1SMA5945 데이터 시트보기 (PDF) - Motorola => Freescale
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1SMA5945 Datasheet PDF : 6 Pages
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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by 1SMA5913BT3/D
1.5 Watt Plastic Surface
Mount Silicon Zener Diodes
This complete new line of 1.5 Watt Zener Diodes offers the following
advantages.
Specification Features:
• Voltage Range – 3.3 to 68 V
• ESD Rating of Class 3 (>16 kV) per Human Body Model
• Flat Handling Surface for Accurate Placement
• Package Design for Top Side or Bottom Circuit Board Mounting
• Low Profile Package
• Available in Tape and Reel
• Ideal Replacement for MELF Packages
Mechanical Characteristics:
• Case: Void–free, transfer-molded plastic
• Maximum Case Temperature for Soldering Purposes: 260°C for
10 seconds
• Finish: All external surfaces are corrosion resistant with readily solderable
leads
• Polarity: Cathode indicated by molded polarity notch
• Mounted Position: Any
1SMA5913BT3
through
1SMA5945BT3
PLASTIC SURFACE
MOUNT ZENER
DIODES
1.5 WATTS
3.3–68 VOLTS
SMA
CASE 403B–01
PLASTIC
MAXIMUM RATINGS AND CHARACTERISTICS
Rating
Symbol
Value
DC Power Dissipation @ TL = 75°C (Note 1)
Derate above 75°C
PD
1.5
20
DC Power Dissipation @ TA = 25°C (Note 1)
Derate above 25°C
PD
900
7.2
Thermal Resistance from Junction to Lead
RθJL
29
Thermal Resistance from Junction to Ambient
RθJA
111
Peak Forward Surge @ TA = 25°C, (JEDEC Method, Note 3)
IFSM
20
Typical Ppk Dissipation @ TL < 25°C, (Note 2, PW–10/1000 µs per Figure 8)
Ppk
200
Typical Ppk Dissipation @ TL < 25°C, (Note 2, PW–8/20 µs per Figure 9)
Ppk
1000
Operating and Storage Junction Temperature Range
TJ, Tstg
150
1. FR4 Board, using Motorola minimum recommended footprint, as shown in case 403B outline dimensions spec.
2. Non–repetitive current pulse.
3. Measured on 8.3 ms single half sine–wave or equivalent square wave, duty cycle = 4 pulse per minute maximum.
Unit
Watts
mW/°C
mW
mW/°C
°C/W
°C/W
Amps
Watts
Watts
°C
REV 1
©1MSoMtoAro5la9, 1In3c.B1T9936 through 1SMA5945BT3
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