8700 E. Thomas Road
Scottsdale, AZ 85252
Phone: (480) 941-6300
Fax: (480) 947-1503
MLL746A,-1 thru MLL759A,-1
and
MLL4370A,-1 thru MLL4372A,-1
±1% and ±2% Versions
“C” and “D” Available
Features
•
•
•
•
•
Leadless Package For Surface Mount Technology
Ideal For High Density Mounting
Voltage Range 2.4 To 12 Volts
Hermetically Sealed, Double Slug Glass Construction
Metallurgically Bonded Construction Available as Dash One.
Available in JAN, JTX, JTXV-1 To Mil-PRF-19500/127 (UR-1 Suffix)
•
Maximum Ratings
500 mW DC Power Dissipation (See Power Derating Curve In Figure 1)
-55°C to +175°C Operating and Storage Junction Temperature
LEADLESS GLASS
ZENER DIODE
SURFACE MOUNT
Package Dimensions In Inches
Application
This surface mountable zener diode series is similar to the 1N746 thru
1N759 in the DO-35 equivalent package except that it meets the new
JEDEC surface mount outline DO-213AA. It is an ideal selection for
applications of high density and low parasitic requirements. Due to its
glass hermetic qualities, it may also be considered for high reliability
applications.
Electrical Characteristics @ 25°C
MICROSEMI
PART
NUMBER
NOMINAL
ZENER
VOLTAGE
V
Z
@ I
zT
(NOTE 1)
VOLTS
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
9.1
10.0
12.0
ZENER
TEST
CURRENT
I
zT
mA
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
MAXIMUM
ZENER
IMPEDANC
E
Z
ZT
@ I
ZT
(NOTE 2)
OHMS
30
30
29
28
24
23
22
19
17
11
7
5
6
8
10
17
30
MAXIMUM
REVERSE CURRENT
@ V
R
= 1 VOLT
@25°C
°
µ
A
100
75
50
10
10
10
2
2
1
1
.1
.1
.1
.1
.1
.1
.1
@ +150°C
°
µ
A
200
150
100
30
30
30
30
30
20
20
20
20
20
20
20
20
20
MAXIMUM
ZENER
CURRENT
I
ZM
(NOTE 4)
mA
150
135
120
110
100
95
85
75
70
65
60
55
50
45
40
35
30
TYPICAL
TEMP
COEFF. OF
ZENER
VOLTAGE
%/°C
°
α
VZ
**
MLL4370A
MLL4371A
MLL4372A
MLL746A
MLL747A
MLL748A
MLL749A
MLL750A
MLL751A
MLL752A
MLL753A
MLL754A
MLL755A
MLL756A
MLL757A
MLL758A
MLL759A
DIM
A
B
U
MILLIMETERS
MIN
MAX
3.30
3.70
1.60
1.70
0.41
0.55
INCHES
MIN
.130
.063
.016
MAX
.146
.067
.022
- .085
- .080
- .075
- .066
- .058
- .046
- .033
- .015
±
.010
+.030
+.049
+.053
+.057
+.060
+.061
+.062
+.062
DO-213AA
Mechanical
Characteristics
Case:
Hermetically sealed glass with solder
contact tabs at each end.
Finish:
All external surfaces are corrosion
resistant, readily solderable.
Polarity:
Banded end is cathode.
Thermal Resistance:
100°C/Watt Maximum
junction to end caps for "-1" construction and
150°C/W maximum junction to end caps for
commercial.
Mounting Position:
Any
Weight: 0.04 gm
Note 1 Voltage measurements to be performed 20 seconds after application of dc
test current.
Note 2 Zener impedance derived by superimposing on I
ZT
at 60 Hz rms ac current
equal to 10% I
ZT
(2 mA ac).
Note 3 Allowance has been made for the increase in V
Z
due to Z
Z
and for the
increase in junction temperature as the unit approaches thermal equilibrium at the
power dissipation at 500 mW.
** Ordering Information:
1) Commercial: MLL746A thru MLL759A or MLL746A-1 thru MLL759A-1
MLL4370A thru MLL4372A or MLL4370A-1 thru MLL4372A-1
2) Military: JAN, JANTX, or JANTXV 1Nxxxx UR-1
3) Tight tolerance "C" suffix = ±2%, "D" suffix = ±1%
MSC0291.PDF 04-20-00
MLL746A,-1 thru MLL759A,-1
and
MLL4370A,-1 thru MLL4372A,-1
±1% and ±2% Versions
“C” and “D” Available
STEADY STATE POWER DERATING
1.4
1.2
1.0
0.8
0.6
Dash 1
Metalurgically Bonded
0.4
Non-Dash 1
0.2
0
0
20
40
60
80
100
120
140
160
180
200
T
E C
End Cap Case Temperature (ºC)
FIGURE 1
ZENER IMPEDANCE (Ohms)
P
D
= Power Dissipation
ZENER CURRENT (mA)
FIGURE 2
ZENER IMPEDANCE VS ZENER CURRENT
(TYPICAL)
CAPACITANCE vs V
Z
CURVE
300
TYPICAL CAPACITANCE IN PICOFARADS
200
100
90
80
70
60
50
40
30
20
At Zero Volts
10
9
8
7
6
5
4
3
2
1
At - 2 Volts (V
R
)
0
20
40
60
80 100 120 140 160 180 200 220
ZENER VOLTAGE V
Z
FIGURE 3
CAPACITANCE VS ZENER VOLTAGE
(TYPICAL)
MSC0291.PDF 04-20-00
微控制器 MCU
