG4762A
SMBG4763A
SMBG4764A
C-BEND
(MOD. “J”)
SMBJ4728A
SMBJ4729A
SMBJ4730A
SMBJ4731A
SMBJ4732A
SMBJ4733A
SMBJ4734A
SMBJ4735A
SMBJ4736A
SMBJ4737A
SMBJ4738A
SMBJ4739A
SMBJ4740A
SMBJ4741A
SMBJ4742A
SMBJ4743A
SMBJ4744A
SMBJ4745A
SMBJ4746A
SMBJ4747A
SMBJ4748A
SMBJ4749A
SMBJ4750A
SMBJ4751A
SMBJ4752A
SMBJ4753A
SMBJ4754A
SMBJ4755A
SMBJ4756A
SMBJ4757A
SMBJ4758A
SMBJ4759A
SMBJ4760A
SMBJ4761A
SMBJ4762A
SMBJ4763A
SMBJ4764A
WWW .
Microsemi
.C
OM
ZENER
VOLTAGE
TEST
CURRENT
(Vz)
(Note 4)
VOLTS
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
100
(I
ZT
)
MAXIMUM
DYNAMIC
IMPEDANCE
MAXIMUM
REVERSE
CURRENT
TEST
VOLTAGE
(V
R
)
MAXIMUM
REGULATOR
CURRENT
TA = 50
o
C
MAXIMUM
KNEE
IMPEDANCE
TEST
CURRENT
(I
ZK
)
MAXIMUM
(SURGE)
CURRENT
(Z
ZT
@ I
ZT
)
(Note 2)
mA
76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
17
15.5
14
12.5
11.5
10.5
9.5
8.5
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.7
3.3
3.0
2.8
2.5
(I
R
@ V
R
)
μA
100
100
50
10
10
10
10
10
10
10
10
10
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
(I
ZM
)
(Z
ZK
@ I
ZK
)
(Note 2)
OHMS
400
400
400
400
500
550
600
700
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
2000
2000
2000
2000
3000
3000
3000
(I
S
)
(Note 3)
mA
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.5
0.5
0.5
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
OHMS
10
10
9
9
8
7
5
2
3.5
4.0
4.5
5.0
7
8
9
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
125
150
175
200
250
350
VOLTS
1
1
1
1
1
1
2
3
4
5
6
7
7.6
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
42.6
47.1
51.7
56.0
62.2
69.2
76.0
mA
276
252
234
217
193
178
162
146
133
121
110
100
91
83
76
69
61
57
50
45
41
38
34
30
27
25
23
22
19
18
16
14
13
12
11
10
9
mA
1380
1260
1190
1070
970
890
810
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
170
150
135
125
115
110
95
90
80
70
65
60
55
50
45
*JEDEC Registered Data
NOTES:
1.
The JEDEC type numbers shown with an A suffix have a 5% tolerance on nominal zener voltage. No suffix signifies a 10% tolerance,
C signifies 2%, and D signifies 1% tolerance. Also add a P suffix for designating plastic construction (or G suffix for glass body). Add
an e3 suffix for RoHS compliant devices.
The Zener impedance is derived from the 60 Hz ac voltage that results when an ac current having an rms value equal to 10% of the dc
Zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. Zener impedance is measured at two points to ensure a sharp knee on the
breakdown curve and eliminate unstable units. See MicroNote 202 for zener impedance variation with different operating currents.
o
The reverse surge current is measured at 25 C ambient using a square wave or equivalent half-sine wave pulse 1/120 second duration
superimposed on I
ZT
.
Zener voltage (V
Z
) is measured at T
L
= 25ºC (+8, -2ºC) and 90 seconds after application of dc current.
2.
3.
4.
SMBG(J)4728–4764A, e3
Copyright
©
2005
6-06-2005 REV D
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
SMBG4728 thru SMBG4764A, e3
SMBJ4728 thru SMBJ4764A, e3
SILICON 2.0 Watt ZENER DIODES
SCOTTSDALE DIVISION
GRAPHS
WWW .
Microsemi
.C
OM
T
L
T
A
on FR4
PC board
T
L
, LEAD TEMP. ( C) or
T
A
on FR4 PC Board
o
TEMPERATURE COEFFICIENT mV/oC
RATED POWER DISSIPATION - W
NOMINAL ZENER VOLTAGE (VOLTS)
FIGURE 1
Power Derating Curve
FIGURE 2
Temp. Coeff. vs. Zener Voltage
FIGURE 3
Typical Capacitance vs. Voltage
for Representative Types
PACKAGE DIMENSIONS & PAD LAYOUT
SMBJ
A
MIN
MAX
MIN
MAX
.077
.083
1.96
2.10
SMBG
B
.160
.180
4.06
4.57
C
.130
.155
3.30
3.94
D
.205
.220
5.21
5.59
E
.077
.104
1.95
2.65
F
.235
.255
5.97
6.48
K
.015
.030
.381
.762
L
.030
.060
DIMENSIONS IN MILLIMETERS
.760
1.520
SMBG(J)4728–4764A, e3
A
B
C
A
B
C
INCHES
0.320
0.085
0.110
INCHES
.260
.085
.110
mm
8.13
2.16
2.79
mm
6.60
2.16
2.79
SMBG
SMBJ
Copyright
©
2005
6-06-2005 REV D
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
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