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LMSZ5259BT1G PDF Datasheet - Leshan Radio Company

Part Number LMSZ5259BT1G
Description Zener Voltage Regulators
Manufacturers Leshan Radio Company 
Logo Leshan Radio Company Logo 
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LMSZ5259BT1G datasheet, circuit
LESHAN RADIO COMPANY, LTD.
Zener Voltage Regulators
500 mW SOD−123 Surface Mount
Three complete series of Zener diodes are offered in the convenient,
surface mount plastic SOD−123 package. These devices provide a
convenient alternative to the leadless 34−package style.
Features
500 mW Rating on FR−4 or FR−5 Board
Wide Zener Reverse Voltage Range − 2.4 V to 110 V
Package Designed for Optimal Automated Board Assembly
Small Package Size for High Density Applications
General Purpose, Medium Current
ESD Rating of Class 3 (>16 kV) per Human Body Model
We declare that the material of product
compliance with RoHS requirements.
Mechanical Characteristics:
CASE: Void-free, transfer-molded, thermosetting plastic case
FINISH: Corrosion resistant finish, easily solderable
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
260°C for 10 Seconds
POLARITY: Cathode indicated by polarity band
FLAMMABILITY RATING: UL 94 V−0
MAXIMUM RATINGS
Rating
Symbol
Max
Unit
Total Power Dissipation on FR−5 Board,
(Note 1) @ TL = 75°C
Derated above 75°C
PD
500 mW
6.7 mW/°C
Thermal Resistance, Junction−to−Ambient RqJA
(Note 2)
340 °C/W
Thermal Resistance, Junction−to−Lead
(Note 2)
RqJL
150 °C/W
Junction and Storage Temperature Range TJ, Tstg −55 to +150 °C
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
1. FR−5 = 3.5 X 1.5 inches, using the minimum recommended footprint.
2. Thermal Resistance measurement obtained via infrared Scan Method.
ORDERING INFORMATION
Device
Package
Shipping
LMSZ5221BT1G Series SOD−123 3000/Tape & Reel
LMSZ5221BT3G Series SOD−123 10,000/Tape & Reel
LMSZ5221BT1G Series
2
1
SOD−123
1
Cathode
2
Anode
MARKING DIAGRAM
1 xx
xx = Device Code
M = Date Code
Rev.O 1/6

1 page
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LMSZ5259BT1G pdf, schematic
ELECTRICAL CHARACTERISTICS (TA = 25°C unless
otherwise noted, VF = 0.9 V Max. @ I F = 10 mA)
Symbol
Parameter
VZ Reverse Zener Voltage @ IZT
IZT Reverse Current
ZZT Maximum Zener Impedance @ IZT
IZK Reverse Current
ZZK Maximum Zener Impedance @ IZK
IR Reverse Leakage Current @ VR
VR Reverse Voltage
IF Forward Current
VF Forward Voltage @ IF
LESHAN RADIO COMPANY, LTD.
LMSZ5221BT1G Series
I
IF
VZ VR
IIRZT VF
V
Zener Voltage Regulator
Rev.O 2/6

2 Page
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LMSZ5259BT1G equivalent
LESHAN RADIO COMPANY, LTD.
TYPICAL CHARACTERISTICS
LMSZ5221BT1G Series
1000
0 V BIAS
1 V BIAS
100
TA = 25°C
1000
100
10
1
BIAS AT
50% OF VZ NOM
10
0.1
0.01
0.001
0.0001
1 0.00001
1 10 100 0
VZ, NOMINAL ZENER VOLTAGE (V)
Figure 7. Typical Capacitance
+125°C
+ 25°C
− 55°C
10 20 30 40 50 60 70 80
VZ, NOMINAL ZENER VOLTAGE (V)
Figure 8. Typical Leakage Current
90
100 100
TA = 25°C
TA = 25°C
10 10
11
0.1 0.1
0.01
0
24
6 8 10
VZ, ZENER VOLTAGE (V)
0.01
12 10
30 50 70
VZ, ZENER VOLTAGE (V)
90
Figure 9. Zener Voltage versus Zener Current
(VZ Up to 12 V)
Figure 10. Zener Voltage versus Zener Current
(12 V to 91 V)
Rev.O 5/6

5 Page





Information Total 6 Pages
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