Document
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 VZ @ IzT (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 IzT mA 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 MAXIMUM ZENER IMPEDANC E ZZT @ IZT (NOTE 2) OHMS 30 30 29 28 24 23 22 19 17 11 7 5 6 8 10 17 30 MAXIMUM REVERSE CURRENT @ VR = 1 VOLT @25°C µA 100 75 50 10 10 10 2 2 1 1 .1 .1 .1 .1 .1 .1 .1 @ +150°C µA 200 150 100 30 30 30 30 30 20 20 20 20 20 20 20 20 20 MAXIMUM ZENER CURRENT IZM (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
αVZ
** 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 IZT at 60 Hz rms ac current equal to 10% IZT (2 mA ac). 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: 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)
PD = Power Dissipation
ZENER CURRENT (mA)
FIGURE 2
ZENER IMPEDANCE VS ZENER CURRENT (TYPICAL)
CAPACITANCE vs VZ 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 (VR )
0
20
40
60
80 100 120 140 160 180 200 220
ZENER VOLTAGE VZ
FIGURE 3
CAPACITANCE VS ZENER VOLTAGE (TYPICAL)
MSC0291.PDF 04-20-00
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