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1N4728A Datasheet, PDF (1/3 Pages) Motorola, Inc – One Watt Hermetically Sealed Glass Silicon Zener Diodes
1N4728A thru 1N4751A
Transient Voltage Suppressor
Breakdown Voltage 3.3 to 30 Volts
CASE: DO-204AL (DO-41)
Features
 Extensive Voltages selection from 3.3 to 30V
 Silicon 1.0 Watt Zener Diodes
 Hermetically sealed glass body construction
Application
 Voltage stabilization
 Regulates voltage over a broad operating current
and temperature range
 Flexible axial-lead mounting terminals
Mechanical Data
 Case: Void-free transfer molded thermosetting epoxy
效 body meeting UL94V-O
 Terminals: Tin-Lead or ROHS Compliant annealed
matte-Tin plating readily solderable per MIL-STD-750,
Method 2026
 Marking: Part number
无  Polarity: Cathode indicated by band
 Weight: 0.3g(Approximately)
印 Dimensions in inches and (millimeters)
打 Maximum Ratings and Electrical Characteristics @ 25OC unless otherwise specified
Symbol
Conditions
Value
Unit
PM(AV)
Steady state power at TL≤ 95℃ 0.375”(10mm) from body
Steady state power at TA≤ 35℃ when mounted on FR4 PC described for
thermal resistance (also see Fig.1)
1.0
W
1.0
W
VF
RθJL
RθJA
TJ, TSTG
Maximum instantaneous forward voltage at 200mA
Thermal resistance junction to lead
Thermal resistance junction to ambient
Operating and Storage Temperature
1.2
80
140
-65 to +175
V
℃/W
℃/W
℃
Document Number: 1N4728A thru 1N4751A
Feb.29, 2012
1
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