MCC
TM
Micro Commercial Components
omponents
20736 Marilla Street Chatsworth
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SMAJ4741
THRU
SMAJ4754
Silicon
1 Watt
Zener Diodes
DO-214AC
(SMAJ) (High Profile)
H
Cathode Band
Features
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For surface mount application (flat handing surface for
Accurate placement)
11 thru 39 Volt Voltage Range
High Surge Current Rating
Higher Voltages Available
Available on Tape and Reel
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Mechanical Data
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CASE: JEDEC DO-214AC molded plastic body over
passivated chip
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Terminals solderable per MIL-STD-750, Method 2026
Polarity is indicated by cathode band.
Maximum temperature for soldering: 260 C for 10 seconds.
For surface mount applications with flame retardent epoxy
Meeting UL94V-0
o
J
Maximum Ratings @ 25
o
C Unless Otherwise Specified
Peak Surge
I
S
See Table 1
Current
Maximum
V
F
1.2V
(Note: 1)
Forward
Voltage
Steady State
P
(AV)
1.0W
(Note: 2,3)
Power
Dissipation
Operation And
Storage
Temperature
*
NOTES:
1.
2.
3.
Forward Current @ 200mA.
Mounted on 4.0mm copper pads to each terminal.
Lead temperature at 100 C or less. Derate linearly
above 100 C to zero power at 150 C.
o
o
o
2
A
C
E
F
G
D
B
DIMENSIONS
INCHES
MIN
.078
.067
.002
---
.035
.065
.205
.160
.100
MM
MIN
1.98
1.70
.05
---
.89
1.65
5.21
4.06
2.57
T
J
, T
STG
-55
o
C to
+150
o
C
DIM
A
B
C
D
E
F
G
H
J
MAX
.116
.089
.008
.02
.055
.096
.224
.180
.112
MAX
2.95
2.25
.20
.51
1.40
2.45
5.69
4.57
2.84
NOTE
SUGGESTED SOLDER
PAD LAYOUT
0.090”
0.085”
0.070”
Revision: 4
www.mccsemi.com
2004/11/24
SMAJ4741 thru SMAJ4754
Electrical Characteristics @ 25
o
C Unless Otherwise Specified
MCC
Micro Commercial Components
TEST
CURRENT
Izk
MAXIMUM
SURGE
CURRENT
Is
TM
MCC PART
NUMBER
MAXIMUM
REGULATOR MAXIMUM
MAXIMUM MAXIMUM
CURRENT
TEST
DYNAMIC REVERSE
TEST
KNEE
ZENER
Izm
IMPEDANCE
VOLTAGE CURRENT IMPEDANCE CURRENT VOLTAGE
o
Ta=50 C
Vr
Ir @ Vr
Zzt @ Izt
Izt
Zzk @ Izk
Vz
VOLTS
mA
OHMS
uA
VOLTS
mA
OHMS
MA
mA
SMAJ4741
SMAJ4742
SMAJ4743
SMAJ4744
SMAJ4745
SMAJ4746
SMAJ4747
SMAJ4748
SMAJ4749
SMAJ4750
SMAJ4751
SMAJ4752
SMAJ4753
SMAJ4754
11
12
13
15
16
18
20
22
24
27
30
33
36
39
23
21
19
17
15.5
14
12.5
11.5
10.5
9.5
8.5
7.5
7.0
6.5
8
9
10
14
16
20
22
23
25
35
40
45
50
60
5
5
5
5
5
5
5
5
5
5
5
5
5
5
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
83
76
69
61
57
50
45
41
38
34
30
27
25
23
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
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
414
380
344
304
285
250
225
205
190
170
150
135
125
115
NOTE 1 The JEDEC type numbers shown have A 5% tolerance on nominal zener voltage.
No suffix signifies A 10% tolerance, C signifies 2%, and D signifies 1% tolerance.
NOTE 2 The zener impedance is derived from the 60Hz AC voltage, which results when an AC current having an rms value equal to
10% of the DC zener current (Izt or Izk) is superimposed on Izt or Izk. Zener impedance is measured at two points to insure
a sharp knee on the breakdown curve and eliminate unstable units.
NOTE 3 The reverse surge current is measured at 25
o
C ambient using a 1/2 square wave or equivalent sine wave pulse 1/120 second
duration superimposed on Izt
NOTE 4 Voltage measurements to be performed 90 seconds after application of DC current.
Revision: 4
www.mccsemi.com
2004/11/24
SMAJ4741 thru SMAJ4754
MCC
Micro Commercial Components
TM
Ratings and
Characteristic Curves
(T
A
= 25°C unless otherwise noted)
SMAJ4741... SMAJ4754
Revision: 4
www.mccsemi.com
2004/11/24
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