MLL957B-92B.PDF 05-02-00
MLL957B,-1
thru
MLL992B,-1
±1% and ±2% Versions
“C” and “D” Available
Electrical Characteristics (see next page)
8700 E. Thomas Road
Scottsdale, AZ 85252
Phone: (480) 941-6300
Fax: (480) 947-1503
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)
MILLIMETERS INCHES
DIM MIN MAX MIN MAX
A 3.30 3.70 .130 .146
B 1.60 1.70 .063 .067
U 0.41 0.55 .016 .022
LEADLESS GLASS
ZENER DIODE
SURFACE MOUNT
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
Maximum Ratings
500 mW DC Power Dissipation (See Power Derating Curve In Figure 1)
-55°C to +175°C Operating and Storage Junction Temperature
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.
DO-213AA
Package Dimensi ons I n I n ches
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 20 40 60 80 100 120 140 160 180 200
Dash 1
Metallurgically Bonded
Non-Dash 1
T
EC
End Cap Case Temperature (ºC)
FIGURE 1
PD = Power Dissipation
STEADY STATE POWER DERATING
MLL957B-92B.PDF 05-02-00
MLL957B,-1
thru
MLL992B,-1
±1% and ±2% Versions
“C” and “D” Available
El
ec
tri
ca
l
C
h
a
r
ac
t
e
ri
s
ti
cs
@
2
5
°
C
MICROSEMI
PART
NUMBER
NOMINAL
ZENER
VOLTAGE
VZ @ IzT
(NOTE 1)
ZENER
TEST
CURRENT
IzT
MAX ZENER IMPEDANCE
(Note 3)
ZZT @ IZT ZZK @ IZK
MAX. DC
ZENER
CURRENT
IZM
(NOTE 4)
MAX. SURGE
CURRENT
(RECURRENT)
(NOTE 4
IZ (SURGE)
MAX. REVERSE
LEAKAGE
CURRENT
IRVR
MAX.TEMP
COEFFICIENT
α
αα
αVZ
** VOLTS mA OHMS OHMS mA mA mA µ
µµ
µAVOLTS %/°
°°
°C
MLL957B 6.8 18.5 4.5 700 1.0 55 300 150 5.2 +0.050
MLL958B 7.5 16.5 5.5 700 .5 50 275 75 5.7 +0.058
MLL959B 8.2 15.0 6.5 700 .5 45 250 50 6.2 +0.065
MLL960B 9.1 14.0 7.5 700 .5 41 225 25 6.9 +0.068
MLL961B 10 12.5 8.5 700 .25 38 200 10 7.6 +0.075
MLL962B 11 11.5 9.5 700 .25 32 175 5 8.4 +0.076
MLL963B 12 10.5 11.5 700 .25 31 160 5 9.1 +0.077
MLL964B 13 9.5 13.0 700 .25 28 150 5 9.9 +0.079
MLL965B 15 8.5 16 700 .25 25 130 5 11.4 +0.082
MLL966B 16 7.8 17 700 .25 24 120 5 12.2 +0.083
MLL967B 18 7.0 21 750 .25 20 110 5 13.7 +0.085
MLL968B 20 6.2 25 750 .25 18 100 5 15.2 +0.086
MLL969B 22 5.6 29 750 .25 16 90 5 16.7 +0.087
MLL970B 24 5.2 33 750 .25 15 80 5 18.2 +0.088
MLL971B 27 4.6 41 750 .25 13 70 5 20.6 +0.090
MLL972B 30 4.2 49 1000 .25 12 65 5 22.8 +0.091
MLL973B 33 3.8 58 1000 .25 11 60 5 25.1 +0.092
MLL974B 36 3.4 70 1000 .25 10 55 5 27.4 +0.093
MLL975B 39 3.2 40 1000 .25 9.5 46 5 29.7 +0.094
MLL976B 43 3.0 93 1500 .25 8.8 44 5 32.7 +0.095
MLL977B 47 2.7 105 1500 .25 7.9 40 5 35.8 +0.095
MLL978B 51 2.5 125 1500 .25 7.4 37 5 38.8 +0.096
MLL979B 56 2.2 150 2000 .25 6.8 35 5 42.6 +0.096
MLL980B 62 2.0 185 2000 .25 6.0 30 5 47.1 +0.097
MLL981B 68 1.8 230 2000 .25 5.5 28 5 51.7 +0.097
MLL982B 75 1.7 270 2000 .25 5.0 26 5 56.0 +0.098
MLL983B 82 1.5 330 3000 .25 4.6 23 5 62.2 +0.098
MLL984B 91 1.4 400 3000 .25 4.1 21 5 69.2 +0.099
MLL985B 100 1.3 500 3000 .25 3.7 18 5 76.0 +0.110
MLL986B 110 1.1 750 4000 .25 3.3 16 5 83.6 +0.110
MLL987B 120 1.0 900 4500 .25 3.1 15 5 91.2 +0.110
MLL988B 130 0.95 1100 5000 .25 2.7 13 5 98.8 +0.110
MLL989B 150 0.85 1500 6000 .25 2.4 12 5 114.0 +0.110
MLL990B 160 0.80 1700 6500 .25 2.2 11 5 121.6 +0.110
MLL991B 180 0.68 2200 7100 .25 2.0 10 5 136.8 +0.110
MLL992B 200 0.65 2500 8000 .25 1.8 9 5 152.0 +0.110
Note 1 Voltage measurem ents to be perform ed 20 seconds after appl ication 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 w ave or equi val ent ½
½½
½ sine wave pulse of 1/ 120 second durati on.
MLL957B-92B.PDF 05-02-00
MLL957B,-1
thru
MLL992B,-1
±1% and ±2% Versions
“C” and “D” Available
1
2
3
4
5
6
7
8
9
10
20
30
40
50
60
70
80
90
100
200
300
0 20 40 60 80 100 120 140 160 180 200 220
At Zero Volts
At - 2 Volts (V
R
)
CAPACITANCE vs V Z CURVE
ZENER VOLTAGE V Z
FIGURE 2
CAPACITANCE VS ZENE R VOLTAGE
(TYPICAL)
TYPICAL CAPACITANCE IN PICOFARADS
