Microsemi Corporation MLL990B, MLL990B-1, MLL991B, MLL989B, MLL986B-1 Datasheet
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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)
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.
Electrical Characteristics (see next page)
STEADY STATE POWER DERATING
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1.4 |
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1.2 |
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Dissipation |
1.0 |
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0.8 |
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= Power |
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Dash 1 |
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0.6 |
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Metallurgically Bonded |
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D |
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P |
0.4 |
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Non-Dash 1 |
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0.2 |
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0 |
20 |
40 |
60 |
80 |
100 |
120 |
140 |
160 |
180 |
200 |
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0 |
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T E C End Cap Case Temperature (ºC) |
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FIGURE 1
MLL957B-92B.PDF 05-02-00
MLL957B,-1 thru MLL992B,-1
±1% and ±2% Versions “C” and “D” Available
LEADLESS GLASS ZENER DIODE SURFACE MOUNT
Package Dimensions In Inches
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MILLIMETERS |
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INCHES |
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DIM |
MIN |
MAX |
MIN |
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MAX |
A |
3.30 |
3.70 |
.130 |
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.146 |
B |
1.60 |
1.70 |
.063 |
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.067 |
U |
0.41 |
0.55 |
.016 |
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.022 |
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
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