Microsemi MLL978B Leadless glass zener diode surface mount Datasheet

MLL957B,-1
thru
MLL992B,-1
8700 E. Thomas Road
Scottsdale, AZ 85252
Phone: (480) 941-6300
Fax: (480) 947-1503
±1% and ±2% Versions
“C” and “D” Available
Features
•
•
•
•
•
•
Leadless Package For Surface Mount Technology
Ideal For High Density Mounting
Voltage Range 6.8 To 200 Volts
Hermetically Sealed, Double Slug Glass Construction
Metallurgically Bonded Construction Available as Dash One.
Available in JAN, JTX, JTXV-1 to Mil-PRF-19500/117 (UR-1 Suffix)
Maximum Ratings
LEADLESS GLASS
ZENER DIODE
SURFACE MOUNT
500 mW DC Power Dissipation (See Power Derating Curve In Figure 1)
-55°C to +175°C Operating and Storage Junction Temperature
Package Dimensions In Inches
Application
This surface mountable zener diode series is similar to the 1N957B thru
1N992B 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 (see next page)
STEADY STATE POWER DERATING
1.4
DIM
A
B
U
PD = Power Dissipation
1.2
MILLIMETERS
MIN
MAX
3.30
3.70
1.60
1.70
0.41
0.55
MAX
.146
.067
.022
DO-213AA
1.0
Mechanical
Characteristics
0.8
Dash 1
Metallurgically Bonded
0.6
0.4
Case: Hermetically sealed glass with solder
contact tabs at each end.
Non-Dash 1
0.2
0
INCHES
MIN
.130
.063
.016
Finish: All external surfaces are corrosion
resistant, readily solderable.
0
20
40
60
80
100
120
140
160
T EC End Cap Case Temperature (ºC)
FIGURE 1
180
200
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
MLL957B-92B.PDF 05-02-00
MLL957B,-1
thru
MLL992B,-1
±1% and ±2% Versions
“C” and “D” Available
Electrical Characteristics @ 25°C
MICROSEMI
PART
NUMBER
**
MLL957B
MLL958B
MLL959B
MLL960B
MLL961B
MLL962B
MLL963B
MLL964B
MLL965B
MLL966B
MLL967B
MLL968B
MLL969B
MLL970B
MLL971B
MLL972B
MLL973B
MLL974B
MLL975B
MLL976B
MLL977B
MLL978B
MLL979B
MLL980B
MLL981B
MLL982B
MLL983B
MLL984B
MLL985B
MLL986B
MLL987B
MLL988B
MLL989B
MLL990B
MLL991B
MLL992B
NOMINAL
ZENER
VOLTAGE
VZ @ IzT
(NOTE 1)
ZENER
TEST
CURRENT
IzT
VOLTS
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
110
120
130
150
160
180
200
mA
18.5
16.5
15.0
14.0
12.5
11.5
10.5
9.5
8.5
7.8
7.0
6.2
5.6
5.2
4.6
4.2
3.8
3.4
3.2
3.0
2.7
2.5
2.2
2.0
1.8
1.7
1.5
1.4
1.3
1.1
1.0
0.95
0.85
0.80
0.68
0.65
MAX ZENER IMPEDANCE
(Note 3)
ZZT @ IZT
OHMS
4.5
5.5
6.5
7.5
8.5
9.5
11.5
13.0
16
17
21
25
29
33
41
49
58
70
40
93
105
125
150
185
230
270
330
400
500
750
900
1100
1500
1700
2200
2500
ZZK @ IZK
OHMS
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
4000
4500
5000
6000
6500
7100
8000
mA
1.0
.5
.5
.5
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
MAX. DC
ZENER
CURRENT
IZM
(NOTE 4)
mA
55
50
45
41
38
32
31
28
25
24
20
18
16
15
13
12
11
10
9.5
8.8
7.9
7.4
6.8
6.0
5.5
5.0
4.6
4.1
3.7
3.3
3.1
2.7
2.4
2.2
2.0
1.8
MAX. SURGE
CURRENT
(RECURRENT)
(NOTE 4
MAX. REVERSE
LEAKAGE
CURRENT
IZ (SURGE)
IR
mA
300
275
250
225
200
175
160
150
130
120
110
100
90
80
70
65
60
55
46
44
40
37
35
30
28
26
23
21
18
16
15
13
12
11
10
9
µA
150
75
50
25
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
5
5
5
5
5
5
5
VR
VOLTS
5.2
5.7
6.2
6.9
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
83.6
91.2
98.8
114.0
121.6
136.8
152.0
MAX.TEMP
COEFFICIENT
αVZ
%/°°C
+0.050
+0.058
+0.065
+0.068
+0.075
+0.076
+0.077
+0.079
+0.082
+0.083
+0.085
+0.086
+0.087
+0.088
+0.090
+0.091
+0.092
+0.093
+0.094
+0.095
+0.095
+0.096
+0.096
+0.097
+0.097
+0.098
+0.098
+0.099
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
Note 1 Voltage measurements to be performed 20 seconds after application of dc test current.
Note 2 Zener impedance derived by superimposing on IZT at 60 Hz rms ac current
equal to 10% IZT.
Note 3 Allowance has been made for the increase in VZ due to ZZ and for the increase in junction temperature as the unit
approaches thermal equilibrium at the power dissipation at 500 mW.
** Ordering Information:
1) Commercial: MLL957B thu MLL992B orMLL957B-1 thru MLL992B-1
2) Military: JAN, JANTX, or JANTXV 1N962BUR-1 thru 1N992BUR-1
3) Tight tolerance "C" suffix = ±2%, "D" suffix = ±1%
4) Surge is square wave or equivalent ½ sine wave pulse of 1/120 second duration.
MLL957B-92B.PDF 05-02-00
MLL957B,-1
thru
MLL992B,-1
±1% and ±2% Versions
“C” and “D” Available
CAPACITANCE vs VZ CURVE
TYPICAL CAPACITANCE IN PICOFARADS
300
200
100
90
80
70
60
50
40
30
20
At Zero Volts
10
9
8
7
6
5
4
3
At - 2 Volts (VR )
2
1
0
20
40
60
80 100 120 140 160 180 200 220
ZENER VOLTAGE VZ
FIGURE 2
CAPACITANCE VS ZENER VOLTAGE
(TYPICAL)
MLL957B-92B.PDF 05-02-00
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